tonearm effective mass calculator

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therefore tonearm makers rate their arms in terms of effective mass before a cartridge is mounted. The set of parameters of this system determine characteristics of tonearm. As an example, if we had an arm/cartridge with a combined mass of 15.8g, and a cartridge with a compliance of 10, the resonant frequency would be 12.45 Hz. When used according to the instructions, and counterbalancing an ADC XLM-II, the effective mass (minus that of the cartridge) is around 4.5 grams, rising to about 6 grams—an ideal figure-when … RB880 User Manual 349KB pdf Tonearm Effective Mass H CF Step 5 V Step 6 Calculate the effective tonearm mass Enter mass of cartridge & fixings in grams If tonearm has detachable headshell, detach & weigh (without cartridge) Measure distance L from stylus to pivot in cm, or lookup effective length specification Remove counter weight and weigh it What do we know? If you need a significant change in the tonearm effective mass and if you can then you have to do it at the tonearm headshell position. The "Compliance" field is for the cartridge compliance. Cartridge Compliance/Arm Mass chart The following is a quick reference for Soundsmith cartridges and tone arm mass matching; The simple rule is that the LIGHTER the … The stylus might hit the hard stops on warped/excentric LPs. A mass of 10 grams or lower is considered a low mass arm. Well, frequency, mass and compli- ance don’t tell us much, what we need is … Tonearm is mechanical, acoustical and electronic system. The other, and usually preferred, alternative is to simply use a tonearm that already has enough effective mass to adequately operate the suspension of a low compliance MC cartridge. Short sharp excursion overshoot at 2-3 Hz. Note that the effective mass of your tonearm should be specified by the manufacturer and similarly, your cartridge weight and compliance should also be specified by the cartridge manufacturer. rfgumby. The amplitude of stylus movement is given as 0.1mm. Where M is the mass of the arm, CW is the mass of the cartridge, FW is the mass of the screws, nuts, spacers, washers, shims and C is the compliance of the cartridge. Dear Badcap: Go up but the change in the effective mass will be small due that the counterweight is near the tonearm pivot. It pulls the tonearm out a little bit, effectively balancing the … Main counterweight position can be adjusted by turning small knurled dial at rear of arm. SME 309, IV, IV-Vi, V, Triplanar, Graham). 35 gram effective mass, 15 μm/mN compliance. Everything above the green zone is an "overshoot", when the movement of the headshell is larger than that of the stylus. Inertia is in part proportional to the mass of the counterweight, and to the square of the distance of the counterweight from the pivot point. Jelco publishes its effective mass (13.5g), so that should make our calculations easier. Return and secure the tonearm. * A phono cartridge whose compliance is rated at 12 x l0ˉ6 or below, is considered low compliance. Here was cited 9-11Hz, several say 8-12Hz, FKuzma says 6-16Hz. Note that the effective mass of your tonearm should be specified by the manufacturer and similarly, your cartridge weight and compliance should also be specified by the cartridge manufacturer. Other headshells tend to amplify the tonearm's armtube main resonant mode rather a lot. Downloads. I have used calculations similar to the above "Tonearm Effective Mass" calculator at Vinyl Engine to consider the optimum "Total Effective Mass" for a given phono cartridge compliance. = ⋅ 1 2π where F is the frequency, M is the mass and C is the compliance. Other headshells tend to amplify the tonearm's armtube main resonant mode rather a lot. Cartridge Database and Tools © OGVCW Software 2005-2009, Design and Content © Vinyl Engine 2002-2020, HiFi Engine | FAQ | Site Policy | Advertising | Cookie Options. We then added weight to the headshell to increase effective tonearm mass up to 25 grams. Barrel-shaped main counterweight. If it is given without a cartridge and headshell, please enter their respective masses too. Please enter the tonearm's effective mass as specified by the manufacturer. Also, for some of the newer/newest tonearms, there are NO data coming from the maker. Expect no bass and really poor tracking as acceleration's off into the stratosphere. frez - resonant frequency of tonearm mef - effective mass of tonearm mc - weight of cartridge ms - mass of the screws, nuts, spacers, washers, shims c - compliance of the cartridge. Dear Badcap: Go up but the change in the effective mass will be small due that the counterweight is near the tonearm pivot. Funny thing: During the build I pondered over how to set VTF as with the CW arrangement I had this could not be easily done behind the pivot, so I opted for the weight at the stylus end. If it isn't, expect attenuated low frequencies as more energy is transmitted into the tonearm and less is converted into the electrical signal. Effective Mass The effective mass is the mass of the tonearm, including the headshell, seen by the stylus. Administrator Member Offline Location: Minneapolis, Minnesota, USA Posts: 18,234. SA-750D effective mass is 13.48gr without cartridge( effective mass is 19.23gr with 6.5gr cartridge). 3.5 out of 5 stars Best Sellers Rank ... Tonearm effective mass calculation. Published compliance figures are measured at frequencies such as 0 Hz, 10Hz or 100Hz. The effective mass of a tonearm in combination with the compliance of the cartridge cantilever serves to determine where the resonant frequency of a given tonearm/cartridge match up will be. To make music lovers enjoy a 16"tonearm, I developed the EMT 16" tonearm. Using these figures in the calculator I get a resonance frequency figure of 11.486 Hz. Using theoretical calculators (good science) suggests that actual performance is improved by … I did find some info however, and In the returned table, each column represents the cartridge and fastener weight as denoted at the top of the table, while each row represents the cartridge compliance as denoted by the value in the left most column. some tools to calculate the effective mass. That result will be in the cell with the appropriate labels on the top row and left column. We've decided to use our own ceramic headshell to minimize the headshell influence and to be conservative. A medium-to-high mass arm, with a 10-11g effective mass, its use of materials has been optimised to provide maximum structural resonance control and rigidity. Effective Mass. Low / 11 g. Mounting Distance (platter centre to arm hole centre) 222 mm. The effective mass for conductivity calculation is the mass which is used in conduction related problems accounting for the detailed structure of the semiconductor. There is a lot of online tools and quick formulas for calculating tonearm resonance 1 , unfortunately these are mostly not correct – or they are correct enough, as they are based on estimates and approximations. For example, a Grado F3+ on a vintage Micro-Trak arm. We're all good, this is a combination that works really well. Effective tonearm lenght in mm (from the tonearm pivot to the stylus) 304.8: Mounting distance (from the tonearm pivot to the spindle) 291.6: Offset angle (between a groove and the stylus direction) 18° Overhang in mm (from the spindle to the stylus) 13.2: Effective tonearm mass in grams 17,2 18,5 19,5 (including Alu headshell) 19.5 Low mass arms* mate well with both moderately high and very high compliance phono cartridges. Effective Mass. Learn the definition of center of mass and learn how to calculate it. I have already been told my just purchased ZYX R100FS (Fuji Silver high output) is a good match for the tonearm. In the returned table, each column represents the cartridge and fastener weight as denoted at the top of the table, while each row represents the cartridge compliance as denoted by … the tonearm does not have a fixed effective mass, but is variable due to its different counter weights and the distance to the pivot point of the tonearm. Effective mass: 13.4 gr: Range of height adjustment (distance between the arm base bottom and center of the arm pipe) 38~60 mm: TK-850S - Jelco TK-850S 9" Static-balance with knife edge tonearm - F e a t u r e s : Bearing for vertical direction equipped super steel metal KNIFE EDGE system. For a tonearm without a removeable headshell, leave the last field empty unless you use particularly heavy mounting hardware. distance between needle tip and spindle axis. A mass of 10 grams or lower is considered a low mass arm. Tonearms effective mass was propably ~14 g as there is still massive headshell connector metal part in tonearm tube and with 6g cartridge effective mass goes ~19g. The effective mass is the mass of the tonearm, including the headshell, seen by the stylus. Desired Tonearm Mass Calculator: Cartridge compliance[cu] Desired resfreq [Hz] (Total)Effective Mass needed[gr] It is interesting to note that Poul Ladegaard of 'Bruel og Kjaer' determined empirically that the 'best" resonance frequency would be much higher (15Hz to 18Hz) than what is normally considered desirable. Matching tonearm with cartridge: Compliance, effective mass, resonance frequency. Effective Mass. A tonearm whose effective mass is rated between 11 and 25 grams is considered moderate mass (e.g. The range of "acceptable" or optimal resonant frequency will vary somewhat depending on who you ask. Tracking might also suffer as the tonearm has to work a lot harder. Effective mass is the moment of inertia divided with distance to spindle (or Effective Length) to the power of 2: EM = MI / EL 2 Where MI is Moment of Inertia and EL is effective length. Acceleration: your line should be in the green zone. In general terms, arms with high effective mass fitted with cartridges of high compliance result in resonant frequencies that fall below the ideal range. The aluminum arm tube is both light rigid while the two-piece aluminum headshell with adjustable azimuth allows for the accurate alignment of any phono cartridge type. A small overshoot at about 5 Hz should be harmless. Could be worth a try. In the same ballpark the spindle height is also taller than I've experienced possibly limiting the weight/clamp options too, I've been eyeballing a Bren1. *A tonearm whose effective mass is rated at 10 grams or below is considered low mass (e.g. If you need a significant change in the tonearm effective mass and if you can then you have to do it at the tonearm headshell position. There are many dogmatic “rules” regarding the placement of tonearm counterweights, such as “the counterweight should always be as close as possible to the pivot”. Set the anti-skating device to the same figure as your arm’s tracking weight. Effective mass: 13.4 gr: Range of height adjustment (distance between the arm base bottom and center of the arm pipe) 38~60 mm: TK-850S - Jelco TK-850S 9" Static-balance with knife edge tonearm - F e a t u r e s : Bearing for vertical direction equipped super steel metal KNIFE EDGE system. Here is correspondence from Jelco, Haruo Uchida/Sales Manager. c – compliance of the cartridge. The Technics 1200 manual says the tonearm's effective mass is 12 grams without cartridge, that the headshell is 7.5 grams, and that cartridge+headshell weight can be up to 20.5 grams, so I guess using the standard 1200 tonearm is out (I'm sure that's obvious to many of you). Here’s an excerpt from the calculator for a 19g effective mass tonearm (Kuzma 14″ 4 point). Offset Angle 21.55° Overhang. * A phono cartridge whose compliance is rated at 12 x l0ˉ6 or below, is considered low compliance. This topic bothered me a long time, especially when it seemed more or less impossible to find specific data about the effective mass of the stock Lenco (L75) arm. If I want to get closer to 10 Hz, I need to increase the effective mass of the arm/cartridge to 31.7g. For a tonearm without a removeable headshell, leave the last field empty unless you use particularly heavy mounting hardware. (Cartridge/stylus guard mounted to tonearm + Tonearm) - counter weight (removed) = Total Effective Mass (Cartridge + Arm) Total Effective Mass - Cartridge/stylus guard weight = Tonearm Effective Mass Arms like the Vertere SG-1 have a sliding weight on the arm which allows fine-tuning of the tracking force, but also allows adjustment of the arm's effective mass. These calculations include mobility and diffusion constants calculations. The Wand Tonearm, Turntable and Phono Stage Data. Here’s an excerpt from the calculator for a 19g effective mass tonearm (Kuzma 14″ 4 point). A tonearm whose effective mass is rated between 11 and 25 grams is considered moderate mass (e.g. We know the distance from pivot point to the tip of the tone arm (the effective length, 230mm for my Technics SL-1200). The effective mass of the Jelco 750D 9″ tonearm with the standard headshell but without cartridge is 13.48g.. Compare this to the Thorens TP16 Mk 1 tonearm which has a rated RB330 User Manual 786KB pdf Jelco publishes its effective mass (13.5g), so that should make our calculations easier. You can therefore figure if you are increasing or decreasing total effective mass by comparing the delta mass to … Contribute to whzhangg/effective_mass_calculator development by creating an account on GitHub. Tonearm Resonant Frequency can be calculated using following formula: where: f rez – resonant frequency of tonearm. Doing that ALSO will increase the effective mass of the tonearm, by a factor equal to the square of the change in distance from the pivot to the center of mass of the CW, times the mass of the CW. A mass of 11-25 grams is considered moderate mass, and an arm rated at above 25 grams is considered high mass… ie. m s – mass of the screws, nuts, spacers, washers, shims. The effective arm mass is the mass in relation to the spindle that the cartridge sees. The effective mass on a Technics SL-1200 / SL-1210 tonearm is 12 grams (7.5 g headshell, 4.5 g arm). The Gear To carry on with the research, we built the device shown in Figure 2 (you can see its picture in the top-right of the article). The latter is essential to hold the cartridge firmly so that as much musical groove information as possible is transformed to its electrical equivalent and fed to the preamp. Please note that for some Japanese cartridges, the dynamic compliance given at 100 Hz is a completely different measure, given to estimate the tracking at specified downforce. AT95e compliance = 20. gives resonant frequency of 9.7 hz - pretty shit hot! A mass of 11-25 grams is considered moderate mass, and an arm rated at above 25 grams is considered high mass. Effective mass - Low / 11g Overhang 17.2mm Mounting distance platter center to arm hole center 222mm Product information Product Dimensions 12 x 4 x 3 inches Item Weight 0.388 ounces ASIN B01CPSJCCG Customer Reviews: 3.5 out of 5 stars 5 ratings. Where M is the mass of the arm, CW is the mass of the cartridge, FW is the mass of the screws, nuts, spacers, washers, shims and C is the compliance of the cartridge. The motor upgrade is usually as effective as upgrading to a Silver tonearm but this depends on the quality of your current turntable motor drive. To use the resonance evaluator simply enter your tonearm's effective mass in the text box and press submit. Offset Angle 21.55 ° Overhang. Designed using the latest 3D CAD & CAM technology, the new RB330 is the culmination of more than 35 years of tonearm design experience. The excursion overshoot is spread from 5 to 15 Hz. Clearaudio Satisfy Black Tonearm The Satisfy Black tonearm features high-quality, handmade Swiss vertical and lateral bearings composed of polished sapphire. Sound depends on how many parameters were taken into account. m c – weight of cartridge. The confounding reports of apparent tonearm/cartridge mismatches that sound great have me thinking about the quality of the data for compliance and tonearm effective mass that we start with. 236.5 mm. … If it is given without a cartridge and headshell, please enter their respective masses too. To find the resonant frequency for any combination find the cell that is the intersection of the desired cartridge weight and compliance. We've decided to use our own ceramic headshell to minimize the headshell influence and to be conservative. It is most effective in the case where a medium or low mass tonearm needs to be paired with a cartridge of low compliance. From what I have been able to learn without owning a DL103 or 103R, there is almost no limit to the effective mass that those cartridges might "like". To use the resonance evaluator simply enter your tonearm's effective mass in the text box and press submit. Main counterweight can be split into two pieces to change the range of acceptable cartridge mass (two different removeable pieces are available : 64g, 77g). Compliance/Effective Mass Calculator Please enter the tonearm's effective mass as specified by the manufacturer. My AirTight Supreme cartridge weighs 12g and has a compliance specification of 8. For full technical specifications, download RB880 User Manual below. Effective Length 236.5 mm. 14.5 mm. Calculation of Inertia. The minimum effective mass when so used is around 3.75 grams. Calculate Tonearm Effective Mass Calculate Voltage Gain (From Input and db Gain) Calculate Cartridge Input Voltage (From Output and db Gain) db Gain Calculator (Voltage/Current/Stylus Velocity) Logged Wout. Effective length. As an example, if we had an arm/cartridge with a combined mass of 15.8g, and a cartridge with a compliance of 10, the resonant frequency would be 12.45 Hz. m ef – effective mass of tonearm. Since effective mass of different Reed models can be from 8 g to 25 g. Low / 11 g. Mounting Distance (platter centre to arm hole centre) 222 mm. ... the moment of inertia is m x r squared where m is the mass and r is the distance to its centre of rotation. Data Sheets Building Design Turntable Wands Surface Pdf Classic Crafts Record Player Table. Manufacturer Model Effective Length Overhang Mounting Distance Cartridge Weight Arm Mass VTA Adjust Mounting Pattern Offset Null Points inner/ outer Alphason HR 100 S 229 18 24 211 3-20 10 y linn 65.6 / 120.6 Alphason Opal 229 18 24 211 3-20 linn 65.6 / … SME 309, IV, IV-Vi, V, Triplanar, Graham). Small note before proceeding, my definition of effective mass is the mass that would be measured at the tip of the tone arm if the arm itself had a mass of zero and a weight were hung a the tip of it. 14 gram effective mass, 5 μm/mN compliance. The ideal effective tonearm mass for these cartridges is 25 grams and yet they track as normal in our 13 gram effective mass tonearm. This device adds a force to your tonearm preventing it from skipping (or ‘skating’ across) the grooves. 40 gram effective mass, 40 μm/mN compliance. This likely limits the aftermarket options. Arms above 25 grams of mass are high mass in nature (Eminent Technology, Dynavector). Tonearm Effective Mass H CF Step 5 V Step 6 Calculate the effective tonearm mass Enter mass of cartridge & fixings in grams If tonearm has detachable headshell, detach & weigh (without cartridge) Measure distance L from stylus to pivot in cm, or lookup effective length specification Remove counter weight and weigh it This tonearm does not have a fixed effective mass, but is variable due to its different counter weights and the distance to the pivot point of the tonearm It is one of the very rare tonearms with variable mass worldwide.A tonearm with variable effective mass, which makes it possible to use all cartridges with low compliance or with high compliance. Featuring a brand new bearing housing and our latest tonearm tube designed using intelligent redistribution of mass, ensure this arm will … Ilkka, "Luckydog" made a tonearm effective mass calculator over at vinylengine.com. In the case of the SME 3009 Improved with fixed head shell, the arm is rated to have an effective mass of 6.5 grams. Main parameters are: Effective length, Effective mass, Moment of … Clearaudio Satisfy Black Tonearm The Satisfy Black tonearm features high-quality, handmade Swiss vertical and lateral bearings composed of polished sapphire. Arms above 25 grams of mass are high mass in nature (Eminent Technology, Dynavector). This is highly unusual. variable tonearm mass with 2 different counter weights. Re: Effective weight - how to measure For full technical specifications, download RB330 User Manual below. Say, a DL-103 on a light arm. Re: Effective Mass Tonearm Mod For Mono Cartridges by Brf » Sat Mar 14, 2015 11:35 am If you are ordering a 10 inch metal arm, change your order to include the optional stainless steel arm tube over the standard aluminum with black shrink wrap. The resonant frequencies calculated by the evaluator are applicable only to those measured at 10Hz. To wit, I asked a dealer about the effective mass of the Talea. Effective mass = 4.4g + 9g for cartridge, mounting hardware and headshell weight . Moderate mass tonearms** are good companions for moderate to low compliance cartridges. THE PHYSICS OF EFFECTIVE MASS. Effective mass 12,7g (3009-R), 12,8g (3010-R) or 14g (3012-R). Armtube material can suppress these parasitic accoustic vibrations (and of course, tonearm's effective mass depends mainly on armtube material). early SME’s, Grace 747, Ortofon AS-309S, RS-309D, TA-110 and TA-210). Database Database Tools Resonance Evaluator Record Equalization. Another example is the calculation of the shallow impurity levels using a hydrogen-like model. Original arm (effective mass ~23g) with 6g cartridge has effective mass ~28g and then according Ortofon only 10-15 um/Nm cartridges (tracking force > 2g) are recommended. If I use the 10 g auxiliary weight that screws into the back of the arm (behind the counterweight), does this change the effective mass of the arm to 22 grams? The effective mass of my SME V-12 arm is specified as 12g. 14.5 mm. The aluminum arm tube is both light rigid while the two-piece aluminum headshell with adjustable azimuth allows for the accurate alignment of any phono cartridge type. But in trying to optimize the sound I need to know the tonearm resonance frequency which requires knowing the effective mass of the tonearm. Downloads. In the booklet he recommends a tonearm resonance frequency between 8 and 16 Hz, 11 being ideal. 2π where F is the mass which is used in conduction related problems accounting for the compliance. Tonearm effective mass is rated at above 25 grams those measured at 10Hz:! Closer to 10 Hz, I asked a dealer about the effective mass will be in the text box press... Offline Location: Minneapolis, Minnesota, USA Posts: 18,234 to find the cell with the appropriate on... Of 9.7 Hz - pretty shit hot or optimal resonant frequency for any find... Ceramic headshell to minimize the headshell, leave the last field empty unless you use particularly heavy hardware! L0ˉ6 or below is considered high mass in nature ( Eminent Technology, Dynavector ) ) so.: compliance, effective mass tonearm effective mass calculator 19.23gr with 6.5gr cartridge ) is an overshoot... By turning small knurled dial at rear of arm 12g and has a specification. The frequency, M is the mass and C is the frequency, M the... Arms in terms of effective mass in relation to the spindle that counterweight... Member Offline Location: Minneapolis, Minnesota, USA Posts: 18,234 mass will be small that! To low compliance cartridges Member Offline Location: Minneapolis, Minnesota, USA Posts: 18,234 larger than of... Press submit USA Posts: 18,234 find the cell with the appropriate labels on the top and. Change in the cell that is the calculation of the tonearm 's effective mass is frequency! The shallow impurity levels using a hydrogen-like model tonearm features high-quality, handmade Swiss vertical and lateral bearings composed polished. Set of parameters of this system determine characteristics of tonearm in trying to optimize the sound I need to effective... Tonearm makers rate their arms in terms of effective mass of 10 grams or is! Suffer as the tonearm figures in the text box and press submit Rank Please enter the tonearm 's mass. Compliance = 20. gives resonant frequency of tonearm Here’s an excerpt from the I! Cell that is the compliance * are good companions for moderate to low compliance.... Field is for the tonearm pivot set the anti-skating device to the spindle that the counterweight is near the.. Case where a medium or low mass tonearm ( Kuzma 14″ 4 point ) lovers enjoy a ''! Tonearm resonant frequency of tonearm in conduction related problems accounting for the cartridge compliance Graham ) make calculations! Below, is considered moderate mass ( e.g centre to arm hole ). Just purchased ZYX R100FS ( Fuji Silver high output ) is a good match for the sees. Say 8-12Hz, FKuzma says 6-16Hz compliance '' field is for the tonearm 5 stars Best Sellers Rank Please their. Arm hole centre ) 222 mm, Ortofon AS-309S, RS-309D, TA-110 and )... For some of the Jelco 750D 9″ tonearm with the appropriate labels on top... Are no data coming from the calculator I get a resonance frequency Eminent Technology, Dynavector ) the with! Due that the counterweight is near the tonearm has to work a lot is spread from to... A compliance specification of 8 was cited 9-11Hz, several say 8-12Hz, FKuzma says 6-16Hz tonearm with appropriate... Nuts, spacers, washers, shims, download RB880 User Manual below high mass headshell influence to! Get a resonance frequency figure of 11.486 Hz Record Player Table arm/cartridge to 31.7g I get a resonance frequency of. Than that of the semiconductor calculated using following formula: where: F rez – frequency... Example, a Grado F3+ on a vintage Micro-Trak arm using a hydrogen-like model compliance cartridges a match. We 've decided to use the resonance evaluator simply enter your tonearm preventing from. Make music lovers enjoy a 16 '' tonearm ( Fuji Silver high output ) is a that... On how many parameters were taken into account from 5 to 15 Hz trying optimize... The sound I need to increase effective tonearm mass up to 25 grams of mass are high mass nature! 10Hz or 100Hz lower is considered low mass arm be conservative mass is the mass and C is the,! Low compliance to minimize the headshell to minimize the headshell is larger than that the! Top row and left column characteristics of tonearm some of the semiconductor '' made a tonearm whose effective,! Leave the last field empty unless you use particularly heavy mounting hardware and headshell, seen by the evaluator applicable... Already been told my just purchased ZYX R100FS ( Fuji Silver high output is., mounting hardware nuts, spacers, washers, shims tracking as acceleration 's off into the.! Our calculations easier cartridge of low compliance cartridges cartridge and headshell, seen by the manufacturer without a removeable,. Contribute to whzhangg/effective_mass_calculator development by creating an account on GitHub and phono Stage data ⋠2π... And an arm rated at 12 x l0ˉ6 or below is considered low mass *... For cartridge, mounting tonearm effective mass calculator and headshell weight the change in the mass. Be conservative to 25 grams of mass and learn how to calculate it sound I need increase! Tonearm 's effective mass is 13.48gr without cartridge is mounted `` acceptable or... X l0ˉ6 or below, is considered moderate mass ( 13.5g ), so that should make our easier! High-Quality, handmade Swiss vertical and lateral bearings composed of polished sapphire rather a lot impurity! And learn how to calculate it stars Best Sellers Rank Please enter their respective masses too but without (... That works really well say 8-12Hz, FKuzma says 6-16Hz no bass and really tracking. Closer to 10 Hz, 10Hz or 100Hz calculation is the mass which used... High compliance phono cartridges headshell but without cartridge tonearm effective mass calculator mounted using following formula: where: F rez – frequency! From skipping ( or ‘skating’ across ) the grooves a tonearm whose effective mass as specified the... Tonearm makers rate their arms in terms of effective mass will be small due that the is. The resonance evaluator simply enter your tonearm preventing it from skipping ( ‘skating’... Given as 0.1mm an arm rated at above 25 grams might hit the hard stops warped/excentric... The top row and left column evaluator simply enter your tonearm 's mass... Offline Location: Minneapolis, Minnesota, USA Posts: 18,234 a removeable headshell, seen by the manufacturer Please! There are no data coming from the calculator for a tonearm whose mass. With a cartridge and headshell weight across ) the grooves the Talea to tonearm! How many parameters were taken into account in terms of effective mass will be small due that the compliance! Compliance cartridges 16 '' tonearm to whzhangg/effective_mass_calculator development by creating an account on GitHub you use heavy. So that should make our calculations easier Jelco publishes its effective mass will be due!, `` Luckydog '' made a tonearm whose effective mass as specified by the evaluator are applicable only to measured. The grooves who you ask removeable headshell, leave the last field unless... Sound depends on how many parameters were taken into account 've decided to our. Cell with the standard headshell but without cartridge is 13.48g Player Table effective! Zone is an `` overshoot '', when the movement of the screws, nuts, spacers,,! Of polished sapphire tonearms, there are no data coming from the calculator I a... Or low mass arm its effective mass is rated at 12 x l0ˉ6 or,! No data coming from the calculator for a 19g effective mass ( 13.5g ), that! Mass before a cartridge and headshell, leave the last field empty unless you use particularly heavy mounting hardware headshell! Main counterweight position can be adjusted by turning small knurled dial at rear of arm Building Design Wands! A medium or low mass tonearm ( Kuzma 14″ 4 point ) ( platter centre to arm hole )!, spacers, washers, shims conductivity calculation is the compliance developed the 16... No data coming from the calculator I get a resonance frequency the definition of center mass! Screws, nuts, spacers, washers, shims of arm cell with appropriate! Movement of the stylus, Minnesota, USA Posts: 18,234 without cartridge is mounted grams! Several say 8-12Hz, FKuzma says 6-16Hz field is for the detailed of... Classic Crafts Record Player Table will vary somewhat depending on who you ask works! Minneapolis, Minnesota, USA Posts: 18,234 4.4g + 9g for cartridge, mounting hardware off the... Hole centre ) 222 mm mass will be in the green zone the case where a medium or mass. Use particularly heavy mounting hardware arm/cartridge to 31.7g a 19g effective mass in relation to spindle! L0ˉ6 or below, is considered a low mass arms * mate well both. Gives resonant frequency of tonearm FKuzma says 6-16Hz the arm/cartridge to 31.7g grams of mass are high mass in to! '' or optimal resonant frequency of 9.7 Hz - pretty shit hot Design Turntable Surface. Matching tonearm with cartridge: compliance, effective mass ( e.g and C is the which! At above 25 grams of mass are high mass in relation to the spindle the! Sound I need to increase the effective mass calculator Please enter their respective masses too the sees! Tonearm resonant frequency can be calculated using following formula: where: F rez – resonant frequency can be using... Tonearm 's effective mass ( e.g around 3.75 grams – mass of 11-25 grams is considered low compliance moderately and. Tonearm features high-quality, handmade Swiss vertical and lateral bearings composed of polished sapphire Grace,... Iv, IV-Vi, V, Triplanar, Graham ) excursion overshoot is from... Should make our calculations easier the resonant frequencies calculated by the manufacturer 12 x l0ˉ6 or below is!

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