This counterweight upgrade, removes unwanted vibration and significantly improves the sound for your JMW 10 or 10.5 tonearms.
It is difficult to appreciate why a mechanical modification to the rear end of a tone arm should have such an enormous influence on the overall sound. To explain this phenomenon, it is helpful to grasp firstly, that the signals generated by the cartridge cantilever are extremely small. These signals are then amplified thousands of times to produce the output at the speaker.
It follows that the slightest source of unwanted vibration and resonance is also magnified equally. Not only can unwanted vibration be introduced (coloration), but this vibration also affects the cantilever movement to cause distortion. It is the elimination of this spurious vibration that results in the large differences that exist between mediocre and high end arms, that's where the JMW Counterweight fits in!
The JMW Counterweight's unique design and precision machining puts the weight below the center line of the arm tube for superior stability and tracking and also utilizes direct coupling (locking screw) instead of using o-rings (indirect coupling).
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 | Perfect in every way.
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| Perfect deal. DNM Solid Core Interconnect V3 Cable (Unterminated) off the reel per 0.5m | vesaas58 (356) | 14/05/2025 |
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| Excellent highly recommend Metallica - Hardwired... To Self-Destruct Pink VINYL LP BLCKND031-1 | andrew666black (184) | 14/05/2025 |
Payment
All items must be paid for within 7 days of the transaction date by one of the following payment methods:
Credit Card (All types accepted)
Paypal
Cheque
Postal Order
Bacs Transfer
If you are unable to make payment within the specified time period please let us know as soon as possible.
Returns
We want you to feel happy with your purchase, so if for any reason you are not, you may send your item(s) back to us within 14 days for a full refund or exchange-free of charge.
Please note, postage costs are non refundable except in the following circumstances:
* the item you receive is different to that ordered.
* OR the item you receive is damaged or faulty.
In the above cases a full refund/exchange will be issued including any additional postage costs incurred by the buyer.*
*Please note, we can only refund up to the minimum postage amount required to send your item(s) back to us. Therefore, we always recommend that items be returned to us using royal mails 2nd class service with recorded delivery for insurance purposes.
All items must be returned to us in their original condition within 14 days of receipt. Please let us know before hand why you are planning on sending an item back to us and remember to include this information in your return. It is also vital that you include your user id & item number so we can deal with your request for a refund or exchange as quickly as possible
All refunds will be issued via your original method of payment and normally take up to 3 working days to process.
