1000 hours (ML) vs. 800 (SH) as a rough estimate.
Why would it be of no benefit on a MM cart?
Has anyone tried the rigB body on a AT VM 5xx/7xx ?
20dB @1kHz according to A-T.Interesting, the AT-3600L has channel separation of 24DB
https://www.lpgear.com/product/ATC3600L.html
In the P-Mount world, standard AT body - 3000 series - has always had superb separation:20dB @1kHz according to A-T.
Interestingly, for decades, A-T listed the channel separation of many of their budget MMs as 'More than 20'. In recent years they began simply listing them as 20dB.
As channel separation is ultimately limited by electrical crosstalk, A-T could have easily fitted a permalloy shield between the coils (like that of the VM series) and got nearer to 30dB. Then again, they likely didn't want to encroach upon the specs of their own dearer models, preferring instead to build down to a price; something that began in the later 1970s with their growing OEM market.
Looking back, it appears all the more ironic that they've recently taken to fitting posh nude tips to their budget generator. Said irony being related to them having majored on novel generator designs that excel in such areas as channel separation and crosstalk since the 1960s.*
* In the early 1970s the lowest spec A-T cartridge offered channel separation of 28dB @1kHz and channel balance of +-1dB. This was but one model, the rest were all 30dB and +-0.5dB. By the late 1970s, their budget standard was down to 20dB @1kHz on separation and up to +-2dB on balance.
* In the early 1970s the lowest spec A-T cartridge offered channel separation of 28dB @1kHz and channel balance of +-1dB. This was but one model, the rest were all 30dB and +-0.5dB. By the late 1970s, their budget standard was down to 20dB @1kHz on separation and up to +-2dB on balance.
Your question reminds me of the phrase 'fidelity to what?'.Isn't this making assumptions about the subjective importance of channel separation verses the unknown cost of improving it?
Exactly what I’ve got on my SL-7 (or the original Technics 202).In the P-Mount world, standard AT body - 3000 series - has always had superb separation:
https://www.lpgear.com/product/ATC3003.html
This is what LPGEAR's nice Shibata and ML versions are based on.
Other than Grado Gold, these are the best modern P-Mount carts.