by Waxxy » Sun Mar 25, 2018 2:29 pm
Update...
I've moved the AT150sa over to my Aries / JMW-10 and there is significantly reduced woofer pumping. This may be partially due to a change in tonearm mass, but I also believe the fluid damping is doing it's job and attenuating the low frequency arm / cartridge resonance. The AT150sa sounds even better on this combo, gaining a dollop of weight while losing a bit of edge / grain. How much of this is down to better tracking on the arm, or the different sonic signatures of the two turntables (Scout / Aries) I can't say, but the AT is one hell of a cart and is a great match for either combo.
As far as the subsonic filter, I've had phono stages with them and without. One of the phonos had it built into the circuit and you couldn't turn it off. I liked the sound of that particular unit, but when I have the option of turning off the subsonic filter, I prefer the overall sound without one in circuit. Mind you, if I'm going to crank up some tunes, I'll engage the SS filter to keep distortion as low as possible. It's nice to have the option. Especially if running low powered amps and / or speakers with small main drivers. I'm doing the latter at the moment.