2. amps-preamps
  3. 1304036269

help me to understand the gain

I have a problem that the gain is too high. I can only turn the volume knob to 7 o'clock position, with the 0 at 6 o'clock. I am sort of ok when using my computer where I can lower the volume in iTunes. But from my CD player, I cannot.
I am using Maverick Audio DAC, PrimaLuna Progloue 3, McCormack DNA-1, and B&W CDM9NT.

CDM9NT - 90db sensitivity
PrimaLuna - gain 12db(4x), input impedance - 100k Ohm, output impedance - 2800 Ohm
McCormack - input impedance - 100k Ohm, 150Wpc RMS into 8 ohms (21.8dBW)

is that my equipments are out of synergy? I just bought a pair of Zu which is 101db sensitivity, does that mean it will be a even bigger problem? should I buy another preamp with less gain, or should I buy another amp with less power output?
gte357s

Showing 1 response by armstrod

armstrod
602 posts
 
Less power output won't solve your issue - gain is separate from power. According to Stereophile, the DNA-1 has a gain of 32dB! That's really high, and a big part of your problem. I would investigate either a passive preamp or, if you like the Primaluna, talk to Steve McCormack (http://smcaudio.com/) and see if he can cut down the gain on your DNA-1.

The problem will definitely get worse with the Zus. I own Druids, and had to take some gain out of my power amp to make the system work.

David
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