This high efficiency setup seems a mismatch to the power amp. It seems like a low power SET would be everything the Zus would need and that your C-Js are better suited to a less efficient speaker.
Preamp Gain issues with high efficiency speakers
Hey all,
Been having a hard time with my system lately.
I recently got a pair of Zu Soul 6 that are 100db efficient. My power amp is a Conrad Johnson Premier 11 (70wpc) and my Preamp is a Conrad Johnson ET3-SE that has 25db of gain. Source is a streamer (PI2AES) with Denafrips Pontus II DAC, but it is the same regardless of source.
My issue is that even at 1 out of 100 on my preamp, the volume is still quite loud. If I were to turn it up to 30, I would be well north of 95db.
Due to a new baby, most of my listening is at low volumes.
I have been using in line attenuators but I feel like it adds a slight veil to the sound of the music.
I swapped out my Preamp for a Schit Sys passive pre and I could only turn the knob to maybe 7 or 8 pm before it was LOUD. I figured with a passive no gain pre I would be able to have more control over the volume, but this was not the case.
Is this Amp just a bad match for my speakers? I have read that it is better to have your pre running closer to 40-70% so that you are not attenuating the signal too much but I can barely get it to 5-10% before its quite loud.
Any insight, recommendations would be appreciated!
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- 43 posts total
I had a similar problem with ZU Omen Defs with a sper High gain amp (STA200). I placed a Schitt passive pre amp between my main pre and power amp and adjusted accordingly. Worked like a charm https://www.schiit.com/products/sys
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I bought hi eff speakers, 100 db. Digital volume on the Bluesound was terrible. My old preamp didn't work I have a Khozmo with Pass XA25. It takes 1.25V to get full output on my amp. Input sensitivity is 50k ohms. I have no issues. Khozmo can even accommodate different input sensitivities on your amp. I gave all my specs to Arek and everything matches. You can spend more for potentiometers but the Khozmo IS pretty transparent. I paid for upgraded resistors and I think it was still <$600. |
- 43 posts total