Best Preamp and Amp combination, interesting finding!!!


Hi all,

Yesterday, I decided to conduct a very interesting experience using my amp and preamp combinations. In the interest of fair discussion and also avoiding brand war, please allow me to conceal the name of the amps and preamps, knowing that both amps and preamps came from the same manufactures. The combinations are as below: 

Combination 1 (C1): $3000 preamp + $1000 amp
Combination 2 (C2): $1000 preamp + $3000 amp.

I went back and forth between C1 and C2 several times with multiple people, using the same speakers and DAC. The volume of both C1 and C2 was adjusted to be equal using my Db meter. 
At the end of the experience, almost everyone including me prefers C1. Which is a higher-end preamp combined with the lower-end amp. 
I was surprised by that finding. I always thought that the amp has a greater impact to sound quality, but my experiment proved otherwise. If you have any similar experiences, please let me know. I would like to understand why it happens that way. Why the preamp has a greater impact on the overall sound quality comparing to the amp?
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Showing 1 response by hshifi

Hello,
I do agree the preamp is the heart and soul of the system. I tried for years using a $3500 Denon receiver as a two channel system. The one thing I found is you have to work so hard to get ok two channel sound compared to using a decent dedicated two channel preamp. It’s not the amps as much as it’s the preamp. Better interconnects and speaker cables helped, but putting on the Nordost power cable had the most impact to my surround system. Especially when you have a lot of channels. I added a better external audiophile amp to the front two channels which helped but the sound stage and decay stayed the same. So I made a mediocre sound play louder. My local Hifi store lets it customers try in your home before you decide to buy. https://holmaudio.com/
When I added an Emotiva 2 channel preamp with home theater pass through the sound out of my system improved so much I was listening to everything and anything I could. I then tried the Rouge RP5 preamp. It sounded like I spent 5x the money. Also, The phono preamp is way better sounding than the one in my $3500 Denon receiver. The sound stage was huge, the decay was insane and it definitely made the headroom better. Believe me there is music you are not hearing in your recordings. Those dead spaces or gaps are not as long as you think. I then was able to demo the $29,000 Ayre KX-R preamp. All I can say is my system will never sound that good again. pure perfection. It made my $275 AT turntable and my $149 Schitt Mani phono preamp sound like it was worth $5000. Yes, $5,000. A preamp is everything. If your system sounds week with no headroom, no soundstage,  no decay, you are just going to perfectly amplify that imperfect sound. In fact I would say the preamp is just as important as the speakers in your system. If you don’t believe me go to your local Hifi store or if you are in the Chicagoland area:
https://holmaudio.com/
and borrow a decent preamp just to hear it in your own home. After you listen a little and pick up your mouth from the floor you can go buy that new preamp so you can hear what your system can really do.