Best preamp is no preamp: always true?


There seems to be a school of thought that between two well-designed (read no major flaws) CDP and AMP, the best PREAMP is NO PREAMP at all (let's assume that the AMP has a sort of minimalist volume control).

Is this a solid and robust statement? What would be situations where this is not true (still no major design flaws)?
newerphile1cf0

Showing 4 responses by grannyring

I have tried the following passive devices and CD players with analog volume controls;

Muse Thalia CD/DVD with all recent upgrades
Resolution Audio Opus 21 CD
Audio Aero Capitole MKII Sig version
Audio Aero Prima MKII
Placette RVC
EVS Attenuators
Quad CDP 99
Cary - various
CJ CD player - forget the model#
Gamut with active and passive stages
Berning ZH270 with no pre - has volume

I so wanted to go preampless and save money. I love simplicity also. Some of the above, in fact most, sounded good even great, direct into my various tube and SS amps. In fact,I have gone preless for weeks/months at a time.

My experience in every instance, yes every one, is a good preamp improved the sound in various ways. Here are my specific examples.

1) Muse Thalia direct into Mcalister Audio tube amp and March A400s SS amp VS Bel Canto Pre6

The pre 6 gave much improved bass on both amps. Much more dynamic and firm. The highs were more detailed with improved imaging. A more balanced sound. Transparancy actually improved.

The Muse has an excellent analog volume as an FYI.

Now at first the Muse direct seemed preferabe, but after 10 days of going back and forth the above become obvious.

2) AA Capitole direct into a CJ MV60 tube amp and Mcintosh MC402 SS amp VS Aesthetix Calypso pre

Well, the direct route was very good on both counts. This is a great player - no doubt. However, when I introduced the Calypso I was astounded by the improvement. As an FYI this is a great combo! The mids and highs were more intimate and "in the room". Again, the bass firmed up and went deeper. Things simply sounded more right and alive - less smooooooothed out if you will.

3)RA Opus 21 direct into Blue Circle and JC1 monoblock SS amps and Bruce Moore Dual 70 tube amp VS CJ LS 16 pre

The CJ simply gave more meat and foundation to the music. Without it the music sounded thinner and more threadbare. Now the sound direct was very good. If I did not have the CJ on hand to compare, then I would have been very satified with the sound. Having the CJ spoiled the works!

I won't bore you with more comparisions, but will share this. The BV Audio P10 pre also improved the sound vs. the Placette RVC. Again, bigger stage, deeper bass and improved detail and LIFE to the music.I found the EVS attenuators very, very thin sounding on several amps compared to several preamps including the Tom Evans Vibe.

I have done other comparisons and never has preless been as good.The Berning ZH270 amp became fuller sounding with improved dynamics and body with a Joule LA100 MKIII preamp.

I sell gear for folks and have been blessed to have many of the finest pieces of gear in my house to "play" with. I only listen to CD's and have longed to dump a pre and save money. My experience has shown me it can't happen for me, at least with all of the combo's in my treated listening room.

A good pre just gives music more body, soul, weight and life. I am sure I will get to try other gear and look forward to be proven wrong and save money.I am open and willing :-)

Bill


Great question and I don't have the answer. I simply report my experiences as I am not a tech dude or electronics expert. Perhaps others can help. All I know is with all of the various pieces of gear and combinaions of gear my music was improved with a pre. I am sure different reasons for several of the gear match-ups. Perhaps not. Sorry as I do not know why. It just is. Ha!
Kalan you are right. I posted above and tried the passive and no preamp thing. A good active preamp always sounded better. It may be possible that in a certain set-up no pre or a passive pre is better, but I HAVE NEVER HEARD IT COME OUT THAT WAY.
I tried with many different combo's of gear and the active pre always won out pretty easily. I personally think those who find a passive or no pre to sound better like a "certain" type of sound. That type of sound is a little on the lean side. To some this sounds more detailed and transparent. I think one perceives this and is tricked by the overall leaness of the presentation. Bottom line, the preless or passive camp just likes it more and that is cool!
Wish I did as I could save money without a pre.

Bill
You may not need it functionally, but my ears say you need it for the best sound performance.