Would like to upgrade amplifier and would appreciate suggestions.


Hello,
I just upgraded my Zesto Andros 1.2 phonostage to the new Andros Deluxe 2 and very happy with that.
I have the Zesto Leto 1.5 preamp, and will do one of the following:
    Have the power supplies upgraded on the Leto 1.5...this would be the least expensive.
    Trade it in for the new model, Leto Ultra 2
    Or, if need be, sell/replace with best compatible preamp for whatever amp I upgrade too.
Zesto preamp specs:
" 3 pairs transformer-coupled balanced (XLR), input impedance 10k ohms; 3 pairs single-ended (RCA), input impedance 100k ohms. Outputs: 2 pairs transformer-coupled balanced (XLR), output impedance 150 ohms; 2 pair single-ended (RCA), output impedance 150 ohms. Maximum input level: 7V. Maximum peak output level: 10V. Frequency range: 10Hz–40kHz. THD+N: 0.03% with 1V RMS input. S/N ratio: 100dB below operating level. Gain settings: 9dB, 6dB, 3dB"

My present amp, is a pair of QuickSilver V4 mono blocks, these are the newer version built around the KT150 tube and rated @ 170 watts.

My current speakers are Green Mountain Audio Continuum 3...which in a year or so I plan to upgrade those too as, even though they have low hours/like new, they are aged.

I'm thinking that if I buy hi-quality used gear, I will get much more for my $$.
For an amplifier, I would like to keep it under/around $10K and if needing also to spend on a preamp, it should be under/around $8K.

I love tubes, have had nice solid state in the past too... such as an Edge NL12.1 amp.

Looking for the best sound and also some power, so would like around 200 watt output... unless it is an outstanding amp that a little less power is still worthwhile.

Was looking at Audio Research stuff, but not sure if compatible to what I have already... there is so much out there and I have not kept up with the hobby over the past 15 years or so....

Your comments and suggestions are very much appreciated!

Rick



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Showing 2 responses by douglas_schroeder

You are not "doomed" and "limited" to expensive SS amplification that would drive your speakers wonderfully. That was the case as little as 5 years ago, as class A and A/B and tube amps were definitively superior to class D. No longer. In fact, class D is surpassing the others. 

Please read my review of the Legacy Audio i.V4 Ultra Amplifier. IGNORE ignorant people who would rant against its being class D. They have no clue about current developments.  

Has anyone told you that if you switch speakers, you will lose much of the aspects of sound quality that you may adore with your current speakers? The presentation will be fundamentally different. You are not assured to enjoy it more, or even as much. Imo, if you love your current speaker's sound, I would advise looking for an amp suitable, not taking a flier on a different speaker. Only if you are fundamentally dissatisfied would I recommend swapping speakers, or if you have an itch to go an entirely different direction. It's wide open, for sure. But, you will not be keeping the characteristics you currently have if you swap speakers. Be forewarned. You switch genres, and it's a different playing field, for better or worse! 

It is entirely possible to obtain better/preferable sound quality by keeping those speakers and moving to an amp such as I have suggested above. NO ONE can tell you that swapping to a higher efficiency speaker with lower power would be preferable. It is entirely possible that you could switch to a different, purportedly better, speaker and end up less satisfied! Be careful not to simply leap at suggestions that make it appear there is only one way to obtain superior sound. 

I have built hundreds of systems, using speakers of all sorts, and I assure you that in terms of satisfaction/preference, higher efficiency speakers do NOT always win. They often are quite difficult to set up optimally, and can be a PITA to tame. How the system is setup and the skill of the system builder is critical in which is preferred. There are many higher efficiency speakers with inherent limitations and idiosyncrasies that must be accepted, and they do NOT assure satisfaction. You will have no inherent advantage switching to that genre of speaker and amp. 

As can be seen, there are hard core fans of all sorts of speakers, amps, systems, etc. You pick your authority, you get your results.