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Which pre built Purifi Amp sould I buy?

mSpot

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If I see that correctly, they also use only the EVAL boards and have not integrated the circuit in their own PCB design or customized, the way T+A do it, so that you can also switch the damping factor, ....
But the T+A is more than 4x the price of VTV EVAL-1 ($4900 vs $1089 in the US).
 

pogo

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In Germany 3400€, 3x the price;)
However, the devices are already very different, because among other things, a special PSU is also used.
 

Rottmannash

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In Germany 3400€, 3x the price;)
However, the devices are already very different, because among other things, a special PSU is also used.
Which is not needed. Measurements show the original Eval 1 board and PS deliver excellent performance. AFAIK no other configuration has produced better measured results.
 

pogo

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Measurement values are one thing, but the right match for the used loudspeakers is another.
Going back to the initial questions, the T+A will sound different than the other Purifis, because of the switchable DF, ...
 

pogo

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And because a story always has an end, here is the second part: Link
 

Toblerone

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The trigger is used for turning the amp on and off via a 12VDC connection. The rear panels in these photos show with and without the 12VDC trigger connections.
DO01030093-scaled.jpg

preview_DL01020636.jpg
In that 1st pic what are those holes above “output?”
 

Dhopewell

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I have an Element X for DAC/preamp and 2 Appolon NC1200 monoblocks with Speakons and utterly transparent Benchmark cables. Im done with the electronics until I get bored or this thread heats up again and I find out I did something wrong - like describe cables as utterly transparent instead of appropriate and intact. :)
 

Chris1965

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To be honest. I often read the measurements and they sometimes condition my purchases or not ...
But the ear is not as precise as the measuring instruments and it is sometimes very difficult to perceive a noticeable difference between these two amps. They are very analytical and I have the feeling that they sometimes lack musicality and a "little soul."

I own several amps, including the Purifi, Hypex Ncore, Dual Merus, High end TPA3255, Mini Gan and many others
I continue to say that the amp that brings me the most emotion at the moment is the Satisfaction A2 with the OPA1622 on the preamp section and OPA1656 on the power amp section. This amp is based on a dual Tripath chip but with a neat and top design, it is fully balanced, dead silence with a quad motorized volume knob and a solid Linear PSU.
We had a lot of debate on Diyaudio about the exemplary musicality of the Tripath when they are well implemented, and for me they have the best of class D with the musicality of class A amps. That's my personal opinion however ....

I would say that your choice must be based on measurements for sure but also your auditory appreciation)
IS OPA1622 on the preamp section and OPA1656 on the power amp section still your current combination? On diyAudio you where talking of "With the OPA2210, it is a jewel ! Great soundstage, very detailed and so "warm." Thinking of tweaking mine....
 

daniboun

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IS OPA1622 on the preamp section and OPA1656 on the power amp section still your current combination? On diyAudio you where talking of "With the OPA2210, it is a jewel ! Great soundstage, very detailed and so "warm." Thinking of tweaking mine....

I sold all my Purifi amps but I can confirm you that the OPA2210 is an awesome OP amps. I am also using it with my dual Tripath amplifier, same opinion ! Probably my favorite OP amps
 

Chris1965

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Your Satisfaction A2. That's what I'm acually reffering to. Previously you where talking about the OPA 1622 / 1656 combination. I just acquired it and thinking of tweaking it. Any suggestions would be great. Best, Chris
 
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