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In the Forum: Playback Listening
In the Thread: My Audio Philosophy
Post Subject: Let me know why Audiopax inject energy to the soundPosted by Amir on: 10/6/2019
first i should say i need more time to judge the Audiopax for some reasons but i try to share the first thing come to my mind after listening to Audiopax.
I should say i use Pure Power 3000+ , I mean i judge Audiopax when it is connected to PurePower.
Audiopax is not like other amplifiers i have ever heard.
I have heard Tenor EAR Ayon Pathos Shanling Raysonic Accuphase Naim Krell Mark Levinson Burmester Vitus Audio Research Conrad Johnson ASR Emitter Air Tight Devialet Mcintosh NAD Denon Roksan Gryphon and ... from 2002 i have heard most of audio systems in tehran and i just only interested by Audio Note/Kondo & Audiopax products.
The pre amplifier Audiopax model 5 is solidstate high voltage FET with output transformer and it has no negative feedback, you can check it's output impedance , it is very high because it does not use NFB and you should connect it to high input impedance power amplifiers (over 200k).
The Power Amplifier Audiopax Model 88 is single ended class A1 pentode tube (it is not hybrid) amplifier with 2 KT88 per channel .The output impedance of model 88 is 3.7 ohm (it is high because it does not use negative feedback) and you should connect model 88 to flat impedance curve loudspeakers (above 6 ohm and less than 40 degrees phase).
I think for average room size you should choose above 96db loudspeakers. I have ordered Audio Note UK AN-E SPe HE 97.5db Sensitivity and i will get it in november.
Like pure power 3000+ the Audiopax inject magical energy to the sound and i do not know why audiopax could do that. this is a new experience to me and it is very very positive.
these are my guests :
1. the energy in sound may come from using soildstate pre with tube power like CEC TL0/Audio Note DAC Combination. in past I have heard hybrid power amplifier but no hybrid power amplifier was good to me. i also have heard EAR solidstate pre 312 with EAR 861 tube power amplifier but 312/861 did not inject any energy to the sound (the EAR were also connected to pure power 3000+).
2. the energy in sound may come from using different PSU design . Silvio told me Audiopax do not use any regulator in PSU.
3. the energy in sound may come from model 5 design (my friend told me it may use X-Factor like Lamm Pre)
it seems Eduardo de Lima was very smart designer.
i do not know why Audiopax inject energy to sound and i ask here if any body could tell me why?
it is 2 weeks that i think about this question and i hope i could find the answer.
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