Buckeye PURIFI EIGENTAKT 1ET9040BA1 monoblocks
$2300/pair sold direct includes free shipping in USA
My take under the heading of Inevitable comparisons:
Kal could hardly discern the sonic differences between the Buckeye PURIFI 1ET9040BA1 monoblocks, NAD M23 Master Series PURIFI stereo amp, and his reference two Benchmark AHB2 stereo amps each bridged for monoblock duty.
He mentioned noticing slight differences in bass or treble between the amps upon A/B switching but those impressions were short lived writing, "However, within minutes, none of those impressions remained apparent; only the characteristics of the music and recording mattered, and I never felt the need to change from one amp to another." Kal still prefers his AHB2 "due mostly to matters of ergonomics and familiarity."
On the tech side:
I read that the Purifi module requires an input board with gain and Buckeye has their own but there was no detail on it. VTV on the other hand makes their own input board that allows the buyer to choose from a variety of op-amps and discrete op-amps.... for a price. Buckeye includes a 12v trigger input. VTV offers it.... for a price.
Worth noting from John Atkinson:
The voltage gain at 1kHz into 8 Ohms was very close to the specified figures, at 25.6dB (High), 20.5dB (Med), and 15.5dB (Low).
Buckeye specs the monoblock input impedance as 51K Ohms. JA measured 8.4K Ohms regardless of gain setting. Why the big discrepancy? I have no idea.
