Putting aside aesthetics, case design / quality, size / weight, warranty - please step forward if you believe any of these 1ET400A based amps have stood out or should stand out as
sonically superior in a blind test and explain
why? (op-amp, psu, wiring, snake oil etc etc.)
Listed in order of price for two channels... (please add to this list).
PURIFI AUDIO EVAL1 KIT* (DKK4,775) £640 + *PSU =
£820
https://purifi-audio.com/vare/eval1/. *PSU required (i.e Hypex SMPS1200A400 = £180)
VTV Purifi 1ET400A Stereo = (US$959) =
£852
https://vtvamplifier.com/product/vtv-amplifier-stereo-purifi-audio-1et400a-amplifier/
NORD THREE 1ET400A ST Stereo Amplifier =
£1,099 ex VAT
https://www.nordacoustics.co.uk/product-page/nord-three-1et400a-stereo-amplifier-1
AUDIOPHONICS LPA-S400ET (€1,349) =
€1,124 ex VAT
https://www.audiophonics.fr/en/powe...eo-amplifier-purifi-2x400w-4-ohm-p-14557.html
NORD THREE 1ET400A Mono Block £625 X 2 =
€1,250 ex VAT
https://www.nordacoustics.co.uk/product-page/nord-three-1et400a-stereo-amplifier
AUDIOPHONICS HPA-S400ET (€1,490) =
€1,241 ex VAT
https://www.audiophonics.fr/en/powe...4393.html?search_query=iet400a&fast_search=fs
APOLLON 1ET400A MINI STEREO AMPLIFIER =
€1,490 ex VAT
https://www.apollonaudio.com/apollon-1et400a-mini-stereo-amplifier/
NORD THREE SE 1ET400A MKII Dual Mono Stereo Amp =
£1,649 ex VAT
https://www.nordacoustics.co.uk/product-page/nord-three-se-1et400a-dual-mono-stereo-amp
NORD THREE SE 1ET400 MKII Mono Block Single (£850) X 2 =
€1,700 ex VAT
https://www.nordacoustics.co.uk/product-page/nord-three-se-1et400-mkii-mono-block-single
APOLLON PURIFI 1ET400A BASED STEREO AMPLIFIER
€2,280 ex VAT
https://www.apollonaudio.com/apollon-audio-purifi-1et400a-stereo-amplifier-input-buffer-board/
MARCH AUDIO P451 Mono Block Power Amplifier (US$1,295) €1,150 x 2 =
€2,300
https://www.marchaudio.net.au/product-page/p451-mono-block-power-amplifier
ROUGE Alauda MB5 @ €1,155.00 x 2 =
€2,310 ex VAT
https://en.rougeaudiodesign.com/product-page/alauda-mb-5
APOLLON PURIFI 1ET400A BASED MONO BLOCK AMPLIFIER = €1,190 X 2 =
€2,380 ex VAT
https://www.apollonaudio.com/purifi-1et400a-apollon-audio-monoblock/
VERA AUDIO P150/600 RS AMPLIFIER (29 600 NOK) =
€ 2733 ex VAT
https://www.vera-audio.com/newsarticle.php?news_id=3
ATM AUDIO EPM3P Mono €1,400 x 2 =
€2,800 ex VAT
https://atm-audio.com/product/epm3p/
NAD M33 =
€3,999
https://nadelectronics.com/m33/
ATM AUDIO EPM-450 STEREO =
€5,695 ex VAT
https://atm-audio.com/product/epm-450-stereo/
BEL CANTO E1X AMPLIFIER (£5,600) =
€6,240
https://belcantodesign.com/home/e1x/e1x-amplifier/ (1ET400A architecture to be verified)
ATM AUDIO EPM-450 €4,172 X 2 =
€8,344
https://atm-audio.com/product/epm-450-mono/
LKV RESEARCH VEROS PWR+ POWER AMPLIFIER =
€ TBA
https://www.lkvresearch.com/lkv-veros-power-plus.html
NB For a superb 1ET400A evaluation DIY thread:
https://www.audiosciencereview.com/...easurements-of-purifi-1et400a-amplifier.7984/ thanks to
amirm
Related contributions:
INPUT BUFFERS
Nord One Rev D Input Buffer - includes Sparkos Labs SS2590 or Sonic Imagery 990Enh Op Amps =
€274.50 - €297
https://www.nordacoustics.co.uk/product-page/nord-one-rev-d-input-buffer-board
Neurochrome Purifi 1ET400A / Hypex NC500 Input Buffer - mono (US$129) €115 x 2 =
€230
https://neurochrome.com/products/purifi-1et400a-hypex-nc500-input-buffer
VTV Amplifier Custom Input Buffer Hypex NC500 NC1200 NC2K Purifi (US$145) €129 x 2 =
€258
https://vacuumtubevalues.com/product/vtv-amplifier-custom-input-buffer-hypex-nc500-nc1200-nc2k/
ATM Audio 1ET400A input buffer + / - Op-Amp (SIL990, SIL994, Sparko) =
€329 to €819
https://atm-audio.com/product/buffer-hypex-nc500/
ATM Audio 1ET400A input buffer Buffer with Korg Nutube valve =
€1,175
https://atm-audio.com/product/buffer-korg-nutube/
POWER SUPPLIES - SMPS
Hypex SMPS1200A400 =
€179
https://www.audiophonics.fr/en/smps...g-power-supply-module-1200w-2x64v-p-8574.html
Amps that use it - Audiophonics HPA-S400ET & LPA-S400ET, Apollon PURIFI 1ET400A Mono Block, VTV Purifi 1ET400A Stereo,
Hypex SMPS1200A700 =
€179
https://www.audiophonics.fr/en/smps...g-power-supply-module-1200w-2x85v-p-5523.html
Amps that use it - ROUGE Alauda MB5,
OP AMPS
Sonic Imagery Labs Op Amp SIL990 Enh (£61.50) =
€68
https://www.nordacoustics.co.uk/product-page/sonic-imagery-994-op-amps
Sonic Imagery Labs Op Amp SIL994 Enh (£85) =
€95
https://www.nordacoustics.co.uk/product-page/sonic-imagery-994-op-amp
Sparkos Labs SS3602 Op Amp (£70) =
€78
https://www.nordacoustics.co.uk/product-page/sparkos-labs-ss3602-op-amps
Sparkos Labs S2590 Op Amp (£50) =
€56
https://www.nordacoustics.co.uk/product-page/sparkos-labs-ss2590-op-amp