@bigkidz Yes, it would be better to say "I've heard many class D amps". I liked class D from the beginning and in 2008 posted a list of class D makers (today likely much longer). There are over 50 companies on this list and most of them make more than one model:
Acoustic Reality http://www.acoustic-reality.com/
eAR202, etc (ICEPower)
Aivin http://www.aivin.com.cn/
DT300 (http://www.aivin.com.cn/files/english/products/proweb/DT300.htm) (Tripath)
Analog Research Technology http://www.analogresearch-technology.com/
AudioArt (NL) http://www.audioart.nl/
Van Medevoort MA240 (Hypex UcD)
Audiodigit http://www.audiodigit.com/
MC 8x100 (Tripath)
AudioResearch http://www.audioresearch.com/
150.2, 300.2, 150M (Tripath)
AV123 http://www.av123.com/
X-Empower, xAmp (prelaunch (http://av123forum.com/showthread.php?threadid=10683))
(Philips class-D?)
B&O http://www.icepower.bang-olufsen.com/sw1067.asp
(ICEPower)
BelCanto http://www.belcantodesign.com/products.html
Evo (Tripath) eOne (ICEPower)
Bertram http://www.audiokabel.dk/eng-main.htm
(ICEPower)
Carver http://www.carverusa.com/
300.2, 700.2, 1200.2
Cary Audio http://www.caryaudio.com/
A 306 power amplifier (http://www.caryaudio.com/products/designer/a306.html)
Channel Islands Audio http://www.ciaudio.com/
D100, D200 (Hypex UcD)
Chapter Audio http://www.chapteraudio.co.uk/
Couplet Power Amp (proprietary WMP class-D)
D-Sonic http://www.d-sonic.net/
Magnum (http://www.d-sonic.net/) (ICEPower)
DIYCable http://www.diycable.com/
Exodus (http://www.diycable.com/main/default.php?cPath=140) (Hypex UcD)
Egosys http://www.egosys.co.jp/
Audiotrak DrAMP (http://www.audiotrak.net/drAMP.htm) (Tripath)
Elan http://www.elanhomesystems.com/
D1200, D1600 (12 and 16 channel power amps, Tripath)
Electronic Visionary Systems http://www.tweakaudio.com/
EVS-2 (http://www.tweakaudio.com/EVS-2/Amp_page.html) (ICEPower)
Flying Mole http://www.flyingmoleelectronics.com/
(proprietary class-D)
Gilmore Audio http://www.glacieraudio.com/
Raven, Raptor, Dragonfly (http://www.glacieraudio.com/new%20Glacier%20Audio%20Site/Products%20folder/Gilmore/Gilmore-amps.htm) m/ch (looks like ICE)
Halcro http://www.halcro.com/logic/home.asp
Lyrus
H2O Audio http://www.iceh2oaudio.com/
M250, M500 (ICEpower)
Integra /Onkyo http://www.integrahometheater.com/
DTA 9.4 (http://www.integrahometheater.com/model.cfm?class=Separates&m=DTA-9.4&p=i) 7x120W 8Ω
Jeff Rowland http://www.jeffrowland.com/
(ICEPower)
Jjaz Audio http://www.jjaz.dk/
(ICEPower)
Kharma http://www.kharma.com/
MP150 (http://www.kharma.com/frame.htm?products/matrix/mp150.htm)
LC Audio http://www.lcaudio.com/
Predator SE (http://www.lcaudio.com/index.php?page=37) (ZapPulse)
Marantz http://www.marantz.jp
Opsodis ES-150 (http://www.marantz.jp/ce/products/hometheater/opsodis/es150/index.html) (D2Audio) 2ch virtual surround
Medius [DK] http://www.medius.cc/
A II, A III (http://www.medius.cc/index2.asp?target=products&subtarget=amplifiers&view=amplifiers)
MG Audiolabs http://www.mglaudiolabs.com/
Symphony (http://www.mglaudiolabs.com/products/symphony.htm) (Hypex UcD)
Midgard Audio http://www.midgardaudio.no/www/
(ICEPower)
MindCraft (NL) http://www.mindcraft.nl/
Media Amp One (http://www.mindcraft.nl/mediaampone.htm) (Hypex UcD)
Murano-Audio (TW) http://www.murano-audio.com/
P500, P1000 (ICEPower)
NHT http://nhthifi.com/
Power2 (http://nhthifi.com/2006/products/s/power2.html), Power5 (http://nhthifi.com/2006/products/s/power5.html) (ICEpower)
Nuforce http://www.nuforce.com/
Ref 8, Ref 8b, Ref 9 (nPhysics proprietary class-D)
NuVo Technologies http://www.nuvotechnologies.com/
NV-P2100 (http://www.nuvotechnologies.com/prozone/nv_p2100.htm)
Onkyo http://www.onkyo.com/
A-1VL, A-9755, A-9555 (http://www.eu.onkyo.com/indices/index_com_en_53538.html) (?)
PSAudio http://www.psaudio.com/
GCA, GCMC (ICEPower)
Red Dragon Audio http://www.reddragonaudio.com/
(ICEpower)
RedWineAudio http://www.redwineaudio.com/
Clari-T, Lotus (Tripath)
Rotel http://www.rotel.com/
1077 (7x100), 1092 (2x500) (ICEPower)
Sharp http://www.sharpusa.com/
SM-SX1, SM-SX100
Sonneteer http://freespace.virgin.net/sonneteer.audio/bronte.html
Brontë (Tripath)
Sony http://www.sony.com/
TA-DA9000ES, TA-FA1200ES (http://www.stoneaudio.co.uk/stoneaudio/products/details.asp?product=2439) (S-Master)
Spectron http://www.spectronav.com/
Musician, Troubador (int amp w digital inputs)
TactAudio/Lyngford http://www.tactaudio.dk/ http://www.lyngford.com/
Millennium & others (Equibit)
TEAC Esoteric http://teac.co.jp/av/esoteric/
AZ-1 pre-main (translated (http://babel.altavista.com/babelfish/trurl_pagecontent?lp=ja_en&trurl=http%3a%2f%2fwww.teac.co.j...)
ThetaDigital http://www.thetadigital.com/
Virtu PowerDAC (http://www.thetadigital.com/press-release/virtu-09-06.htm) (Zetex class-Z)
UniwaveTek http://www.uniwavetek.com/
Anaco II
Yamaha http://www.yamaha.com/
MX-D1
Acoustic Reality http://www.acoustic-reality.com/
eAR202, etc (ICEPower)
Aivin http://www.aivin.com.cn/
DT300 (http://www.aivin.com.cn/files/english/products/proweb/DT300.htm) (Tripath)
Analog Research Technology http://www.analogresearch-technology.com/
AudioArt (NL) http://www.audioart.nl/
Van Medevoort MA240 (Hypex UcD)
Audiodigit http://www.audiodigit.com/
MC 8x100 (Tripath)
AudioResearch http://www.audioresearch.com/
150.2, 300.2, 150M (Tripath)
AV123 http://www.av123.com/
X-Empower, xAmp (prelaunch (http://av123forum.com/showthread.php?threadid=10683))
(Philips class-D?)
B&O http://www.icepower.bang-olufsen.com/sw1067.asp
(ICEPower)
BelCanto http://www.belcantodesign.com/products.html
Evo (Tripath) eOne (ICEPower)
Bertram http://www.audiokabel.dk/eng-main.htm
(ICEPower)
Carver http://www.carverusa.com/
300.2, 700.2, 1200.2
Cary Audio http://www.caryaudio.com/
A 306 power amplifier (http://www.caryaudio.com/products/designer/a306.html)
Channel Islands Audio http://www.ciaudio.com/
D100, D200 (Hypex UcD)
Chapter Audio http://www.chapteraudio.co.uk/
Couplet Power Amp (proprietary WMP class-D)
D-Sonic http://www.d-sonic.net/
Magnum (http://www.d-sonic.net/) (ICEPower)
DIYCable http://www.diycable.com/
Exodus (http://www.diycable.com/main/default.php?cPath=140) (Hypex UcD)
Egosys http://www.egosys.co.jp/
Audiotrak DrAMP (http://www.audiotrak.net/drAMP.htm) (Tripath)
Elan http://www.elanhomesystems.com/
D1200, D1600 (12 and 16 channel power amps, Tripath)
Electronic Visionary Systems http://www.tweakaudio.com/
EVS-2 (http://www.tweakaudio.com/EVS-2/Amp_page.html) (ICEPower)
Flying Mole http://www.flyingmoleelectronics.com/
(proprietary class-D)
Gilmore Audio http://www.glacieraudio.com/
Raven, Raptor, Dragonfly (http://www.glacieraudio.com/new%20Glacier%20Audio%20Site/Products%20folder/Gilmore/Gilmore-amps.htm) m/ch (looks like ICE)
Halcro http://www.halcro.com/logic/home.asp
Lyrus
H2O Audio http://www.iceh2oaudio.com/
M250, M500 (ICEpower)
Integra /Onkyo http://www.integrahometheater.com/
DTA 9.4 (http://www.integrahometheater.com/model.cfm?class=Separates&m=DTA-9.4&p=i) 7x120W 8Ω
Jeff Rowland http://www.jeffrowland.com/
(ICEPower)
Jjaz Audio http://www.jjaz.dk/
(ICEPower)
Kharma http://www.kharma.com/
MP150 (http://www.kharma.com/frame.htm?products/matrix/mp150.htm)
LC Audio http://www.lcaudio.com/
Predator SE (http://www.lcaudio.com/index.php?page=37) (ZapPulse)
Marantz http://www.marantz.jp
Opsodis ES-150 (http://www.marantz.jp/ce/products/hometheater/opsodis/es150/index.html) (D2Audio) 2ch virtual surround
Medius [DK] http://www.medius.cc/
A II, A III (http://www.medius.cc/index2.asp?target=products&subtarget=amplifiers&view=amplifiers)
MG Audiolabs http://www.mglaudiolabs.com/
Symphony (http://www.mglaudiolabs.com/products/symphony.htm) (Hypex UcD)
Midgard Audio http://www.midgardaudio.no/www/
(ICEPower)
MindCraft (NL) http://www.mindcraft.nl/
Media Amp One (http://www.mindcraft.nl/mediaampone.htm) (Hypex UcD)
Murano-Audio (TW) http://www.murano-audio.com/
P500, P1000 (ICEPower)
NHT http://nhthifi.com/
Power2 (http://nhthifi.com/2006/products/s/power2.html), Power5 (http://nhthifi.com/2006/products/s/power5.html) (ICEpower)
Nuforce http://www.nuforce.com/
Ref 8, Ref 8b, Ref 9 (nPhysics proprietary class-D)
NuVo Technologies http://www.nuvotechnologies.com/
NV-P2100 (http://www.nuvotechnologies.com/prozone/nv_p2100.htm)
Onkyo http://www.onkyo.com/
A-1VL, A-9755, A-9555 (http://www.eu.onkyo.com/indices/index_com_en_53538.html) (?)
PSAudio http://www.psaudio.com/
GCA, GCMC (ICEPower)
Red Dragon Audio http://www.reddragonaudio.com/
(ICEpower)
RedWineAudio http://www.redwineaudio.com/
Clari-T, Lotus (Tripath)
Rotel http://www.rotel.com/
1077 (7x100), 1092 (2x500) (ICEPower)
Sharp http://www.sharpusa.com/
SM-SX1, SM-SX100
Sonneteer http://freespace.virgin.net/sonneteer.audio/bronte.html
Brontë (Tripath)
Sony http://www.sony.com/
TA-DA9000ES, TA-FA1200ES (http://www.stoneaudio.co.uk/stoneaudio/products/details.asp?product=2439) (S-Master)
Spectron http://www.spectronav.com/
Musician, Troubador (int amp w digital inputs)
TactAudio/Lyngford http://www.tactaudio.dk/ http://www.lyngford.com/
Millennium & others (Equibit)
TEAC Esoteric http://teac.co.jp/av/esoteric/
AZ-1 pre-main (translated (http://babel.altavista.com/babelfish/trurl_pagecontent?lp=ja_en&trurl=http%3a%2f%2fwww.teac.co.j...)
ThetaDigital http://www.thetadigital.com/
Virtu PowerDAC (http://www.thetadigital.com/press-release/virtu-09-06.htm) (Zetex class-Z)
UniwaveTek http://www.uniwavetek.com/
Anaco II
Yamaha http://www.yamaha.com/
MX-D1