2018-

Hi-Fi+ August 2019 - "The Sugden Masterclass ANV-50 is, by any standards, a remarkable achievement. As a spiritual, if not literal successor to the pioneering A21, the amp that made Sugden's name, it has some big shoes to fill.  On this experience, it does so magnificently...  its' going to be quite a challenge to find anything at the price that will give you anything like the musical satisfaction and sheer joy this amplifier delivers."

2015-

Audiophile Recommended Award "Evokes a sense of pride in the ownership of it" - Videophile (Thailand) - Jan-17

2015-

2014-

2013-

***** "Outstanding - amongst the best."

Verdict: "Sweet-sounding, truly musical Class A amplifier that is a joy to listen to"

Hi-Fi World - Apr-15

"The New Crown Jewels" - Ecoutez Voir - Feb-15

2015-

"The New Crown Jewels" - Ecoutez Voir - Feb-15

2013-2017

"A striker with rhythym and punch. With its bass power an accurate timings its definitely something for listeners who place value on detail and utmost precision" - Audiophile - Dec-13

2011-

2011-2019

LA-4 / FPA-4 Combination ***** Verdict: "A winning combination from Sugden. Clarity, speed and hear-through sound mark it out from the herd.  Match it with the right speakers and you'd be hard-pressed to find anything better." - Hi-Fi World  - May-14

2011-2017

2011-2013

Mystro Integrated & CD Player "The Mystro has an untroubled naturalness, a real sense of immediacy and presence, the sort of elan you expect to carry a much higher ticket price."  "Unless you are spending several multiples of the amplifiers price, you would be hard-pressed to find anything with the same mix of genuinely high-end qualities." - Hi-Fi+ - Sep-09

2010-

"the HA-4 pushes the recorded performance well beyond either side of your ears, and immerses you..." Hi-Fi World - Jul10

2008-2011

**** "Lively and highly convincing music-making that keeps feet tapping and hearts pounding." "... a thoroughly captivating experience." - Hi-Fi Choice - Feb-11

World Awards - Integrated "All in all, Sugdens Mystro is a most aptly named new contender in the mid-price integrated amplifier category." - Hi-Fi World - World Awards - Jan-10

***** "Verdict: Dizzyingly fast and musical sound allied to breathtaking detail and decent power make this Sugden's best value integrated amplifier ever. 

For: Rhythmic & dynamic fluency.  Big hearted musicality.  Pleasing tonality.  Build & finish.

Against: Nothing at the price." - Hi-Fi World - Nov-09

Mystro Integrated & CD Player "The Mystro has an untroubled naturalness, a real sense of immediacy and presence, the sort of elan you expect to carry a much higher ticket price."  "Unless you are spending several multiples of the amplifiers price, you would be hard-pressed to find anything with the same mix of genuinely high-end qualities." - Hi-Fi+ - Sep-09

2009-2018

"The mid-range is where the LS21 excels: tonally, dynamically, and musically." - Finland - Sep-10

2006-

2006-

2006-

2006-

LA-4 / FPA-4 Combination ***** Verdict: "A winning combination from Sugden. Clarity, speed and hear-through sound mark it out from the herd.  Match it with the right speakers and you'd be hard-pressed to find anything better." - Hi-Fi World  - Ma-14

2006-

"I'm delighted, not to say addicted, to the musicality of this chunky hunk of a transistor." "Class A sounds like that, does it? Is this the much-lauded lack of distortion this operating mode is famous for? If it is, count me in as a fan. I want more!" "This integrated amplifier is able to match up to the industry's big hitters. And then some. I am extremely impressed." - Fidelity International - No.5 2017

​

***** "Verdict: Dizzyingly fast, musical sound allied to breathtaking detail and a useful amount of power make this Sugdens best ever integrated amplifier - pure class."  "Rarely have I heard an integrated amplifier that dives into any given piece of music, throws out so much detail and yet strings it together in such a musically satisfying way."  "the overall verdict is one of wide-eyed admiration for a glorious integrated amplifier." - Hi-Fi World - Dec-07

2006-

2006-

2005-2010

"BEST BUY - 87% - Conclusion: The CD21SE is designed to partner the A21SE Class A amp and it does indeed sound superb in that company, but it also delivers its particularly musical touch in less sympathetic surroundings and warrants the attention of all true music lovers." - Hi-Fi Choice - Sep-05 

2004-2015

​​"The Sugden A21SE amplifier is a real beauty.  I am almost shocked at how good it is - and it uses transistors!  It has the most fabulously detailed sound, one that is dynamic, full of vivacious life and enormously engaging as a result. I continue to use our review sample and am quietly addicted to it for reviewing purposes, because it makes the most of loudspeakers, due to its sweet tonality." - Noel Keywood - Hi-Fi World - Dec-12

Verdict: *****
"if you want to hear how transistor amplifiers should sound - and I wish they would sound! - then this is the one.  It is an utterly superb amplifier that is exciting to listen to with both Rock and Classical music, as any good amplifier should be.""

"The A21SE is deperately fast, but sweet and clear to an extent that is unmatched by other transistor amplifiers.  It was said before - an quite rightly - that this is one of the world's best amplifiers and I am happy to repeat the point." - Hi-Fi World - Sep-12

"Should you favour realism, body, musical flow and rich mids - i.e. fatigue-free purity and black backgrounds - this amp is among the best i've yet encountered.  I'm certain in fact that many a diehard valve fiend would go wild over this semi-conductor machine." "I was quite blown away by the results" - FairAudio.de - Feb-08

Translation "just impress in every way" - LP - Apr-08

Hi-Fi World - World Awards - Integrated Amplfiier: Sugden A21SE "the Sugden sang like no others can.  It's a truly unique sound; bright and crisp and open like no other integrateds, yet it plays music like its life depended on it.  There's something about it that makes you want to unplug your TV, pull your phone out of the socket power down your computer and run a gamut of your record or CD collections until the early hours  It makes you want to forget yourself and all the grim practicalities of life, and just 'go off on one' and get lost in music." "this is argualbly the ultimate audiophone integrated amplifier." - Hi-Fi World - Jan-06

"The coherent sound is why it deserves to be included among the high-end's great and good." - Hi-Fi Choice - Summer-06

***** "Verdict: Brilliantly music hear-through sound makes this one of the best transistor amplifiers ever made..."  "Musically brilliant is the best way I can describe it... do yourself a favour and hear something that has nearly all of the strengths of tube amplifiers and almost non of the vices.  Gorgeous." - Hi-Fi World - May05

"90% Verdict: Sugden has managed to upgrade the A21 wihtout losing any of its magic.  Although it may still lack ray power and doesn't follow the rhythm method, if you want to lose yourself in unforced, uncoloured music, put this at the top of the list."  FP: "In-depth Test: Class A audio brilliance from Sugdens super A21SE integrated stereo amplifier." - Hi-Fi Choice - Jul-05

2007-2014

"The 10 Most Significant Amps In European History" - "Perhaps part of the reason for Sugden's continued success is its beguiling sound, warm and comforting." - Hi-Fi+ - Issue 82

***** "Verdict: Sumptuous sounding amplifier with an open and inviting nature allied to an innate musicality that makes listening a pleasure."  "The boys from Heckmondwike have done it again!" - Hi-Fi Wolrd - Dec-07

***** "Verdict: Class A without tears, this new incarnation adds power and control to the A21a's traditional transparency and musical ease.  Gorgeous." "the A21a S2 is a joy with almost any type of music" - Hi-Fi World - Aug-07

2004-2010

2003-2007

2002-2006

"The Masterclass simply peeled away the sound of electronics, presenting a vast soundstage and an effortless musical performance... this amp's line stage is incredibly revealing." - Hi-Fi News - Mar-04

2002-2005

2002-2005

"In a world of compromised hi-fi systems, this Sugden Master is truly a revelation." - What Hi-Fi - Awards 2002

2001-2007

***** "This CD player, despite the hefty price tag, is genuinely competitive; in hi-end terms its good value for money.  Any thought of how good it is soon shifts to how good the music is, and that's the biggest compliment that can be paid to any CD player." - What Hi-Fi - Buyers Annual 2003 Ultimate Guide

"Sometimes products just click.  Its that old black magic called synergy and this beefy bundle of Brit-fi has enough of the stuff to power a small town." - Hi-Fi Choice - Sep-02

2006-2011

***** " This CD player, despite the hefty price tag, is genuinely competitive; in hi-end terms its good value for money.  Any thought of how good it is soon shifts to how good the music is, and that's the biggest compliment that can be paid to any CD player." - What Hi-Fi - Buyers Annual 2003 Ultimate Guide

2000-2009

Bijou Pre/Power Amplifier - "**** Verdict: Wonderfully crisp, spry, detailed and musical sound will win it many friends."  "I lkoved this combo - its genuinely charismatic, quirky and most importantly - capable.  Theres little around that does what it does so well at the price." - Hi-Fi World - Jan-04

"The Sugden pre/power combination is a hi-fi jewel" - What Hi-Fi - Buyers Annual 2003 Ultimate Guide

Best Buy: Over £1000 - "This stack of components has changed the way we look at style systems."  "the Sugden system wins yet another Best Buy." - What Hi-Fi - Awards 2003

"In a world of compromised hi-fi systems, this Sugden Master is truly a revelation." - What Hi-Fi - Awards 2002

"For: A cute and compact system that majors on stereo imaging.  Against: Nothing." - What Hi-Fi - Ultimate Hi-Fi & HOme Cinema Guide

***** "The Sugden has it all: looks, build and sonic talen.  it can face any challenger at its price point without fear." - What Hi-Fi - May-02

***** "Winner £2000+ "..its the margin of superiority that puts it on the podium.  It has a combination of talents that just kept us listening hour after hour." - What Hi-Fi - Jan-02

***** "For: Transparency; dynamics and subtlety; excellent build and finish.  Against: Nothing at all.  Verdict: a great niche product that sounds simply brilliant.  We can't wait to hear the rest of Sugdens' Master range." - What Hi-Fi - 2001

"Each of these components deserves high praise in its own right.  When used together they have an obvious rapport, creating a first-rate system, which will have its owners rediscovering neglected corners of the CD collection long into the night." - Hi-Fi News - 2001

"Smooth, silky, and capable of tingling the spine, time after time, the Sugden is very special indeed." - Gramaphone - Awards 2001

2000-2008

Bijou CD / Pre / Power - "The CDMaster has a distinctive character - a lovely liquidity, a generous , full-bodied way with harmonics, a sweet midrange, extended highs." - Stereophile - Aug-04

Best Buy: Over £1000 - "This stack of components has changed the way we look at style systems."  "the Sugden system wins yet another Best Buy." - What Hi-Fi - Awards 2003

"In a world of compromised hi-fi systems, this Sugden Master is truly a revelation." - What Hi-Fi - Awards 2002

"For: A cute and compact system that majors on stereo imaging.  Against: Nothing." - What Hi-Fi - Ultimate Hi-Fi & HOme Cinema Guide

***** "The Sugden has it all: looks, build and sonic talen.  it can face any challenger at its price point without fear." - What Hi-Fi - May-02

***** "Winner £2000+ "..its the margin of superiority that puts it on the podium.  It has a combination of talents that just kept us listening hour after hour." - What Hi-Fi - Jan-02

**** "The stylish and sleek CDMaster is a fine performer that's easily at the top of its class.  Highly recommends." - Hi-Fi Wolrd - 2001

"Each of these components deserves high praise in its own right.  When used together they have an obvious rapport, creating a first-rate system, which will have its owners rediscovering neglected corners of the CD collection long into the night." - Hi-Fi News - 2001

"Smooth, silky, and capable of tingling the spine, time after time, the Sugden is very special indeed." - Gramaphone - Awards 2001

2000-2007

Bijou Pre/Power Amplifier - "**** Verdict: Wonderfully crisp, spry, detailed and musical sound will win it many friends."  "I lkoved this combo - its genuinely charismatic, quirky and most importantly - capable.  Theres little around that does what it does so well at the price." - Hi-Fi World - Jan-04

"The Sugden pre/power combination is a hi-fi jewel" - What Hi-Fi - Buyers Annual 2003 Ultimate Guide

Best Buy: Over £1000 - "This stack of components has changed the way we look at style systems."  "the Sugden system wins yet another Best Buy." - What Hi-Fi - Awards 2003

"In a world of compromised hi-fi systems, this Sugden Master is truly a revelation." - What Hi-Fi - Awards 2002

"For: A cute and compact system that majors on stereo imaging.  Against: Nothing." - What Hi-Fi - Ultimate Hi-Fi & HOme Cinema Guide

***** "The Sugden has it all: looks, build and sonic talen.  it can face any challenger at its price point without fear." - What Hi-Fi - May-02

***** "Winner £2000+ "..its the margin of superiority that puts it on the podium.  It has a combination of talents that just kept us listening hour after hour." - What Hi-Fi - Jan-02

"Each of these components deserves high praise in its own right.  When used together they have an obvious rapport, creating a first-rate system, which will have its owners rediscovering neglected corners of the CD collection long into the night." - Hi-Fi News - 2001

"Smooth, silky, and capable of tingling the spine, time after time, the Sugden is very special indeed." - Gramaphone - Awards 2001

1999-2003

"Complicated tunes are delivered without fluster or muddle, simple ones with pace and conviction." "Simply the most music system here." - Hi-Fi choice - Dec-00

1995-1999

1999-2000

1999-2000

***** "The Masterclass amp is a truly stonking performer that will worry all-comers below £5000.  It produces a solid, controlled performance with plenty of detail, authority and dynamics. " - What Hi-Fi - Ultimate Guides Hi-Fi 2003

Verdict: ***** - What Hi-Fi - Jun-02

"One of the best sounds to be found in solid state audio." - Hi-Fi+ - Jul-02

"Sometimes products just click.  Its that old black magic called synergy and this beefy bundle of Brit-fi has enough of the stuff to power a small town." - Hi-Fi Choice - Sep-02

1998-2006

Masterclass AA Pre/Power

Hi-Fi Choice Awards 2003/04 Product of the Year: Amplifieris.

"This pairing is one of the most organic and dynamic transistor amplifiers you can buy - the similarities to good valve amps are uncanny." - Hi-Fi Choice Awards Special 2003

"Editors Choice.  90% - Conclusion: This is a well-built and lovely-sounding pre/power combo that will reveal the best in all the most sensitive speakers.  If you want the best assets of valves and trasnsistors combined, this Sugden duo will be very hard to beat at the price." "If you haven't heard your favourite albums through an amplifier like this, then you haven't heard them." - Hi-Fi Choice - Oct-09

Verdict: ***** - What Hi-Fi - Jun-02

"One of the best sounds to be found in solid state audio." - Hi-Fi+ - Jul-02

"It is almost valve-like in quality, sweet and detailed wihtout a hint of grain or over brightness.  The system suited all types of music which, to me, is the sign of a thoroughbred, no compromise amplification." - Hi-Fi World - 2001

"The finest Sugden amplification, in three boxes - the Masterclass pre-amp and 160W monoblocks." - Hi-Fi News - Mar-00

1998-2006

Masterclass AA Pre/Power

Hi-Fi Choice Awards 2003/04 Product of the Year: Amplifieris.

"This pairing is one of the most organic and dynamic transistor amplifiers you can buy - the similarities to good valve amps are uncanny." - Hi-Fi Choice Awards Special 2003

"Editors Choice.  90% - Conclusion: This is a well-built and lovely-sounding pre/power combo that will reveal the best in all the most sensitive speakers.  If you want the best assets of valves and trasnsistors combined, this Sugden duo will be very hard to beat at the price." "If you haven't heard your favourite albums through an amplifier like this, then you haven't heard them." - Hi-Fi Choice - Oct-09

"It is almost valve-like in quality, sweet and detailed wihtout a hint of grain or over brightness.  The system suited all types of music which, to me, is the sign of a thoroughbred, no compromise amplification." - Hi-Fi World - 2001

1998-2006

Masterclass AA Pre/Power

Hi-Fi Choice Awards 2003/04 Product of the Year: Amplifieris.

"This pairing is one of the most organic and dynamic transistor amplifiers you can buy - the similarities to good valve amps are uncanny." - Hi-Fi Choice Awards Special 2003

Verdict: ***** - What Hi-Fi - Jun-02

"One of the best sounds to be found in solid state audio." - Hi-Fi+ - Jul-02

"The finest Sugden amplification, in three boxes - the Masterclass pre-amp and 160W monoblocks." - Hi-Fi News - Mar-00

1998-2004

"Equalization on or off, the Sugden Audition system produces a beautiful sound that is a credit to the company's heritage and dedication. "  "This is unquestionable an amplifier of a very high standard indeed." - Gramophone - Jun-99

"Perhaps what startled me first was the way these units sounded so civilised straight from the box..." - Hi-Fi News - Apr-99

1998-2004

1998-2002

"... its good to find something British which stands out from the crowd." - Hi-Fi+ - Au-99

"In a price area that is already congested with black boxes from all quarters of the world, its good to find something British which stands out from the crowd." - Hi-Fi Plus - Jul 1999

1998-2001

1996-2000

1997-1998

1996-2006

1996-2006

1995-1999

"A true sophisticate, it was stylish, beautifully constructed, slick in use with remote control and offered a top quality sound." - Hi-Fi World - Dec-95

1995-1998

1994-2004

"I'm going to nail my colours to the mast.  The Stemfoort SF100 is about the best sounding integrated amplifier I've heard to date.  The few that can challenge its performance have four-figure price-tags.  It has enough grunt to drive all bar the most difficult of speakers, but with the sort of subtlety and grace that will challenge refined single-ended Class A amplifiers.  In all it looks like a star buy." - Hi-Fi Choice - Nov-94

1994-1999

1994-1996

1993-1999

1993-1997

"A true sophisticate, it was stylish, beautifully constructed, slick in use with remote control and offered a top quality sound." - Hi-Fi World - Dec-95

"This thoroughbred may leave you begging for discs with even more information." - Australian Newspaper

1993-1997

1993-1993

1992-1997

1992-1992

1992-1998

1992-1999

"Top grade amplification to depend on and enjoy everyday you use it." - Hi-Fi Wolrd - Oct-96

"Rating: 98% - Cold, out of its packing carton, the Sugden instantly sounds better than great." - Inner Ear - 1992

1992-1993

1991-2000

"Rating: 98% - The Au51 combines accuracy and musical performance with great looks and - ultimately - delightful enjoyment." - Inner Ear - 1992

"Top grade amplification to depend on and enjoy everyday you use it." - Hi-Fi Wolrd - Oct-96

1991-1999

"the Sugden SDT-1 looks (and sounds) to me like a really exceptional value among a group of very good digital components." - Audio Ideas - Winter-93

"I have to say Sugden's CD player just has to be near the top of any buyers list." - Hi-Fi World - Mar-93

Rating 96% "Sugden's use of descreet components allows tailoring of the sound structure without compromising dynamics, frequency or sound stage."  "This is an excellent CD player, which comes very close to elaborate and expensive separate components." - Inner Ear - Mar-93

1991-1999

1991-1998

Recommended - "With no knowledge of this DAC's origin our panel concluded that the SDA-1 was 'a top-flight and distinctly multi bit performa with a likely price to match'. Its a star performer all right but the price is far from the realms of high-end fantasty.  Heartily Recommended." - Hi-Fi Choice - Dec-92

"The DAC behaved for me as though it was a pure transcription device, a wide open window for the transport to flow through.  It responds with a real sense of music values." - Hi-Fi World -Jun-92

1990-2000

"delightful to live with - it almost begs you to put on more music and then proceeds to play it with aplomb." - Hi-Fi News - Oct-92

1990-2007

Classic Dilemma - Group Test - ***** "Verdict: Superlative clarity and musicality, this amp is peerless at the price in what it does best, which is to make music."  "an excellent showcase for the technology, and a real credit to the company..."  "Sugden's A21a is a truly polished gem." - Hi-Fi Wolrd - Dec-06

Recommended Components - "What the A21 succeeds marvelously at doing is presenting a crisp, lively, but very continuous and quite nonfatiguing musical experience." - Stereophile - Apr-04

"I've been living with this 25Wpc integrated amp for two months now, and I've derived more pleasure from it than I have from some hugely expsensive separtes." Stereophile - Feb-05

Best Buy "You know instantly you are hearing something close to a real performance." - Hi-Fi Choice - Feb-02

***** "Verdict: The A21a is a terrific product that is good enough to take on the very best at this price." - What Hi-Fi - 2001

"Complicated tunes are delivered without fluster or muddle, simple ones with pace and conviction." "Simply the most music system here." - Hi-Fi choice - Dec-00

"This amplifier is the magic, affordable ticket to enter in the high-end industry." - Nxos - 1999

"They'll never should about the A21a, any more than they boasted about their own pioneering efforts in making Class-A technology available to the masses.  And this is behaviour which makes teh Sugden A21a amplifier the best-kept secret in British hi-fi. Bar none." - HI-Fi News - Jul-98

"Whatever is played through the A21a is invested with flesh, blood and lungs." - Hi-Fi World - Feb-94

"Class A is to amplifiers what V-12 enginers are to automobiles!" - UHF - Oct-90

1990-1995

"Its pleasant, natural sound comes as a welcome break from the perils of hi-fi!" - Hi-Fi World - Apr-92

1990-1995

1990-1995

"This solid little amplifier proved to be one of the most listenable in the test." "Of the two top amplifiers in this group - I marginally preferred the sound of the Sugden."  "the Sugden simply traded some of its rival's detail and pin-sharp imagery for sparkle and life." - Hi-Fi World - Oct-92

"I can't think of why we haven't heard more of it.  Sugdens own slogan is "Hand Crafted - Fait a la Main", I'll suggest another "Search out a Sugden"." - Hi-Fi World - Dec-91

1990-1994

"The LPA-10 is a thoroughbred among amplifiers. Its charms may not come cheap, but you only get what you pay for, and who's to put a price on beautiful music?" - Hi-Fi Choice - Jun-90

1990-1992

1989-2000

"Overall then, the Sugden takes Gold, with a balance of performance, power and price the others cannot match." - Hi-Fi World - Apr-93

1989-2000

"Overall then, the Sugden takes Gold, with a balance of performance, power and price the others cannot match." - Hi-Fi World - Apr-93

1988-1991

1987-194

1986-1993

What's this item about? What makes it interesting? Write a catchy description to grab your audience's attention...

1986-1991

"We've never tested another amplifier which sounded this big and did its job this well." - Hi-Fi Sound No.13

"This is beyond better bass, better treble, better midrange.  This is more music, melodies you can follow better, mor of the feeling that you are attending a live performance.  And it isn't even a suble effect." - Hi-Fi Sound - 1988

1986-1991

"This is beyond better bass, better treble, better midrange.  This is more music, melodies you can follow better, mor of the feeling that you are attending a live performance.  And it isn't even a suble effect." - Hi-Fi Sound - 1988

1986-1991

"If you want Class A performance - or even if you've never really considered it up until now - you owe it to yourself to have a listen to the Sugden A48III." - Australian Hi-Fi - Vol.18 No.11

"To the A48's credit, it delivers the goods, with an essential richness and body that must be heard to be apprecaited.  Highly recommended indeed." - Hi-Fi Heretic - No.10

1985-1990

"It is an amp for serious listening." - Stereo Buyers Guide - Apr-87

"I would reate this amplifier as an exceptional performa in terms of sonic quality." - Gramophone - Dec-82

1985-1990

"This marvellous little amplifier is therefore well endowed to 'play' in th eballpark and to cater to the needs of the same demanding music lovers." - Son Hi-Fi - 1986

"The only thing wrong with the review sample of this remarkable amplifier is that Sugden want it back." - Which Compact Disc? - Oct 85

"A delight to the ear." - Stereo Buyers Guide - Jun-85

"It is clear that Sugden would never fall into the trap of producing an 'average' amplifier merely for reasons of price, but we never expected that they would be able to offer such an attractive product, not only in terms of sound reroduction but of basic design."

1985-1989

"So for those of you with a moving-magnet pickup, we give this one ten out of ten. For an MC pickup, lets split the difference at nine out of ten.  Go for it. Goldfinger!" - Hi-Fi Sound - No.13

"Within the constraints of its price, I believe that this pre amp offers a performance as good as you can get." - Which Compact Disc? - Jun-96

1985-1989

1984-1989

"the C128 is a remarkable performa, well balanced, musical, fuss-free.  The sound quality provided is well above the norm, so this unit represents very good value for money." - Hi-Fi News - Sep-84

1982-1989

1982-1986

"Definitely worth a personal audition." - Hi-Fi For Pleasure

1982-1985

1982-1984

1981-1990

1981-188

1981-1988

"All the technical credentials in the world do not mean a pinch of the proverbial if the tuner doesn't come up with the goods in terms of sound quality and in this area the DT28 was excellent. - Australian Hi-Fi - Buyers Guide '85

1981-1985

1976-1987

T48II/A48II - "the sonic results excellent." -

1976-1985

1976-1983

T48II/A48II - "the sonic results excellent." -

1976-1981

1973-1985

1972-1983

1972-1977

1971-1981

​

1971-1981

1971-1977

1969-1983

1969-1972

1967-1970

1967-1970

I can think of no other vintage transistor integrated that comes close..." Hi-Fi World - Mar-10

1967-1968

1967-1968

1967-1968

1967

1967

This was the first commercially available Pure Class A transistor amplifier.

1967