A 45 Stereoplay 03 07

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Test & Technik I Endverstärker

120

stereoplay 3/2007

www.stereoplay.de

ccuphase: Dieser Name flößt
Respekt ein. Weil er für Modellkonstanz, Langlebigkeit sowie stets wiedererkennbaren sehr guten
Klang steht. Doch es wird gern
übersehen, dass in Japan innovative
Entwickler sitzen, die es meisterlich verstehen, neue Ideen mit klassischbewährten Schaltungen zu verbinden. Ein Beispiel ist die ausgefeilte
Class-A-Technik des Endverstärker
A 45 für 7700 Euro.
Diese Betriebsart, bei der ständig ein hoher Ruhestrom fließt und die
Transistoren stets in einem günsti-

A

gen Arbeitsbereich bleiben, hat den
Vorteil, dass von Natur aus viel weniger Verzerrungen anfallen, die andere Verstärkerarten mit dem rigiden Mittel Gegenkopplung korrigieren müssen. Der Nachteil von
Class A: Der permante hohe Energieumschlag und die Wärmeentwicklung, die  bei vergleichbarer
Ausgangsleistung  einen wesentlich solideren Aufbau verlangen.
Dieser ist bei einem Accuphase allerdings eine Selbstverständlichkeit, sodass uns eher interessiert,
was die Entwickler sich an

»

SANFTER
RIESE
Wenn Accuphase einen neuen Endverstärker bringt,
horcht die High-End-Welt auf. Den majestätischen
Class-A-Boliden A 45 hörte stereoplay zuerst.
Test: Dalibor Beric, Fotos: Julian Bauer

www.stereoplay.de

stereoplay 3/2007

121

Test & Technik I Endverstärker

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Full review in image hifi magazine (Germany), Issue 2/2009 Accuphase Stereo Phono Amplifier C-27 by Dirk Sommer [Editor in Chief] Which dedicated follower of analogue music reproduction would have ever dreamed of this 20 years ago? The Japanese noble maker Accuphase is for the first time presenting a separate, extremely elaborate phono/equalizerpreamplifier. It was in the end of the year 2001, during the celebrations for the 25th anniversary of P.I.A. [the Accuphase distributor in Germany], in...

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m Revolutionary AAVA-II volume control m Parallel push-pull output stage with high-power transistors delivers plenty of quality power m Instrumentation amplifier principle enhances current feedback and MCS+ topology in power amplifier section m Logiccontrol relays for straight and short signal paths m Robust power supply with large toroidal transformer and high filtering capacity High-class integrated amplifier with 180 watts per channel (8 ohms)  Innovative AAVA-II volume control opens up new...

C 2410 E
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Stereo T 1000 Mar 2007e
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