NAD C300
Pure Class-A Amp under $2000 (USED)
Hello everyone,
There are so many brands out there that I couldn't catch up with, so I opened a thread about Class-A Amp for discussion. My budget is around $2000 for a Stereo Amplifier (No need for Pre), could you guys help me to suggest me some?
- DAC: Exogal Comet
- Pre/Amp: Yamaha Intergrated A-9 (My current, but want to update)
- Speaker: Sonus Faber Venere 2.0
- Cable: Acrolink (Power, Interconnect, Speaker)
=> I think the wattage range between 30-60WPC for Class-A is powerful and popular. The production date of amplifier should not too old, I think after 199x is nice.
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- 58 posts total
If you want pure class A and high power you need a push/pull amp. While very rich class A no push/pull amp stays class A into all impedances at high power. Only a single ended amp(which can only be class A due to circuit topology) is ALWAYS class A and they are almost all low power. Then again an amp that is say class A up to 30 watts is almost never out of class A and if it is it's for mili seconds mainly> For instance the 30 watt calss A Pass amps are 30 watts class A to 30 watts but then become class B up to around 75 watts(why he calls them 30 watt class A amps. If I recall correctly(someone may know better) if a push pull amp is class A at 8 ohms at a given power it stays class A only at lower power into lower impedances. |
@darkknight8586 I believe Krell KSA 150 and 250 operate in Class A and deliver plenty of power. There are some other Krell models such as sustained plateau biased models also operate in pure Class A. There is one KSA 150 available for $2,500 if you are interested. KSA 150 burn 300W when at idle! Class A efficiency is very low around 10-15% tops. For this reason, I purchased little brother in this series KST 100, but Class AB biased. Imaging, depth, spacing around instruments are outstanding.
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- 58 posts total