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Fully Restored Krell KSA-150 Class-A Amplifier for Sale in Near-Mint Condition

This is a once in a lifetime opportunity to own a near-mint, fully restored, KSA-150 class-A power amplifier, with original double boxes and 15 amp power cable. UPDATE – SOLD!

This stunning amplifier also has the very unusual 15-11150 serial number, perfect for a KSA-150! I even have the original owner’s manual somewhere and will try to find it for the lucky buyer.

Seriously, this monster is in perfect working condition. I’ve personally fully restored her and I spared no expense – I was doing it for myself after all. As expected, she has worked perfectly ever since and is a stunning example of this model, almost blemish-free.

This Krell KSA-150 sounds amazing, as you’d expect of a 150 watt per channel class-A amplifier. She probably sounds better than new after the overhaul, due to the way I restore equipment. This amp will also drive absolutely ANY speaker load. My only reason for sale is that I work on hi-fi gear for a living. I have too much of it and need to down-size.

When I overhaul an amplifier like the KSA-150 using premium parts, it typically costs $2000 – $2500. Think of the money you DON’T have to spend on this one, and trust me, they all need restoration. Details of work completed available upon request and I’ve written more about these great amps here, and here.

Sensible offers around $3,500 considered. Remember, this is a restored, 150 watt per channel class-A KSA-150 in near perfect condition.

Shipping anywhere in the world can be arranged at the buyer’s expense. Configured for 240V, but adjustable for any voltage. With original double boxes and power cable.

Don’t miss out on a chance to own a legend!


Power output: 150 watts per channel  continuous into 8Ω (stereo), 300 watts per channel continuous into 4Ω, 600 watts per channel continuous into 2Ω, 1200 watts per channel continuous into 1Ω!

Weight: Nearly 50kg

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It’s so heavy you have to wheel it around – no kidding!

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Australian delivery, set for 240V operation, but multi-voltage configurable, extremely handy!
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Awesome S/N for a Krell KSA-150
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Original double boxes – very rare

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Liquid Mike

As a kid, I cherished my Tandy 200-in-1 electronics project lab, Dick Smith electronics kits, my Dad's hi-fi and my own first proper system. Later, I created Liquid Audio to help keep classic hi-fi gear alive and well. Our mission: to deliver TLC for classic Japanese, American and European hi-fi stereo equipment.

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