Amplifiers

Articles about power amplifiers, integrated amplifiers, monoblocks, big and small amplifiers, solid-state and tube amplifiers!

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Luxman M-4000 Amplifier Repair & Service

Check out this beautiful Luxman M-4000 power amplifier I’ve just serviced. This classic vintage beast needed a little work, let’s take a look. The Luxman M-4000 power amplifier is a compact, dense, 180 Watt per channel amplifier. It’s the predecessor of the M-4000A, which looks very similar but is substantially different design-wise and even rarer. […]

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Stunning Rotel RA-1412 Amplifier Repair & Service!

I’ve just repaired and serviced this gorgeous Rotel RA-1412 integrated amplifier and she’s now available for purchase. This incredible Rotel RA-1412 integrated amplifier is now available to buy, from my friend Pierre @ Revolution Turntable. Pierre runs Revolution Turntable, one of the last proper hi-fi stores in Western Australia. It’s well worth a visit if

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Krell KAV-150a Amplifier Repair & Restoration

This beautiful Krell KAV-150a power amplifier is the partner of the KAV-300i I restored last year. Come along as I repair and restore this one. The Krell KAV-150a is another product from Krell’s more affordable KAV line, from the mid-’90s. Whilst certainly more affordable, this gear is most definitely not cheaply built, sharing the same

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Marantz 1152DC Integrated Amplifier Repair & Restoration

How’s this for a beautiful amplifier?! I recently repaired and restored this absolutely stunning Marantz 1152DC integrated amplifier, let’s take a look. The Marantz 1152DC is an integrated amplifier from the upper middle of Marantz’s range in the late 1970’s. The 1152DC and others from this series are very collectible now, thanks to their unique

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Transistor Matching in an Accuphase E-202

I’m repairing a gorgeous Accuphase E-202 integrated amplifier and there’s a need for careful transistor matching in audio gear like this. Choosing and matching transistors correctly is critically important when repairing or restoring audio electronics. I’ve learned this over the years, through experience and from people who’ve been doing this for much longer than I

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Accuphase P-600 Amplifier Inspection & Setup

The Accuphase P-600 Power Amplifier is one B-I-G mother of an amplifier. Come with me as I complete a post-purchase inspection and setup on this one. Anyway, I’m not complaining, I LOVE working on equipment like this, even if it is heavy and the work slow. The Accuphase P-600 was, as far as I recall,

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Shocking Krell Destruction Hall of Shame Addition

These latest additions to the Hall of Shame are two of the worst cases of hi-fi electronics bodgery I’ve ever seen. This shocking case of Krell destruction, in this case of a Krell KRC preamp by a so-called ‘expert’ has to be seen to be believed. Visit my Hall of Shame for all the horrifying

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Sony TA-4650 VFET Amplifier Service & Reliability Enhancement

I’m reluctant to use the word ‘sexy’ when it comes to hi-fi gear but if I were to, it would apply to this baby Sony TA-4650 VFET amplifier! What can one say after working on one of these stunning Sony TA-4650 VFET integrated amplifiers? I fell for this little beauty and came to understand why

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Luxman SQ-202 Amplifier Repair & Service

A great example of the beautiful gear I get to work on is this stunning Luxman SQ-202 integrated amplifier that I’ve just repaired and serviced. The Luxman SQ-202 integrated amplifier is a model dating right back to the early ’70s. In fact, it was released 1970 and produced until 1973. Lots more great information and

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Krell KAV-300i Amplifier Repair & Restoration

I’ve just repaired and restored this lovely Krell KAV-300i integrated amplifier. Read on to find out what makes the KAV-300i such a superbly engineered amplifier. Krell still proudly builds amplifiers and other high-end gear, from their base in Orange, Connecticut, USA. Established in 1980, they set about manufacturing a range of really different hi-fi equipment,

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