My Audio Research experience


To all you goners out there, here is my experience with Audio Research.

Approximately four years ago I purchased an AR Reference 75 power amp.  It was on special at the time and I bought if from a dealer in Brisbane, Australia.

I used the amp for the rear channels of my home theatre system which I only use occasionally because I travel a lot for work and I mainly listen to music.

One night I switched the amp on and a white flash and burning smell came from the amplifier and it didn’t power up.  I thought it may have been a tube, and because I had no spares, I reported the problem to my Brisbane dealer and via email to Audio Research.  A copy of the reply sent from AR on the 5th March 2016 follows:

'Thank you for choosing Audio Research and the REF75. I suspect you had an internal tube arc. The internal tube short can also take out a plate or screen resistor. So just replacing the tube will not fix this problem. The resistors also need to be replaced. You can confirm this by checking the bias for this tube. If the bias reads zero, a resistor is open.  This is an easy repair that our distributor in Australia can do.

The SE update for the REF75 comes with a complete new set of tubes including a new set of KT150s.  This is the only way it is sold. If you so choose, Our Australian distributor can also install this SE upgrade for you while the amp is in for repair.'

I then proceeded to order some more tubes to see if a replacement tube would fix the problem.

I ordered the following tubes:

2 x Electro-Harmonix 6H30Pi Gold with Matched Triodes (Balanced)

4 x KT150 Power Vacuum Tube - [Matching (10+ tubes)]

4 x KT120 Power Vacuum Tubes - [Matching (10+ tubes)]

When they arrived, I tried the new tubes but they didn’t fix the problem as the amplifier failed to switch on.  I then contacted my dealer and freighted the amplifier to Brisbane for repair.  This was done in June of last year.  I included all of the above tubes in the package in case they were needed.  I also would have liked the amp to be upgraded to SE status using the tubes supplied if possible.

In September/October last year I enquired about the status of the repair and before Christmas enquired again. After again emailing AR, I was contacted by the Australian Distributor who told me that the service agent in Brisbane had been trying to get parts for the wrong amplifier and that the amplifier would be transported to Melbourne for repair.  I asked them to get me a price for the upgrade using my tubes.

In January/February of this year, I was contacted by the Australian Distributor and had to supply proof of purchase because there was a dispute over whether the amplifier was in fact under warranty when the fault occurred.  I again asked about getting the upgrade using the supplied tubes which were still with the repair agent in Brisbane.  Eventually I was told that I could have the upgrade using AR tubes only, for the heavily discounted price of $3,000 Australian.  Nothing like gouging your customers!!!!!!  Especially when I could have bought a small car for the original cost of the amplifier in Australia.

I chose to just get the original amplifier repaired under warranty which I was told needed a new main circuit board.  This week my amplifier finally arrived back home after nearly 12 months away for a repair under warranty.  The original tubes have been put in a box with ‘Faulty Old Tubes,’ written on the box.  The tubes I sent with the amplifier have not been returned, and no replacement tubes have been included.

I am amazed that the initial fault destroyed six tubes, so I have asked how the Distributor tested the tubes to determine that they were faulty.  I am now left with an amplifier that doesn’t work and 10 expensive vacuum tubes missing somewhere in Australia.  I am also left with a conundrum, if when I finally get my tubes back and use them to ensure the amplifier works, what happens if it doesn’t.  Will AR then blame me for any fault that occurs on power up because I haven’t purchased tubes from them at their heavily marked up prices????

For me I will never touch another Audio Research product for as long as I reside on this planet.  I will be telling all my audiophile friends and putting this report on every forum that will publish it.  Best of luck for the future Audio Research and may you drown in your policy mess!!!

128x128thazeldean
I used the amp for the rear channels of my home theatre system which I only use occasionally because I travel a lot for work and I mainly listen to music...........
Especially when I could have bought a small car for the original cost of the amplifier in Australia.
I'm curious as to why you would buy a tube amp--& a super expensive one, it sounds?--"just" for the rear channels of your home theatre system? To each his own, but I'd be thinking SS for HT.

It does sound like you had a horrible "repair" experience tho (where the thing wasn't even repaired?). I'd be thinking--what are reliable brands of audio gear sold in your country, with availability of good service. (I'm sure you are, now).


Again, I feel for the OP and his issues with getting his amp diagnosed and repaired.  Also, again, this wasn't an Audio Research caused problem, but a Dealer issue.

The main problem with the posts I saw here is that some took this as an opportunity to bash Audio Research without getting all the necessary information.

The majority of people have no idea how amplifiers work or the circuit designs involved.  Therefore, to use this analogy, assuming that a person should know this is faulty thinking.  Audio Research choses not to use fuses on their tubes because they chose to not do so.  That is their choice.  I have seen many different circuit designs. to each their own.

Same with cars.  Who among us is a auto design/repair expert?  I know circuitry pretty well and I definitely know cars very well.

I'm not going to go through the motions of purchasing an amplifier and get into the nuts and bolts of the circuit design.  First thing first.  Does it sound wonderful in my system? will the company be around later to repair it?  Can I afford it?

To expect a normal person to know advanced circuit design is not realistic and is just presented to make more arguments against a company they don't like in the first place.

The OP needed rational opinions and help.  Not Audio Research bashing.

If the dealer is an Authorized Audio Research repair facility, then he really didn't have a choice but to send it there first. 
However, I've learned to contact the manufacturer to find out who are authorized service facilities and where they are before getting my expensive equipment worked on.

That said, the negative experience shouldn't make you turn from Audio Research. It would instead make me very cautious about using that dealer again for repairs.

I listened to my old Claire Marlow CD Let it go last night and I forgot how good that music was.

enjoy the music.

minorl,

No one is really talking about getting into the nuts and bolts of circuit design, just the most basic discussion that unwary buyers may want a heads up that there may be an increased chance of expensive repairs required down the line versus some other brands of tube amps due to the ARC lack of fuses.  Some may care, others may just fit into the overall cost of ownership as you have.

Some sad anecdotes in this thread. Examples like these contribute to the “looks” audiophiles get from “normal” people – even those with equally passionate/extreme/expensive pursuits like wine, musical instrument, and vintage car collecting.

It’s very likely that the repair for the original poster’s amp requires $20.00 in parts (I’m being generous and assuming boutique parts) – the sort of repair such as a blown screen resistor that a competent guitar amp tech would bill an hours’ labor for. Let’s be generous and add another hour for ARC’s biasing procedure.

There are those in this thread who equivocate the maintenance costs with that of owning an exotic sports car. I consider this argument to be flawed. Periodic maintenance of a Ferrari is expensive. Maintaining an ARC amplifier is expensive. Therefore, all high performing amplifiers are complicated and expensive to maintain. Members of the club are suffering from confirmation bias.

I absolutely encourage audiophiles to understand their system architecture and how to maintain their gear. At issue here however, is that the industry (manufacturers/reviewers) treat these failure episodes as a rite of passage for audiophiles, as opposed to a component failure and potentially a design flaw. It's not an issue of an unsophisticated user.  Parts fail, and on occasion, a shorting tube can take out a component. I get that. I also get that in most cases, the repair is simple and straight-forward.

I am in no way singling out Audio Research or saying that you will not enjoy their electronics. I am however encouraging you to decouple the concept of “difficult care and feeding” from audio quality and musical enjoyment. You have options and can vote with your checkbook.

Cheers,
Thom @ Galibier Design

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