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We have been very fortunate to work with some of the nicest customers! We put a lot of effort into satisfying their needs by going the 'extra mile'.


So we are please to offer up some of the comments we have received regarding our services. We really appreciate these testimonials as most of our work is by word of mouth.


Thanks for your kind words!



Ted Jolly ( has been helping me to get my M79 (3M Multi Track Recorder) back into shape.

I cannot say enough nice things about the service he has provided thus far! His rates are very reasonable and he is great about answering emails.

His work is top notch and thorough and he really knows these machines!

I highly recommend his services!


Customer: siberiaguy (Paul) 

Location: Las Vegas, NV

March, 30, 2006

Absolute fabulous service, highly recommend purchasing from grssystems

Customer: artillustrator_1 Dec-26, 2005

Great service and a great product - well all concerned !!!

Customer: waterfield123 Nov-11

'It' (used tape deck) showed up and (GRS) tech support helped get it working!!
overall very good service!

Customer: joetow2001 Aug-12, 2006

In a message dated 3/6/2008 12:12:32 P.M. Pacific Daylight Time, David C. writes:

Following a recommendation posted to the AMEK forum at,  I sent my failing TAC power supply to GRS Pro Audio Systems, and they did a great job fixing/upgrading it.

I never spoke with them by phone, but we traded about a dozen emails. Their communications were very detailed, thorough and timely.

At each step of the process, they sent me a note (sometimes with a picture) and asked if I had any concerns or questions. In being so mindful, they were able to easily accommodate my needs.

For example, to upgrade the power supply for my Scorpion desk, it was determined a fan should be installed. Instead of slapping one in and then later telling me about it, I was able to let them know that I am paranoid of fan noise, and that I wanted the quietest fan that they could find.

My studio has an extremely low noise floor to accommodate foley work, and in the past I was severely traumatized by an extremely noisy AVID Mac 9600 fitted with an additional fan that I could detect subtly leaking onto cloth movement tracks.

I then wanted GRS to fabricate an (upgraded) 25 foot cable so that the power supply could be relocated to the machine room. Something possessed them to describe the flexibility of the cabling they intended to use, which was a bit stiffer than the original snake, and they asked if that was OK. Why would anyone go to the trouble of asking about such a minute detail? Perhaps wisdom born of experience?

For soundproofing, the cable trough I have between the control room and machine room has a couple of 90 degree turns as well as one tighter 180 degree turn. Therefore I needed a cable with "normal" flexibility.

Obviously, I am very happy with how carefully and professionally GRS Systems performed their work for me.

Customer: DC

Venice, CA




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Tel: (951) 767-2570 x91