"I needed some work done to a pair of 20 year old VTL 300 monoblocks. I wasn't sure where to find service for these amps. A local Audiophile referred me to Frank @ Mufich Audio. I contacted Frank and brought him the amps. Frank took care of everything... Diagnosis, parts sourcing, recap, along with a few modifications to the biasing circuitry. Parts replaced were equal to or better quality than original. Any questionable solder joints resoldered. All this was followed by a slow start-up making adjustments using various equipment and a first-rate distortion analyzer. With his work and improvements these amps now perform flawlessly with improved dynamics, tighter bass, superb midrange and crystal clear highs. Its easy to see that I am very pleased with the results. Frank is knowledgeable, highly skilled and honest. I highly recommend his service."
"Here I am sitting in my office listening to the threshold stasis 150 you refurbished for me. My toes are tapping and my body is moving to the tunes which is my benchmark for how my system is working. You took my ebay purchase which worked and looked okay and transformed it to a unit that looks and sounds new. For anyone who has a piece of equipment with a problem or that is just old and tired and needs a makeover I can highly recommend you talk to Frank. His work is excellent and his rates are very fair."
"Frank went the extra mile rebuilding my Marantz 2385 receiver -His attention to detail and ability to improve performance were phenomenal! He now has a lifetime customer and I will be recommending him to all my contacts in the audio world -Good job Frank and thank you again for bringing back the magic of music."
"Frank, The Parasound is working great. I powered it up last night and was running all 6 channels while watching TV. I received your service to a few people I know in the area and will continue to do so. Not many places would get approval for a $415 repair and then drop the price to $250. Honesty is hard to find when people are trying to make a buck :)"
"My amp sounds fantastic--better and crisper than it ever did! The clean channel cuts through just about everything, and the gain channel is hotter than before by a mile. I used to keep the gain on 9-9.5, but now I get the same "hotness" out of it at 6.5-7. Your repair of the push/pull presence pot brought even more versatility to the amp.
Thanks for the quality job!"
"Frank Mufich of Mufich audio is an interesting man. He combines a love of music with his finely honed skills in electronics, and adds a dash of obsession to each. He’s truly a man in search of the “one true sound” – the desire to get your equipment to come as close as it can to reproducing the music exactly as it was originally performed – and he understands how transistors and capacitors and other mysterious components translate the stuttering flow of electrons into pure music.
Frank has, so far, restored two of my components – a Yamaha C2a preamp (from the golden days of Yamaha in the early 80’s) and a Soundcraftsman power amp (a real 50-pound brute) for me. It’s really nice to have them back afterwards sounding clear and crisp and (perhaps?) better than new – he tells me some capacitors and the like are available that are better now than the ones that existed when the components were designed. He knows how to refine and improve the circuits - not just how to solder in something with the same part number. The result of his efforts is magic.
I highly recommend his work, and his work ethic, and his taste in music for that matter. Ever wondered if your equipment sounds as good as it did when you first bought it a thousand hours of music ago? Ever wondered if it can sound better than it did when you bought it? Frank can tell you, and can make it happen."
Valley Ranch, Tx
"Frank, WOW!!!! What a transformation!!! I cannot believe the improvement in tone and gain! The dirty channel is phenomenal and the clean channel is super clean and silent!!! I cannot thank you enough! If you ever need a customer testimonial, please don't hesitate to ask! What an incredible job!! Thank you again!!!!! Have a happy 4th of July!!!!"
"Two words, "jaw dropping"
The line stage was almost black, almost rivals a modern high end solid state line preamp. The phono section, although noise floor was still a bit high, it was lower than before. What I did notice on the phono section was a huge improvement on the musicality of the sound. Sound quality was improved 100%. Another huge improvement was its amplifier section. The amp seem to have endless power reserve. My friends though it was a 100watt tube amp stage. I did not tell them that it was only 27w/ch.
My review- I ran the scotts for 3 hrs a day at almost half the volume level everyday. After 3 days, I sat and did a thorough check of what it can and cannot do well. The outcome is almost dictated by the amplifier stage, the 7591 tubes.
Can do- Excellent for bright recordings, pop,rock, orchestra classical music with lots of violins, piano, and cymbals. I have absolutely enjoyed listening again to all my bright recordings. I can actually do an extended listening to it right now. So I am now busy cleaning up my old vinyls
Best paired with horn or metallic tweeters as it "softens" the top end.
Cannot do well- Does not "sing" well" in not so bright music such as some of my jazz and blues. Is not the best for soft dome tweeters such as silk dome ones like my sonus faber. The mcintosh mc-60 (6550 tubes) is best paired with soft dome tweeters, it "brightens" the top end.
Overall, I am extremely satisfied with it. It is almost a complete transformation from a dull, noisy, and gasping for power to a very able tube gear, very musical and with lots of power reserve. It seemed that I gained an extra 75 watts of power per channel on it."
Thanks a lot for the restoration that you did.
First off I would like to thank Frank for all the excellent work that he has done for me. I am a collector of vintage audio equipment. So I have had a lot of work done by Frank at Mufich audio. The work that he has done for me is top notch. Not only is his work top notch he is very professional and a most excellent person to do business with. Since I have met Frank and started having him do all my work I would not even consider using anybody else but Mufich Audio.
Thanks again Phillip
Honestly I used Frank the first time because of how convienant his location was to me. After using him several times now I would not hesitate to drive across the metroplex to use him if I had to. His work has been above and beyond my expectations each time. Thanks Frank! Clint
Back in '01 an old buddy gave me a Counterpoint SA5.1 as it had ongoing reliability issues and at that time needed yet another repair. DTB300 bought an Audio Research pre amp that has run flawlessly and reliably for about 10 years now. After making what I thought were the necessary repairs to the 5.1, it provided good sound for a better part of a year, then cratered yet again. I had come to the realization that there was probably something wrong with the power supply that I could not address as I did not have a proper work bench nor schematics. I then sought help. I first asked a noted amplifier maker in the DFW area to help and he said that he does not work on that crap. A more colorful word was actually used. Nice.
As I had a hot spare I let the pre amp lie for several years. That was when I saw a poster here at the Asylum mention a guy near by by the name of Frank Mufich. He said that he had sent a component to Frank and it came back sounding better than ever. I dropped Frank a line and he
said he'd give the pre amp a look over. Much to my surprise he called two days later, saying that there were several resistors that were under sized from the get go and they were now crispy critters. No surprise there. Also there were many under sized capacitors. For instance a 250 V rated cap with 350 volts applied to it. Yipes! There were a few tubes that he found bad in the power supply as well.
As the cost to do the work was not insignificant I gave some thought about going ahead. Do I go ahead and repair / mod this pre amp and have a fine pre amp that may die in another 6 months? Or do buy another for my upstairs rig. A quick call to Frank and he assured me that once these
changes were applied the pre amp would be more reliable than it was in stock form, be somewhat safer and quite possibly sound better than it did originally. I was sold.
What I got back totally transformed what was an ok little system to what it is today. That pre amp has provided depth, space and much more bass than it previously had. After purchasing a Forte 4 from A Gon that system is one very fine early 90s system that would have any audiophile asking themselves if they could possibly make it sound any better without spending several thousand dollars and perhaps not improving anything without compromising another component of the final sound adversely.
As a long time music listener I have been through the mill of people working on my components and having to send the component back again and again as the fix was not properly done. Not to mention the inevitable scratches that uncaring hands end up laying upon my fine metalwork.
And seriously, when does anybody ever meet the time constraints that they tell you it is going to take. Inevitably it always seems to take several weeks, if not more, to get some people to even look at your stuff and just then tell you what is wrong. The loss of your music and the anticipation of the worst can wear on a music listener.
If you need to have a repair on any kind of component, I strongly suggest you first get in touch with Frank Mufich. He will take whatever you send him and make the repair the first time. He will make the
component more reliable than it was in the first place, and it very well may sound better than you ever remember the component had ever sounded. He will treat your precious component as though it his own, so you can rest assure that no scratches will end up on it. If he makes a suggestion that something needs to be done that you are not aware of I would suggest that you spend the few extra dollars. This man is in it for the love of music just like us all. In the context of the quality
that he has bestowed upon my pre amp I have to admit if anything, Frank undercharged me for the work that he did as I love the way it sounds. Honest, timely and quality work is very hard to get on anything these days. I think I just may have stumbled on a tech / engineer that hopefully will outlive me as if I have a problem with any of my components, I am looking Frank up for help.
Frank is the most conscientious audio repair person I have ever met. Frank has rebuilt my Hafler amps from the bottom up. The sound is amazing and equal to the Musical Concepts mods I have bought. The difference is that Frank gives everything his personal touch and tests everything he does for technical specification as well as listening through in his own system.
He has rebuilt mods that I started and finished them out better than any factory built piece I have seen, including Conrad Johnson, Threshold, HK, etc…
If you give him a parameter to work with he will exceed your expectations and the result will please your ears. The value is incredible considering the meticulous work and backing with his work bench and associated testing equipment. After over a year of daily service on each piece of equipment, they all still work perfectly.
There is no finer hifi repair, in my opinion, than Frank Mufich. Oh, and check out his speaker cables!
Thank you Frank!
I have had this equipment repaired or modified by Frank: Hafler DH200 & 220, Harman Kardon Citation I & II, Dynaco PAS, Pioneer SA-8800 (Silver Face), Custom made Baldwin mono amps and Altec crossovers, custom built.
"Before meeting Frank, I had few options when it came to servicing and repairing my vintage amplifiers, and none of them were convenient or priced fairly. Frank took on the challenge of repairing and restoring my vintage McIntosh MC2105, which had been dropped off of a loading dock at a shipping facility. The amp's chassis was severely bent by more than an inch, the back panel was crushed, glass was shattered and the amp was overheating and losing power. Frank jumped at the challenge and even suggested a few performance modifications that would not effect the amp's sonic signature, but would drastically improve the amp's fidelity and performance. Frank's modifications succeeded in turning my MC2105 into an amp capable of shaming a whole host of $20k modern amps. Cosmetically, Frank simply made my McIntosh look like it did the day it rolled off the assembly line. It's now a show-quality amp that friends can't believe is over 40 years old. Since that time, Frank has restored 6 of my amplifiers, both solid state and vacuum tube, and he'll be my first stop on any vintage or current amplifier that I purchase in the future. Frank cares about audio in a way that will resonate with any audiophile. In Frank, I'm proud to have found not only an absolutely first rate technician, but also someone who I can call a friend."
To whom it may concern;
I recently took my vintage 1978 Fender Deluxe Reverb amplifier to Frank @ Mufich Audio for some loving care. This is one of our 16 or so old tube amps and it had been making a very loud and obnoxious noise after about 30 minutes of hard use but it only seemed to do it at performances, never at home. Because of this unpredictability my son would not use the amp anymore at shows for the last couple of years.
I had given the amp to my former repair guy and after having it several weeks and replacing a few minor components he returned it to us. The amp continued to misbehave and was again put back on the shelf.
Recent circumstances dictated that this Deluxe Reverb would be just the right amp for a new project so I resolved to have Frank take a look at it. I was already encouraged because every other amplifier Frank has fixed for me was done fast, at a fair price and using only top quality components. Most importantly for a working musician, the amplifiers that Frank fixed stayed fixed and could be used at performances without fear of failure.
After bringing the amplifier to Mulfich Audio one afternoon I headed home and a few hours later received a detailed estimate showing suggested repairs including options to upgrade some components for better performance and increased longevity. Labor and parts were itemized so I sent Frank back an email saying to go ahead with all suggested repairs on the vibrato channel and elected just light maintenance on the normal channel.
Two days later Frank notified me by email that the amplifier was complete and singing beautifully. I picked it up the next day and Frank spent an hour going over the repairs, replaced components, explaining their functions, etc. and we used the amp that night at a show and have been using it regularly ever since….with confidence.
I was generally happy with my previous repair guy in that he knew everyone in the music business, told great stories and generally did good repairs for cheap. I’d been using him for 7 yrs. What I did struggle with is the length of time it took….sometimes months. My most recent experience with him was a very expensive, very collectible vintage amp for a friend that had cabinet rattle. He did fix it but it took a full 4 months and my friend was livid about the wait. I won’t be going back.
Frank is an expert in his field and highly educated in all things electronics. He doesn’t guess or simply replace parts…he understands the function of every component and evaluates every component. He is conscientious to a fault, works fast, is always available, and as I’ve said, charges a fair price for his time.
I’m happy to say I’ve recommended several of my musician friends and family to Mulfich Audio and had nothing but stellar feedback from happy customers. If it’s electrical bring it to Mulfich Audio for fast and accurate repair.
I found Frank Mufich through one of the members of Audiogon, he was highly regarded to repair and upgrade tube amps. I have a 20 year old pair of Quicksilver M-135 Monoblocks that were starting to have issues. I purchased them a year earlier second hand and as a result i felt that the best
course of action was to have Frank totally go through them to replace the aged and worn out parts. He went through both amps replacing caps,
resistors and various parts but also added a slow start circuit for added safety. He totally rebuilt the power supplies and bias circuits as well as adding
new small signal tubes.
When i picked the amps up from his house two weeks later, Frank put the amps on his test equipment to show me how they now speced out after the upgrades, and then i took them home and plugged them in, they took on a character that words cannot describe.
the bass was super tight and articulate, the mids sang like never before and the highs were so life like, it was like having the performer in the room.
I played them several hours each day as the new components broke in which added more dimension to the soundstage and nore refinement.
Frank told me the amps were good to go for another 20 years! I rarely go out of my way to provide feedback but in this case i am so pleased
with the results that i can fully recommed Frank for your tube amp repair and upgrade!
I moved to Dallas from Chicago a little less than a year ago. I was in need of some work on one of my tube integrated amps and did a search for someone in the Dallas area and came across Frank. When I called him for the first time we talked for almost an hour and I felt like I had known him for a long time. He set up an appt. for me and I took my amp to him and I was blown away at his lab and equipment that he had. He did want I wanted done and suggested a few more things. I picked it up in less than a week and got home and set it up and it sounded better than I have ever heard it! Since then I have been to his place a few more times with another of my amps and a cd player that he worked his magic on and again they both sounded better than they had before! Frank is very professional and quite the genius in the field of electronics. He is also great to have conversation with and I consider him to be a friend. I will always take my equipment to him if need be. Its nice when you can put your trust in someone that genuinely cares about his craft and wants to see that you are satisfied. Very highly recommended! Thanks Frank for everything!
I’ve had Mufich Audio repair or restore in the last few years approximately a dozen pieces of high end vintage home audio (never the same piece twice due to the quality of the work) with the gear being primarily tube with some solid state and a few speakers/turntables. Every piece came out looking and sounding great and it’s all been completely reliable. If you have quality audio gear that you need repaired or restored and want it to sound like new or better, Frank Mufich is the man for the job. Mufich Audio customer service is first rate and Frank has even been very helpful in helping me avoid some problematic gear. Mufich Audio gets my highest recommendation and I hear he does the same quality work on pro gear too.
"I am the proud owner of a H.H. Scott LK-48 integrated amp that I wanted to have professionally restored. I did quite a bit of research in finding someone with the knowledge and skill to do the job right. I first became aware of Frank Mufich through a vintage audio enthusiast message board where he came highly recommended by several members. I contacted Frank about the job and he quickly replied to set up a time where I could bring out the amp. Once I arrived at Frank's house I knew I had found the right man for the job. He walked me through his process (most of it going completely over my head) as it was important to him that I understand the level of detail he takes in his restoration process. His genuine love for music, sound reproduction and his work was so evident in talking to him that I felt completely at ease with contracting him for the job. His communication throughout the job was top notch. He completed the job relatively quickly and when I arrived to pick up the amp he again walked me through every step of his process(again going over my head). What did not go over my head was the sound quality he was able to achieve with my little Scott. Once I arrived back at my house I hooked it up to my K-Horns popped in The Beach Boys "Pet Sounds" and the sound it created was nothing short of mesmerizing. I have listened to "Pet Sounds" countless times but I felt as though I was actually hearing it for the first time. Since then I have steadily been falling in love with my entire record collection again and I really have Frank to thank for it. I will happily use Frank for any future projects and could not recommend him more highly for any vintage amp restoration projects of your own."