About Us

Watts Abundant is owned and operated by Don Imlay. I do this on a part time basis for two reasons. First, I like the Phase Linear product line. Second, Watts Abundant provides a little money to buy big boy toys etc. Since this is not my primary income, I never have to sacrifice quality versus the bottom line. On the other hand, if the bottom line is going to suffer, I don’t do it. That’s why I don’t work on every receiver that comes along.

I’ve been interested in electronics since I was a kid. I had all of the electronics experimenters kits. My brother and I also had an extensive H.O. racecar track. I learned a lot about motors, DC and power supplies from this experience. A few years ago I designed an H.O. car power supply which used an amplifier class B output circuit with current limit. I used a welding foot controller to vary the output. When you let off the pedal, the power supply would put out an adjustable negative DC voltage to act as a brake. Although it worked well, it’s easier to use hand controls rather than your foot for H.O. racing.

In 1976 I graduated high school and went to tech school hoping to get a job in pro sound. Graduated in March 1978.

From 1978-1983 I worked at various companies in the field of power conversion. This included transformer design and manufacturing, military inverters and DC motor drives.

In the spring of 1983 I got a job with a pro sound company doing repairs and installations. The company was a Phase Linear dealer. I learned a lot about Phase Linear amps real fast. The company fell on hard times and they had to let me go. In hindsight, this was the best thing that could have happened to me. It’s hard to make a decent living doing repairs full time.

In December I 1983 hooked up with an uninterruptible power supply (UPS) manufacturer. I went to the interview thinking brown trucks. I started doing audio repairs on the side. Twenty plus years later I’m still bringing home the bacon with UPS’s.

From 1984 to about 1995 I was doing part time work with a local mail order hi-fi company. They purchased the entire remaining Dynaco inventory and reintroduced a few models. I was the primary technical person. I tested hundreds of driver boards for Dynaco amps. I did the warranty repairs as needed but very few failed. They later purchased a large inventory of Hafler parts. The early Hafler amps were reintroduced. I did a lot more driver board testing. They also got into tubes and sold amps and preamps. I did a lot of development work, built test sets, and did production testing. At the peak I had 3 tech friends working there also.

In 1991 I became a father. Audio work conflicted with being a daddy and eventually I had to get out of it for a while. As kids get older they don’t need or want parental presence as much. So now there’s a little time to get back into audio.

Our Philosophy

A few words here on my approach to repairing amplifiers…

  • I cringe when I hear comments about magic smoke etc. Working on electronic equipment with high DC voltages is something that should be respected as it can kill or severely injure someone. There is nothing funny about it.​

  • Regardless what I’m working on, I always start out with a light bulb in series with the AC input to limit the current. Variacs do not limit current. They limit the voltage. The light bulb responds automatically to “fault” conditions. The variac operator responds only after he has seen the fault current go much to high.

  • Once repaired, the amplifier should be able to pass all tests without incident. Amplifiers are subjected to worst case conditions while on the bench. Worst case conditions include temperature and power line voltage extremes and vibration tests to name a few. If the amp has a current limit circuit or other protection circuit, it will be verified if at all possible. If the amp is going to fail again it should fail on the bench or last a long time.

  • Only factory specified parts are used. Generic substitutes are never used. I am very confident of my ability to repair an amplifier. However, I avoid second guessing the original designer’s decisions as he likely had many reasons that I am not aware of for selecting a part.​

  • When finished the amp will look and operate as close as possible to like new conditions. There is no substitute for quality craftsmanship. I’ve seen lots of electronics that were butchered by repair attempts. That’s not me. I clean controls with Deoxit. PC boards are cleaned of solder residue. A general purpose cleaner (windex or similar) will be used to clean up the front panel. Nicotine will be cleaned off of the panels and inside where possible. Note: If a person wants to stop smoking, look at the inside of a guitar amp that has lived in smokey bars. You’ll see nicotine dripping off the controls