Yes, some specific models had specific problems and if a shop only took these particular ones, thats all they know and tend to generalise on overall quality. Trace also started to make much cheaper product; entry level and practise gear, which by its very nature is not going to be as good as the top Pro gear. We expanded so widely that at one point we had 140 different products, some with 5 voltage variants, but overall the quality was better than most in the market.
With the experience that we all gained in R&D over the years, the last designed products, examples being: V4 & V8 valve Bass amps, re-designed Trace Acoustic Amps, Speedtwin Guitar range and the Evolite PA systems, were without a doubt Traces best ever products. These were supremely reliable and incredibly well engineered. There was over £500, 000 on back-order when Gibson pulled the plug!
In the mid to late 90s, we were producing massive amounts of product and had some really daft production issues that caused 100s of MOSFET Bass amps to fail intermittently. This was caused by a simple connector that wasnt right for the job. By the time we found the problem, 1000s of units were in use all over the world. There were a number of reliability issues from that period, but as production was on a much larger scale, these problems can seriously affect a companys reputation. There was also a batch of output transformers in the little Vellocette amps that would go short-circuit after a certain number of hours use. Not something youd ever pick up in R&D or production testing. This news spread around the world like wildfire, but it was only a small number of components in many 100s of thousands of products.