Page 6
The X150 has 40 output Mosfet power transistors in TO-3 plastic packages, again matched to
0.5% and drawn from the same lot codes for each type. The output stages can sustain
transients of about 5,000 watts, but are not allowed to dissipate more than 1000 watts for any
instant, even into a dead short.
So how long will this hardware last? It is my experience that, barring abuse or the odd failure
of a component, the first things to go will be the power supply capacitors, and from experience,
they will last 15 to 20 years. Fortunately they die gracefully and are easily replaced. After that,
the longevity will depend on the number of operating thermal cycles, but I can say that I have
had amplifiers operating in the field in excess of 20 years with no particular mortality except
capacitors. The answer is, I don’t have good information beyond that. More to the point, I
would suggest that you not worry about it. This is a conservatively built industrial design, not a
tweaky tube circuit run on the brink. If it breaks, we will simply get it fixed, so sleep well.
Warranty Information
This product is warranted for parts and labor from the date we ship it. Check with the factory
authorized distributor in the country you are purchasing this product for specific warranty
information.
Distributors are only required to offer warranty service on Pass products that they have sold.
They are not obligated to offer warranty repair for products purchased from other distributors.
Products purchased from other distributors should be returned to the country of purchase for
warranty repair.
