The only Linear Power amplifiers that I liked were the LP, DPS, HV and HVS series. Unfortunately, they are NOT worth the price they command on the used market. For example, I watched a DPSQ50, which is rated for 50x4 @ 4 ohms with 25 amps of fusing sell for $700. Are you going to tell me that the Ell Pee is worth $475 more than the $225 I paid for my Lunar Amplifiers L450 used? FWIW, the Lunar is rated for 50x4 and uses a 70 amp fuse.
On the other hand, nearly EVERY IQ or older Linear Power amplifier that I owned had some sort of noise issue or another, and MOST did NOT make rated power.
Of course, there was a major failure in my nostalgia.... The Ell Pee relics were designed in an era when power was hard to come by and speakers were highly efficient. Coupling those amplifiers with modern day, highly inefficient drivers, was a MAJOR mistake! Thinking TIPS (aka RIPS) modifications would bring those relics up to modern date, was another pipe dream. Basically, the modifications take those overbuilt amplifiers and run them closer to the edge, only to cause them to need repair again.
Regardless, I am pretty much over that brand. If one wants a 500 watt RMS amplifier that takes nearly 80 amps of current draw at 14.4 volts to make said 500 watts, stick with Ell Pee. There are better old school amplifiers out there for less money.
On a positive note, I only lost $26 over the 14 Linear Power amplifiers that I sold.//content.invisioncic.com/y282845/emoticons/greedy.gif.5a53e6246569d7ab79867170f3b06629.gif//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif