yea the 500 is a stright 4pill amp.no driver your radio is the driverStraight from the texas star site and I'm sure 5 watts (RMS) would equate to 15-20 watts pep.
I used to run a dx500v with 7 watts carrier input and 45 watts pep with no fan and it stood the test of mack, I mean time.
CW Transmitters (Models DX 400, DX 400V, DX 500, DX 500V, DX 667 and DX 667V)
These transmitters are designed for mobile or base CW operation. Powered by the 12 volt vehicle battery or 12 volt regulated power supply, the maximum power output is less than 5 watts RMS. Frequency of operation is within the 10 meter band, determined by installation of a crystal into the oscillator board. The transmitters contain a transmit/receive relay and an output connector for the receiver to share the antenna and permit break-in operation.
the 667 has a built in driver 1x4 so gotta be more carefull with this one or
any amp thats 1driving4 or 1x4.it may handle the input ya want but dont be
surprised if people tell ya you sound like your overdriving it.just dont like hearing
bad stuff about great equiment.this amp is by far the best amp for a low power radio