A friend I speak to regularly was on a quest to find a clean class AB amp and bought one of these. It is the worst of all of the 5 amps he bought. Apart from that, I can't say anything else.
I did a search before starting this one, nothing came up.There are several older threads on these, here is one.
New Rocket Box might give Texas Star a run for their money. Info from their face book page:
https://www.facebook.com/Rocket-Box...yxom3Ci0hxe0PbT_HZQI4qdFGj_ftRtjX2qhFX-H0dXUH
Rocket Box Electronics
November 23...
customcbradios.com
rocketboxelectronics.com
Clean? As in not dusty? Or did you mean sampled to an analyzer and you saw third order harmonics higher than acceptable? None of these off the shelf amps have output filtering. For fixing/testing/building these type of amps I picked up a copper version of one of these:
I have one and I love it! After I put a fan on top of it, have it turn on with the AMP while using LMR240 coaxial with an sirio antenna with SWRs set at below 1.5 while using common mode choke a foot from the antenna I am able to comfortably talk skip all day long. The coaxial ground is directly bonded to the car body. There's also a low pass filter between the radio and the amp and another low pass filter after the amp.
The site search function doesn't work so well sometimes. I have much better luck using Google to search this site. In this case if you put "WWDX forum rocket box amp" into Google you will find a couple threads on this very subject from 2019.
Clean, as is not distorted. He was driving it with a 3 watt tube base radio, sounded like shit. I don't need a spectrum analyzer to tell me it is crap, I have ears.Clean? As in not dusty? Or did you mean sampled to an analyzer and you saw third order harmonics higher than acceptable? None of these off the shelf amps have output filtering. For fixing/testing/building these type of amps I picked up a copper version of one of these:
Vintage RL Drake TV-1000-LP Low Pass Filter 1000 watts 52 Ohms USED | eBay
Vintage RL Drake TV-1000-LP Low Pass Filter 1000 watts 52 Ohms USEDwww.ebay.com
There's no moving parts. They need some Electro-Wash on the SO239s and they work.
If the amp sounded like crap, it was overdriven. These rocketbox, and a lot of other brands as well, state a max input power in PeP. Problem is most people don't have a meter that does PeP correctly. A true PeP circuit requires power (voltage). If your meter works on PeP mode without batteries or other power, it's not really an accurate reading.
These HD500 models are a 0x4, straight thru input, your radio is the driver. The LD500 are 2x4. 2 drivers into the finals. With a decent LPF, I like these amps, especially th HD versions.
Google is the way to search this site imo. This string works well:
