Anybody used Nikko amps before?

I have 2 Alpha 450's with a BTL1 bridging unit. The BTL1 allows me to run each amp in mono. I have 3 other Alpha 450's that are broken and will be repaired to completely run my whole home theater with.

I have a Beta 20 preamp, a Beta 30 Preamp, 2 EQ1's, a Gamma 30 Tuner and an Apha II amp on the way. Nikko made some very good component systems. They have a warm, natural sound that I find it difficult to reproduce with more modern equipment. The other reason i like Nikko is less tangible; the controls just have a solid, well-made feel to them, not like Some more expensive brands. Very nice, very durable equipment. Great sound, low distortion, decent price.

What do you guys think of the Nikko 130 coupled with the Beta 30 pre-amp

I picked up a pair of Cerwin Vega CLSC 12's (Tower Speakers and needed something to power those.

They are rated at 150rms @ 8 ohms,

I listen to mostly rap and every home theater receiver i tried out there doesnt push these speakers to well.

Someone told me to get a power amp...

what do you guys think?

I've had the Nikko NA-690 for ages now. Having already pursued the high end and home theater ad nauseum for some time, I can without reservation vouch in this case for the amp's reliabiltiy and sound; it plays like it did when new and has the clarity, warmth and headroom mentioned in prior posts. Sure it's mid-fi strictly speaking, but represents everything good about the genre/era and yes, sounds robust and vibrant after all this time. Right now it's connected to a Philips 963SA DVD/CD/SACD player and kicking tail through it's generous headphone output. Also sound good with Rega 25 and Shure V15VxMR using it's MM phono amp. Power belies modest rating, runs great in family room. Unless it's been abused, recommended especially at the used prices it goes for.

I have a Nikko NA 790 and it is not working. We have it hooked up to our PowerMac G4 (using iTunes) and Bose Acoustimass 3 series IV but for some reason, we are not getting any sound out. We are using a standard RCA to mini cable. This is really frustrating. And unless we can resolve this issue, the almighty Nikko is headed straight to the curb. I am a total novice, so any advice in layman's terms would be hugely appreciated.