Next up: Car amplifiers...I also think that these are terribly overpriced, but there are certainly some complications in car audio that are otherwise not an issue in home audio.Linear PSUs have to take 12vdc, push it up, convert back to dc... SMPS are cheaper and easier...I suppose the entire design rationale changes as a completely different set of circumstances faces car amp designers.Are DIY car audio amps a good idea? Has anyone given this a bash?
Soundslimited has a Phoenix Gold Xenon for about R2.5k 4 x 200w RMS. It has a Darlington power supply for same power at variable loads.
Phoenix Gold Xenon X200.4 4ch Amplifier 800 Watt Power Amplifier High efficiency (greater than 80%) Class D Operation Xe.load™: optimized for any impedance load Xe.tune™: 24dB Linkwitz-Riley subsonic and low pass crossovers Xe.flow™: variable thermal feedback controlled fans Tried and true triple Darlington output stage Buffered RCA full range thru output Remote Monitoring Display (RMD) port Low Pass Level control ready (LPL-44) 200W x 4 (4-1 ohm stereo) 400W x 2 (8-2 ohm bridged) Built-in Crossovers Optional Remote Voltage Display Optional Remote Low-Pass Level Control Variable input sensitivty 0 - 18dB Bass Boost at 45Hz CEA-2006 Compliant Dimensions: 22" L x 10.6" W x 2.5" H (55.9cm x 26.9cm x 6.4cm) Number of Channels 4 RMS Power (4 ohms) 200 watts x 4 channels RMS Power (2 ohms) 200 watts x 4 channels RMS Power (1 ohm) 200 watts x 4 channels Bridged RMS Power 400 watts x 2 channels Total RMS Power Output 800 watts Peak Power Output 1600 watts approx. Minimum Impedance Unbridged 1 ohm Minimum Impedance Bridged 2 ohms THD at Rated RMS Power <1.0% Speaker Level Inputs No Preamp Outputs 1 pair Built-in Crossover N/A Signal-to-Noise Ratio >90 dB Bass Boost 0 - 18dB(45Hz) Fan Cooled Yes Fuse Rating 120A
