Does anyone know of companies which market 150 watt per channel, 8 ohms, ampliers?

I'm looking for 2, 4 or 8 channel *power* amplifiers (no volume/level controls, tuner or preamplifier/integrated circuitry) that fit EIA standard 19" rack mounts, 1 to 3 rack spaces high, i.e., 1.75" to 5.25" in height.

I've Google, Froogled, etc. without success. I've found several models that come close (Crown, ATI, AudioSource, Russound), but still no exact match(es) -- along with scores of totally unrelated products that invariably show up near the top of search results from retail outlets.

All suggestions appreciated. Thanks.

HorseSoldier