Peavey CS-400, Stereo Power Amplifier, Made in USA | eBay
Avantone Pro CLA-400 Studio Reference Amplifier | Sweetwater
Sundown Audio SALT-400.2 (SALT Series) Car Amplifier 2 Channel 400 Watts RMS x 2Ch
BOSS Audio Systems OX4.400 4 Onyx Series Car Amplifier – 1600 High Output, 4 Channel, Class A/B, Low/High Level Inputs, Low Pass Crossover, Bass, Full Range, Bridgeable, For Subwoofer
MAA4.400 Amplifier - Motorcycle Audio by PrecisionPower®
FA2-400.4 Formula 400 Watt Amplifier | MB Quart
MUD Series 400-Watt 4-Channel Full Range Class D All Weather Powersports Amplifier | MTX - Serious About Sound®
400W Dual Channel Commercial Audio Power Amplifier | AtlasIED
ZR 4-Channel Class D Amplifier 4 x 400 Watts Rms @ 4-ohm
PrimaLuna EVO 400 Tube Integrated Amp – Upscale Audio