For higher power the SPA2-200 two channel amplifier delivers up to 200 watts rms per channel into 4Ω or 8Ω; the two channels can also be bridged providing up to 400 watts rms into 4Ω or 8Ω. When the channels are bridged they can be switched into 70V or 100V direct drive mode providing up to 350 watts rms into a mono 70V or 100V output. Like the other SPA models, an 80Hz highpass filter is engaged when in 70V or 100V mode.