Mesa Boogie Subway D-800+ The SUBWAY® D-800+™ addresses the player who wants enhanced frequency control and an interface for outboard signal processing. The upscale D-800+ preamp features expand upon the acclaimed D-800 by including a comprehensive EQ section with Semi-Parametric sweep-able LOW and HIGH MID Bands, the addition of a BRIGHT switch, an adjustable HIGH-PASS Filter with control from 30Hz to 150 Hz, and on the Rear Panel, a Series Effects Loop, Tuner Output and 1/4” MUTE footswitch jack. Features: Made in Petaluma, California with the World’s Finest Materials Class D Power with 8/4 or 2 Ohm Impedance Switch for optimum Power to Load Performance 800 Watts @ 4 or 2 Ohms (400 @ 8) Active/Passive Input Switch Play/Mute Switch Preamplifier features: Input Gain with Clip Indicator (O/D LED), Variable High-Pass Filter (30Hz – 150Hz), Variable Voicing (Flat to Vintage Scoop), Fully Active 4-Band EQ (+/- 12dB of Bass, Low-Mid, High-Mid, Treble) with Sweepable (variable) Low-Mid (150Hz-1800Hz) & High-Mid (300Hz-5000Hz) Frequency Controls with Deep Switch (for enhanced low-end) & Bright Switch (for enhanced top-end) and Master Volume Balanced XLR Line Out with Pre/Post, Line/Mic & Ground Lift Switches Series FX Loop Tuner Output (back panel) Mute Footswitch Jack (footswitch sold separately) Headphone Output Auxiliary Input Protection & Limit LED Indicators 2 Speakon Speaker Output Jacks Fan Cooled Gig Bag w/Strap