I am selling a great Acoustic amp that has a ton of features and extras. It can be used as an Acoustic Amp, Organ and Keyboards, Harmonica and more. The amplifier box can be taken out of outer casing of the amp and hooked up to a speaker cab using an external cable to get up to 400 watts of power. It's like having 2 amps in one. I bought it about a month ago, but for reasons beyond my control, it didn't work out, so I'm selling it. It's in excellent condition and works great. Below are most of the features and specs. Too many to list everything. I will throw in the dust cover and a thick padded gig bag with straps. This amp new, went for around $1800.00 Cash and Carry only, no shipping. (( I would be open to trade for a Gibson Songwriter, etc.)). Feel free to ask any questions. You can actually Google the model and get most of the manufacturers information. ............................................................................ Used Acoustic Image Corus Series III model 512 GA amplifier. This amp is in excellent condition, fully functional. The Acoustic Image Corus Series III model 512 GA amplifier is a two-channel amp suitable for jazz guitarists, acoustic, keyboard and Harmonica players among other applications. The 512 GA is an extremely lightweight and portable. With three speakers (woofer, midrange driver, and tweeter) ranging from 10" to 1" in size, this amp is purposefully engineered to capture a broad tonal spectrum, projecting sound from both the front and bottom of the curved cabinet for a very dimensional sound. With dedicated EQ for each channel, XLR and 1/4" inputs, and built-in effects, the 512 GA is designed as a singular solution to your gigging needs. Features include: • Three-Way Sealed Speaker System • 10 Inch Down firing Woofer • 5 Inch Midrange Driver • 1 Inch Tweeter (with On/Off Switch) • Lightweight (20 lbs) Molded Polymer Enclosure • Three band EQ Preamp Section per channel • Combo Jack Input(XLR or 1/4 Inch) • Phantom Power on XLR Input • Input and Master Level Controls • Effects Loop with Return Level Control per channel • Switchable Notch/Low Cut Filter • Balanced Direct Out with Ground Lift • Mute Switch and Pre/Post EQ for Direct Out • 400 Watt Switch Mode Amplifier • Switchable Dual Voltage operation(115/230VAC) Overview Acoustic Image - Corus (400W) 512 GA Series III Combo Amplifier Designed for guitar and other higher voiced instruments (but still preferred by some bassists), Three-Way Sealed Speaker System 10" Down firing Woofer, 5" Midrange Driver, 1" Tweeter (with On/Off Switch), Lightweight (20 lbs) Molded Polymer Enclosure, Three band EQ Preamp Section per channel, Combo Jack Input(XLR or 1/4"), Phantom Power on XLR Input, Input and Master Level Controls, Effects Loop with Return Level Control per channel, Switchable Notch/Low Cut Filter, Balanced Direct Out with Ground Lift, Mute Switch and Pre/Post EQ for Direct Out, 400 Watt Switch Mode Amplifier, Switchable Dual Voltage operation(115/230VAC. Technical Specifications SYSTEM Frequency Response - 50 Hz - 20 kHz (60 -16 kHz +/- 3dB) Max SPL - > 112 dB at 1 meter AC Power - 115V/50Hz, 230V/50Hz, switchable (Japan version 100V, 50/60Hz only) Size - 12" H x 15" W x 13" D Weight - 20 pounds PREAMP Mic input - 600 ohm balanced, XLR connector Phantom power - 38 volts, on/off switch w/LED indicator Instrument input - 1 Megohm impedance, 1/4" jack Direct out - + 4dB, balanced, XLR connector, ground lift, pre/post EQ selector Effects loop - Parallel type with return level control Bass control - Shelving type, +/- 15dB @ 60 Hz Mid control - +/- 15 dB @ 650 Hz Treble control - Shelving type, +/- 25dB @ 10 kHz Notch filter - > -18dB sweepable from 30 to 800 Hz Low cut filter - -12 dB / octave, sweepable from 30 to 800 Hz EFFECTS Type - Digital with 6 presets and level control Program presets - 3 reverb (hall, room, plate), delay, ambient chorus, flange POWER AMP Topology - Class D, (PWM) Switching Frequency - 200 kHz Output Power - > 400 Watts (8 ohm), > 500 Watts with 4-ohm Extension cabinet External Speaker Output - Neutrik Speakon type (pole 1), 4 ohm minimum SPEAKER COMPONENTS Woofer - 10-inch, down firing Mid-Range - 5-inch, forward firing Tweeter - 1-inch, forward firing with on/off switch Crossover - Passive, alignment corrected. (( I would be open to trade for a Gibson Songwriter, Etc.)) Thanks for looking.