Adcom GFA-555 MKII w/ Original Manual. This amplifier is in excellent pre-owned condition. While not worth mentioning, it does have a single 1-2mm mark that doesnt look like a scratch on its top. It performs flawlessly and operates as it should. It has never been modified. This is an excellent example of this renowned amplifier. General Specifications:The amplifier is a stereo amplifier with a power output of 200 watts per channel into 8 ohms. It can also be bridged to mono mode, providing a power output of 600 watts into 8 ohms. The frequency response of the amplifier is typically 20 Hz to 20 kHz (+0, -0.25 dB) at 1 watt into 8 ohms. The THD of the amplifier is less than 0.03% at rated power into 8 ohms from 20 Hz to 20 kHz. The SNR of the amplifier is typically greater than 120 dB below rated output, A-weighted. The amplifier has a damping factor greater than 400 into 8 ohms. The input sensitivity of the amplifier is 1.5 volts for rated power into 8 ohms. Input Impedance: The input impedance of the amplifier is 100 kohms. The amplifier measures approximately 19 inches wide, 7 inches high, and 13 inches deep (48.3 cm x 17.8 cm x 33 cm). Professionally packed, double boxed and promptly shipped insured with signature confirmation. We know how to ship these and it will arrive in the condition as promised. Please review our feedback and buy with confidence.

(USED) Adcom GFA-555 MKII Power AmplifierCustomer trade-in. Great shape! Tested and fully working. Includes power amp and original box.# of Channels2RMS Power (Watts Per Channel)200 x 2 @ 8, 325 x 2 @ 4Amplifier FeaturesBridgeable Check out all my items on the audiolab-outletBe sure to add me to your favorites list! PLEASE READ OUR POLICIES BELOW Payments:Payments are accepted through PAYPAL ONLY. Payments must be made within 3 days of the sale of an item. Failure to pay within 3 days may result in cancellation of the sale OR an unpaid item case opened through eBay. IF YOU HAVE QUESTIONS, PLEASE MESSAGE US BEFORE BIDDING OR PURCHASING AN ITEM. Shipping:Shipping is to the confirmed address and will not be changed after the auction has ended. *** At this time we are NOT processing any shipments internationally or outside of the Lower Contiguous 48 States. AK & HI customers please inquire if you are interested in an item listed. Additional shipping may be required to process your order. We are also unable to ship our items to PO BOXES or APO/FPO addresses unless the item is small. Please inquire if you have any of these types of addresses *** Returns:ALL RETURNS MUST HAVE A RMA# FOR RETURN PROCESSING - Please contact us to obtain an RMA # We will accept items for return with 30 days of sale. Customers wishing to return product for any reasons other than the item being defective will be subject to paying for the cost of return shipping and a restocking fee. IN THE EVENT OF DAMAGE OR THE ITEM NOT AS DESCRIBED:Please contact us directly before opening any case or return request. We want to do everything in our power to offer the best Customer Service possible.