I sold one of my SVS subs and am going to use a marantz MA-500 mono block to power my single remaining sub. So I don't really need a two channel amp . This amp is 2 x 200watts per channel into 4 ohms , THD 0.05% , rack mount with carry handles, gold plated binding posts , thermal and output protection circuitry, bridgeable. Clipping indicator, very rugged construction ,weighs 30lbs. Perfect for driving SVS CS subs. In fact SVS used to sell this exact model amp for $319.00. Amp features a massive toroidal transformer and six 8200uf (micro farad ) capacitors.Please add $15.00 for shipping.This amp is fan cooled but I have performed the modification and the fan is virtually silent now.Any questions email me at [email protected] You will not find an amp this quality for $179.00. Amp is 7 months old . I have original box and manual. I accept money orders and paypal.