A reliable beast of an amp head. FX loop on each channel. Pre/post gain.. Peavey Bass Mark IV Series 400BH 300-Watt Bass Head 1980s - Black. Description. A reliable beast of an amp head.. Plenty of EQ options. Rock n Roll Vintage Guitars. Year ~1980. Make Peavey. Condition Good. Color Black. Trusted for. Visit Store See Inventory. More.. The Peavey Mark IV Series 400 Bass Amp is a legendary powerhouse designed for bassists who demand precision and reliability. Known for its robust build and impressive tonal versatility, this amplifier head is a staple in both practice spaces and live performance venues.
Find many great new & used options and get the best deals for Vintage Peavey Bass Mark IV Series 400BH 300-Watt Bass Head Amp Tested Works at the best online prices at eBay! Free shipping for many products!. 1985 Peavey Mark IV bass amp - here's the one you need! The Mark IV marked the highlight of Peavey's Mk line of bass heads. It significantly improved on the classic Mk III, and was the standard bearer for years. The amps after this did little to change the design, so this became highly sought