The RB1 is a super-compact bass combo that houses a custom-designed 8" driver, but don't let that fool you - it delivers a powerful 15W RMS of solid bass tone. The preamp features a powerful three-way EQ bands, a plate compressor and an internal limiter along with a mini jack headphone jack and an input mini jack allowing connection of a media player for jamming along with your favorite tracks The RB1 features a two position cabinet design, so it can be used as a conventional stage combo or in kickback position as a monitor.The RB1 is a super compact bass combo that houses a custom designed 8" driver, but don't let that fool you - it delivers a solid 15 watts RMS bass tone. The preamp features a powerful three-band EQ, a built-in compressor. and an internal limiter along with a mini jack headphone jack and mini jack input that allows connection of a media player for jamming along with your favorite tracks. The RB1 features a two-position cabinet design, so it can be used as a conventional stage combo or in a 'pull back' position like a monitor..PZA MORE SPECS