Mark Bass LMK 58R 500W 2-Channel Solid State Bass Amp Head

Two Independent Channels for Two Basses or Two Distinct Sounds

The Mark Bass LMK 58R is a 500W two-channel bass amp head designed for players who need more control from a single rig. Each channel has its own gain, four-band EQ and Flat/Scooped filter, so you can connect two basses with separate settings or set up contrasting sounds for one instrument. The channels can also be combined when you want both signal paths working together.

Each EQ provides ±16 dB adjustment at 68 Hz, 360 Hz, 800 Hz and 10 kHz. Mark Bass’s bi-band limiter is designed to retain a quick, punchy attack at higher volumes while allowing the top end to respond more naturally, while the MPT power amp delivers 500W RMS at 4 ohms or 300W RMS at 8 ohms.

Most connections and controls sit on the front panel, including the balanced XLR line output, ground lift and line-out level. The LMK 58R measures just 276 mm (10.87”) wide, 256 mm (10.08”) deep and 83 mm (3.27”) high, weighing just 2 kg (4.40 lb).

At Riffs & Licks Music, we think this bass amp head makes sense for players using multiple instruments or sounds who want genuinely independent channel control without carrying a large amplifier.

Features / Specifications