MarkBass LM Tube 500 - Ex demo:: Bass Direct :: For sale, Offer, UK, EU, Warwick Second Hand, used, preowned usa, Birmingham, Manchester, London


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Mark Bass LM Tube 500 -  Pre-owned model


  1. Please contact the shop to pay by  Bank Transfer or finance

  2. Pre-owned amplifier in great condition with flightcase

The LMIII now has a line out level control and new output limiting circuit for a more dynamic response, and new eq points.

On the front panel there are two inputs with separate gain controls: one 1/4" jack, and one combo jack that accepts either an XLR or a 1/4" cable. Additional features include switchable 48V phantom power for the XLR input, solid-state/tube mix control, four bands of EQ, VLE and VPF filters, line out level control, pre-post EQ switch for the XLR out (on rearpanel), and mute control (push-pull on the master knob).


  1. Input 1: impedance 500 Kohm, max. voltage 15 Vpp

  2. Input 2 (Balanced XLR/1/4" combo): balanced, impedance 500 Kohm, max. voltage 15 Vpp, phantom power 48V

  3. Effect Return: impedance 33 Kohm, max. voltage 10 Vpp


  1. Gain 1: -60 dB to +23 dB range

  2. Gain 2: -60 dB to +23 dB range

  3. Mix: mixes tube and solid state gain

  4. Master Volume: Line Out Level

  5. Ground Lift: switch on rear panel

  6. Pre/Post EQ: switch on rear panel

  7. Mute: push/pull on master knob


  1. Low: center frequency: 60 Hz; level: ±16 dB

  2. Low Mid: center frequency: 360 Hz, level: ±16 dB

  3. High Mid: center frequency: 800 Hz, level: ±16 dB

  4. High: center frequency: 5 kHz, level: ±16 dB

  5. VPF (Variable Pre-shape Filter): center frequency 380 Hz (cut)

  6. VLE (Vintage Loudspeaker Emulator): frequency range 250 Hz-20 kHz (cut)


  1. Line Out: balanced XLR, max. voltage 20 Vpp

  2. Effect Send: unbalanced, max. voltage 20 Vpp (pre-EQ)

  3. Tuner Out: unbalanced, max. voltage 2 Vpp

  4. Speaker Out: speakon/1/4" combo, 1/4"


  1. Weight: 6.55 lbs / 2.97 kg

  2. Output Power: 300W RMS @ 8 ohm, 500W RMS @ 4 ohm


Tel: 01926 886433