The Little Mark Tube gives the warmth and richness of a tube preamp, or the clean attack of a solid state preamp… or a mix of both! On the front panel there are also two inputs with separate gain controls: one 1/4” jack, and one combo jack that accepts either a XLR or 1/4” cable. Additional features include switchable 48V phantom power for the XLR input, solid-state/tube mix control, four bands of equalization, VLE and VPF filters, line out level control, pre-post EQ switch for the XLR out (on rear panel), and mute control (push-pull on the master knob).

Technical Features
INPUTS    

    INPUT 1: impedance 500 Kohm, max. voltage 15 Vpp
    INPUT 2: (Balanced XLR/1/4″ combo) with Phantom Power
    BALANCED: impedance 500 Kohm, max. voltage 15 Vpp, phantom power 48V
    EFFECT RETURN: impedance 33 Kohm, max. voltage 10 Vpp

CONTROLS    

    GAIN 1: -60 dB to +23 dB range
    GAIN 2: -60 dB to +23 dB range
    MIX: mixes tube and solid state gain
    MASTER VOLUME
    LINE OUT LEVEL
    GROUND LIFT (switch on rear panel)
    PRE/POST EQ  (switch on rear panel)
    MUTE (push/pull on master knob)
    PHANTOM POWER switch (on INPUT 2 / Balanced)

EQUALIZATION    

    LOW: center frequency 40 Hz; level: ±16 dB
    LOW MID: center frequency 360 Hz, level: ±16 dB
    HIGH MID: center frequency 800 Hz, level: ±16 dB
    HIGH: center frequency 10 kHz, level: ±16 dB
    VPF (Variable Pre-shape Filter) center frequency 380 Hz
    VLE (Vintage Loudspeaker Emulator) frequency range 250 Hz-20 kHz

OUTPUTS    

    LINE OUT: balanced XLR, max. voltage 20 Vpp
    EFFECT SEND: unbalanced, max. voltage 20 Vpp (pre-EQ)
    TUNER OUT: unbalanced, max. voltage 2 Vpp
    SPEAKER OUT: speakon/1/4″ combo, 1/4″

OTHER    

    WEIGHT: 5.07 lbs / 2.3 Kg
    WIDTH: 10.87 in. / 27.6 cm
    DEPTH: 9.84 in. / 25 cm
    HEIGHT: 3.27 in. / 8.3 cm
    OUTPUT POWER: 500W RMS @ 4 ohms / 300W RMS @ 8 ohms
    POWER REQUIREMENT: 100/120V; 230V; 240V – 50/60Hz (Voltage is factory preset according to region of sale)

Minimum ohm load for all Markbass heads is 4 ohms.
Markbass amps/combos are manufactured to be sold and used in the country of purchase, and they are factory preset to that country’s voltage. Due to homologation issues, the voltage may not be changed.
Rack ears do not come included with this head.