Versatile and packed with pro features.

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The SA450 is Markbass' standard, solid-state, analog powered professional head. Versatile and packed with plenty of features as listed below, it provides more EQ control than its sibling the Little Mark II, a line out level control and pre/post EQ switch. Add this bass amp head to your rig and listen to the difference it makes in your overall stage presence.

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Markbass SA450 500W Bass Head Features:

Soild state analog power preamp
Provides 500W to a 4 ohm cab, 300W to a 8 ohm cab
1/4" input jack works with both passive and active basses
Gain and Master volume controls
Clip warning light
Line out volume control knob
EQ includes controls for Low, Mid Frequency Low, High Frequency Low, and High
High and Low level controls for deciding how much frequency area will be affected by the EQ
VLE (Vintage Loudspeaker Emulator) and VPF (Variable Pre-shape Filter) filters
Neutrik Speakon Combo out jacks for use with 1/4" or Speakon speaker cables
Balanced XLR out
Pre EQ/Post EQ switch to determine whether the output signal is effected by the EQ settings or not
Ground lift switch to eliminate hum
Tuner out sends unbalanced signal sent to a tuner, amp or recording equipment not needing a balanced signal
Send and Return Effect ensures main signal continues even if something dies in your effects chain
Dual-sided fiberglass PC boards with lined perforations for high-quality solder connections
Surface-mount components are silicon-sealed to isolate vibrations
Computer-grade pre-assembled ribbon connector cable harnesses and ribbons for noise-free operation
Integrated threaded posts for easy assembly/disassembly and added durability
Rigid 2mm thick aluminium chassis for a long-lasting finish

Markbass SA450 500W Bass Head Specifications:

Power
Input impedance: 500 Kohm, max. voltage: 9 Vpp
Effect return impedance: 33 Kohm, max. voltage: 12 Vpp
Output Power: 300W RMS at 8 ohms, 500W RMS at 4 ohms
Voltage is factory preset for the U.S.

Controls
GAIN: —80dB to +25dB range
LINE OUT: Level control on front panel
PRE/POST EQ (for line out): Switch on rear panel
GROUND LIFT: Switch on rear panel
MASTER VOLUME

Equalization
LOW
Center frequency: 40Hz; level ±16dB
LOW-MID
Semi-parametric: frequency 100—800Hz, level ±16dB
HIGH-MID
Semi-parametric: frequency 700Hz — 6kHz, level ±16dB
HIGH
10kHz shelf; level ±16dB
VPF (Variable Pre-shape Filter)
Center frequency: 380Hz (cut)
VLE (Vintage Loudspeaker Emulator)
250Hz — 20kHz cut

Outputs
EFFECT SEND
Unbalanced, max. voltage 12 Vpp (pre-EQ)
TUNER OUT
Unbalanced, max. voltage 2 Vpp
LINE OUT
Balanced XLR, max. voltage 25 Vpp
SPEAKER OUT
Speakon, 1/4"

Other
Dimensions: 14.5"(W) x 3.39"(H) x 11.9"(D)
2U tall
19"(W) with rack ears
Weight: 7.5lbs.