Equipped with both a tube and solid state preamp.

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Designed in collaboration with Italian Markbass artist Faso, the TSA500 bass amp head allows you to blend a tube preamp with a solid state preamp and offers such extra features as a headphone output and an aux XLR out. It's a practical and versatile option for any bassist.

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Markbass TSA 500 Bass Amp Head Features:

300W at 8 ohms; 500W at 4 ohms
Blendable tube and solid stage preamp sections
Tuner out
4-band EQ section with semi-parametric mids
VPF (variable preshape filter)
VLE (Vintage Loudspeaker Emulator)
Headphone out with level
Tuner output
Aux XLR out with level control and pre/post switch
Footswitch jack for mute to tune

Markbass TSA 500 Bass Amp Head Specifications:

Input: Impedance 500 kOhm, max. voltage 10 Vpp
Effect Return: Impedance 22 kOhm, max. voltage 15 Vpp

Controls:
Gain (Tube Section): -80 dB to +35 dB range
Gain (Solid State): -45 dB to +28 dB range
Line Out: Level control on front panel
Pre/Post EQ (for both line outs): Switch on rear panel
Ground Lift: Switch on rear panel
Ground Lift (Aux Out): Switch on rear panel
Master Volume
Headphones Level
Foodswitch: Mute to tune

Equalization:
Low: Center frequency: 60 Hz; level: ±16 dB
Mid-Low (semi-parametric): Frequency 100–800Hz; level: ±16 dB
Mid-High (semi-parametric): Frequency 700 Hz–6 kHz; level: ±16 dB
High: Center frequency: 4.5 kHz; level: ±16 dB
VPF (Variable Pre-shape Filter): Center frequency 380 Hz (cut)
VLE (Vintage Loudspeaker Emulator): Max cut range 250 Hz–20 kHz

Output:
Line Out: Balanced XLR, max. voltage 25 Vpp
Line Out Aux: Balanced XLR, max. voltage 25 Vpp
Effects Send: Unbalanced, max. voltage 12 Vpp (pre-EQ)
Tuner Out: Unbalanced, max. voltage 25 Vpp
Speaker Out: Speakon, 1/4"
Headphone Out: 30–600 ohm, max. voltage 10 Vpp

Weight: 8 lb.
Dimensions: 14.21" W x 3.36" H x 11.9" D — 2 rack units high

Output power: 300W RMS @ 8 ohm, 500W RMS @ 4 ohm
Voltage is factory preset for the U.S.