Markbass TA 503

TA 503 description:

The Markbass TA503 is a premium Valve Bass Preamp Head.

The Markbass TA503 preamp boasts a flexible EQ with four-band semi-parametric tone control with signature Markbass VLE (Vintage Loudspeaker Emulator) and VPF (Variable Pre-Shape Filter) controls. Mute-to-tune and EQ bypass are footswitchable.

Markbass TA503 main features include:

• Gain: –80 dB to +35 dB range
• LINE OUT level control on front panel
• PRE/POST EQ (for line out) switch on rear panel
• GROUND LIFT switch on rear panel
• FOOTSWITCH mute; EQ bypass
• LOW EQ - semi-parametric: frequency 40–300 Hz; level ±16 dB
• LOW-MID EQ - semi-parametric: frequency 100–800 Hz, level ±16 dB
• HIGH-MID EQ - semi-parametric: frequency 700 Hz–6 kHz, level ±16 dB
• HIGH EQ - semi-parametric: frequency 1.5–10 kHz, level ±16 dB
• VPF (Variable Pre-shape Filter) center frequency 380 Hz (cut)
• VLE (Vintage Loudspeaker Emulator) 250 Hz–20 kHz cut
• OUTPUTS: EFFECT SEND, TUNER OUT, LINE OUT
• SPEAKER OUT: speakon, 1/4"
• Dimensions: 3.39 in. / 8.6 cm (2U) X 14.5" / 36.8 cm (with rack ears: 19" / 48.3 cm) X 11.89 in. / 30.2 cm
• WEIGHT 8.16 lbs / 3.7 kg
• TUBES 1 x EECC81, 1 x ECC83 (JJ Electronic)
• OUTPUT POWER 300W RMS @ 8 ohm, 500W RMS @ 4 ohm