Why Shop With Us?
Free Shipping
Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
Orders placed before 3 p.m. ET usually ship the same business day.
Learn More2-Year Free Warranty on Guitars
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
Contact Us for DetailsWe're Here for You
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.
Contact UsContact Us
Hablamos Español
866.226.2919
Hours:
MON - FRI 5 AM - 8 PM PT
SAT 6 AM - 6 PM PT
SUN 6 AM - 5 PM PT
TA503 500W Bass Amp Head
false falseWe're sorry-this item is unavailable.
Contact our experts for a recommendation of great alternatives. Call us at 800-449-9128.
Tube warmth and analog clarity.
Markbass gave the TA503 bass amplifier a Pre EQ/Post EQ switch to determine whether the output signal is affected by the EQ settings or not, as well as Send and Return Effect I/O to insure your main signal continues even if something along your effect chain breaks or runs out of batteries. An optional footswitch provides mute-to-tune and EQ bypass control.
Features
- Tube preamp analog bass head
- Provides 300W RMS at 8 ohms, 500W RMS at 4 ohms
- 1/4" input jack works with active or passive 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
- Mid Frequency High and Low level controls for deciding how much frequency area will be affected
- 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
TA503 500W Bass Amp Head Specifications:
Power- Passive Input impedance: 500Kohm, max. voltage: 4 Vpp
- Effect return impedance: 500Kohm, max. voltage: 10 Vpp
- Active Input impedance: 500Kohm, max. voltage: 10 Vpp
- Output Power: 300W RMS at 8 ohms, 500W RMS at 4 ohms
- Voltage is factory preset for the U.S.
- GAIN: ”80dB to +35dB 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
- FOOTSWITCH: Mute, EQ bypass
- LOW
- Center frequency: 40-300Hz; level ±16dB
- LOW-MID
- Semi-parametric: frequency 100”800Hz, level ±16dB
- HIGH-MID
- Semi-parametric: frequency 700Hz ” 6kHz, level ±16dB
- HIGH
- Semi-parametric: 1.5-10kHz shelf; level ±16dB
- VPF (Variable Pre-shape Filter)
- Center frequency: 380Hz (cut)
- VLE (Vintage Loudspeaker Emulator)
- 250Hz ” 20kHz cut
- EFFECT SEND
- Unbalanced, max. voltage 20 Vpp (pre-EQ)
- TUNER OUT
- Unbalanced, max. voltage 2 Vpp
- LINE OUT
- Balanced XLR, max. voltage 15 Vpp
- SPEAKER OUT
- Speakon, 1/4"
- Dimensions: 14.5"(W) x 3.39"(H) x 11.89"(D)
- 2U tall
- 19"(W) with rack ears
- Weight: 8.6lbs.
- Tubes: 1 x EECC81, 1 x ECC83 (JJ Electronic)
- Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
- Orders placed before 3 p.m. ET usually ship the same business day.
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.