Tube warmth and analog clarity.

The Markbass TA503 has a premium tube preamp that gives this bass amp head the advantage of tube warmth and analog clarity simultaneously. The TA503 bass head boasts a flexible EQ with 4-band semi-parametric tone control and Markbass' signature VLE (Vintage Loudspeaker Emulator) and VPF (Variable Pre-shape Filter) filters. 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.

Markbass TA503 500W Bass Amp Head 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

Enhance your sound with this top-notch preamp head. Order one today!

Markbass 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
• Power Requirement: 100/120V; 230V; 240V; 50/60Hz
  
  Controls
• 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
  
  Equalization
• 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
  
  Outputs
• 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"
  
  Other
• 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)

Markbass TA503 500W Bass Amp Head

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Average of 4 User Ratings

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Customer Reviews

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Value

this is what a tube head sounds like

Posted by Dangerous New Addiction from Cleveland Ohio on Mar 14, 2009

Experience w/product: I have used it

Reviewer's Background: Active Musician, Recording Artist

Reviewer's Play Style: Rock ,Blues,Progressive

I got to play one of these at an open jam and it was an AMAZING rig it was paired with a 4x10 and 1x15. The controls were a bit different to understand at first Because im used to Ampeg gear but once I got that I had to work with the tubes to EQ this bad boy it was easy. So in short this a tone monster of an amp not much power but not ment to sound like a 1000 watt amp it dosent throw hard but if you buy one of these amps you already know to mic it and run thru the PA .

Overall

Quality

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best sounding amp in the market

Posted by frank paola from new york city on Oct 23, 2008

Experience w/product: I have used it

Reviewer's Background: active musician

Reviewer's Play Style: rock,bues,latin

The markbass ta503 is the best sounding amp in the market, with the tube preamp section, is warm/punchy/powerhouse monster. And lite on your back,you must play it and you'll know what I'm talking about.

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Features

Value

Oh My God it intense

Posted by Anonymous Musician on Jul 14, 2008

Experience w/product: I own it

Reviewer's Background: Active Musician

Reviewer's Play Style: Funk, Rock, Alternative

Well I bought this amp head like a week ago. I was surprised by the weight of the head itself it wasn't that heavy for what it looks like. But besides that this head produces such a rich and punchy sound that I have only heard on recordings of music. Never live! But the head is Amazing. It has a ton of features that is a must head for any bass player. One of the best things I have bought for my bass with out a doubt.

Overall

Quality

Features

Value

Best sounding if it's category

Posted by Pierre from Cary, NC on Jun 11, 2008

Experience w/product: I own it

Reviewer's Background: amater

Reviewer's Play Style: Classic rock, Blues, Funk, Indy

Very warm sound and very punchy, very natural and liquid mids, highs are really high end and lows deliver. I love the 4 band semi parametric EQ, and the VLE. MarkBass are the most funky amp I've ever tried. I love the fact that the mids are so nice that you can cut the highs and enjoy this warm old school sound without ever sounding muddy. It's very powerful and only 8 pounds. Good work. Prefer this ofer any GK or Eden.

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Markbass TA503 500W Bass Amp Head

Read 4 Reviews

Markbass TA503 500W Bass Amp Head

Read 4 Reviews