Ashdown BTA200 All Valve Bass Head

<h2>The Big Tube Head 200</h2> <p>Combining straightforward rotary tone controls with two pairs of additional EQ sliders for the more sonically sophisticated, Ashdown&rsquo;s ABM preamp became an instant classic when it hit the bass world over a decade ago.</p> <h3>Variable Tubes or Solid State</h3> <p>The BTA 200 (Big Tube Head) partners a third-generation ABM preamp with a 200-Watt, 6 x 6550 valve output stage for ABM sophistication with bone-crushing tube power. All the ABM features are there &ndash; EQ In/Out footswitching, variable Tube/Solid-State input stages, on-board compressor and Sub Harmonic Generator, balanced DI Output with Pre/Post EQ switching, FX loop, Tuner output and more. The BTA 200 partners perfectly with a range of Ashdown US Series cabinets.<br /><br /><strong>Features:</strong></p> <ul> <li>Power Output (RMS): 200W</li> <li>Power Requirement: 230 / 115V</li> <li>Frequency Response: -3dB at 17Hz and 30kHz</li> <li>Speaker Outputs: Minimum impedance 4 Ohms</li> <li>High Instrument Input Impedance: 3.9m Ohms, input range 150mV -</li> <li>Low Instrument Input Impedance: 10k Ohms, input range 300mV -</li> <li>Line Input Impedance: 22k Ohms, input level 0dBu nominal</li> <li>Sub Output Impedance: 1k Ohms, level 0dBu Nominal</li> <li>DI Output: 600 Ohms balanced, level 0dBu nominal</li> <li>Tuner Output Impedance: 22k Ohms, level 0dBu nominal</li> <li>EQ Bass: +/-15dB @ 45Hz</li> <li>Middle: +/-15dB @ 660Hz</li> <li>Treble: +/-15dB @ 7kHz shelving</li> <li>Slider 1: +/-15dB @ 180Hz</li> <li>Slider 2: +/-15dB @ 340Hz</li> <li>Slider 3: +/-15dB @ 1.3kHz</li> <li>Slider 4: +/-15dB @ 2.6kHz</li> <li>Shape (Push Flat): +8dB @ 50Hz &amp; 4kHz, -8dB @ 400Hz, filter slope -6dB/octave</li> <li>Effects Send Impedance: 22k Ohms, level 0dBu nominal</li> <li>Effects Return Impedance: 22k Ohms, input level 0dBu Nominal</li> <li>H x W x D (mm): 362 x 610 x 300</li> <li>Weight (kg): 33</li> </ul>