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Albion Amplification ABH Series ABH300H 300W Tube Bass Amp Head  

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Product #H79139

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  • Albion Amplification

    A 300W hybrid bass head with an array of switchable options for the performing bassist.

    The Albion ABH300H amplifier circuit utilizes a combination of technologies to provide optimum performance required for high class consistent playing night after night. Both amplifiers use the same circuitry, only differing in the power supply transformer values to provide the required power output.

    The main preamplifier and tone forming circuit section uses 2 double triode low noise 7025/12AX7/ECC83 valves (tubes) including the Bass and Treble EQ circuits, running from a 380 volt HT power supply and DC heaters. The output from the valve preamp circuit then passes through the Mid circuit, which is separate from the preamp. This mid circuit uses a very special high voltage operational amplifier circuit in order to pass the valve tone from the preamp to the power amp without adding extra unwanted colouration. All it does is change the mid frequency spectrum.

    The power amplifier stage is an extremely rugged but very musical bipolar transistor design that delivers the wide range response required for the punch and wide bandwidth required by today’s bass players. The power stage is pretty much OVER-engineered to maintain night after night of high level bass guitar playing without compromise. As mentioned above, the power stage is very musical, it has a very sweet tone and handles being pushed into distortion (which is a very big test on any bass product!) with ease and without any ultra harsh unpleasantness – it really delivers the goods with what is a superb sound level (SPL) for 200 and 300 watt bass rigs. To keep things cool, the power amp is thermostatically fan cooled on a very large heatsink – another example of our over-engineering. As with the other power items the power transformer is also larger than what other manufacturers put in their comparative bass amps to help deliver the lowest notes. It also helps keep things very cool (except for the preamp valves of course).

    The ABH300H amplifier have a pretty impressive array of switchable options that make for a very versatile bass system, covering gain variations for both active and passive guitars, external Tuner connection with panel and footswitchable muting for silent tuning, plus some very neat preset tone contouring options.

    The EQ system of Bass, Middle, and Treble may seem pretty simple, but each control has a 3-position rotary switch selecting different frequency bands that give a very wide range of EQ options.

    The signal handling capabilities of ABH bass amps puts you in control of the dynamics that you want - be it from clean, warm Jazz, through to overloaded Rock bass styles. Albion bass amps and speaker systems are designed to deliver and handle them all.

    Features
    • Tone forming circuit with 2 double triode low noise tubes
    • Special high voltage operational amplifier circuit for tube tone integrity
    • OVER-engineered to for extended reliability night after night
    • An impressive array of switchable options
    • 3-position rotary switch on each tone control

    Satisfy your musical ideas with this well-designed head. Order today.

     

    ABH Series ABH300H 300W Tube Bass Amp Head Specifications:

    • 200 watts RMS output into 8 ohm impedance loudspeaker load. 300 watts RMS output into 4 ohm impedance loudspeaker load.
    • 2 x 7025/12AX7/ECC83 double triode small signal valves (tubes)
    • Thermostatically Fan and passive cooled BJT power output stage
    • Dimensions: 21-7/8" (W) x 11-1/4" (H) x 5-3/4" (D)
    • Weight: 29.1 lb.
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