Summit Audio TPA-200B Dual Channel Tube Mic/Instrument Preamplifier


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Dale #:SUMM-TPA200B

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  • The Summit Audio TPA-200B is an incredibly easy to use dual channel preamplifier marrying a classic tube and transformer front end design with a more modern solid state output stage, resulting in ultra clean gain that really lets the warmth and rich harmonic detail of the tube come through. The TPA-200B allows you to set gain clean and pristine or layer tube input saturation all the way to thick harmonic distortion with all sorts of variations in between. This is the swiss army knife of mic pres! Each of the two channels has its own set of knobs that control input gain and output gain. For cleaner applications, set the input gain lower and the output gain at maximum. For more harmonics and tube distortion, simply increase the input gain while decreasing the output gain to balance the overall signal level.

    Each piece of Summit gear is meticulously crafted by hand in their shop using only the best quality components and attention to detail. Quality components and engineering know-how are the critical element to the sound and longevity of audio gear.


    • Easy operation
    • Controllable sound, continuously variable from “clean” to “overdrive”
    • Jensen input transformers
    • Line level balanced input
    • Mic level balanced input
    • Phantom power
    • Front panel Hi-Z input
    • 990 balanced output stage
    • Overload and overdrive indicators
    • Polarity reversal
    • -15dB and –25dB pads
    • Hand crafted in the USA
  • Dimensions Height:
    3.5 inches (8.89 cm)
    19 inches (48.26 cm)
    10 inches (25.40 cm)
    Weight 17 pounds (9.45 kg)
    Power Configuration Internal AC Supply
    35 watts, 115 or 230 volts, 50 or 60 Hz (Rear Switchable)
    Fuse: 0.5 Amp for 115VAC and 100VSC, 0.25 AMP for 230 VAC.
    Input Impedance Mic: 1.5kΩ
    Hi-Z: 47kΩ
    Output impedance (XLR) 120Ω

    Mic Input: +4 dB female XLR (2)
    Line Input: -10 dB 1/4" (2)
    Outputs: +4 dB male XLR (2)

    Max Input level Mic: -16dBu
    Line: 22dBu
    Hi-Z: 15dBu
    Max output level (XLR) 25dBu
    Max gain 75dBv
    Operating Measurements Equivalent input noise: -135dB average 10Hz-20kHz:
    Frequency response: 10Hz-50kHz -1dB
    Signal to noise ratio: 115dB average 10Hz-20kHz
    THD+ Noise: 0.055% -32dB in +4dB out, 1kHz
    Vacuum tubes three 12AX7A
    Warranty 3 year limited warranty
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