Specimen Tweed Bassman

Please call 773.489.4830 or email info@specimenproducts.com to discuss details and make arrangements for your commission.


The SPECIMEN Tweed Bassman is a beautiful guitar amp that produces a massive wavefront of air.

As with all the tweed amps we build, the Bassman embodies authentic 1950s construction all the way down to the fiberboard motherboard for superior structural integrity, just like the original. This amp is built to last many generations.

Specimen Tweed Amplifiers are made to order.  Please allow several weeks for delivery.

  • Circuit


  • Output

    ~4o watts
    2 Matched TAD 6L6WGC Vacuum Tubes
    1 JJ GZ34/5AR4 Vacuum Tube
    2 JJ 12AX7 Vacuum Tubes
    1 EH 12AY7 Vacuum Tubes

  • Speakers

    4 Jensen C10Q / 8ohm 35 watts Nominal

  • Resistors & Capacitors

    Carbon Comp, Sprague, TAD, Orange Drop
    Extra long AC cord
    Original Style Black Fiberboard Motherboard w/ Eyelets
    Modern center taps on filaments for superior sonics and safety

The Bassman features 4, 10-inch speakers and is super touch sensitive. It is as rock solid as it is versatile and features unparalleled tone. With an output of 40 watts, this amp has plenty of headroom for bigger gigs.