The “Dual-Tone” 1×12 combo amplifier is the undeniable rock star of the mid 60’s Supro amplifier lineup. Vintage 1624T amps have been sought-after for decades because they embody the most desirable aspects of the Supro sound. As the Dual-Tone’s volume knob is turned beyond noon, a fat and compressed clean tone evolves into an immediately recognizable grind that remains articulate and listenable even when turned up to full blast.

This 24-Watt, 1×12 tube combo can easily be driven to glorious saturation at a manageable gigging volume while retaining exceptional clarity and bandwidth, at any level of gain. This amp’s unique mojo is largely defined by the use of 6973 power tubes in the amplifier’s output stage. These robust 9-pin tubes were employed extensively in the mid- and low-power Supro amps made 50 years ago. 6973 tubes look like EL84s but they deliver a distinctly American voice that has been missing from the world of tube amplifiers for far too long.

The Dual-Tone’s linkable channels each sport volume and tone controls as well as a shared tremolo circuit. Plugging into IN 1+2 links both preamp channels in parallel for double the input signal and double the gain. This clever topology lets you hit the power amp as hard as necessary and even allows “channel switching” in its purest form, using a simple A/B switch.

The 1964 reissue Supro Dual-Tone’s vintage-correct, lightweight cabinet—combined with our breathtaking custom 12” Supro speaker—kicks out surprisingly plump low end with all the detailed midrange and high end articulation that defines the Supro tone players have been chasing for decades. Loud enough to gig with a band, yet easy to haul around town, the Supro Dual-Tone is the perfect small club and recording amplifier. This amp has the long lost tone, so Ramble On down to a Supro dealer near you and Bring It on Home.

  • All-tube Supro circuit
  • 2 Channels with Parallel Link
  • Tube Tremolo with footswitch jack
  • 24 Watts 6973 power tubes
  • 1 x 12″ Supro DT12 speaker
  • 4x 12AX7EH
  • 2x 6973
  • 23 5/8” x 16” x 10 1/2” – 60 x 41 x 27 cm
  • 42 lbs – 19 kg
  • Blue Rhino Hide tolex
  • Assembled in NY, USA
  • MPN : 1624T-U 
  • UPC : 181118090036

Audio MIDI Plus is committed to deliver the best experience for our customers. If for some reason you are not satisfied with your purchase, you may return it for a refund of the purchase price, an exchange or a store credit within 30 days from the ship date. 

In the unlikely event that you received a defective product, a wrong product, or damaged product, Audio MIDI Plus will replace it at no charge of any additional shipping cost. We will send you a prepaid label to return the item, and ship you a replacement. You will not incur any shipping charges. Please notify us of any of damaged, defective or misshipped products within 14 days.

After 30 days, you may request manufacturer warranty if your item malfunctions. Unless otherwise specified, Audio MIDI Plus is an authorized dealer for all the brands we represent.

How to request a return:
Please email us or call us to obtain a RMA number. All returns must be in a re-sellable condition and include all packing materials, accessories and paperwork. We may apply a restocking fee if the returned products fall into these following categories:

  • Missing original packaging, manuals, accessories, or any contents that was included
  • RMA number was not associated with the return
  • Items not in original like new condition

Please send all returns to:
Audio MIDI Plus Returns
3725 Saddle Drive,
Carlsbad, CA 92010

The following items are not returnable, unless received DOA, in which we will send a replacement:

  • Software
  • Electronic Delivery of Software
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  • DVD’s

Items that fall into the in mouth and in ear use category, such as mouthpieces, earphones, ear plugs, harmonicas, cannot be returned due to health regulations

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