FS: Absolute MINT NuPrime STA 9 amps (2)...


Well-Known Member
Apr 27, 2016
Central Florida
I'm looking to see if there's any interest here on the forum for anyone wanting to purchase my twin STA 9 amps in silver.

They're in mint (like new) shape, are lightly used, running bridged mode powering a pair of small Sonus faber bookshelf speakers in an apartment, so you know these guys are just idling the whole time.

They're excellent sounding amps, but I may be taking my system in a different direction soon, so these would have to go.

Anyway, I've only had them a few months, have all of the original boxes, manuals, etc, etc. I'm looking for $1200 for the pair, plus insured shipping to the lower 48 states.

Please reply here and/or PM me. Many thanks in advance!


Last edited:
Still here. ;)
And some specs...

  • Inputs:
    • RCA: Un-Balanced input x 1
    • XLR: Balanced input x 1
  • Outputs:
    • Stereo Speaker Out x 1 or
    • Mono Speaker Out x 1
  • Power: 2 X 120W / 1 X 290W @ 8 & 4 Ohms
  • Peak Output Power: 2 X 280W / 1 X 320W @ 8 & 4 Ohms
  • Input Impedance: 47k Ohms
  • Input sensitivity: 232.8mV, 1W @ 8 Ohms; 1.4V to rated power
  • Gain: x 22
  • Signal to Noise Ratio: < -95dB at 1W, 10W, 100W
  • THD+N: 0.02% (Stereo) / 0.01% (Mono)
  • Frequency Response: 10Hz to 50kHz
  • Worldwide AC voltage: (115 VAC / 230 VAC) with Voltage Select Switch
  • AC Fuse: Slow-blow, 3A, 250VAC
  • Dimension: 235 mm W x 281 mm D x 55 mm H (including feet)
  • Weight: 4.75 kg
  • Color: Black or Silver
  • In a 110V outlet, the idle-power consumption is below 14W. In a 230V outlet, the idle-power consumption is below 16W.
New lower price of $1100.
Nice system! Was curious if you've ever had full range towers in the room and how that compared to the Sonus Faber's with dual subs. Looks like it sounds wonderful. Was curious if you're getting good punch and midbass and how the system sounds overall. I may also be interested in the ST-9s. Thanks.

Yes, I've had fullrange towers in this room before (though with totally different equipment). I feel I get much better results with the Sonus faber bookshelf speakers and dual subs.

With the towers, I always placed them for best stereo imaging and sound staging, so bass performance suffered. With the Sonus' and JL subs, I get to have best of both worlds, the bookshelves in the best position for stereo imaging and staging, the subs in the best spot for bass reproduction.

The STA 9 amps have no problem at all keeping a tight grip on the speakers, especially when bridged. Extremely great sounding little amps. They definitely perform way above their price point.
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