Go to Content

ISP Technologies Stealth Pro 180-Watt Power Amplifier

A powerful, lightweight, high-performance rack-mountable power amp made with the professional guitarist in mind: the ISP Technologies Stealth Pro Power Amplifier.


Print page
You need Flash player 8+ and JavaScript enabled to view this video.
  • Images (3)
MSRP: Old Price $444.00 Discounted Price $353.00 Save : $91.00 (20%)
Order Now! This item is out of stock but will be available soon. You will not be charged until your item ships.

Protect Your Investment! ( More Info )

MSRP: Old Price $444.00 Discounted Price $353.00 Save : $91.00 (20%)
Add to Cart
The STEALTH PRO POWER AMPLIFIER is based on ISP Technologies new patent pending "Power Factor" and "Dynamic Adaptive Amplifier Technology", and is the only power amplifier technology capable of delivering this level of output power with a 19 volt DC power pack.

The ISP Technologies STEALTH PRO POWER AMPLIFIER with optional ears for rack mounting is the first True Professional, high power floor mount guitar power amplifier delivering performance on par with the best guitar amplifiers of the day. The STEALTH is based on analog class A/B amplifier design for excellent sonic and saturated clipping performance, not found with Class D power amplifiers and will exceed the stringent tone characteristics of the professional guitarist. The STEALTH PRO POWER AMPLIFIER can be used for high SPL gigs and professional stage use. The STEALTH PRO POWER AMPLIFIER is powered from an external 19 volt DC switch-mode power adapter like that used with a laptop but will deliver a TRUE 180 watts RMS continuous output power into an 8 ohm speaker cabinet and greater than 120 volts bridged output voltage swing. The STEALTH PRO POWER AMPLIFIER can also be used as a stereo 2x 80 watt amplifier @ 4 ohms. The STEALTH can power a single 4 x 12 cabinet with incredible SPL volume level output or will power two cabinets in a true stereo rig. This incredibly small package will deliver more power to a speaker than the typical 100-watt guitar amplifier, and will easily interface with any guitar floor system or high performance pedal board. The STEALTH PRO POWER AMPLIFIER with 180 watts of power weighs in at only 1.2 pounds, adding new meaning to light weight guitar systems. The STEALTH also delivers amazing efficiency and it includes internal protection against shorts, open circuits and wrong impedance loads. An internal "power on/off" output control circuit provides pop free operation for turn on and turn off. The STEALTH's small package size of 9 inches long, 4 inches wide and 2 inches tall allows it to fit with any floor mounted pedal rig.


  • Now comes with optional ears and screws for rack-mounting if desired
  • Usable in Stereo 2×80 watts or Mono Bridged 1x 180 watts
  • Smallest lightest high power amplifier for the guitarist available
  • External 19VCD switch-mode power supply included for operation from 100VAC to 240VAC
  • Class A/B amplifier circuit for analog saturation and clipping sonic performance
  • Internal protection for shorts and open circuit
  • Time Delay operation for POP free turn on / turn off

Get your ISP Technologies Stealth Pro 180-Watt Power Amplifier today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Guitar Power Amplifier
  • Rack-Mount Ears
  • Screws
  • Power Supply

Great idea, but doesn't cut the mustard.


I bought this in store and returned it the following day, and here's why: It just wasn't powerful enough to stay clean at high volumes when in competition with another guitar player, bass and hard hitting drummer playing hardcore. I had it bridged into a 16ohm 4-12 and had the level to 3oclock , Tight Metal Pro level also at around 3 o'clock and was still struggling. It just didn't have the oooommmph in the bottom end as well. I really wanted it to work, as it would have made for a great fly rig, but it just wasn't there.




Stealth Pro 180-Watt Power Amplifier

2.0 1


Inputs 2
Channels 2
Watts 180
Outputs 2
Rack Spaces 1U
Other Features Input Impedance: 500k

Output Power Mono: 4Ω[email protected]% THD/ [email protected]%

[email protected]% THD / [email protected]%

Output Power Bridged: 8Ω[email protected]% THD / [email protected]%

16Ω[email protected]% THD/ [email protected] 10%

Input Sensitivity/Max Output: -3dBu / .56vrms

Maximum Input Signal: +17dBu

Voltage Gain: 30dB Stereo / 36dB Mono Bridged

Noise Floor: -75dBu

Dynamic Range: 102db A WTD

Distortion: @10dBu output=.02% Full Output=.1%

Frequency Response: 20Hz – 20KHz = +0 / -.5dB

Input Power: 187mA @idle 7.8A full power @8Ω Bridged

Protection: Auto shutdown / Output shorts or low load impedance. Protected for open
Weight 1.2 lbs.
Dimensions 9 x 1.75 x 4 inches (WxHxD)

Recommended Accessories