ISP Technologies Stealth Ultra-Lite Amplifier

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Product Overview

The STEALTH ULTRA-LITE™ offers efficiency close to that of a Class D amplifier but has the great tone and overdrive clipping characteristics of a Class A/B analog power amplifier. The STEALTH ULTRA-LITE™ weighs less than one pound, but packs the performance of a true 90 watt guitar preamp / power amplifier all in a package size of 1.73 inches tall by 4 inches deep and only 4.9 inches wide.

Drop the STEALTH ULTRA-LITE™ on your pedal board and end up with a true compact rig with enough power to play with a drummer on stage. The STEALTH ULTRA-LITE™ will deliver a true 90 watts RMS 180 watts peak into a 4 ohm load (60 watts RMS 120 watt peak into 8 ohms) and comes with a universal switch-mode power adapter that will operate on any line voltage between 100 and 240 volts worldwide.

Tour with confidence knowing that the STEALTH ULTRA-LITE™ will operate anywhere in the world, on any AC mains, with the included universal power supply. ISP has also designed in Pop free operation with protection against shorts, open circuits and thermal runaway.

  • Single channel 1 x 180 watts Peak, 90 watts RMS output power
  • Built in front end preamplifier with 12dB gain, +/-10dB Bass and Treble
  • Smallest lightest high power amplifier for the guitarist available 1.73 X 4 X 4.9 inches .9 lbs
  • 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 turn on operation for POP free turn on and turn off
Input Impedance: 470k

Output Power:
4Ω @ 10% THD = 180WPEAK = 90WRMS
4Ω @ 1% THD = 160WPEAK = 80WRMS
8Ω @ 10% THD = 120WPEAK = 60WRMS
8Ω @ 1% THD = 100WPEAK= 50WRMS
16Ω @ 10% THD = 62PEAK = 31WRMS

Input Sensitivity/Max Output: -10dBu / .25vrms
Maximum Input Signal: +17dBu
Voltage Gain: 42dB
Noise Floor: -80dBu
Dynamic Range: 104db A WTD
Distortion: @10dBu output=.02% Full Output=.1%
Frequency Response: 20Hz – 20KHz = +0 / -.5dB
Input Power: 80mA @idle 3A full power @4Ω
Dimensions: 4.9” W x 1.75” H x 4” D
Weight: .95 LBS
Protection: Auto shutdown / Output shorts or low load impedance. Protected for open loads.

Note: 0dbu = .775 vrms


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