Professional power amplifier for pedalboards!

Smart Design and High Performance Standards of Stealth Ultra Lite

STEALTH ULTRA-LITE™ is the first ultra-compact high-performance guitar amplifier with a built-in preamp. It allows direct interfacing with pedal effects from the pedalboard. It delivers 180W peak output and 90W RMS output at 4 Ohms. The Stealth ULTRA LITE is based on ISP Technologies' patented Dynamic Adaptive Amplifier Technology and offers nearly 60 Volt peak-to-peak output signal from a 19V DC power supply thanks to energy storage technology. The built-in preamp is designed to allow instrument-level pedals to drive the STEALTH ULTRA-LITE to maximum power while still providing tone curve adjustment capacity of +/- 10dB for bass and treble control. You get up to 47dB of composite signal gain. The STEALTH ULTRA-LITE interfaces with professional +4dB rack-mounted signal levelers.

ISP Technologies Stealth ULTRA-LITE at a glance:

• Single Channel 90 Watts RMS (180 Peak)
• Built-in front-end preamplifier with 12dB gain, +/-10dB Bass and Treble
• Single channel 1x 180 watts Peak, 90 watts RMS output power
• Smallest and lightest high power amplifier for guitarists available: 1.73 x 4 x 4.9 inches, 0.9 lbs
• External 19VDC 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 off

• Input Impedance: 470k

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

• 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