Pulz RS-900 Classic 2-Channel Power Amplifier

  • Product Code: VC2033
  • Pulz RS-900 Classic 2-Channel Power Amplifier

The Pulz RS-900 Classic two-channel power amplifier from the Classic range is a robust bipolar output circuit which combines clean power with superb dynamics and can accurately drive a variety of speaker systems, in both active and passive modes.

The power supply consists of a heavy-duty high current toroidal transformer and large capacitor banks that deliver continuous power without hiccups when driving low impedance speakers. The high-power bipolar devices and the forced air-cooling ensure stable operation in typical projection boots. The topology consists largely of discrete components for long-term reliability. The modular construction facilitates field serviceability. The front panel features signal presence, clipping, protect and thermal status indicators. The amplifier is fully protected against internal and external malfunctions. The RS-900 Classic is housed in a heavy-duty 3U rack mountable chassis. The front to back forced air-cooling facilitates direct stacking, saving valuable rack space.

The exceptional sturdy construction makes the Pulz RS-900 Classic an investment that guarantees many years of trouble-free service.


  • Class-A full complementary front end.
  •  Modular construction.
  • Stereo, parallel mono & bridged mono modes.
  • Forced front to back air-cooling.
  • Fuse-less short circuit protection.
  • Perfect overload and square wave response.
  • Turn-on delay.
  • Strategically located transformer to reduce front-panel torsion.
Frequency Response 20 Hz-20 KHz, ± 0.2 dB,8 Hz-100 KHz, ± 3.0 dB
Signal To Noise Ratio <95dB A-weighted, below rated power (20 Hz-20 KHz)
Intermodulation Distortion <0.013% SMPTE, <0.01% IHF (at rated power, 8Ω)
Total harmonic distortion 0.008%, 1 KHz, 8Ω; 0.005%, 100 Hz, 8Ω; 0.03%, 20Hz-20KHz, 8Ω (at rated power)
Input Impedance 20 KΩ, balanced
Slew rate 50 V/micro s
Damping Factor > 150 into 8Ω <1KHz
Crosstalk -90 dB (20 Hz-1 KHz)
Full power input sensitivity 1.7 V rms
Amplifier protection Fuseless short-circuit protection, ultrasonic and RF protection, thermal protection
Load protection Turn-on delay, DC fault protection, ultrasonic limiting
Cooling Forced air
Bandwidth 100 KHz
Power Output 270 W @ 8 Ω, 425 W @ 4 Ω, 700W @ 8 Ω bridge, 900 W @ 4 Ω bridge, (20Hz- 20 KHz,< 0.1 % THD)
Power Requirements 230-240 VAC, 50-60 Hz
Dimensions & Packaging
Dimensions (H X W X D) L 19" x H 5.25" x D 16.5"
Net Weight 28.0 Kg
Packed Weight 30.0 Kg approx.
Shipping dimensions 25 “ X 22" X 7"