RS-900 Classic

2-channel Power Amplifier

features

class-A full complementary front end

modular construction

stereo, parallel mono & bridged mono modes

forced front to back air-cooling

XLR and barrier strip inputs

fuse-less short circuit protection

perfect overload and square wave response

turn-on delay

5-way binding post for speakers

strategically located transformer to reduce front-panel torsion

The PULZ RS-900 Classic two-channel power amplifier from the Classic range of products is specially designed as a costeffective solution for today’s competitive multiplex environments. The robust bipolar

output circuit 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 price to performance ratio combined with sturdy construction makes the PULZ RS-900 Classic an investment that guarantees many years of trouble-free service.

technical

Output power (per channel) 465 watts @ 4W, 290 watts @ 8W (both channels driven at 1KHz, < 0.1% THD)

760 watts @ 8W, bridged mono; 930 watts @ 4W, bridged mono

Continuous power425 watts @ 4W; 270 watts @ 8W (both channels driven at 20Hz-20KHz, 0.1% THD)

700 watts @ 8W, bridged mono; 900 watts @ 4W, bridged mono

Frequency response20 Hz-20 KHz, ± 0.2 dB

8 Hz-100 KHz, ± 3.0 dB

Total harmonic distortion0.008%, 1 KHz, 8W; 0.005%, 100 Hz, 8W; 0.03%, 20Hz-20KHz, 8W (at rated power)

Inter modulation distortion<0.013% SMPTE, <0.01% IHF (at rated power, 8W)

Signal-to-noise ratio<95dB A-weighted, below rated power (20 Hz-20 KHz)

Damping factor> 150 into 8W <1KHz

Crosstalk-90 dB (20 Hz-1 KHz)

Full power input sensitivity1.7 V rms

Bandwidth100 KHz

Slew rate50 V/µs

Input impedance20 KW, balanced

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

Power230-240 VAC, 50-60 Hz

Dimensions L 19” x H 5.25” x D 16.5”

Net weight28.0 Kg

Packed weight30.0 Kg approx.