Jeff Rowland Model 5

 Features

Lack of overall or nested negative feedback eliminates time domain distortion

Proprietary distortion canceling techniques minimize amplitude related distortions

Each transistor individually tested and matched for optimum operating characteristics.

Constant output impedance is maintained over the entire audio range, allowing for universal compatibility with associated equipment.

The large number of high-speed bipolar output transistors provides uncompromising reliability and eliminates the need for electronic protection circuitry

 A single voltage amplification stage utilizes field effect transistors 9operating in transconductance mode), which increases low-level signal recognition.

The absence of capacitors, inductors, fuses and protection circuitry throughout the signal path eliminates the adverse effects of these devices.

A specially designed toroidal power transformer is supported by the substantial output stage capability.

All critical circuitry is encapsulated in a thermally-conductive epoxy to ensure excellent thermal stability, mechanical integrity and to facilitate ease of service.

Specifications

Output Power:

150 watts RMS continuous  at 8 Ω

300 watts RMS continuous  at 4 Ω

475 watts RMS continuous  at 2 Ω

Power Bandwidth:  0,15 Hz to 250 kHz  _3 dB

Slew Rate:  75 volts per microsecond

Total Harmonic Distortion:  less than .03%, 1 kHz, 8 Ω, 20 watts

Signal-to-Noise Ratio:  less than 0,075%, 1 kHz, 8 Ω, 60 watts

Damping Factor:

Greater than 175 from 20 Hz to 20 kHz, at 8 Ω

Greater than 60, at 100 kHz, 8 Ω

Output Current:  40 amps peak, continuous;  90 amps peak, 0,1 Ω, 20 msec, 1 kHz

Overall gain:  selectable; 20, 26, 29.5, 32 dB

Sensitivity:  36 mV, 1 watt, 8 Ω

Input Impedance: selectable; 100 k Ω, 20 k Ω, 600 Ω

Common Mode Rejection Ratio:  greater than 90 dB

Bridged Mono Output Power:

550 watts RMS continuous  at 8 Ω

800 watts RMS continuous  at 4 Ω

1000 watts RMS continuous  at 2 Ω

Power Requirements:  100 V, 120 V, 220 V,  240 V

Dimensions (W x H x D):  483 x 222 x 610 mm (19" x 8,75" x 24")

Weight (shipping):  66,68 kg (147 lbs)