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“Rowland gear was always characterized by qualities of design and build that were robust and uncompromising, with the highest level of fit and finish, and the best switchgear and connection hardware.”
Stereophile Magazine
OVERVIEW
Great condition trade-in Jeff Rowland Research Model 5 Stereo Amplifier in silver finish. Amp comes with power cord and printed manual.
Amp does not come in original box, but will be professionally packed for shipping.
Amp is rated 8/10 for cosmetic wear consistent with age and use.
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 (operating 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, 8 ohms / 300 watts RMS continuous, 4 ohms / 475 watts RMS continuous, 2 ohms
- Power Bandwidth: 0.15 Hz to 250 kHz, -3 dB
- Slew Rate: 75 volts per microsecond
- THD and Noise Less than .03%, 1 kHz, 8 ohms, 20 watts / Less than .075%, 1 kHz, 8 ohms, 60 watts
- Damping Factor: Greater than 175, 20 Hz to 20 kHz, 8 ohms / Greater than 60, 100 kHz, 8 ohms
- Output Current: 40 amps peak, continuous / 90 amps peak, 0.1 ohm, 20 msec, 1 kHz
- Overall Gain: Selectable: 20, 26, 29.5, 32 dB
- Sensitivity: 36 mV, 1 watt, 8 ohms
- Input Impedance Selectable: 100k, 20k, 600 ohms
- Common Mode Rejection Ratio: Greater than 90 dB
- Bridged Mono Output Power: 550 watts RMS continuous, 8 ohms / 800 watts RMS continuous, 4 ohms / 1000 watts RMS continuous, 2 ohms
- Power Requirements: 100V-240V
- Dimensions (WHD): 19” x 8.75” x 24”
- Weight: 147 pounds, shipping weight
ADDITIONAL INFORMATION
Please call 734.662.3595 and ask for Richard if you have any questions about this product.
We make every effort to update our ads quickly when inventory fluctuates, but we encourage you to call and check product availability, as we are also a brick and mortar store.
