Jeff Rowland Model 3 MONOBLOCKS

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To see other items that we have available for sale, used or new, please visit www.blackbirdaudio.com or call us at 619-449-2787

Up for sale is this super clean pair of Rowland Research Model 3 mono amplifiers.

We have the original wooden crates, owner's manual and stock power cables and are offering FREE US shipping at our asking price.

Model 3 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.

Model 3 Technical Specifications

Output power
100 watts RMS continuous, 8 ohms
200 watts RMS continuous, 4 ohms
320 watts RMS continuous, 2 ohms

Power Bandwidth
0.15 Hz to 175 kHz, -3 dB

Slew Rate
45 volts per microsecond

THD and Noise
Less than .03%, 1 kHz, 8 ohms, 20 watts
Less than .08%, 1 kHz, 8 ohms, 100 watts

Damping Factor
Greater than 120, 20 Hz to 20 kHz, 8 ohms
Greater than 80, 100 kHz, 8 ohms

Output Current
32 amps peak, continuous
80 amps peak, 0.1 ohm, 20 msec, 1 kHz

Overall Gain
Selectable: 20, 26, 29.5, 32 dB

Sensitivity
136 mV, 1 watt, 8 ohms

Input Impedance
Selectable: 100k, 20k, 600 ohms

Power Requirements
100V-240V

Dimensions
19 in. W x 8.75 in. H x 24 in. D

We’re factory authorized dealers for many items such as Harmonic Resolution Systems, Nitty Gritty, Oyaide and Sound Mechanics to name a few. All of which will increase your enjoyment of the components you already own. If you don’t have a local dealer, let us know and we’ll do what we can to get you the right item for your needs.  Our pricing is fair and firm. 

Buy with confidence from a dealer that welcomes your quality trade-ins and that will work to insure your satisfaction with your purchases. Visa, MasterCard, American Express, and PayPal are equally welcome.  Sales in California are subject to state sales tax