More Views

Jeff Rowland Model 725 Mono Amplifier

Quick Overview

Jeff Rowland 725 Monoblock Amplifier

Precision machined from two single blocks of non-resonant aircraft aluminum, the Model 725 features a unique composite circuit architecture incorporating separate Class AB voltage and current gain blocks with no overall negative feedback. The Model 725 features mil-spec ceramic circuit boards, high current copper bus bars, a power supply incorporating 4-pole capacitors and power factor correction, combined to deliver a life-like grain-free musicality of breathtaking transparency.

Manufacturer's Website Jeff Rowland

Details

Jeff Rowland 725 Specifications:

 

Output Power 330 watts @ 8 ohms / 650 watts @ 4 ohms
Frequency Response 5 Hz – 350 kHz
S/N Ratio 95 dB, ref. 1.0 watt @ 8 ohm load
Output Noise < 55 µv, 20 Hz – 20 kHz, unweighted
Crosstalk > 91 dB @ 1 kHz, 74 dB @ 20 kHz
Input Impedance 40k ohms
THD + Noise 0.004% @ 1 kHz, 8 ohms
Damping Factor > 200,  20 Hz - 20 kHz
Overall Gain 27 dB
Common Mode Rejection Ratio > 90 dB, 20 Hz – 20 kHz
Absolute Phase Non-inverting Pin 2 Positive
Inputs Balanced (XLR)
Outputs 2 parallel binding posts
Power Consumption Idle 2 parallel binding posts
Power Consumption Idle 85 watts
Power Consumption Standby 1 watt
Amplifier Weight 54 lbs. / 24.5 kg (each)
Amplifier Shipping Weight 64 lbs. / 29 kg (each)
Overall Amplifier Dimensions (h/w/d) 5.75” x 15.5” x 16.25” / 146mm x 394mm x 413mm (each)

 

Please find reviews below:

theaudiobeat.com - September 2013 - by Roy Gregory
hifi-advice.com - August 2013 - by Christiaan Punter
The Absolute Sound #228 - December 2012 - by Robert Harley

The Absolute Sound " TAS Magazine Review , Product of the Year Award

http://www.theabsolutesound.com/articles/jeff-rowland-design-group-corus-linestage-and-725-monoblock-amplifier/

Image result for 2016 editors choice award the absolute sound