Model 201 Technology
Model 201 features an innovative fully balanced Differential Mode transformer-coupled input and output circuit, from its Neutrik XLR input to the Cardas output binding post. In conjunction with its totally sealed and non resonant chassis, the architecture is pivotal to the 201’s Elimination of ground loop noise, EMI, and its 90dB common rejection ratio. Optional RCA to XLR adapters insure invariant gain and input impedance for unbalanced sources.
Each monoblock chassis sports a dual stage regulated integrated high voltage switch mode power supply that provides nimble and clean power to an advanced ICEpower 500 ASP power conversion module, for a full 250 watts of power over 8 ohms-doubling into 4 ohms. A peak current of 35 amps, and a damping factor of 1000 control with speakers ranging from moderately sized electrostatic and bipolars to high efficiency, full range dynamic speakers.
For supreme musical refinement and authority, an external PC-1 active power factor correction (PFC) rectifier and conditioner can be connected to each Model 201 chassis. (Requires internal setup to 240V operations).
Model 201 Features
Monoblock 250W balanced power amplifier design housed into an Elegant, ultra-low resonance, structurally rigid chassis that is precision-machined from solid blocks of aircraft grade 6061-T6 aluminum that is completely sealed for trouble-free operation and high RF and EMI isolation.
Front panel precision-sculpted with a unique process that utilizes a diamond tipped cutting tool to produce an attractive and unique appearance.
Power supply efficiency
Regulated, high speed, vanishingly quiet switch mode power supply (SMPS) ensures consistent performance under all operating conditions.
Ultra-high efficiency ICEpower 500 ASP power conversion module yields 250 Watts into 8 Ohms, doubling over 4 Ohms.
High current, high damping
Peak current of 35 Amps and a damping factor of 1000 control with nimble authority speakers ranging from moderate size bipolars upto high efficiency full range dynamic designs.
Fully balanced Differential Mode transformer-coupled input and output architecture, from its Neutrik XLR input connector to output, is pivotal to the 201’s Elimination of ground loop noise, EMI, and to its 90dB common rejection ratio in the most demanding stereo and multi-channel applications.
Patented Cardas terminal features active positive and negative binding posts. Perfectly inverted signal on negative connector yields optimum control of even the most demanding speakers.
Transformer-coupled input phase provides universal compatibility with source components and eliminates ground loop noise and EMI. Transformer coupled output produces ideal amplifier-to-loudspeaker impedance, damping, and current matching.
PC1 PFC compatibility
For supreme musical refinement and authority, an external PC-1 active power factor correction (PFC) rectifier and conditioner can be connected to each Model 201 monoblock chassis. (Requires internal setup to 240V operations).
Optional RCA to XLR adapters insure invariant gain and input impedance for unbalanced sources.
Supports 12V remote ON/standby remote trigger for power control via 1/8” jack on rear panel.
Accessible on the back panel.
Grounded 15 Amp female IEC AC power connector.
Model 201 Specifications
|Output Power||Continuous RMS @ 8 ohms - 250 watts / @ 4 ohms - 500 watts|
|Frequency Response||5 Hz - 70kHz, 3dB|
|Peak Output Current||> 35 amps|
|Dynamic Range||117 dba|
|Load Impedance Range||2 ohms - 16 ohms|
|THD + Noise||0.1W-500W/4 ohm <.05%, typically .006 @ 1kHz|
|CCIF Intermod. Dist., 19/20kHz||<.002%|
|Damping Factor @ 1 kHz||1000|
|Overall Gain||Selectable Internal Jumper, 26 or 32 dB|
|Input Impedance||40k Ohms|
|Common Mode Rejection Ratio||>90dB, 20 Hz 20 kHz|
|Absolute Phase||Non-inverting, Pin 2 Positive|
|Inputs||1 x Balanced XLR (Unbalanced operation requires an optional XLR to RCA adapter)|
|Outputs||1 Pair CE-Approved Binding Posts|
|Power Consumption||Idle - 9 watts Maximum - 650 watts|
|Amplifier Weight||13 lbs/6 kg.|
|Amplifier Dimensions||2.6" x 8.4" x 11.5"|
Model 201 Mono
Jeff Rowland imaging, staging, and musicality in a beautifully crafted monoblock chassis capable of capturing the often elusive music and theater experience with grace and authority. Model 201 delivers a compelling musical experience with a linear frequency extension that ranges from a deep pitched bass to a textured treble, with rippling harmonics and nuanced low level resolution. This work of art, in both sight and sound, is a true Rowland.
Housed in an elegant and compact chassis milled from aircraft-grade Aluminum ingots, the Model 201 monoblock power amplifier has been created to exacting JRDG artistic and engineering standards. The advanced green technology that delivers its refined performance, make the Model 201 monoblock power amplifier ideal for the most sophisticated stereo and multi-channel audio systems at a real world price.