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RADIAL Sd IS ABOUT THREE THINGS:
POWER, PERFORMANCE AND PRICE.
Check the numbers. RSd amps are some of the highest
rated around. Crank up the system. Your ears will have
a thing or two to say about this baby’s sound clarity.
Then turn over the box. You’ll feel like a genius when
you consider how much money you’ll have left to spend
on your other priorities.
AMPLIFIERS
FEATURES
Built-in 18dB Per Octave Crossover
On Board Protection
Line Level Outputs
High Speed / Current Mosfet Switching
Power Supply
High Speed / Voltage Fully
Complementary Output Stage
Remote Monitoring Display (RMD) Port
Wide Range Input Sensitivity Adjustment
Multi-Function Protection Indicator
Variable Bass Boost
All Monoblocks are Lowpass Level
Control (LPL44) Ready
4-CHANNEL AMPLIFIER RSd500.4
SPECIFICATIONS
Power Output: 85W x 4 (4 Ω, 1kHz and 1%THD+N)
135W x 4 (2 Ω, 1kHz and 1%THD+N)
CEA RATED SPECIFICATIONS
Power Output: 78W x 4 (RMS @ 4 Ω and 1%THD+N)
118W x 4 (RMS @ 2 Ω and 1%THD+N)
Signal to Noise Ratio: 85dBA - 1W Output @ 4 Ω
Frequency Response: 20Hz - 20kHz
Effective Damping Factor: 6.35 @ 4 Ω
Maximum Input: 8.5V @ Clipping
Maximum Sensitivity: 200mV @ Clipping
Dimensions: 19 1⁄4 x 11 3⁄16 x 2 3⁄8"
4-CHANNEL AMPLIFIER RSd300.4
SPECIFICATIONS
Power Output: 53W x 4 (4 Ω, 1kHz and 1%THD+N)
80W x 4 (2 Ω, 1kHz and 1%THD+N)
CEA RATED SPECIFICATIONS
Power Output: 48W x 4 (RMS @ 4 Ω and 1%THD+N)
68W x 4 (RMS @ 2 Ω and 1%THD+N)
Signal to Noise Ratio: 83dBA - 1W Output @ 4 Ω
Frequency Response: 20Hz - 20kHz
Effective Damping Factor: 6.35 @ 4 Ω
Maximum Input: 9V @ Clipping
Maximum Sensitivity: 200mV @ Clipping
Dimensions: 16 7⁄8 x 11 3⁄16 x 2 3⁄8"
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2-CHANNEL AMPLIFIER RSd250.2
AMPLIFIERS
THE DIFFERENCE IS
IN THE DETAIL
Triple Darlington Output Drive with
Complementary Bipolar Transistors
deliver clean, high current signal
Dual Differential Topology
minimizes signal distortion
Poly Film Box Capacitors and 1%
Precision Metal Film Resistors
ensure consistent performance and
long life
IRFZ44 Power Supply MOSFETS
furnish cool, reliable power control
Massive Anodized, Extruded
Aluminum Heatsink
optimizes cooling for maximum
play time
Dual Power Supply Design
provides efficient, low-loss power
conversion (RSd 500.4 and 1200.1)
MONOBLOCK AMPLIFIER RSd1200.1
SPECIFICATIONS
Power Output: 87W x 2 (4 Ω, 1kHz and 1%THD+N)
130W x 2 (2 Ω, 1kHz and 1%THD+N)
CEA RATED SPECIFICATIONS
Power Output: 76W x 2 (RMS @ 4 Ω and 1%THD+N)
113W x 2 (RMS @ 2 Ω and 1%THD+N)
Signal to Noise Ratio: 85dBA - 1W Output @ 4 Ω
Frequency Response: 20Hz - 20kHz
Effective Damping Factor: 6.058 @ 4 Ω
Maximum Input: 8.5V @ Clipping
Maximum Sensitivity: 226mV @ Clipping
Dimensions: 12 7⁄8 x 11 3⁄16 x 2 3⁄8"
SPECIFICATIONS
Power Output: 775W x 11 (4 Ω, 1kHz and 1%THD+N)
1200W x 11 (2 Ω, 1kHz and 1%THD+N)
CEA RATED SPECIFICATIONS
Power Output: 675W x 1 (RMS @ 4 Ω and 1%THD+N)
1000W x 1 (RMS @ 2 Ω and 1%THD+N)
Signal to Noise Ratio: 79dBA - 1W Output @ 4 Ω
Frequency Response: 10Hz - 293Hz
Effective Damping Factor: 6.36 @ 4 Ω
Maximum Input: 9V @ Clipping
Maximum Sensitivity: 215mV @ Clipping
Dimensions: 19 1⁄4 x 11 3⁄16 x 2 3⁄8"
Class D Design
All Radial Sd amplifiers
are designed, engineered,
manufactured and tested
in accordance with
CEA-2006 amplifier
rating requirements.
MONOBLOCK AMPLIFIER RSd600.1
SPECIFICATIONS
Power Output: 425W x 11 (4 Ω, 1kHz and 1%THD+N)
650W x 11 (2 Ω, 1kHz and 1%THD+N)
CEA RATED SPECIFICATIONS
Power Output: 400W x 1 (RMS @ 4 Ω and 1%THD+N)
600W x 1 (RMS @ 2 Ω and 1%THD+N)
Signal to Noise Ratio: 82dBA - 1W Output @ 4 Ω
Frequency Response: 10Hz - 265Hz
Effective Damping Factor: 6.39 @ 4 Ω
Maximum Input: 10V @ Clipping
Maximum Sensitivity: 200mV @ Clipping
Dimensions: 16 7⁄8 x 11 3⁄16 x 2 3⁄8"
Class D Design
MONOBLOCK AMPLIFIER RSd300.1
SPECIFICATIONS
Power Output: 200W x 11 (4 Ω, 1kHz and 1%THD+N)
CEA RATED SPECIFICATIONS
Power Output: 180W x 1 (RMS @ 4 Ω and 1%THD+N)
Signal to Noise Ratio: 84dBA - 1W Output @ 4 Ω
Frequency Response: 10Hz - 300Hz
Effective Damping Factor: 6.39 @ 4 Ω
Maximum Input: 11.8V @ Clipping
Maximum Sensitivity: 226mV @ Clipping
Dimensions: 12 7⁄8 x 11 3⁄16 x 2 3⁄8"
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Monoblocks are measured at 100Hz
310W x 11 (2 Ω, 1kHz and 1%THD+N)
300W x 1 (RMS @ 2 Ω and 1%THD+N)
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