The
PDR-Power amplifiers offer the best performance in their class,
redefining expectations in the high-power compact amplifier category.
Thanks to trickle-down technology, our in-house engineering team has
taken many of the patent-pending technologies introduced in the
industry-leading PDX series and infused them in the new PDR-Power
amplifiers. The PDR-Power amps provide you with the absolute widest
bandwidth, best signal-to-noise, lowest distortion and highest damping
factor of any amplifier in their class without sacrificing power.

FEATURES
Install
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Angled Insert-Type Terminals
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Integrated Wire and Mounting Screw Terminals
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Terminal Layout: One-Sided
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Mounting Design: Clean-look installation
General
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Rotatable Illuminated Alpine Badge
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Top-Side Control Panel
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Amplifier Type: Class-D (Digital)
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Channel Design: 4/3/2 Channel
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Thermal Control : Thermal management control
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Low-battery Protection
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Power Supply: Resonant Mode Power Supply
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Power Supply Design: DC-DC PWM Power Supply
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Board Circuitry: STAR Circuit
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Current Protection: Auto Over-Current Protection
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Power Indicator: Top Mounted Blue LED Power/Status Indicator (Power: Blue, Status: Blue/Red)
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Crossover: Adjustable Low-Pass/High-Pass
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Pre-Amp Stage: Discrete
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Final Outputs: MOSFET
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Board Design: 6-Layer Glass Epoxy PC Board
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Gain Control: Adjustable
SPECIFICATIONS
Max Power Output Ratings
RMS Power Ratings
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Per channel into 4 Ohms: (@14.4V ≤1%THD+N) 85W x 4
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Per channel into 2 Ohms: (@14.4V ≤1%THD+N) 125W x 4
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Bridged into 4ohms, 14.4V(@14.4V ≤1%THD+N): 250W x 2
Sound Tuning
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Crossover: Variable LPF, 50-400Hz (-12dB / oct )
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Crossover: Variable HPF, 50-400Hz (-12dB / oct )
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Equalizer (Bass EQ): 0 or +6 or +12dB (CH3/4, fc=50Hz) Selectable
Dimensions
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Heat Sink (WxHxD) mm: 228.5mm x 165mm x 50.8mm
General
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Power Requirements: 14.4V DC (11 - 16V)
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Input Sensitivity (RCA Input): 0.2 - 4.0V
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Input Impedance: >10k ohms
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Frequency Response (+0, -3dB: 1W into 4 ohms): 8Hz - 45kHz
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Frequency Response (+0, -1dB: 1W into 4 ohms): 10Hz - 30kHz
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THD+N (10W into 4 ohms): ≤0.02%
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THD+N (Rated Power into 4 ohms): ≤0.07%
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Damping Factor (10W into 4 ohms at 100Hz): >500
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Signal to Noise (Rated Power into 4 ohms): >106dB
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Weight: 2.5kg