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RD Series

Switching Mode Power Supply Professional Power Amplifier

Model List
Product Description

RD Series Professional Power Amplifier adopts switching power supply and class D circuit design which has good performance with high efficiency, light weight and stability.

There are three models for RD Series, RD4.6, RD4.26, RD4.10, all 4 channel amplifiers, with power range from 600W and 1000W at 8ohm per channel.

RD Series adopts modular design. Two channels share one power supply system and amplification system.

With elaborately selected materials and state-of-art craftwork, RD has very good fidelity and high damping factor. It's good choice for DJ, musical instruments, portable audio/video system integration, etc.

  • Features
  • Specifications
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Switching Mode Power Supply

RD adopts the isolation drive design and half bridge working mode. This ensures very stable power supply even with big voltage fluctuation.When the linear voltage output fluctuates greatly, a stable voltage can be provided to ensure continuous power density output.

A Guard Protection System
A Guard Protection System is Audiocenter comprehensive protection system which includes optimized limiter circuit. Unlike other solutions which depend on separate circuits to address different problems, A-Guard was developed as centralized solution where all protection requirements work together in perfect harmony. A-Guard is only applied when it’s necessary to protect the amplifier. This is the reason why RD amplifiers are able to sustain full power output even under complex capacitive loads.

Class D amplifier
RD amplifier adopts efficient class D circuit design. With low noise class D drive IC, and highly-efficient, reliable and low noise pre-stage IC, RD Series can work with very stable resonant frequency. And the central voltage can be adjusted to zero automatically. Result is extremely high damping factor and slew rate, and excellent dynamic performance.
The system acquires extremely high damping factor and slow rate at the same time, and obtains better dynamic and transient experience.
Intelligent Signal Limiter technology
RD amplifier input signal limiter can be up to 8V. With the intelligent input signal limiter technology, RD amplifier can work in linear with input signal from 0V to 8V.
FILTER Switch (In parallel and bridge mode, input channel controls other channels)
Low pass:70Hz~120Hz(±10%) -3dB adjustable
High pass:100Hz(±10%)-3dB

SPECIFICATIONS

RD4.6

RD4.26

RD4.10

Rated Power (20Hz-20KHz,0.1%THD)

8Ω single channel mode

4×600W 

A&B 2×600W

C&D 2×1000W

4×1000W 

4Ω single channel mode

4×1000W 

A&B 2×1000W

C&D

/

8Ω bridge

1800W

/

/

Working mode

Mono, parallel, bridge

Mono, parallel

Mono, parallel

Frequency Response(1W 8Ω stereo)

20Hz-20KHz(±0.5dB)

Sensitivity

1V

Connectors

Input

Neutrik®  Female XLR

Output

4×Neutrik® Speakon NL4MP

Filter Capacitor Capacity

1200μf/200V×4

1200μf/200V×6

1200μf/200V×8

Input Impedance

Balanced

10 KΩ

Unbalanced

10KΩ

Crosstalk(20Hz-20KHz, rated power 8Ω)

≥60dB

S/N Ratio(Rated power 8Ω, A weighted)

≥108dB(100 dB)

Damping Factor(1KHz & 8Ω)

500

Intermodulation Distortion(20Hz-20KHz, 8Ω, half power)

≤0.05%

Total Harmonic Distortion(20Hz-20KHz, rated power, 8Ω)

≤0.05%

Phase Response(1W & 8Ω, 20Hz-20KHz)

20Hz+8°  20KHz-15°

Slew Rate

≥45V/μs

Output Circuitry

Class D

Power Consumption(Dual channel driven 4Ω, 1/8RMS/230V)

1.3A

2.0 A

2.5 A

Rack Space

2U

Cooling

 Front to back venting, mandatory cooling

Dimensions(W×H×D)

483×88×450mm

Net Weight

10.5kg

12.5kg

14.0kg

RD Series Product catalogue 

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