Paul Money Hi Fi and Car Stereo - Amplifiers

Ref5350a 5 channel amplifier

Ref5350a 5 channel amplifier — Mon, 14 Jun 10 11:22:45 +1200

5-Channel complete system amplifier with on-board electronic crossover and variable bass boost circuit.

The Reference 5350a is the perfect complete system solution allowing you to drive front and rear speakers as well as subwoofers from a single amplifier.
Port for future expansion products included.
The 5350a comes outfitted with three variable 12dB per octave electronic crossovers allowing you to optimize system tuning based on speaker selections and location.
Remote bass level control included.

SPECIFICATIONS

General
CEA Rated
Power Output 50 watts RMS x 4 channels + 150 watts RMS x 1 channels at 4 ohms and ≤ 1% THD + Noise 60 watts x 4 + 300 watts x 1 at 2 ohms, 14.4V supply and ≤ 1% THD + N2
Signal-to-Noise Ratio 85dBA (reference 1 watt at 4 ohms)
Dynamic Power 89 watts (channels 1,2,3,4); 332 watts (channels 5) at 2 ohms
Effective Damping Factor 6.3 at 4 ohms
Frequency Response (-3dB) 10Hz to 100kHz (channels 1,2,3,4) 10Hz to 302Hz (channels 5)
Maximum Input Signal 6V
Maximum Sensitivity 100mV

Ref1600a Mono Amplifier

Ref1600a Mono Amplifier — Mon, 14 Jun 10 11:21:19 +1200

600-Watt mono subwoofer amplifier with on-board electronic crossover and variable bass boost circuit.

The Reference 1600a features a 12dB per octave electronic crossover, allowing you to optimize bass performance based on enclosure type and subwoofer selection.
Full-range preamp outputs facilitate use of multiple amplifiers without the need for noisy and expensive adapters or signal splitters.
Remote level bass control included
Port for future expansion products provided.

SPECIFICATIONS

General
CEA Rated
Power Output 400 watts RMS x 1 channel at 4 ohms and ≤ 1% THD + N
Signal-to-Noise Ratio 85dBA (reference 1 watt into 4 ohms)
Dynamic Power 600 watts at 2 ohms
Effective Damping Factor 6.3 at 4 ohms
Frequency Response (-3dB) 11Hz to 330Hz (-3dB)
Maximum Input Signal 6V
Maximum Sensitivity 100mV

Ref475a 4 channel amplifier

Ref475a 4 channel amplifier — Mon, 14 Jun 10 11:17:37 +1200

4-Channel full-range amplifier with on-board electronic crossover and variable bass boost.

The Reference 475a's high-output PWM MOSFET power supply ensures optimum power delivery into numerous impedances with low distortion.
A variable bass boost circuit is provided to optimize the low frequency performance of your system.
Full range preamp outputs are provided facilitating multiple amplifier hook-ups without the need for costly Y-adapters or signal splitters.
The 475a comes outfitted with a variable 12dB per octave electronic crossover allowing you to optimize system tuning based on speaker location and accompanying loudspeaker components
The RCA low-level inputs on the 475a have allow for connection to both a preamp level signal and direct connection to a high-level factory head unit.

SPECIFICATIONS

General
CEA Rated
Power Output 75 watts RMS x 4 channel at 4 ohms and ≤ 1% THD + N 180 watts RMS x 2 channel at 4 ohms, 14.4V supply and ≤ 1% THD + N
Signal-to-Noise Ratio 85dBA (reference 1 watt into 4 ohms)
Dynamic Power 117 watts at 2 ohms
Effective Damping Factor 6.315 at 4 ohms
Frequency Response (-3dB) 10Hz to 100kHz (-3dB)
Maximum Input Signal 6V
Maximum Sensitivity 100mV

Pioneer PRSD4200F 4 channel amplifier

Pioneer PRSD4200F 4 channel amplifier — Thu, 04 Feb 10 14:40:47 +1300

Class-FD 4/3/2-Channel Bridgeable Amplifier
75W x4 (4 ohms) / 300W x2 (4 ohms) / 75W x2
300W x1 (4 ohms) / 150W x4 (2 ohms)
150W x4 (4 ohms) / 150W x2
600W x1 (4 ohms) / 600W x2 (4 ohms max power)

Pioneer GM5400T 2 Channel Amplifier

Pioneer GM5400T 2 Channel Amplifier — Thu, 04 Feb 10 14:28:07 +1300

2-Channel Bridgeable Amplifier
125 Watts RMS x 2
Built-in Crossover (80Hz, LPF)
Selectable Bass Boost (50Hz, 0/6/12dB)
Speaker Level Inputs

Alpine MRV-F900 F#1 4 Channel Amplifier

Alpine MRV-F900 F#1 4 Channel Amplifier — Thu, 12 Jun 08 14:04:01 +1200

Three-stage Darlington circuit & bipolar power supply / Six-layer copper through-board design / Copper-plated chassis

The power stage is crucial in accurate reproduction, requiring ultra-fast power for the high-density signal. The MRV-F900 employs a three-stage Darlington bipolar circuit, used previously in only high-end home audio systems. In order to deliver rich and dynamic sound, the final stage has a super-strong parallel push-pull circuit, designed in a perfectly independent two-channel structure, for double stage power supply in a symmetrical layout.

Three-stage Darlington circuit & bipolar power

Also, the output stage is directly linked to the power supply by a six-layer circuit board with a 70 µ thick copper plate – providing instantaneous signal response and high output stability for demanding power levels. The power supply itself has two extra-large 70-mm diameter high-efficiency toroidal transformers to provide extraordinary power, while four specially tuned capacitors ensure unmatched, consistently stable power.

The copper-plated chassis greatly reduces electromagnetic interference, eliminates noise, and contributes to pure, clean amplification.

Power band width

400W + 400W (0.3%THD, 20Hz – 20kHz, 14.4V, at bridge connection into 4Ω) / 200W Å~ 4 (0.3%THD, 20Hz – 20kHz, 14.4V, at 2Ω) / 100W Å~ 4 (0.08%THD, 20Hz – 20kHz, 14.4V, at 4Ω)

Frequency characteristics

20Hz – 50kHz (+0, -1 dB)

S/N Ratio

105dBA

Input sensitivity

500mV – 8.5V / 10kΩ, [Center] 1.0V / 10kΩ

Crossover frequency

50 – 200Hz, slope: 12dB/oct

Size (W x H x D)

650 x 86 x 247/300 mm

Weight

15 kg