Does anyone here use the Matrix Quattro Amp and DAC?
I am using the DAC at the moment with its onboard headphone amp and am suitably impressed.
I am waiting for the Quattro amp to arrive to use in balanced mode with the DAC and a balanced cable for my HD800s.
Links here:
http://www.matrix-digi.com/english/cpshow.asp?pid=24http://www.matrix-digi.com/english/cpshow.asp?pid=25Quattro Dac:
MATRIX MATRIX QUATTRO audio system is designed to develop a set of desktop, high-quality audio playback system.
QUATTRO audio system includes a QUATTRO DAC and a QUATTRO AMP, the appearance of two hosts with the same design elements with the same external dimensions, which can also be used independently.
QUATTRO DAC is a combination of high-speed digital signal processing technology, multi-D / A converters, with a variety of input and output ports can be used with a variety of devices.
QUATTRO audio system through careful circuit design, high quality devices use, professional-grade playback, the traditional audio equipment to a new height.
MATRIX QUATTRO DAC with top AD1853 24Bit/192kHz D / A conversion unit, fully balanced architecture. Oversampling unit within the ASRC, with MATRIX CPLD unique algorithm can effectively reduce the input signal jitter, four high-speed signal PCB layout, sophisticated design QUATTRO DAC has the following features:
• Low Jitter rate with a professional digital receiver chip and independent clock.
• has a fiber optic, coaxial, USB, AES / EBU and analog inputs and a variety of input methods, and automatic detection of input.
• USB supports up to 24BIT/96kHz sample input, other input port supports up to 24BIT/192kHz sampling.
• Automatic de-emphasis, can be automatically 32,44.1,48,96 K sampling rate signal for automatic de-emphasis control.
• Internal high-speed CLPD XILINX MATRIX has its own algorithm, sampling rate boost circuit with ASRC reduce jitter.
• analog with balanced and unbalanced outputs can be connected to different interfaces.
• High-quality LME49600 headphone amplifier unit can easily drive up to 600 Euro impedance headphones.
• digital input port with ESD static protection and transformer isolation protection.
• Analog output with low distortion audio-specific op-amp LM4562, to get the best signal playback.
• High-quality audio NORATEL dedicated toroidal transformer, the circuit unit with an independent multi-level power supply.
• High-quality NEUTRIK audio connectors.
• High-quality ALPS volume potentiometer.
• Multi-voltage compatible design.
• with infrared remote control.
• natural sound performance with texture, ultra-high resolving power and signal to noise ratio for you to discover the music every minute detail. Fully meet your high-quality Hi-Fi audio needs.
● Specifications
Input port:
Optical interface: shielded optical digital input
Sampling rate support 24Bit 32kHz-192kHz
BNC coaxial connector: BNC 75 ohm impedance sampling rate support 24Bit 32kHz-192kHz
USB interface: USB-B interface, the sampling rate support 24Bit 44.1kHz-96kHz
AES / EBU: XLR 110 ohms impedance sampling rate support 24Bit 32kHz-192kHz
Analog Input: RCA terminal 20Hz-20kHz 47kOhms Lotus
Output port:
RCA connector Output level: 0V-2.0V adjustable
XLR connectors output level: 0V-4.0V adjustable (XLR interface definition: 1 = ground, 2 = hot, 3 = cold)
Frequency response: 20Hz-20KHz
Signal to noise ratio: 114dB
Dynamic Range: 110dB
Distortion: <0.00056% (1kHz)
Headphone Amplifier:
Output impedance: <0.11 Ohms
Maximum output current: 300mA
Gain Bandwidth:> 500kHz
Signal to noise ratio: 106dB
Distortion: <0.0005%
Power requirements:
Power: AC 220V-240V 50/60Hz (AC 110V-120V 50/60Hz)
Working power consumption: <25W
Standby power consumption: <2W
Other specifications:
Operating temperature: 0 - +40 ℃
Weight: 1.6kg
Size: 205 × 245 × 44 (L × W × H)
Fuse size: 5 × 20mm 250V 0.5A
Quattro Amp:
MATRIX MATRIX QUATTRO audio system is designed to develop a set of desktop, high-quality audio playback system.
QUATTRO audio system includes a QUATTRO DAC and a QUATTRO AMP, the appearance of two hosts with the same design elements with the same external dimensions, which can also be used independently.
QUATTRO AMP is a fully independent four-channel amplifier with balanced / unbalanced headphone amplifier, headphones with MATRIX-specific detection, designed to balance the drive design, the headset is also compatible with non-equilibrium.
QUATTRO audio system through careful circuit design, high quality devices use, professional-grade playback, the traditional audio equipment to a new height.
MATRIX QUATTRO AMP within the independent four-channel high-quality broadband amplifier, fully balanced architecture.MATRIX unique headset with auto-detection function, professional analog audio signal PCB layout, sophisticated design QUATTRO AMP has the following features:
• have a balanced and unbalanced analog inputs can be connected to different interfaces of analog audio equipment.
• The headset can automatically detect the connection type, automatic conversion output.
• Driving the two pairs of non-headphone or a balanced approach to the way Fu Pingheng headphones.
• ultra-low distortion audio-specific op-amp to get the best signal playback.
• High-quality audio NORATEL dedicated toroidal transformer, the circuit unit with an independent multi-level power supply.
• High-quality NEUTRIK audio connectors.
• High-quality ALPS volume potentiometer.
• Multi-voltage compatible design.
• Infrared remote control with function.
• natural sound performance with a texture, a strong driving force to drive any size of moving coil headphones, to fully meet your high-quality Hi-Fi headphone amplifier.
● Specifications
Analog Input:
XLR connectors
Frequency response: 10Hz (-0.3dB) to 35 kHz (-1dB)
SNR:> 98dB at 0dB gain
Distortion: <0.001% at 6mW/300 Ohms
Gain Bandwidth:> 500kHz
RCA connectors
Input impedance: 47Kohms
Frequency response: 10Hz (-0.3dB) to 35 kHz (-1dB)
SNR:> 95dB at 0dB gain
Distortion: <0.001% at 6mW/300 Ohms
Gain Bandwidth:> 500kHz
Headphone Output:
Balanced approach
Maximum output current: 1000mA
Output power: 400mW/300 Ohms, 800mW/60 Ohms
Non-equilibrium approach
Maximum Output Current: 500mA
Output power 200mW/300 Ohms, 400mW/60 Ohms
Power requirements:
Power: AC 220V-240V 50/60Hz (AC 110V-120V 50/60Hz)
Working power consumption: <25W
Standby power consumption: <2W
Other specifications:
Operating temperature: 0 - +40 ℃
Weight: 1.6kg
Size: 205 × 245 × 44 (L × W × H)
Fuse size: 5 × 20mm 250V 0.5A


