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DC-37 MDSD Digital Processor

Vendor: Accuphase
DC-37 MDSD Digital Processor - Trimira
DC-37 MDSD Digital Processor



DC-37 MDSD Digital Processor 

The DC-37 inherits the outstanding technology of the DC-901 and DP-720, while opening a new chapter in ultra-advanced and innovative digital signal processing technology. It features an MDSD type D/A converter that achieves straight conversion of the DSD signal and supports 5.6448 MHz (1-bit 2-channel DSD) sources. In keeping with this development, the HS-LINK interface has also been upgraded to Version 2 with significantly expanded sampling frequency and quantization support up to 5.6448 MHz (1-bit 2-channel DSD) and 384 kHz (32-bit 2-channel PCM). The DC-37 also offers convenience and flexible functionality. External digital sources can be connected via a total of six digital inputs: HS-LINK, COAXIAL 1, COAXIAL 2, OPTICAL 1, OPTICAL 2, and USB. The DC-37 is a digital processor that redefines the state-of-the art and has its sights firmly set on the future, including computer-based and high-resolution audio. Only strictly selected circuit components, materials and other parts of the highest quality are used, resulting in an immense richness of information that translates into a spectacular musical experience.

  • MDSD type D/A converter using eight parallel circuits
  • Direct Balanced Filter with totally separate line and balanced signal paths
  • Support for 5.6448 MHz (1-bit 2-channel DSD) and 384 kHz (32-bit 2-channel PCM)
  • Six digital interface inputs including HS-LINK and USB
  • Phase selector for balanced outputs
  • Sampling frequency and quantization bit display for input signal
  • Separate power transformers for digital and analog sections




Connector Type
Suitable Cable
Dedicated HS-LINK cable
Suitable Cable
IEC 60958 AES-3 compliant
75-ohm coaxial digital cable
Suitable Cable
JEITA CP-1212 compliant
(480 Mbps) compliant
JEITA standard optical fiber cable
Suitable Cable
USB 2.0 Hi-Speed (480 Mbps) compliant
USB 2.0 cable with Type B connector
Sampling Frequencies
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz (16 to 32-bit 2-channel PCM)
2.8224 MHz, 5.6448 MHz (1-bit 2-channel DSD)
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 
176.4 kHz, 192 kHz (16 to 24 bit 2-channel PCM)
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
(16 to 24 bit 2-channel PCM)
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz (16 to 32 bit 2-channel PCM)
2.8224 MHz, 5.6448 MHz (1-bit 2-channel DSD)
D/A Converter

MDSD principle (DSD signal)

MDS++ principle (PCM signal)

Frequency Response 0.5 to 50,000 Hz +0, -3.0 dB
Total Harmonic Distortion 0.0006% (20 to 20,000 Hz)
Signal-to-noise Ratio 119 dB
Dynamic Range 116 dB 
Channel Separation 117 dB (20 to 20,000 Hz)
Output Voltage and Impedance
2.5 V 50 ohms, balanced XLR type
2.5 V 50 ohms, RCA phono jack
Output Level Control 0 dB to -80 dB (digital)
Sampling frequency / 
Quantization bit display

2-channel PCM

32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 
176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz 
0 to 32 bit (0: No data)

2-channel DSD

2.8224 MHz, 5.6448 MHz 
1 bit


Power Requirements 120 V, 220 V, 230 V AC (voltage as indicated on rear panel), 50/60 Hz
Power Consumption 10 W
Maximum Dimensions

Width 465 mm ( 18.31”)

Height 114 mm ( 4.49”)

Depth 385 mm ( 15.16”)


14.4 kg (31.7 lbs)

20.0 kg (44.1 lbs) in shipping carton


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Our in-house team can service those in Brisbane, the Gold Coast, and the Sunshine Coast. Give us a call to get an obligation-free quote today!

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Our refund policy operates in a 30-day window - after this time we are unable to accept the product and cannot issue a refund. Don't worry, our products are hand picked from thousands of luxury brands to ensure you are only offered the best of the best so we doubt you'll need to consider this policy at all. If you are concerned about making the wrong decision when it comes to your purchase, please feel free to talk with our team of experts who can advise you on equipment based on your personal music taste, aesthetics, and the layout of your listening room. Still not convinced? Discuss the possibility of a loan (trial period) with our experts and hear the difference yourself.

Our refund policy can be viewed here.

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