ABOUT THE DMS-550 NETWORK AUDIO PLAYER The DMS-550 represents the 3rd generation of network capable audio devices for Cary Audio and 2nd generation in our renown “DMS” platform. The DMS-550 Roon Ready Network Audio Player builds upon this platform utilizing the latest in technological advancements over its predecessor.

The DMS-550 is fully MQA Certified. The MQA decoder includes recent optimization to provide superb rendering up to 768kHz using the AKM DAC. Thanks to the newest AKM 4493EQ VELVET SOUND DAC chips, native playback up to 32-bit / 768 kHz PCM as well as native DSD up to 512 is achieved effortlessly. The DMS-550 also includes a built-in true Class-A headphone amplifier using 2 pairs of discrete output transistors, capable of exceptional sound and drive. aptX™ has been upgraded to aptX™ HD, making Bluetooth sources capable of high resolution 24- bit / 48kHz. Connecting the DMS-550 to your wired or wireless home network opens up a new world of musical enjoyment like never before. Easily stream high resolution music from on-board music services like Qobuz (delivering PCM streams up to 24 bit / 192 kHz), TIDAL (Delivering MQA Masters up to 24 bit /384 kHz), Spotify, and vTuner as well as from any network PC, MAC, or NAS drive. Don’t have or desire a network? That’s no problem for the DMS-550 with its direct file playback capability via its integrated SD Card slot and three (3) USB ports for connecting USB hard discs drives for 32-bit / 768kHz PCM, MQA, DSD 512, and ISO (SD Card only) playback.

Master Clock Jitter Below measurable levels
Digital Sampling Rates (Fs) 44.1 kHz to 768 kHz
Digital Filter 32-Bit 8x Oversampling Digital Filter
Digital/Analog Converters 2 – 2 channel AK4493EQ for working on true balanced output
BLUETOOTH CSR Bluetooth v 4.0 with aptX® HD for 24 Bit / 48 kHz high definition audio decoder
Analog Filter 3rd Order Bessel
Analog Outputs Balanced XLR, Single – Ended RCA
Digital Outputs Coaxial, Toslink operating at Sample Frequency (Fs) from 44.1 kHz to 192 kHz, 16 bit to 24 bit
Digital Inputs USB x 3, SD Card x 1
BLUETOOTH x1
AES/EBU x1, Coaxial x2, Toslink x1
Digital Input Sample Rate USB operating at Sample Frequency (Fs) from 44.1 kHz to 384 kHz, 16 bit to 32 bit, DSD 64, 128, 256 and 512.
BLUETOOTH Sample Frequency (Fs) 48kHz, 24bit.
AES/EBU, Coaxial, Toslink operating at Sample Frequency (Fs) from 44.1 kHz to 192 kHz, 16bit to 24 bit
Control Trigger input 12VDC x1
IR control x1
Communication Ethernet RJ45 full remote configuration interface
Wi-Fi 802.11 b/g/n/ac support MU-MIMO
Power Input Configured at factory for either 110-120 or 220-240 VAC, 50-60 Hz
AC Power Requirements 45 Watts
Finish Black powder coated matte chassis with silver or black aluminum faceplate
Weight 23.5 lbs
Dimensions 3.75″ H x 17.25″ W x 16.25″ D
AUDIO (LPCM)

Frequency Range 2 Hz – 22 kHz (44.1 kHz)
Amplitude Linearity 0.1 dB (20 Hz – 20 kHz)
Phase Linearity 3 degrees (20 Hz – 20 kHz)
Dynamic Range 125 dB (1 kHz)
Signal-to-Noise Ratio 113 dB (1 kHz)
Channel Separation 107 dB (1 kHz)
Total Harmonic Distortion 0.0004% (1 kHz)
Audio Output Level 2.0V RMS (220 Ω output impedance) for Volume at 0.0dB
3.0V RMS (220 Ω output impedance) for Volume at +8.0dB
Balanced XLR Output +/- 2.0V RMS (440 Ω output impedance) for Volume at 0.0dB
+/- 3.0V RMS (440 Ω output impedance) for Volume at +8.0dB
NETWORK, USB, SD CARD PLAYBACK

Playback Format Supply .dsf, .dff (DSD64, 128, 256, 512), .aif, .aiff, .alac, .flac, .m4a, .mp4, .wav, .ape, .mp3, .aac, .wma, .ogg, .asf
Frequency Range 2 Hz – 125 kHz
Signal System 16, 20, 24, & 32 bit PCM and 1 bit DSD
Sampling Frequency 44.1 kHz to 384 kHz PCM and 2.822MHz – 22.5792 MHz DSD
Dynamic Range 125 dB
DSD System Clock Frequency 22.5792 MHz
Signal-to-Noise Ratio 112 dB
Audio Output Level 2.0V RMS (220 Ω output impedance) for Volume at 0.0dB
3.0V RMS (220 Ω output impedance) for Volume at +8.0dB
Balanced XLR Output +/- 2.0V RMS (440 Ω output impedance) for Volume at 0.0dB
+/- 3.0V RMS (440 Ω output impedance) for Volume at +8.0dB
SPDIF PLAYBACK; COAXIAL, TOSLINK, AES/EBU (lPCM)

Frequency Range 2 Hz – 100 kHz
Signal System 16, 20, and 24 bit
Sampling Frequency 44.1 kHz to 192 kHz PCM
Dynamic Range 123 dB
System Clock Frequency 22.5792 MHz
Signal-to-Noise Ratio 112 dB
Audio Output Levelb 2.0V RMS (220 Ω output impedance) for Volume at 0.0dB
3.0V RMS (220 Ω output impedance) for Volume at +8.0dB
Balanced XLR Output +/- 2.0V RMS (440 Ω output impedance) for Volume at 0.0dB
+/- 3.0V RMS (440 Ω output impedance) for Volume at +8.0dB
HEADPHONE AMPLIFIER

Frequency Range 2 Hz – 80 kHz (-3dB)
Impedance 8 – 600 ohms
Output Power 850 mW + 850 mW (32 ohms 1 kHz 0.002%)
THD+N 1.0kHz<0.002%
20.0kHz<0.0025%
31.0kHz<0.0022%
Max-Voltage Out (V RMS) Headphone Impedance Z(Ω) Output Power Per Channel (mW)
5.2 600 45.1
5.2 300 90.1
5.2 100 270.4
5.2 60 450.7
5.2 50 540.8
5.2 32 850.0
5.2 16 1690.0
5.2 8 3380.0