Musical Fidelity M6x DAC - Black
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Musical Fidelity M6x DAC - Black
What You Need to Know
Digital Music with Natural Scale and Flow
The Musical Fidelity M6x DAC is a full-size digital hub, preamplifier, and headphone amplifier created for listeners who want high-resolution detail without sacrificing tonal richness or musical momentum. Its dual-mono conversion architecture, extensive inputs, and robust analog stages give streamers, computers, and disc transports a more open, dimensional, and engaging voice.
If you want one serious component to handle digital conversion, system volume, and demanding headphones, the M6x DAC was designed for you.
Dual ESS DACs Sharpen Focus without Losing Warmth
Two ESS ES9038Q2M DAC chips operate in dual-differential, dual-mono mode so each channel receives dedicated conversion resources. You’ll hear cleaner separation, more stable imaging, and finely resolved transients while music retains the weight and ease associated with Musical Fidelity electronics.
Reclocking and Upsampling Reveal More of the Performance
Advanced reclocking is active on every digital input to reduce timing errors before conversion. Switchable upsampling can raise incoming PCM to 352.8kHz or 384kHz, letting you compare a smoother, more refined presentation with the immediacy of native-rate playback.
Eight Filter Settings Put You in Control
Seven oversampling filters and a dedicated oversampling-bypass mode let you fine-tune transient character, high-frequency response, and spatial presentation. Leave the M6x at its standard setting for effortless listening or explore the options to find the best match for your recordings and system.
Balanced Outputs and Serious Headphone Power
Independent output buffers serve the RCA and fully differential XLR connections, with fixed or variable operation for use with an integrated amplifier, preamplifier, active speakers, or power amplifier. The current-feedback Class AB headphone stage supplies 1.5 watts per channel into 32 ohms, giving many full-size headphones confident dynamics and control.
Quiet Power and Solid European Construction
A Super Silent encapsulated toroidal transformer, EMI-filtered power inlet, and DC blocker reduce electrical interference and mechanical hum. The rigid aluminum front and side panels shield sensitive circuitry and give the M6x DAC the substantial build expected from Musical Fidelity’s M6 series.
Building Your System
Connect a streamer, CD transport, television, or computer through coaxial, optical, AES/EBU, or asynchronous USB. USB supports PCM up to 32-bit/768kHz, DSD256 through DoP, and native DSD512, while the S/PDIF-family inputs accept PCM and MQA up to 24-bit/192kHz.
Use fixed output with an integrated amplifier or preamplifier, or select variable output to control active speakers or a power amplifier directly. Balanced XLR connections provide 4V RMS output, while RCA connections provide the standard 2V RMS level.
Features & Specifications
Dual-Mono ESS Sabre Conversion
Two ES9038Q2M DACs in dual-differential operation improve channel separation, image stability, and low-level resolution.
Advanced Reclocking on Every Input
Incoming digital signals are synchronized to the M6x master clock for cleaner timing and more precise transients.
Switchable Upsampling and Eight Filter Settings
Compare native playback with 352.8/384kHz upsampling and tailor the presentation through seven filters or bypass mode.
PCM 768kHz, Native DSD512, and MQA
Broad format support accommodates advanced computer-audio libraries, legacy digital sources, and hardware MQA decoding.
Fixed or Variable RCA and XLR Outputs
Use the M6x as a conventional DAC or let its digital volume control drive a power amplifier or active speakers directly.
1.5-Watt Headphone Amplifier
The current-feedback Class AB stage delivers fast, low-noise drive for headphones rated at 16 ohms or higher.
Specifications
· Type: Digital-to-analog converter, digital preamplifier, and headphone amplifier
· DAC Architecture: 32-bit ESS HyperStream II, dual-mono and dual-differential
· DAC Chips: 2 x ESS ES9038Q2M
· Digital Inputs: 1 x coaxial, 2 x optical, 1 x AES/EBU, and 1 x USB Type-B Audio Class 2.0
· USB Support: PCM to 32-bit/768kHz; DSD256 via DoP; native DSD512
· S/PDIF and AES/EBU Support: PCM and MQA to 24-bit/192kHz
· Digital Processing: Reclocking, switchable upsampling, seven oversampling filters plus bypass, and full hardware MQA decoding
· Analog Outputs: 1 x stereo RCA pair and 1 x stereo balanced XLR pair; fixed or variable
· Line Output: 2V RMS RCA; 4V RMS XLR; <10Ω output impedance
· Headphone Output: 6.3mm variable
· Headphone Amplifier Power: 1.5W per channel into 32Ω
· Recommended Headphone Impedance: 16Ω minimum
· Digital Performance: <12ps correlated jitter; >120dB A-weighted SNR; <0.0005% THD
· Channel Separation / Response: >130dB at 10kHz; -0.1dB at 10Hz to -0.4dB at 20kHz
· Maximum Power Consumption: 20W; <0.5W standby
· Dimensions (W x H x D): 440 x 100 x 390mm (17.3 x 3.9 x 15.4 in.)
· Weight: 6.9kg (15.2 lb.)
· Finish: Black
· Warranty: Three years, parts and labor
Frequently Asked Questions
Can the M6x DAC connect directly to a power amplifier, active speakers, or headphones?
Yes—the RCA and XLR outputs can operate in variable mode for direct level control, and the built-in 6.3mm headphone amplifier delivers 1.5 watts per channel into 32 ohms.
How is the M6x DAC a step up from the M3x DAC?
The M6x adds dual ES9038Q2M converters, PCM support to 768kHz, native DSD512, MQA decoding, selectable filters and upsampling, more advanced reclocking, and a powerful built-in headphone amplifier.
What would I gain by moving up to the M8x DAC?
The M8x adds discrete Class A analog stages, a fully balanced 3.2-watt headphone amplifier with 4-pin XLR output, expanded connectivity, and more ambitious power-supply and chassis construction, while the M6x preserves the core dual-mono flexibility at a lower price.
Who is the Musical Fidelity M6x DAC designed for?
It is designed for listeners who want a versatile full-size DAC with high-resolution format support, balanced variable outputs, flexible sound adjustment, and enough headphone power for serious personal listening.
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Overview
- Premium DAC with built-in headphone amp
- DAC Circuit: 32 bit Hyperstream II
- DAC Chip: 2x ES9038Q2M (dual differential)
- 16-core XMOS and CPLD MAX II Altera processors
- USB: up to 32bit/768kHz
- USB: DSD 256 (stereo DoP), DSD512 (stereo native)
- SPDIF: up to 24bit/192kHz
- Advanced Reclocking on all inputs
- Switchable Upsampling with Oversampling Bypass
- Super Silent Power Transformer
- Balanced and RCA output
- Built-in Headphone Amplifier
- Full Hardware MQA Decoding
- Roon Tested
Digital Inputs
- 1x Coax, up to 24bit 192kHz (stereo PCM + MQA)
- 2x Optical, up to 24bit 192kHz (stereo PCM + MQA)
- 1x AES/EBU, up to 24bit 192kHz (stereo PCM + MQA)
- 1x USB Audio Class 2.0, ‘USB B’; up to 32 bit 768kHz (stereo PCM + MQA), DSD 256 (stereo DoP), DSD512 (stereo native)
Analog Outputs
- 1 pair line level RCA fix/var @ 2V RMS at 0dBFS
- 1 pair line level XLR fix/var @ 4V RMS at 0dBFS
- Output impedance: < 10 ohms
- 1 Headphone out 6.3mm jack variable
DAC
- DAC Circuit: 32 bit Hyperstream II
- DAC Chip: 2x ES9038Q2M (dual differential)
- Total correlated jitter: <12 picoseconds peak to peak
- Linearity: <0.4dB down to -130dB
- Frequency response: -0.1dB at 10Hz, 0dB at 1kHz, -0.4dB at 20kHz
- Channel separation: >130dB at 10kHz @ 0dBFS
- Signal to noise: >120dB “A”- wtd 1kHz @ 0dBFS
- Total harmonic distortion: < 0,0005% at 1kHz @ 0dBFS
Digital Inputs
- 1x Coax, up to 24bit 192kHz (stereo PCM + MQA)
- 2x Optical, up to 24bit 192kHz (stereo PCM + MQA)
- 1x AES/EBU, up to 24bit 192kHz (stereo PCM + MQA)
- 1x USB Audio Class 2.0, ‘USB B’; up to 32 bit 768kHz (stereo PCM + MQA), DSD 256 (stereo DoP), DSD512 (stereo native)
Analog Outputs
- 1 pair line level RCA fix/var @ 2V RMS at 0dBFS
- 1 pair line level XLR fix/var @ 4V RMS at 0dBFS
- Output impedance: < 10 ohms
- 1 Headphone out 6.3mm jack variable
Headphone Amp
- Power: 1.5W / channel into 32 Ω
- Output impedance: Min. recommended 16Ω headphones
- THD: < 0.005% at 1kHz @ 0dBFS
- Signal/noise ratio: >115dB “A” wtd
- Frequency response: +0.1, -0.4dB 20Hz to 20kHz
General
- Voltages: 230V/115V Internally set or 100V optional
- Max. Consumption: 20W, <0.5W in standby
- Dimensions (WxHxD): 17.3" x 4" x 15.4"
- Weight: 15.2 lb.
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