Grace Design m920 2-Ch High Resolution Monitoring System

2-ch Headphone Amplifier with Balanced and Unbalanced Analog I/O, Digital Input via USB, AES, TOSlink, and S/PDIF Coax, and Support for PCM and DSD Audio
Grace Design m920 2-Ch High Resolution Monitoring System image 1
Grace Design m920 2-Ch High Resolution Monitoring System image 1
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Grace Design m920 2-Ch High Resolution Monitoring System
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More Than a Headphone Monitoring System

Even the most seasoned ears at Sweetwater agree the Grace Design m920 headphone amplifier sounds amazing, but that's no surprise from Grace. You'll hear every detail of your music with impeccable imaging, but it's the multitude of input and format options that's impressive. On top of generous analog and digital I/O, the m920 lets you listen to up to 384kHz/32 bit PCM audio as well as DSD64 and DSD128 formats. You can even simulate the effect of listening on speakers with the X-feed mode, which can improve imaging when using headphones with the Grace Design m920.

Grace Design m920 Headphone Amplifier Features at a Glance:
  • Headphone amplifier and D/A converter with 32bit Sabre DAC technology
  • Listen to your highest quality audio, with support for up to 384kHz/32 bit PCM audio and DSD64 and DSD128 audio
  • Ensures true stereo balance at any monitoring level with .05dB channel level matching
  • Amazingly clear playback with excellent stereo imaging and deep soundstaging
  • Simulate the acoustics of a loudspeaker when using headphones with the X-feed mode
  • Ideal for listening to music at the highest possible quality, and also for use as a standalone D/A converter
You'll hear every detail with the Grace Design m920 headphone amplifier

Additional Media

m920 Quick Start Guide
m920 User Manual
Studio Monitor Buying Guide

Tech Specs

Input Channels 6
Output Channels 2
Analog Inputs 2 x XLR, 2 x RCA
Analog Outputs 2 x 1/4", 2 x RCA
Digital Inputs 1 x AES, 1 x TOSLINK, 1 x S/PDIF (Coax)
USB 1 x Mini
Controls per Channel Volume, Output Selector
Form Factor Desktop
Height 1.7"
Depth 8.25"
Width 8.5"
Weight 5 lbs.
Manufacturer Part Number A920

Customer Reviews

Based on 3 reviews
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Best Studio Monitor Driver Ever

I use this in my home studio to power headphone amp and as a monitor driver for all my recording applications. I use TRS cables from the balanced line outputs of the m920 to a pair of Neumann KH 120 Nearfield studio monitors. My DAW is Reaper/MacBook Pro. Input device is set as Aggregate Device, setup in MacBook Pro's audio/Midi Setup program. This allows me to combine a Grace Designs m201 mic preamp and an RME Fireface 400 for all the recording inputs I need. Output device is set to "built in output" and I run a TosLink cable from the headphone output of the Macbook Pro to the Toslink Input of the m920 to give a high def digital signal path from the DAW to the M920 for playback. The m920 is a joy to use. Push the volume button to select between headphone and monitors. This is by far the best and simplest solution I've found for studio playback. It works beautifully with the Neumann monitors and has a small footprint on the studio desktop. It's pricey, but I'm glad I splurged.

Crystal Clear!

Absolutely phenomenal clarity and dynamics! Separation is incredibly good. There is no color imparted by the amp or DAC, which is really very difficult to achieve. You will hear that the audio actually sound like, not any or slick marketing tricks. The filters do what they say they do, and the cross-feed is very good on things like the Beatles originals where the stern separation is extreme. Fantastic with Focal CMS 65 V2 and also had not found any headphones that don't sound good through this box. Elegant and simple industrial design. Easy to use. Sturdy and a FIVE YEAR WARRANTY from Grace. Very Hard To Beat! You won't get an sharpness from the Sabre DAC inside, so don't worry about that if you are concerned. Shout out to Simon Picazo my Sales Engineer for recommending this box long ago after I tested another brand at a local shop and was terribly disappointed. Awesome as always. Sweetwater comes through!
Music background: Worship Leader, Audiophile, Studio Musician

Gracious Digital!

After owning the PS Audio PWD II for six months, most recently running firmware version 2.4.6 (which is the best I tried), I wanted to move to a dac/preamp solution that would include analog inputs for my phono preamp as well as headphone outputs, and perhaps DSD capability. My search led to the Grace m920, which I purchased through Paul Allen at Sweetwater. My initial impressions, formed over the last week, follow – I am using the Grace m920 with Dynaudio Gemini speakers, with their superb D260 tweeter, the Bob Latino M-125 140 wpc KT-120 based tube monoblocks, and driven by an Airport Express via toslink streaming Qobuz and my computer-based files at 16/44 and 24/192.. Great care has been taken with my speaker placement for smooth response and optimal soundstage and imaging. My headphones are Sennheiser HD-600s. Physical impressions: The Grace m920 is at once finished like fine jewelry and has a very cool, high tech appearance. The gleaming stainless steel matches my Bob Latino M-125 power amps very well, while the top and bottom plates have an Apple Mac like finish. Very impressive, and clearly conveys its professional heritage. Knobs and controls are all solid and convey quality. Operational impressions: While not a large unit, the input and output flexibility is superb, and the volume knob controlled menuing system is very extensive and well thought out. Separate level control over headphone and line level outputs (there are two) means great flexibility and ease of use. Also, three filter settings are available (linear phase – fast rolloff, linear phase – slow rolloff and minimum phase – fast rolloff). Online firmware updates are available from Grace for Windows computers, and I understand an OS/X version is in development. In addition to Grace’s optional remote, an Apple remote can be used with the m920. I didn’t miss the PWD’s touchscreen, in fact preferred the bright (but dimmable) display on the Grace for use with the remote from 12’ away. The S-lock system was engaged about 50-60% of the time, understandable given the moderate jitter of the Airport Express. The Grace also has a secondary PLL system that further reduces jitter. The Grace m920 uses the new Sabre 9018-2M 32/384 plus DSD chip, and I believe the m920’s volume control is implemented in the analog domain. Sonic impressions: These impressions are generally in comparison to the PWD II, which I preferred to the NAD M51, the BMC Puredac and the Oppo BDP-105 which I’ve had in my system over the past year, among others. I listen primarily to well-recorded acoustic jazz, and since I play jazz guitar I feel that I have a good reference for what real instruments should sound like. In other DACs, I found the Sabre 9018 to be a bit “tizzy” in the high end, with mids suppressed in comparison. Not so with the Grace m920. Using the Linear Phase – slow filter, which sounded best in my system, cymbals were clear, metallic and smooth (vs dry and sandpapery). Great air around instruments, and completely non-fatiguing. Very little sibilance on female vocalists, with just the right mix of detail and musicality in my system. The Grace m920 has plenty of drive, with great dynamics, especially in the bass, which is extended and articulate – I could easily focus on the harmonics in Ray Brown or Ron Carter’s string bass, for example. The soundstage was wide and deep, with great image stability. Many jaw dropping moments as I stared in wonder at a 3-D, visual representation of instruments in space. I believe this reflects the very close channel matching – within .05db at all frequencies, extended frequency response and Grace’s attention to power supply and analog output stage design. The m920 includes a crossfeed circuit that provides a sophisticated signal mix to enhance the headphone listening experience. This is described further on their site, and I found works very well. In summary, I’m very happy with all aspects of the Grace m920, and take pride in owning a component of this overall quality.
Music background: Jazz Guitar Student, Audiophile
See also: Headphone Amps, Grace Design, Grace Design Headphone Amps and Distribution