D90SE Audio Digital to Analog Converter FCC WARNING This device complies with part 15 of the FCC Rules.…
After unpacking the M3 save all packing materials in the event you ever need to ship the unit. Thoroughly inspect the M3 and packing materials for any signs of damage in shipment. Report any damage to the carrier at once.
The Bricasti Design M3 is a rugged device with extensive electrical protection. However, reasonable precautions applicable to any piece of audio equipment should be observed.
In the interest of continued product development, Bricasti Design reserves the right to make improvements to this manual and the product it describes at any time and without notice.
All Rights Reserved
This publication is protected by copyright and all rights are reserved.
EMC / EMI
This equipment has been tested and found to comply within the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in residential installations.
This Class B digital apparatus complies with Canadian ICES-003.
Cat apparel numerous de la classed Best conformed a la normed NMB-003 du Canada.
Certificate Of Conformity
Briganti Design, 2 Shaker Rd, Shirley, USA, hereby declares on its own responsibility the following products:
M3 –Digital to Analog Converter
-that is covered by this certificate and marked with the CE-label conforms to the following standards:
This M3 user guide covers theory of design and setup and use. In the future you can always find the latest version available at our web site www.bricasti.com.
Congratulations on the purchase of your new M3 Dual Mono D/A Converter. We at Bricasti Design have set out to design the world’s best of analog and digital and to offer the finest products made for the professional and consumer audio markets.
The M3 features 2 fully differential conversion channels, each with its own D/A converter, and analog level control circuitry. With our twin DAC design, the dynamic range for each channel is optimized by using the stereo ADI 1955 D/A converters in a mono configuration for PCM conversion, clocking is implemented with a technique called DDS (direct digital synthesis) which takes clock induced jitter to immeasurable levels. DSD is converted with our own proprietary one bit analog converter.
The M3 is robustly constructed of milled and CNC machined aluminum sections, no typical bent metal chassis and top cover found on most products. All sections of the construction, the front and rear panels, the sides and even the bottom and top plates start out as solid blocks of aluminum which are precision machined to shape, with exact tolerances for a perfect fit. These parts are then anodized and the text and markings is laser etched for a clean and enduring look.
The intention of the M3 is to provide a state of the art design, utilizing the best designs and materials that can be found today. The converter and following analog stages are a very critical part of the digital and analog audio chain. The sound of the M3 is intended to be transparent and revealing, and fully dynamic. This in part is made possible by lowering the jitter to extremely low levels, providing a pure digital signal chain without sample rate converters, superior digital filter design, pure DSD conversion, coupled to a fast transparent analog signal path with analog level control, discreet analog output section and plenty of good clean linear power for optimum analog performance.
Many hours of listening were done to tune the M3 to an exacting sound, with all types of music, and with extensive testing done in the studio and in the home. We hope you find the M3 to be pleasing and enjoyable to hear and use in the home, or as a precision tool for high level reference monitoring for the professional.
For an outstanding user experience, to provide the ultimate in performance, when the M3 with the optional network interface is a Roon Certified end point. For a free trial
|Voltage||Line plug standard|
|110-125V||UL817 and CSA C22.2 no 42|
|220-230V||CEE 7 page VII, SR section 107- 2-D1/IEC 83 pg C4|
|240V||BS 1363 of 1984 Specification for 13A fused plugs and switched and unstitched outlet plugs|
There are 2 basic internal sections to the M3, the digital input and processing section, and the analog and PCM DAC section, featuring our pure Native DSD conversion and optional use of analog level control.
This is the center section of the unit; depending on options, it provides 4 or 5 digital inputs selectable from the front panel. This section has its own linear power supply and is isolated from the analog section, providing excellent low noise performance and helps to eliminates digital noise from entering the analog chain via the power supplies and ground plane. This section features an Analog Devices Shard DSP that is used to run the front panel, general DSP operations of the M3, to control and synchronize the DDS clocking, and to provide a selection of our own over sampled anti-aliasing filters .
On the left side of the M3 you will find the analog outputs. Both channels are powered by a separate linear power supply insuring clean double regulated low ripple power and isolation from any digital noise from the digital supply.
There is a single multi-layer PCB for the analog conversion and analog output stages. The M3 has pure analog DSD conversion and analog level control yielding a pure analog path when using the M3 as an analog line stage, the signal then passes to the output buffer .This analog stage is also used to manage the pure DSD audio path as no digital signal processing can be done on a true DSD signal; as a result we maintain a true pure DSD converter. For PCM conversion the M3 also employs 2 Analog Devices 1955 DACs, clocking and analog output buffers. Clocking is precisely delivered with a DDS clocking circuit located millimeters away from the DACs, assuring extremely low jitter and minimal trace length for the clock signal and precise clock synchronization and timing handled by the Sharc DSP on the main digital processing board.
The M3 is a fully differential analog design with fast high slew rate fast settling analog operational amps used in all audio paths, for both balanced and unbalanced, each separately buffered and isolated. The balanced output level will reach a maximum of +16.5 dbm and the unbalanced of 8dbm with the front panel controlled analog attenuator set at full scale of +8 dB. With the M3 level control set to 0db the balanced analog out is +13.5db
On the rear panel the M3 has a stereo connector (Tip/Ring/Sleeve) for the trigger out of M3used to place and external device like our M15 power amp into standby. Tip is connected to chassis ground, the ring is +5v trigger. Trigger functions can be set in the status menu for trigger in trigger out or trigger remote for exclusive remote control from another device or system.
The front panel has a large, simple, easy to read display, an encoder for adjusting and selecting settings, 6 keys that are labeled for their use, and a power stand-by switch that will set the M3 in to low power mode and mute the analog outputs. There is an IR receiver built in to the left side center of the display for using the optional M3 remote controller.
Looking at the rear you will find on to the left in the picture, the left and right analog outputs, each with its own balanced and unbalanced connectors. To the right is the digital input section, there are the 4 digital audio inputs as standard, AES, SPDIF, To slink, and USB and the optional RJ 45 network connectors. There is a small jack below the circuit breaker and this is for a trigger out to remotely place a power amp into like the M28 into standby. The main power on/off switch are at the rear, note that the front panel standby button is used to set the M3 low power stand by. Full power on off is done from the rear panel. There are no fuses in the M3 as safety is insured by the use of a rear panel mounted circuit breaker.
The AC power is connected at the rear of the unit; the filtered AC inlet also has the main power on-off switch. This filtered inlet helps provide clean AC power to the M3’s power supplies and as well will prevent any digital noise from the M3s digital processing section from going back out the AC inlet to contaminate the mains. Take note that the M3 utilizes linear power supplies so care should be taken to use only the power range indicated on the unit otherwise damage can occur to the power supplies and other circuits in the M3. Please note and adhere to any voltage indications on the outer box, rear panel or chassis all of which will indicate how the M3 is set at manufacture.
The main AC power switch is at the rear and the front panel switch is a low power consumption stand by switch. For complete power on of you must cut power with the rear panel switch or from an external AC power on off switch that may be used to power other devices in your setup.
Connecting the M3 and power up
When you power up the M3 it has 2 possible states. If it was last used with the level control set 0db it will power on to the status mode and show what input is selected and sample rate. If the level has been changed to anything other than 0db it will power up to the level control page and last level set. The default from the factory should be set to a nominal level of 0db as the M3 is a DAC with the option to use it as a line stage the M3. Connect the M3’s analog outputs either balanced or unbalance to the appropriate inputs to your pre amp or power amp using high quality cables and connectors. Care should be taken with levels before playing any music to avoid too high a level to the power amps and speakers, especially if you will use it to directly drive the power amps as you will have to reduce the level from the preset of 0db.
Analog Level Features
The M3 can be used as a pure and direct DAC and used with a preamp or used as a line stage to drive the power amps directly using its analog level control. When using the M3 as a DAC the front panel level control should be set to 0db. At this setting the analog signal path will be direct from the chosen DAC (NDSD, Sigma Delta) with a hard wire bypass to the analog output stages, level control is then done with the chosen preamp. When the level is changed on the front panel away from 0db this will automatically engage the analog level control circuity and allow for use of the M3 to connect direct to a power amp with no loss bits in the digital domain. Range of control is from -99db to + 6db in one db steps.
There are 6 front panel keys from left to right: input, status, level, balance, reference and mute.
On the rear panel you will find the USB 2 type interface and it is based on the latest generation of asynchronous design and supports sample rates up to 384k/24 bit PCM and DSD 256 as native format. For superior noise performance the interface is electrically isolated from the host computer, eliminating any grounding or power induced noise issues that could be transmitted to the M3 from the computer. No driver is needed for Macs or Linux but for PC use a driver is necessary and the latest version for Windows can be acquired from our website in downloads section.
Optional Network Interface Features
On the rear panel you will find the RJ 45 Ethernet connector. This connector is for using the M3 as a DNLA compatible network player. When The M3 is connected to a network router it will appear as a player in the media
player and server that it’s connected to as a device to “play to” from the server. This server can be a PC or even an
android type UNpN or DNLA network player installed on your pad or phone. The M3 player is also known as a
“renderer” or “streamer”. To set this up your server application must have network sharing functions enabled and there is no need to down sample and should be set to play native sample rates. The M3’s player supports sample rates up to 384k PCM and DSD128.
DSD playback and the M3
DSD playback with the M3 is done via DoP when using the AES or SPDIF inputs, and Native or DoP for USB. DoP is DSD over PCM and for DSD 64 is the 1 data bit stream embedded in a 176.4k 16 bit PCM data stream with the extra 8 bits out of the 24 bits used for identifying that it is DSD not PCM. This is true DSD and not PCM conversion. When using a computer audio setup and USB, the media player can be set to send out the DSD as native or DoP but only native will function for DSD 256 rates.
The M3 features 2 digital audio conversion paths, 1 for PCM which utilizes a sigma delta type, and for DSD is a true one bit modulator of our own design and unique to the industry. This DSD conversion is a true 1 bit analog converter followed by an analog post noise filter. The result is a true a pure DSD play back unlike any other converter in the market. It is recommended that this feature be selected in the status menu labeled NDSD, setting to DSD PCM will use the ADI 1955 as the multi-bit converter which will impart a different sound character..
To use it all you need is DFF or DSF files, the M3 can accept them as DoP and Native data streams to play them with any input. When DSD is received for playback the status and filter displays will read DSD, and when it next plays a PCM file it will revert to your last used PCM filter and display will update accordingly. Playback is seamless as any other PCM sample rate change. If the M3 does not display DSD when playing back DSD source then check your media player settings for DSD and insure that it is being sent as DoP if using the AES or native if attempting to play DSD256 with USB.
When using USB and the LAN the M3 supports DSD 64, one bit at 64 times 44.1k sample rate, and DSD 128 or double that rate and DSD 256. DSD 64 is the SACD standard and 99% of all content is released and mastered at this rate.
When selecting NDSD DSD setting, the DSD post noise filtering is done in the analog domain so there are no DSD filter settings. An artifact of DSD processing is the buildup of ultrasonic noise and with DSD 64; this noise starts at 24 kHz and rises to peak level at -50 dB at 50k and beyond. In the M3 set to NDSD DSD this filter is implemented with a simple low order low pass analog filter for the very best sonic performance.
A great source for DSD downloads is: www.channelclassics.com
There are 2 types of filters that can be chosen for PCM playback, a Minimum Phase and Linear Phase Below is a table showing the difference in the 2 filters and for each type, Linear and Minimum. Table of filter characteristics at 44.1khz
|44.1khz||Passband||Stopband||Passband ripple||Stopband attenuation||delay|
The M3 uses delta sigma 8 x oversampling conversion so it is not recommended to “up-sample” the digital audio that is being sent to the M3 within a media player option. Defeat all up-sampling features in your media player or CD transport. Up-sampling the data before the M3 will yield poor results and always use the original source audio bit and sample rates, so for example if the source is 44.1k then have the media player send this data unprocessed to the M3and let the M3 reconstruct the data correctly.
The Optional M3 Remote
The M3 has the option to be supplied with a dedicated IR (infrared) remote control. This is a simple remote and allows for most commonly used functions of the M3 to be controlled remotely from your listening position. This is an IR device so it is important that line of sight to the M3 front panel where the IR receiver is mounted is maintained. With any device like this there are distance and parallax limitations. For example if you are far off to one side, too high or low, or too far away then the remote may not work correctly and there will be errors in the light emitted pulses causing missed or wrong data. Be sure to be within reasonable distance, about 25’ and within a + or -45 degree angle from the front panel. Operation has the same paradigm as the front panel control, with all the same labeled functions for both.
Replacing the remote batteries
The remote comes complete with batteries installed but in the event you need to replace them here simply open the casing of the remote with a 5/64” hex key and remove and replace the batteries noting the polarity marking on the battery holders.
Inside the remote with one partially inserted battery showing correct polarity
Balanced Analog Outputs
Unbalanced Analog Outputs
|Bricasti M3 Digital to Analog Converter [pdf] User Guide|
M3 Digital to Analog Converter, M3 Analog Converter, Digital to Analog, Digital to Analog Converter, M3 Converter, Converter
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