Balanced Music Concept Owner’s Manual www.bmc-audio.
Quick Start ON INPUT AES USB TOS COAX VOLUME VOL-HP ON 4 MUTE MUTE DSD Power Input Selector Volume Line Mute Line Mute Headph. ANALOG OUTPUTS BALANCED Volume Headph. Headph. Standard Headph. Balanced DIGITAL INPUTS AC LINE RCA L B.M.C. LINK B.M.C. Audio, Germany TOS OFF ON WEEE-Reg.-No.: DE18339144 R SERIAL: XLR Analog RCA Analog Output Output COAX USB B.M.C.
Table of Content Introduction, packing list 3 Front Panel Functions 4 Rear Panel Functions, B.M.C.
Introduction Thank you for purchasing B.M.C.’s PureDAC and congratulations on choosing this exceptional component. The PureDAC represents an entirely new type of component designed to maximize the musicality of modern digital audio sources in addition to providing the highest possible performance to users of topquality headphones.
Front Functions ON INPUT AES USB TOS COAX VOLUME VOL-HP ON 4 MUTE MUTE DSD POWER Press for powering the unit on and off. INPUT Press for changing the active input. Each press moves down one input step displayed at VOLUME: LINE Adjust the volume level for the either the balanced XLR or the unbalanced RCA output. Refer also to the section B.M.C. Link. The volume position is indicated at MUTE: LINE Toggles the line output mute on and off.
Rear Panel Description ANALOG OUTPUTS BALANCED DIGITAL INPUTS AC LINE RCA L B.M.C. LINK B.M.C. Audio, Germany TOS OFF ON WEEE-Reg.-No.: DE18339144 R SERIAL: COAX USB AES/EBU 230V~ / 50Hz, 24W AC LINE Power cord terminal. Connect only if the indicated AC line voltage matches to your local voltage. AES / EBU Balanced AES / EBU digital input for 110 Ω XLR interconnect. 44.1kHz, 48kHz and 96kHz are supported. TOS Optical digital Toslink input. 44.1kHz, 48kHz and 96kHz are supported.
Remote Control Handset VOLUME: Headphone Section Adjust the volume level for the either the balanced 4-pin-XLR or the unbalanced ¼” terminal. MUTE: Headphone Section Toggle the line output mute on and off. VOLUME: LINE Adjust the volume level for the either the balanced XLR or the unbalanced RCA output. Refer also to the section B.M.C. Link. INPUT MUTE: LINE Toggle the line output mute on and off. INPUT Press to change the active input. Each press moves down one input step.
USB Operation DSD DSD support is not offered by the original USB 2.0 audio standard. A DSD file has to be “camouflaged” so it appears to the DAC as a PCM file and thus can be used with USB audio. This is called DSD over PCM (DoP). The firmware in the PureDAC detects such files and restores the original format. Audiophile File Formats The most popular format for lossless Audio is by far FLAC.
USB Connection USB2 B-Type USB Interconnections The PureDAC requires a cable terminated with a USB 2 or USB 3 “B” type connector. The computer side depends on the type of computer. For use with a standard laptop or desktop computer the “A” type is preferred. USB2 A-Type For USB audio the interconnecting cable quality matters. We suggest making a listening test yourself in order to determine what cable best suit your taste. The interconnection should be not too long and should not have any ferrite beads.
Headphone Amplifier DAPC The headphone amplifier section of the PureDAC is a unique and advanced design. A precise description of its function would be “Digital / Analog-Power-Converter” (DAPC). This means there is no additional amplifier stage and the headphone amp’s voltage is generated from a special type of I/V converter, which is an integral part of the DAC.
Balanced Headphone Drive What is Balanced Drive? In all stereo headphones there is a driver for each ear which is directly wired to the headphone plug. A headphone is a passive device, so an amplifier must supply the electrical energy to make it work. Most amplifiers have a single active output delivering the music signal related to a static ground. The ground is shared for both channels, for the power supply and the other components using electricity inside the device driving the headphones.
Connection Diagrams Connecting PureDAC to a B.M.C. Amplifier ANALOG OUTPUTS BALANCED DIGITAL INPUTS AC LINE RCA L B.M.C. LINK B.M.C. Audio, Germany TOS OFF ON WEEE-Reg.-No.: DE18339144 R COAX SERIAL: USB AES/EBU SPEAKER INPUT SECTION BALANCED 1 RCA 230V~ / 50Hz, 24W B.M.C. Audio Germany BALANCED 2 L WEEE-Reg.-No.: DE18339144 AC LINE OUT IN B.M.C. LINK R RIGHT LEFT 230V~ / 50Hz, 60W-300W SERIAL: For connecting the PureDAC to a B.M.C.
Connection Diagrams Connecting PureDAC to Other Brand’s Equipment ANALOG OUTPUTS BALANCED DIGITAL INPUTS AC LINE RCA L B.M.C. LINK B.M.C. Audio, Germany TOS OFF ON WEEE-Reg.-No.: DE18339144 R SERIAL: COAX USB AES/EBU Amplifier with XLR inputs, or active speaker with XLR inputs 230V~ / 50Hz, 24W Active Subwoofer with RCA inputs For connecting the PureDAC to any standard amplifiers or active speakers follow these steps: Ü Connect the analog XLR output to the amplifier’s XLR inputs.
Connection Diagrams Connecting PureDAC to Active B.M.C. Speakers ANALOG OUTPUTS BALANCED DIGITAL INPUTS AC LINE RCA L B.M.C. LINK B.M.C. Audio, Germany TOS OFF ON WEEE-Reg.-No.: DE18339144 R SERIAL: COAX USB AES/EBU 230V~ / 50Hz, 24W For connecting the PureDAC to an active B.M.C. speaker like the PureVOX-A we recommend that the B.M.C. Link be used for best quality sound. Ü Connect the analog XLR output to the speaker’s XLR inputs. B.M.C.
Connection Diagrams Connecting PureDAC to a Balanced Headphone ON INPUT AES USB TOS COAX VOLUME VOL-HP ON 4 MUTE MUTE DSD For connecting a balanced headphone to the PureDAC, use the front panel’s 4pin XLR headphone terminal. The headphone must be wired properly and should not use any adaptors. 4-Pin Balanced XLR Headphone Terminal Connect a Headphone for balanced mode operation to this plug.
Troubleshooting Whenever you suspect a malfunction of the unit, please first check a possible cause by proceeding the below list, before contacting your local dealer or the B.M.C. Audio service. No Function or Display Ü Check the AC-power cable is connected at both sides. Ü Make sure there is AC power available at the wall outlet. Ü Check the power switch position.
Safety Information Explanation of the used symbols: The lightning flash with an arrowhead, encircled by a triangle, is intended to alert the user to potential hazards of electric shock within the product's enclosure. The exclamation mark, encircled by a triangle, is intended to point out to the user that there are important operating and maintenance (servicing) instructions in this manual. Caution: To reduce the risk of electric shock, do not remove the cover or rear panel.
General Safety Precautions 1. Read this owner's manual. 2. Keep the owner's manual. 3. Pay attention to all important safety information an warnings. 4. Follow the manual instructions. 5. Never use the unit close to water or in a humid surrounding, like basins, a humid basement, swimming pools... 6. For cleaning use a dry micro fiber cloth exclusively. 7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
CE / FCC Declaration, Recycling CE Declaration of Conformity B.M.C. AUDIO GmbH declares that this product is in conformance with the Low Voltage Directive 73/23/EEC and Electromagnetic Compatibility 89/336/EEC as amended by 92/31/EEC and 93/68/EEC.
Technical Specifications USB Input Compatibility PCM: 16-32 bit, 44.1 kHz-384 kHz; DSD64, DSD128 SPDIF Input Compatibility PCM only: 16-24 bit, 44.1 kHz, 48 kHz, 96 kHz Frequency Response 44.1kHz 5 Hz - 21 kHz (soft roll off digital filter) Frequency Response 96kHz 5 Hz - 46 kHz Frequency Response 192kHz 5 Hz - 80 kHz THD+Noise, 1kHz / 0dbFS, Line XLR 0.005 % THD+Noise, 1kHz / 0dbFS, Line RCA 0.007 % THD+Noise, 1kHz / 0dbFS, HD-Bal. 0.006 % Signal-to-Noise, vs.
