B.dpr EX
DAC / PREAMPLIFIER / STREAMER / SERVER
Enhanced version of the B.dac EX, the B.dpr integrates an additional 100% analog pre-amplification stage built with components of the highest quality. Digital losses are by construction non-existent, and the conversion circuits are used at their optimal operating point.
The B.dpr EX features analog, balanced and coaxial inputs allowing the connection of up to 3 additional analog sources.
Full elimination of source jitter
The B.dpr EX features our patented SJR “Source Jitter Removal” technology which provides the best possible D/A conversion, from every source, by fully eliminating all imput jitter without the need of external clock link. The pre-amplification stage is done by a relay-driven resitor network that avoids any interference on the signal.
Design
Reflecting its exclusivity the B.dpr EX relies on a modern and sleek design featuring a machined aluminium front panel with integrated ball-bearing mounted rotary knobs.
Network functionalities
The available features include:
– access to streaming services (Qobuz, Tidal, Spotify …) via compatible iOS and Android applications
– compatibility with protocols UPnP, MPD, LMS, NAA, Roon, Airplay, Spotify
– playback of various formats: PCM up to 384kHz / DXD / DoP / native DSD up to DSD 256
– integrated UPnP server (makes data stored on USB media accessible over the network)
Analog inputs
The B.dpr features two unbalanced inputs (RCA) and one balanced input (XLR). Thanks to the analog volume control stage, the signals coming from these inputs are processed completely in the analog domain.
Acoustic correction
The onboard DSP features parametric acoustic correction to help make the most of the room and speakers. In-house developed, this functionality is based on a 64-bit architecture. The overall gain is determined automatically without user intervention, which guarantees the absence of saturation regardless of the parameters used. These specific features preserve the signal quality, thereby ensuring an optimal result.
Remote control
Each B.dpr EX comes with a custom-made remote control made of massive aluminium.
REVIEWS
Image Hifi – B.dpr EX review
Read the review here:
https://www.b-audio.com/media/B_audio_B_dpr_ex_test_image_hifi_2_23.pdf
B.dpr EX & B.amp reviewed by Hi-Fi Voice : Editor’s recommendation!
“B.audio can be recommended to all those who appreciate the beauty of music above all, giving them the possibility to enjoy it for a long time without fearing the slightest fatigue, as hours fly by while listening to the B.dpr EX / B.amp set, and we don’t even know how…”
B.dpr EX & B.amp reviewed by Le Beau Son
Read the review here:
https://www.lebeauson.fr/a-l-oreille/215-b-audio-b-dpr-ex-b-amp-l-air-pur-et-les-clairs-obscurs-des-forets-alsaciennes
Image Hifi – B.dpr & B.amp review
Read the review here:
https://www.b-audio.com/media/B-audio_B_amp_B_DPR_Image-Hifi_150.pdf
Hifi IFAs review
Read the review here:
https://hifi-ifas.de/test-b-audio-b-dpr-vorverstaerker-dac-digital-analog-wandler
Reference award by Haute Fidélité
Read the review here:
https://www.b-audio.com/media/Haute%20Fid%C3%A9lit%C3%A9%20230%20%E2%80%93%20banc%20d%E2%80%99essai%20B%20dpr.pdf
SPECIFICATIONS
GENERAL | |
Power supply | Factory set : 220-230V or 100-115V, 50-60Hz |
Dimensions | 450x375x91mm |
Weight | 7,4kg |
TECHNICAL | |
Power stage total capacity | > 80 000µF |
Power stage regulation | custom designed |
Conversion type | multibit sigma-delta |
Clock management | patented SJR technology |
STREAMER / SERVER | |
Connectors | 1x RJ45, 1x USB DATA |
Streaming protocols | UPnP, MPD, LMS, NAA, Roon, Airplay access to streaming services (Qobuz, Tidal, Spotify, …) via compatible iOS and Android applications |
Supported formats | PCM up to 384kHz / DXD / DoP / native DSD up to DSD 256 gapless playback with compatible control applications |
Integrated music server | UPnP / Openhome compliant |
ACOUSTIC CORRECTION | |
Architecture | 64-bit DSP |
Specifications | 8x parametric filters with automatic gain adjustment |
DIGITAL IN | |
Connectors | 2x SPDIF, 2x Toslink, 1x AES/EBU, 1x USB (type B) |
USB (type B) | |
operating mode | asynchronous |
Supported format | PCM (incl. DXD), DSD, DSD over PCM (DoP) |
Sample rate (PCM) | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz (DXD), 384kHz |
Word length (PCM) | 16, 24, 32 bits |
Data rate (DSD) | 2.8224MHz (DSD64), 5.7648MHz (DSD128), 11.2896MHz (DSD256) |
Data rate (DSD over PCM) | 2.8224MHz (DSD64), 5.7648MHz (DSD128) |
SPDIF and AES/EBU | |
Supported format | PCM |
Sample rate (PCM) | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
Word length (PCM) | 16, 24 bits |
Toslink | |
Supported format | PCM |
Sample rate (PCM) | 44.1kHz, 48kHz, 88.2kHz, 96kHz |
Word length (PCM) | 16, 24 bits |
ANALOG IN | |
Balanced | |
Connectors | 1x XLR |
Input impedance | 47 kOhms |
Unbalanced | |
Connectors | 2x RCA (pair) |
Output impedance | 47 kOhms |
ANALOG OUT | |
Balanced | |
Connectors | XLR |
Output impedance | 100 Ohms |
Unbalanced | |
Connectors | RCA |
Output impedance | 75 Ohms |
VARIABLE OUTPUT LEVEL | |
Balanced | -80 to +0 dB, 64 steps |
Unbalanced | -80 to +0 dB, 64 steps |