#71
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Bp-17 dac
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The BDA3 also receives fantastic reviews (and test measurements to confirm them) How much commonality is there between the DAC board in the BP17-cubed and the BDA3? Thanks!
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Main - Roon on Synology/Sonos Port/SoTM Neo endpoints; Chord Qutest, Bryston BP-17 cubed with phono option; EAT C-sharp with Ortofon Bronze MM, Bryston cubed Amplifier; Revel F126Be on custom Atocha stands; interconnects by WireWorld, furniture by Atocha Design 'Phones Audeze LCD-3, Bryston BHA-1; Office: Sonos/Roon; OPPO HA-1, Naim NAP100 and PSB Mini-C. Media Room:, Samsung QLED QN90 series, Sonos, OPPO 205, ATI N-core driving KEF LS-50's with REL subs; furniture by Glassisimo; Kids - U-turn for vinyl, Sonos Play5; Summer Shack - Sonos, vintage Pioneer, Dynaudio Special 40's. |
#72
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They are similar in design. The BP17 uses one stereo DAC whereas the BDA-3 uses separate DAC's for the left and right channels. james |
#73
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Would consider the pair of XLR inputs & outputs a pretty big deal on BP17 compared to the all single-ended on the B135. Is a nice feature for those of us with balanced headphone amps.
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Glenn... Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag |
#74
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Hey all, new member - I've been eyeing the bp17 cubed for a while - but the other month I picked up a used BHA-1 FX (powered by the MPS-2) and while it works fine as a preamp right now, it got me thinking - "maybe I'm just better off going for the BP26". Any thoughts? The price would actually be about the same (maybe a bit cheaper overall for the BP26). Sure, it doesn't have some features (secondary balanced out or fixed level balanced out), but I don't know if I should kill myself worrying about that. I'm also under the impression that the signal path is summed internally for both preamps, so its not like my complete signal path from source to speaker would be balanced (of course correct me if this is inaccurate). I'm also under the impression that unless I have some real noise monsters, it may not matter.
Any thoughts would be appreciated. |
#75
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greenpsycho... Welcome to AA!
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Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES |
#76
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As you have the BHA-1 would think you (as I) would benefit from the 2nd set of XLR outs to run your headphones in balanced mode. Switching XLR cables from my BP-25 between the BHA-1 & 4B-ST is a pita.
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Glenn... Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag |
#77
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Hi
I think what he means is that some products have 2 separate signal paths from input to output. So the positive half of the waveform and the negative half of the waveform have independent circuits throughout (which doubles the cost). The only issue with this type of topology is the advantage of the Balanced inputs cancelling noise through common mode rejection is lost. All Bryston XLR inputs and outputs are fully balanced differential discrete circuits so they take advantage of the noise cancelling of CMR but will have a single signal path (positive and negative signals combined) after the Balanced input till it reaches the Balanced output. james Last edited by James Tanner - Bryston; 11-02-2018 at 12:11 PM. |
#78
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Quote:
I believe the BHA-1 will convert SE input to balanced output (both XLR and front panel headphones), so thats a potential work around - outputting line level SE to the BHA-1. Realistically, I need 3x outputs - 1x balanced preamp for my monitors, 1x preamp for another zone, and 1x balanced line level for my BHA-1. I'm using splitters and some other hacky fixes right now as I have my BHA-1 serve all these duties. I THINK the BP17 suites my needs more, I guess my question is are the qualitative differences enough that I should go for the "cheaper" BP26 and deal with the ergonomic shortcomings. Thanks all! |
#79
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Hi Folks,
Here's a little article I did on fully balanced circuits a while back. Is Your System Out Of Balance One question which keeps coming up over and over is the controversy regarding audio components being "fully balanced" versus what is sometimes referred to as "balanced converting to single ended" at the input of the electronic component (preamp, electronic crossover, amplifier etc). The correct term for this balanced converting to single ended is more accurately referred to as "differential amplifier balancing" Popular mythology has seen fit to 'bless' the concept of 'fully-balanced' (meaning of course, two completely separate signal paths through a component, with its attendant doubling of parts cost and complexity, and halving of reliability). This approach completely misses the place, which is, of course too eliminate hum and noise picked up by the audio cables feeding the component. The reason for this is that a differential amplifier rejects any common-mode noise which appears at its input, by a factor equal to its common-mode rejection ratio, (normally over 1000:1). A 'fully-balanced' circuit has a common-mode rejection ratio of precisely zero, since all signal, common-mode or not, is simply amplified and passed along via the two signal paths. It then remains up to the following component to attempt to reject that amplified noise, if it has a differential amplifier. Thus, fully-balanced circuitry is subject to passing along any noise which might be picked up on all the cables. Then it hits the final component in the system, usually the power amp, where the differential amplifier at its input is left to deal with the sum total of the common mode noise in the signal path, (multiplied by all the gain in the system). I don't think this is an ideal scenario. If each component, (source, preamp, electronic crossover, power amp), had its own differential amplifier input, it would cancel any common-mode noise which appeared ahead of it, rather than amplifying it. All the above simply points out that what has been called fully balanced circuitry has a host of disadvantages from cost to noise overload to complexity and reduction in reliability. It has no useful advantages in the digital or analog signal chain beyond the mic preamp. Also remember the above supports no need for ‘Fully Balanced’ from a performance standpoint. The 7B, 14B and 28B's are fully balanced because they are designed as ‘SERIES’ amplifiers not because they have a performance advantage. james |
#80
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I'm convinced........... just ordered a BP-17cubed from Ivan.
Will put my BP-25 in the classifieds shortly.
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Glenn... Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag |
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