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  #41  
Old 03-14-2019, 12:11 PM
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Originally Posted by SCAudiophile View Post
I've talked with several Aida owners and of course heard them in Mecca (Ivan's house ). The essential and common element seems to be tri-amping in general. Sure, 1000, 1050, 1500 with 3x the same amp are all good numbers but you could also tier them from bass on up from what Ive been told by 2 other owners. Matching amps' sound sigs is key...
I agree. The sound signatures are key, and I love the D'Agostino Momentum sound.

One more Momentum might be do-able now, but 2X more will have to wait until I get rid of some of the surplus speakers around here!

Steve Z
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DíAgostino Momentum S250 amp, Momentum HD preamp, Momentum phono, Sonus Faber Aidas in gorgeous graphite, stereo SVS SB16 Ultra subs.

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  #42  
Old 03-14-2019, 12:21 PM
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Originally Posted by For The Love of Music View Post
Good to hear your excitement!

Why would your watts double from 500 per side, making 1000 and not just be 500? Separate amp, separate power.

Mind you 500 is plenty IMO
Thank you. Did I sound excited? Me?

An S250 is 250 watts per channel into 8 ohms. 500 watts per channel into 4 ohms, which is what the Aidas are.

So a second S250 is another potential 500 watts per channel.

Hey, I'm just using "Ivan Math" -- 350+350+350=1050, aka Bliss!

Steve Z
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DíAgostino Momentum S250 amp, Momentum HD preamp, Momentum phono, Sonus Faber Aidas in gorgeous graphite, stereo SVS SB16 Ultra subs.

Shunyata Triton v3 & Typhon QR, Typhon. Shunyata Sigma NR cords and cables, Stillpoints ESS grid system rack, Stillpoint Ultras, ASC Tube Traps . . . and lots of music!
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  #43  
Old 03-14-2019, 12:49 PM
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Wow, absolutely stunning!
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  #44  
Old 03-14-2019, 01:28 PM
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Originally Posted by sid325 View Post
Wow, absolutely stunning!
Thank you. I'm finding myself wandering through the living room just for an excuse to look at the Aidas.

If I sit down "just to listen for a few minutes", it's all over -- hours go by before I can tear myself away.

Steve Z
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Teres turntable, VPI rim-drive, SDS, VPI 12" Fatboy gimabled arm, Grado Aeon, Dynavector XV1-S & Helikon mono; Taiko Audio Extreme, dCS Vivaldi DAC, Upsampler Plus and Clock, Cybershaft OP-21 reference clock, Playback Designs Pinot ADC.

DíAgostino Momentum S250 amp, Momentum HD preamp, Momentum phono, Sonus Faber Aidas in gorgeous graphite, stereo SVS SB16 Ultra subs.

Shunyata Triton v3 & Typhon QR, Typhon. Shunyata Sigma NR cords and cables, Stillpoints ESS grid system rack, Stillpoint Ultras, ASC Tube Traps . . . and lots of music!
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  #45  
Old 03-14-2019, 01:38 PM
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Quote:
Originally Posted by zettelsm View Post
350+350+350=1050...
I'm sorry but it doesn't quite work that way and your effective maximum power will be little more than using a single 350 w amplifier - that is assuming you come close to using all 350 watts. A great deal of normal listening occurs at 10 watts of less (depending on speaker sensitivity, distance to listening position, desired loudness etc).

Last edited by Masterlu; 03-14-2019 at 02:39 PM. Reason: Sorry, links to other forums are not permitted.
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  #46  
Old 03-14-2019, 02:43 PM
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Quote:
Originally Posted by 62caddy View Post
I'm sorry but it doesn't quite work that way and your effective maximum power will be little more than using a single 350 w amplifier - that is assuming you come close to using all 350 watts. A great deal of normal listening occurs at 10 watts of less (depending on speaker sensitivity, distance to listening position, desired loudness etc).
Eric... it does not work that way at all. Even bi/amping and tri-amping in the passive domain makes a Huge difference.

I have personal experience doing this for twenty plus years now. Not only is there a difference, but it is profound.

This has been confirmed not only by my ears, experts in the industry, and instruments as well.
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Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP560 CD/SACD PLAYER, T1200 FM STEREO TUNER, PS530 POWER SUPPLY, CANTON REF K3ís, CANTON REF K5ís, SILENZIO, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WIREWORLD GOLD CABLES
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  #47  
Old 06-24-2019, 09:24 PM
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best speaker I have ever witnessed! most beautiful color!
Enjoy to the fullest!
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  #48  
Old 06-24-2019, 10:03 PM
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Bi-amping does not effectively double the power. Problem being is that somewhere around 65-80% of power is actually soaked up by the woofers. You can say you have double the power and technically that is correct but the potential will never be realized or manifested as doubling of power since neither the mids nor the tweeters will ever dissipate the same power as the woofers.

However, bi-amping does provide more headroom for a cleaner reproduction of transients since the rail voltage does not sag as much from say thunderous bass passages.

If one amp is driving all the drivers and the rail voltage sags a bit from transients, well, it does take some "fraction" of a second to recover but the music doesn't wait. The soundstage starts to collapse and the sound can and does get a bit congested. That's way before you get to clipping.


With two amps and one of them working hard, it leaves the other amplifier to drive the mids/tweets with clean power reserves. Not to mention there is much less chance of blowing your drivers if only one amplifier is driving and clipping from too much enthusiasm and does not offer protection from DC clipping.

Technically the Horizontal bi-amping makes sense due to the reasons I mentioned above. The woofers are making the amp work hard and sag a bit but the other amplifier does not see that load.

With vertical biamping the whole amplifier still can sag from the woofers in that channel and has to recover which would affect the whole speaker unless the amplifier is truly dual mono with separate power supplies. That's not common for a stereo amp.

By far the most profound and efficient way to do bi or tri amping is with an active system. Problem being you would have to totally bypass the crossovers so the the best case scenario is a "system". I'm not very familiar with Bryston active systems but do they not offer something along those lines?
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  #49  
Old 06-24-2019, 11:57 PM
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Serge... how many speakers have you bi-amped? How many have you tri-amped?
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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) LUMAGEN RADIANCE SCALER, SONY VPH-G90U PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WIREWORLD PLATINUM CABLES
Reference System: ACCUPHASE A250 AMPS, C3850 PRE-AMP, DP950 CD/SACD TRANSPORT, DC950 DIGITAL PROCESSOR, DG-58 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WIREWORLD 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 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS, LUMAGEN RADIANCE SCALER, SONY VPH-G90U PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO, FORTRESS SEATING, WIREWORLD 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, WIREWORLD PLATINUM CABLES
Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1/D1 STACK, G01X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WIREWORLD PLATINUM CABLES

Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1 CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1ís, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QRís, WIREWORLD PLATINUM CABLES
Bryston/Esoteric System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS, SHUNYATA DENALI 6000/S v2(2) AMR-DP777-SE DAC, SILENZIO, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WIREWORLD PLATINUM CABLES
Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP560 CD/SACD PLAYER, T1200 FM STEREO TUNER, PS530 POWER SUPPLY, CANTON REF K3ís, CANTON REF K5ís, SILENZIO, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WIREWORLD GOLD CABLES
Bryston Active System: BP26 PRE-AMP, MPS2 POWER SUPPLY, BAX-1 CROSSOVER, BDA-3 DAC, BDP-3 PLAYER, BCD-3 CD PLAYER, BIT15(2), MODEL T ACTIVE SPEAKERS, 21B3 CUBED AMPS, SILENZIO, TARGET RACK, WIREWORLD SILVER CABLES

On Deck: ... EMM Labs DA2...
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  #50  
Old 06-25-2019, 09:48 AM
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I have bi-amped 5 pairs speakers over many years with great results. It does not however double the power. That is a common misconception.
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