Don, you can expect break-in to last anywhere from 600 hours to 1500 hours with your new amps.... Initial performance is almost always limited in the treble region. During breakin, performance is expected to fluctuate wildly, and become occasionally bothersome... but performance will trend upwards in the longer run and anomalies will disappear.
A popping sound on power up is common with amps that do not use a soft start relay, and a clicking and slight popping is also possible when you rapidly increase volume on the pre, particularly when approaching or passing beyond unity gain... Good idea to check in with Dennis though.
G. |
Any thoughts about what core amps are used in the D-sonics M3-2000-5 (5 channels) 5 x 400w & M3-2800-7 (7 channels) 7 x 400w amps? |
Mikela8, if you contact Dennis at D-Sonic, he might tell you which modules are being used in the amps. G. |
Thanks G. Just spoke to Dennis, they are Pascal. I just ordered 3 M3-600M-A, 1 M3-2000-5 and 1 M3-2800-7 for a 16 channel home theater system based on the Trinnov Altitude32. LCR are 3 SM60Fs. Surrounds are 8 inch coax TBD. I am currently comparing the Reaction Audio CX-8's to my SM60F's to check for timbre matching. I am also considering designing my own surrounds atmos/auro with the BMS 8CN552. The SM60F's use a similar BMS coax at their apex.
Mike |
Hi all,
Just thought I'd share an update I recently posted on Dec. 23rd of 2014. It was on a thread I originally started months ago on my new class D amp quest called "HYPEX,PASCAL OR ABLETEC". Here it is:
12/23/14 Update:
I received my D-Sonic M3-600M monoblocks, containing the Abletec ALC-1000-1300 power modules, a few weeks ago. My original plan was to place each amp on the carpeted floor atop spiked maple amp stands 6" inside each speaker. To increase vibration isolation, however, I bought a low rise audio cabinet to accommodate both amps. This rack is low (only 14" tall)and wide (5 ft) and has a maple wood top with front pull-down doors that conceal my surround amps. The rack sits directly below a wall-mounted 65" hdtv, which leaves a 10" space between the top of the maple rack platform and the bottom of the tv above. One amp, each atop its own maple amp stand with brass cone footers, is positioned on each end of the rack platform near each speaker, with my source positioned between the amps.
After delivery, I started to break them in slowly using satellite tv with a 1-2 hour exception that evening when we watched a war movie, "Lone Survivor", on HBO when I had the volume set at about theater level throughout. The new amps sound very similar to my former ClassD Audio 440CS amp, with a dead quiet background and an accurate sound but with even more detail and much more powerful dynamics. These amps definitely excel in ht duties since they are very powerful, run cool and are relatively small.
I've played almost all of my familiar music on these amps over the past 2 weeks, stored as APE files for cds and FLAC files for a handful of 24bit/96khz downloads. I would characterize the music playback as very smooth but with very good detail at the same time. My previous amp had these same qualities but I have the sense that the noise floor is now even lower with the D-Sonics and this made the smoothness and detail of the sound more obvious. Clear improvements were evident in the sound stage illusion and dynamics. The sound stage was just as wide and deep but images are more solid, dimensional and stable. I;m now able to concentrate on individual musicians/instruments and distinctly hear variations in tone and volume on good recordings. This is new to me and I find it really adds to my musical enjoyment. The D-Sonics produced the same illusion of 'being in the room', or 'the musicians being in my room', as my former amp did but with even more intensity and realism. The In general, I'd say the new amps have elevated my system's music playback performance, and my enjoyment, by a significant amount.
I stated previously that I'd update at regular intervals and report on changes I notice as the amps 'break-in'. However, I honestly haven't noticed any changes in performance thus far. Either there's been no audible changes yet or my hearing may not be as sensitive as I thought. It could be the aging process,I'm 56 now, and can't remember my last hearing test. Anyway, I'm not going to stop listening to music, so I'll try and stay alert for any subtle changes I notice and report back when I do on this thread.
Over the past few months, I've also been involved in trying to upgrade my system's bass performance. It's still fairly good, but I'm using a 20 plus year old Synergistics passive sub to augment the bass response for speakers that only go down to 37 hz. I purchased a replacement bass system that is scheduled to arrive within the next 2 days. It consists of 4 67 pound passive subs powered by a separate amp. After an extensive search, I bought James Romeyn's demo DEBRA bass system that entails a fairly elaborate setup procedure.
If anyone's interested, I'll probably be starting a new thread on this bass system in the next few days. The system claims accurate bass response down to 20hz,+ or-/3db or less. I'll be using this for both ht and music. The pictures and description listed on the link below are of the demo system I bought:
Go to www.jamesromeyn.com. Click on "Audiophile Gear" and then on "DEBRA Bass System". that thread
I don't want to update this thread every time I update my original thread since it would be too redundant and confusing. I will continue to follow this very interesting thread but this will be my last post where I copy and paste updates from that thread. Just in case anyone's interested.
Thanks,
Tim
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My Bryson 9b runs a little to warm for my current set up, seriously thinking about a channel d sonic. Do they run warm I need cabinet placement
Thanks |
Kbuzz:
"My Bryson 9b runs a little to warm for my current set up, seriously thinking about a channel d sonic. Do they run warm I need cabinet placement"
Hi Kbuzz,
My D-Sonic M3-600M amps, even after hours of high volume usage, never get above luke-warm to the touch. I think these, or most any class d amps, are ideal for cabinet placement. Low heat is one of the main advantages of class d amps.
Will they sound as good as your Bryston? I've never used your specific amp, so I cannot say; but I can say these amps are superior, in every meaningful performance category, to my previously owned class A/B Aragon 4004 amp that I considered decent, even though it weighed 85 lbs. and could get hot to the touch. The D-Sonic weigh 15 lbs. each and never get hot. To be fair, however, my D-Sonics are in well ventilated positions atop amp stands on an open/top rack shelf. I use another class d amp, a ClassD Audio 440CS amp in bridged mono mode, in a totally enclosed rack position for a cc and it never gets more than luke-warm, either.
There are several class d stereo and mono amps, at good prices, that would be good fits for your needs.
Tim
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I just picked up a 3 channel D-Sonic and while it's not cold to the touch, it runs cool. |
In general, as class D amplifiers are 85% to 96% efficient, they run cool to moderately warm to the touch. There are few exceptions, like the Rowland Continuum 500 -- since withdrawn, which are toasty to the touch. |
I recently received 3 D-sonic M3-600M-A's, 1 M3-2000-5 and 1 M3-2800-7. Since my theater is under construction, I temporarily set up 2 of my Danley SM60F's on bar stools in the living room and all I can really say is WOW! |
I recently received 3 D-sonic M3-600M-A's, 1 M3-2000-5 and 1 M3-2800-7. Since my theater is under construction, I temporarily set up 2 of my Danley SM60F's on bar stools in the living room and all I can really say is WOW! |
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Hi Mikela8,
Congratulations, seems like you have your new theater's amplification covered. I think you made a very good decision going with D-Sonic amps; detailed, neutral, dynamic and effortless sound emerging from a dead quiet background produced from small, lightweight boxes that only become mildly warm no matter how hard or long they're driven. Ideal, high-end and amplifiers for both HT and music at budget prices.
Enjoy,
Tim |
Has anyone done a comparison on the following 2 amps?
1.Class D Audio SDS-470C ($700), 300W
2. D-Sonic M3-800S ($1,375), 400W
I have a feeling that D-Sonic is better, but I wonder how significant is the difference in sound quality. Worth the extra $700? Thanks. |
Respected/Roger,
I haven't compared these 2 amps directly but have indirectly:
I own, and previously used a Class D Audio SDS-440 as my main amp in my system. Class D audio's owner, Tom Ross, told me my amp and the SDS-470C amp sound very similar.
I currently use a pair of D-Sonic M3-600M mono-block amps in my system. These amps use Anaview/Abletec power modules and the D-Sonic 800S amp use Pascal modules. D-Sonic's owner, Dennis Deacon, has stated the Anaview/Abletec and Pascal modules sound very similar.
So, given the above, I'll describe the differences I noticed between the CDA 440 and the D-Sonic M3-600M amps:
Both are neutral in character and have smooth but also very detailed midranges and treble. Although the CDA440 has above average bass response and dynamics, these are the 2 areas I noticed were superior with the D-Sonic M3-600 amps. D-Sonic's bass is more extended, textured and detailed. I can discern different bass instruments more easily and clearly now.
D-Sonic's dynamics are also better. I can now clearly discern volume and tonal changes on individual instruments and vocals within the sound stage while these changes are more massed through the CDA amp.
The D-Sonic's soft to loud dynamics are also strikingly improved, which is very noticeable on HT and well recorded music (usually much better on hi-resolution omputer audio FLAC files at 24bit/96khz). However, the increase in power from the CDA's 440 watts to the D-Sonic's 1,200 watts per channel may be a main cause.
These improvements are subtle but very enjoyable. You'll need to decide if bass and dynamics gains are worth the extra money. Remember, this is not a direct comparison of the amps you're considering so your mileage may vary.
In my opinion, both of your amp choices are extraordinary audio bargains, delivering excellent performance at a very reasonable price. I think you'd enjoy either one and maybe you could just let your tastes and budget decide.
Hope this helped a bit,
Tim
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It appears there is a Anaview Tsunami coming. I was informed in a conversation several weeks ago with Robert Cohrs, the new U.S. regional West Coast Sales Manager for Anaview, that just under 25 U.S. electronic manufacturing companies have purchased quantities of the new Anaview power modules during the past 12 months. Robert would not disclose any of these audio companies since NDA's were signed with Anaview. |
I have 4 class d audio SDS 470 amps that I have bridged for mono operation in 2 systems- - so should be about similar to the d-sonic in power. I noticed a difference and certainly am very happy with the sound. My reference point is an Atma-sphere MA-2, which I had in my tube amp days, and, with world class preamps (C-J, TRL Dude) I don't feel I'm missing anything of what the MA-2s gave me! The Class d amps paired with high quality tube preamps are, to me, a perfect combination. And a bargain, for sure! |
HI ALL, PLEASE VISIT YOUTUBE. HERE ARE MY 2 VIDEOS OF D-SONIC M3-1500M SOUND.
https://www.youtube.com/watch?v=21CyWXtFsQ0
https://www.youtube.com/watch?v=nu0iGAEaG-c |
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Syot, what are the components in your system?
. |
Hi Mitch4t , THEY ARE...........
CD TRANSPORT - C.E.C.TL3N
D/A - JEFF ROWLAND "Aeris"
PRE AMPLIFIER - BLUE CIRCLE BC3000MkII
POWER AMPLIFIER - D SONIC M3-1500m
LOUDSPEAKERS - TYLER ACOUSTICS "woodmere"
Digital cable - Siltech "Golden Ridge"
Balance cables : from d/a to preamp , preamp to poweramp ARE PURIST "Venustas" |
Syot,
Very nice system. Both of your Youtube videos sounded very good even on my laptop with headphones, amazing.
Your room also looks very nice although the room is quite dark. I'm finding it difficult to make out everything; I can see the Rowland DAC but don't know what's directly above it.
I like your room treatments, too. Can you tell me what wall diffusor panels you're using and how much they cost?
Thanks,
Tim |
TIM...THANKS FOR YOUR COMMENT.
I USED ASC "TUBE TRAP" , ASC "SOUND PANEL" , RPG "SKYLINE"
SORRY TIM, I CAN'T REMEMBER THE PRICE OF THEM. |
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Syot, enough with the all-caps, ..no more...please.
We see your posts and will read them.
No need for the all-caps.
. |
Thank you, Syot.
Mitcht is right, no need to SHOUT since we're all here listening.
Tim |
