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Shaman  
#1 Posted : Monday, March 23, 2009 11:57:47 AM(UTC)
Shaman

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I own a Buffalo DAC feeding an IVY output stage, all powered by TP power supplies.
Since there is plenty of action in Twisted Pear nowadays, I can't help but ponder on potential upgrades to the already great sound I get from my DAC.

Thing is that I'm kinda confused as to which upgrade path would be best performance-wise.
One option is to replace my IVY with Counterpoint boards (plus one more power supply and trafo for dual-mono action!).
Alternatively I could just sell the old Buffalo board + IVY and replace them with a Buffalo32S board (again using separate psu's for each IVY2).

Assuming money is not an issue, which option would give me the best sound quality?

Any input would be appreciated!

Edited by user Monday, March 23, 2009 12:01:12 PM(UTC)  | Reason: Not specified

Brian Donegan  
#2 Posted : Monday, March 23, 2009 12:06:57 PM(UTC)
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You might have to wait a bit for a good answer on this. Very few have heard the Counterpoint yet, and nobody has heard the Buffalo32S.
Shaman  
#3 Posted : Monday, March 23, 2009 12:19:21 PM(UTC)
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Thank you for the swift response Brian.
I was afraid you were gonna say that. To be honest I was hoping there'd be some clues based on simulations of both Counterpoint and IVY2 (even if it means taking out of the equation the SQ differences of the two Sabre "generations") and the never-to-be-underestimated engineer's gut feeling! Angel

Please keep us up-to-date!

Edited by user Monday, March 23, 2009 12:21:46 PM(UTC)  | Reason: Not specified

pelliott123  
#4 Posted : Tuesday, March 24, 2009 4:59:35 AM(UTC)
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I am in the same boat as Shaman.
I have MUX/Buffalo24/IVY setup with TP power supplies trying to decide on a direction. I am also more interested in sound quality than experimenting.
Now that the counterpoint is available, I thought the Placid power supply board was designed for the counterpoint. When will that be available?
Since I am SE I am curious when the balance to SE boards be available. To avoid the turn on turnoff problems cant one just leave the counterpoint on all the time?
wobbly  
#5 Posted : Friday, March 27, 2009 6:03:22 PM(UTC)
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Same here, I have CD PRO2 - I2S into Metronome into Buffalo 24 into IVY, and run OTLs in ballanced with the SE driving the sub plate amps ( Bastanis).
I now wonder about the sonic difference between "upgrading" to Counterpoint with Ballsie to drive the subs - or to go Buffalo 32 with Ballsie
ie is the Buffalo sonically better in combination with its on board IVY2, or is the Counterpoint "way better" and would outshine any small change from the simple 32 bit upgrade.
Russ White  
#6 Posted : Friday, March 27, 2009 6:06:29 PM(UTC)
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There is no BAL/SE converter required for Buffalo32S. You can use it balanced, SE or both at the same time.

Counterpoint does not require a special power supply. Its constant current design makes it very flexible PS wise.

Cheers!
Russ
Shaman  
#7 Posted : Thursday, April 2, 2009 8:03:07 AM(UTC)
Shaman

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Glad to see you are already testing Buffalo32S! When you are done with the fine-tuning of the new board, please don't forget to try it in a good ol' deathmatch against an "old" Bufallo+Counterpoint combo... :D
Shaman  
#8 Posted : Saturday, April 4, 2009 12:06:19 PM(UTC)
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Ehm, I know I was bold enough to say "money is not an issue" but seeing the 32S prices just published I think I'll buy that pair of Counterpoints after all. Anxious
pelliott123  
#9 Posted : Sunday, April 5, 2009 12:41:00 PM(UTC)
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Shaman I agree with you. With the high price of the "32" I will also stick with my "24" for a while. With all the excitement with the "32" I just hope the boys do not leave us behind in the dust, like the promised fix for the turn on/off problems with the Counterpoint using SE
Russ White  
#10 Posted : Sunday, April 5, 2009 8:19:09 PM(UTC)
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pelliott123 wrote:
Shaman I agree with you. With the high price of the "32" I will also stick with my "24" for a while. With all the excitement with the "32" I just hope the boys do not leave us behind in the dust, like the promised fix for the turn on/off problems with the Counterpoint using SE


Um, that's the reason counterpoint is beta. :) What promise are you referring to? People begged me to make the counterpoint available. I did. What more can you ask? I have made no further promises other than that. If I can figure out a good solution for the SE thump, or if any of you have any ideas that prove to work, I would be glad to move beyond beta. :)

I have no intention of leaving anyone behind. Really, you should know better.

Counterpoint is a really cool experiment which worked really well, but its not perfect. I am still not sure how to get through some of the rough edges. This is just proof I am still learning. :)

I understand the sticker shock for Buffalo32S for some folks. Unfortunately it is what it is. Costs are costs. Brian and I are being as reasonable as we can.

Cheers!
Russ

Edited by user Sunday, April 5, 2009 8:20:21 PM(UTC)  | Reason: Not specified

acko  
#11 Posted : Sunday, April 5, 2009 9:16:03 PM(UTC)
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Hi Guys,

My support is with Russ and Brian for the great work they are putting together for DIYers. Prices for new Buffalo32S appear steep and I did get a shock myself but understandably the main parts (ess9018, osc, boards) are as such. Hopefully TP will make available more information on ess9018, etc for those who purchase Buffalo32S to enable them to tweak them to get the best out of them.
pelliott123  
#12 Posted : Monday, April 6, 2009 10:12:25 AM(UTC)
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Did not mean to be upsetting, I love my Buffalo/IVY solution and it beats anything I have compared it to and all that I have learned about digital during this process. I just got excited about the improvements talked about the counterpoint, then discouraged over the turn on/off problems. I just remember a discussion about additional pcb that was coming to solve the problem. I apologize if I misremembered.
Russ White  
#13 Posted : Monday, April 6, 2009 11:46:35 AM(UTC)
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Hi, Actually there is no turn-on issue with counterpoint. :) There is not even a turn-off issue except if you use it single ended. :) And some peope have not even reported seeing the turn off transient I have seen.

One solution could be as simple as using a very fast acting relay, such as a AC powered relay and tie it directy to the mains switch. This way if you use SE output the output could be shunted to GND immediately on power down. I have not tried this myself yet, but I am pretty sure it would work.

Cheers!
Russ
Shaman  
#14 Posted : Monday, April 6, 2009 11:56:06 AM(UTC)
Shaman

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Russ White wrote:
I understand the sticker shock for Buffalo32S for some folks. Unfortunately it is what it is. Costs are costs. Brian and I are being as reasonable as we can.


Noone said (or thought) anything different, Russ.
Costs are costs, you and Brian are obviously not trying to get rich out of TP and, believe me, I have been "advertising" your work in every single forum I participate in - not because I have shares in TP but because I don't like people seeing people pay 10x times as much for 1/10th of the sound quality of Buffalo.

What I'm merely trying to say is that with the current prices previous owners will have a hard time deciding to upgrade. For new customers perhaps this is not an issue - but they don't have an option to buy the previous board anyway.
Being a previous customer of yours, I find it unreasonable to sell my Buffalo + Counterpoints and shell out some serious cash as far as DIY projects go ($200+ extra from what I might get if I sell the previous DAC) to upgrade to Sabre32S when, at the moment, noone is in a position to confirm it will be an actual upgrade sound quality-wise. Perhaps previous Buffalo owners are not your primary target group for Buffalo32, but I sure ain't the only one who was hoping to upgrade (as hard as it might be to believe there can be an upgrade!).

In other words, the value-for-money factor seems lower than that of your previous Sabre DAC offerings.
I'm hoping it's due to diminishing returns kicking in (= having to spend a lot to improve an already great product).

Perhaps it's just me that I see it this way, perhaps not.

I have already made some suggestions in the Diyaudio forum, but I'll post them here as well:
- There could be a Buffalo32S kit with the board semi-populated (for example you could leave most IVY II parts for the customer to solder), which, I suppose, would give you some price reduction margin.
- For previous customers (early adopters and people who helped spread the Buffalo name) there could be an option to buy a Sabre32 chip from the Parts Bin and upgrade their Buffalos - at their own risk ofc!

Just my 2 cents.

Keep up the good work! Angel


P.S. I'm beginning to think the whole Counterpoint "thump issue" was mostly due to Russ being a perfectionist. Even if you have such an issue, there are more than enough ways to counter it!

Edited by user Monday, April 6, 2009 12:07:55 PM(UTC)  | Reason: Not specified

Russ White  
#15 Posted : Monday, April 6, 2009 5:44:42 PM(UTC)
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Shaman,

I appreciate your thoughtful reply.

I know that beyond Brian and I nobody else has Heard Buffalo32S yet. But what I can tell you is that, at least to me, it is truly worth the cost difference. :) I don't say this lightly. There is so much more to the new design than a better clock. :) More than I am actually willing to share quite yet.

In any case I understand this DAC will be more than some will be willing to pay. That just can't be helped.

Now to give you an idea the faith I have in the design I have already invested hundreds of hours and thousands of dollars in its development, and likewise has Brian. Even if I did not sell a single module it would be worth it to me just to be listening to what I am at this moment.

I appreciate your comments about Counterpoint. I have poured a lot of time and money into that circuit too. :) Someday I will get it working exactly like I want. :)

Cheers!
Russ
pelliott123  
#16 Posted : Tuesday, April 7, 2009 5:05:24 AM(UTC)
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I now have the Buffalo24/IVY and was going to go with the Counterpoint I/V upgrade when it settles out but that looks like it will be awhile. So I have decided to dump that whole project and go with the Buffalo 32 when its available.
NicMac  
#17 Posted : Tuesday, April 7, 2009 7:23:43 AM(UTC)
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I'm the happy owner of one of the last Buffalo/IVY combos that I'm now trying to get to work with the counterpoint which is sold at a genuine bargain price! Although I can afford the Buffalo32S I have decide not to get it in this round as I think I have still not got the best out of the previous version.
I hope for Russ and Brian to sell a great deal of Buffalo32S so that its qualities can be tested, reviewed and possibly improved by the DIY audio community. I will go for Buffalo32S V2, hoping that Sabre does not come out with a new 64-bit chip requiring a complete redesign....
Happy building guys,
Nic
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