[TJHUB]

Cool, have they reached the 100+ hours?

I'd say they have at least 100 hours by now.  They seem to have stopped changing, so my guess is that they've settled in now.  I'll have to do some swapping to compare the sound characteristics.  I can say that for the most part, I think the Burson's are perfect for my setup.  All I can say for certain is that I don't find myself thinking about the sound, I'm just listening to the music.  Hopefully that means things are sounding right.

[Noseyears]

All I can say for certain is that I don't find myself thinking about the sound, I'm just listening to the music.  Hopefully that means things are sounding right.

If they bring you closer to the music, just enjoy. 

[setamp]

Does anyone know if the OPA637 will work in the output stage?  The OPA627 works well but lacks the HF extension of the 637.

[David C]

I know this is an old thread but I wanted to post and say that I just had the Dexa op amps installed in my original mini max DAC (not the + model) and the improvement in sound is not slight. Much improved base and much better mids and highs. Thanks Bill at Morningstar for a quick turnaround. If you have this DAC it is very well worth the upgrade cost

David

[Jon L]

I know this is an old thread but I wanted to post and say that I just had the Dexa op amps installed in my original mini max DAC (not the + model) and the improvement in sound is not slight. Much improved base and much better mids and highs. Thanks Bill at Morningstar for a quick turnaround. If you have this DAC it is very well worth the upgrade cost

David

Dexa's have been sitting in my Minimax Plus for some time now.  Good stuff. 
Also, Minimax Plus owners should experiment with the phase switch because my output was actually in correct phase when the switch was engaged to out-of-phase (red light). The sonic change should be pretty obvious.

Lastly, Triode Wire Labs Plus cords go very well with this DAC.

[Levi]

I still have my Original Eastern Electric DAc. Looks like most of you liked the dexa. I may have to try that one day. That is for the tube output I assume.

[David C]

Levi
I have yet to try the tube output with the new Dexa discrete op amps but will do so. I replaced the single and the dual, so both SS and tube

David

[TJHUB]

Levi
I have yet to try the tube output with the new Dexa discrete op amps but will do so. I replaced the single and the dual, so both SS and tube

David

For whatever reason, pulling the tube out increases clarity.  The bad thing about leaving the tube installed is that it's burning whether you are using the tube or SS output.

I've had Burson opamps in all 4 positions since early on in my plus version.

[Bill O'Connell]

I also am now using Dexa's throughout for about a year now, but since I had mine fitted with with Vcaps  on the output stage and also the power supply , thanks to Bill Baker over at Response Audio,
only the tube stage is used otherwise it would bypass the fantastic Vcaps. Had to raise the top cover about an inch to fit in the caps though. Bill did a great job on it though. Currently using a pinch waist D getter version E80CC tube.
Dynamics out the ying yang.

[TJHUB]

I also am now using Dexa's throughout for about a year now, but since I had mine fitted with with Vcaps  on the output stage and also the power supply , thanks to Bill Baker over at Response Audio,
only the tube stage is used otherwise it would bypass the fantastic Vcaps. Had to raise the top cover about an inch to fit in the caps though. Bill did a great job on it though. Currently using a pinch waist D getter version E80CC tube.
Dynamics out the ying yang.

You should share some pics. 

[rpf]

I had VH Audio OIMP caps installed in the output coupling position of my DAC Plus (with Dexas). Being smaller than the V-Cap Teflons, they do not require the top to be raised. Added resolution, three dimensionality, dynamics and sweetness to the sound. A nice improvement.

Also had the voltage selector block removed. There are a few different cheap metals in that block and eliminating it removed some grain.

I use a 1965 Radiotechnique for the tube output.

[Levi]

Hey Rob,

How is the Dac plus compared to your modified original Dac? 

[rpf]

Hey Levi,

Hard to tell as I didn't have them at the same time and several other things changed when the DAC did (caps in amp, and room, primarily). From memory, I would say that the DAC Plus with the VH Audio OIMP output caps is more organic, coherent, and laid back. It has excellent resolution but not on the level that the original (heavily modded with constant current source, Jupiter HT output caps, voltage regulator block removed and volume control disabled - for those who don't know) did. The original also probably separated individual lines more but my Plus definitely has a sweeter top end.

[Rocket]

Hi,

I just bought the Eastern Electric Dac Plus a few weeks ago which replaced my aging Perpetual Technologies P3a (modwright level 2).  Right of the bat the sound was very good in my system but I wanted better so I ordered OPA 2604's and 979B's installed in brown dog up adapters.  Quite impressed by the sound and I then read how good the DEXA discrete opamps were and so I've ordered them to try.

They should arrive in the next week or two and I can't wait to hear the improvement.

Cheers Rod

ps. why is there so little press on this great little dac?  Seems like it was really popular a year or so ago.

[Big Red Machine]

ps. why is there so little press on this great little dac?  Seems like it was really popular a year or so ago.

I enjoyed the EE dac very much when I had it and like the Dexa's best.  With the huge influx of DSD-capable dacs the EE just can't stand up to the competition.  In a different league for sure, but my Lampizator can run circles around the "lowly" EE.  And when you throw in dacs like the BMC and others at or around $1600 why wouldn't you stretch for that next step up in performance?  I liked the tube and chip rolling accommodation of the EE but in the end it seemed to be ahead of its time but then behind as others were planning their releases.

[Rocket]

Hi BRM,

Thanks for the information I don't really have any knowledge about DSD and I just use cd's that I have purchased.  I also don't have a computer setup at the moment because it just seems too complicated for me. The got the EE dac plus for $995 (australian dollar) from the aussie dealer which equates to about $900US (or thereabouts) and it was a good price for me.

Generally consumers pay about 20% more for our gear and the EE dac was a good pickup for me.  I presume that Eastern Electric will upgrade this dac to be competitive with the competition.  The DEXA's will be a good upgrade for me.

Cheers Rod

[Big Red Machine]

Yes, the DEXA's, to me, were head and shoulds above the Bursons.  The Bursons were very mellow and DEXAs seemed to match the Salk speaker's capabilities well.

[jonbee]

Yes, the DEXA's, to me, were head and shoulds above the Bursons.

I'm very happy with my Plus, w/ dexas and no tube. The dexas have the additional benefit of fitting inside the EE without adapters, etc., while the Bursons don't.
After nearly 2 years with mine, I don't even think about DACs anymore. I'm sure there are better for more $, but the EE sounds "right" to me.

[Rocket]

Hi Guys,

The Dexa's arrived today and I've installed them in the Eastern Electric Dac Plus and I have to say 'does it get any better than this'?  It must be the combined synergy of my system because cd's are now sound  quite analogue to me.  Do the Dexa's take long to burn in?  I did hear an immediate improvement in sound quality.

Anyway very happy with these opamps.  I have the AD2604's and 797B's with brown dog adapters as my backup just in case I decide to sell the dac in the future. Btw these opamps did sound very good and I would have been happy with them if I didn't upgrade to the Dexa's.

Cheers Rod

[Big Red Machine]

I noticed no real burn in time on these chipsets.  Enjoy!