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SPL Phonitor Roll Call & Appreciation Thread - Page 38

post #556 of 678

Yo,

 

Nice to see someone with a Auditor/ROC combo. Same here. I used the ROC to boost the signal from my DAC with it's pre-amp function. I then feed it tot he Auditor and sue the Auditor XLR outs to my V200.

post #557 of 678

Z_X, they are both great amps and I enjoy them equally.

 

Do you notice that when you go balanced from the Auditor to the V200, the Auditor tends to play at a quieter level when the V200 is not powered up.  Once the V200 is powered up, the Auditor returns to its "normal" volume level?

 

I notice this with my Auditor feeding my ROC SA via balanced.  For this reason, I leave the ROC SA XLR's unplugged from the Auditor until I'm ready to use the ROC SA.  This behavior was not present while feeding monitors via XLR through the Auditor. Strange.

post #558 of 678

Phonitor and NAD m51 to my HD800 are the closest thing to SR-009 I have ever heard. I have lately been listening to my HE-6 off First Watt F3, which I do love, but a good phonitor set up is tough to beat. And BTW, I am using Flavor 4 as my power cord and King Cobra XLR from audioquest between my DAC and the Amp. HD 800 is cabled with ALO salty pepper (6 ft) and Moon audio black dragon (10 ft), depending on length I need. Anyway, I am surprised that that it is not getting more love out there. 

post #559 of 678

Question:

 

Earlier in this thread some of you have mentioned modding your Phonitor. I saw the opamps discussion and how eventually consensus was that the mod did nothing for the amp.

 

I am curious whether anyone of you has had any other mods installed and what they are.

 

Also, Stefan Audio Art offers a mod package (that actually includes opamp replacement). Could anyone comment on that package? Are they selling DC offset opamp replacement, or are they actually changing opamps in the sound signal path? Also, what do you all think about the other mods? Here is the link http://stefanaudioart.com/Phonitor%20mod%20pac. Is it worth the nearly $1000? Would it surpass the performance of something like the GS-X or high end RSA SS amps with those mods?

 

I would really appreciate the input. Thanks!

post #560 of 678

Hi,

 

I have not experienced this at all.. It always plays at the same volume no matter if the gear is on or off.

 

Quote:
Originally Posted by rezolver View Post

Z_X, they are both great amps and I enjoy them equally.

 

Do you notice that when you go balanced from the Auditor to the V200, the Auditor tends to play at a quieter level when the V200 is not powered up.  Once the V200 is powered up, the Auditor returns to its "normal" volume level?

 

I notice this with my Auditor feeding my ROC SA via balanced.  For this reason, I leave the ROC SA XLR's unplugged from the Auditor until I'm ready to use the ROC SA.  This behavior was not present while feeding monitors via XLR through the Auditor. Strange.

post #561 of 678
Quote:
Originally Posted by Cante Ista View Post

Question:

 

Earlier in this thread some of you have mentioned modding your Phonitor. I saw the opamps discussion and how eventually consensus was that the mod did nothing for the amp.

 

I am curious whether anyone of you has had any other mods installed and what they are.

 

Also, Stefan Audio Art offers a mod package (that actually includes opamp replacement). Could anyone comment on that package? Are they selling DC offset opamp replacement, or are they actually changing opamps in the sound signal path? Also, what do you all think about the other mods? Here is the link http://stefanaudioart.com/Phonitor%20mod%20pac. Is it worth the nearly $1000? Would it surpass the performance of something like the GS-X or high end RSA SS amps with those mods?

 

I would really appreciate the input. Thanks!

 

I'm as well curious about stefan mod, I mean how much better can it get...on the other hand, a member here said that he didn't find any sound differences with the Burson Audio HD Opamps. Maybe we can ask Burson Audio if they're interested to run a HD Opamps loan program for the SPL amps.

post #562 of 678

Z__X, that has me curious.  Ended up purchasing a pair of Neutrik Balanced to female RCA adapters.  With those plugged into the XLR output jacks and not connected to anything on the RCA end, my amp will play at a lower volume.  When the right side adapter is removed, the right side will play louder.  Same goes for the left side.

 

I am confused more than anything.

 

The Stefan POT mod would be one I'd bite on for greater smoothness and tactile feel with the possible benefit of better tracking (stock is already good).  The rest of the mods seem frivolous to me.  Always interested in impressions though.

post #563 of 678

So, no one of the SPL owner's interested to participate in HD Opamps loan program? blink.gif

post #564 of 678

I would but i know nothing about electronics and would be afraid to dig under the hood of electronics. But would love to hear impressions or get together with someone more competent, play around and compare impressions. 

post #565 of 678

Anyone compared SPL amps to new Senn HDVA amps? I hope at the london headfi meet, but im suspecting the HDVA will win out as I remember 

doing reference comparisons last weekend with hd650 and hd800 on the HDVA and was astounded at how close the 650 became to the 800. makes me think about

not getting an hd800 even,,,but the amp and balanced cable for 650s


Edited by daniel_hokkaido - 2/26/13 at 5:44am
post #566 of 678
Quote:
Originally Posted by Cante Ista View Post

I would but i know nothing about electronics and would be afraid to dig under the hood of electronics. But would love to hear impressions or get together with someone more competent, play around and compare impressions. 

 

A bit like a Lego, you'll need to be gentle not to break the host. I've found two clips that shows how...

 

 

post #567 of 678

With the Phonitor looks like the Burson Audio HD Op Amps will need the 8 pin dip socket extension, as shows in the photos.

 

 

 

post #568 of 678
Quote:
Originally Posted by Acix View Post

With the Phonitor looks like the Burson Audio HD Op Amps will need the 8 pin dip socket extension, as shows in the photos.

 

 

 

Thanks man! I am still afraid I would touch something that hold charge (even after unplogging) and send myself to the hospital or the other side! basshead.gif Anyway, this is helpful nonetheless.

Also, I heard from SPL and was told the majorly of the SSA mod package is not a good idea. I have also reached out to a member, who seem to know what he is talking about when he talks about things I am familiar with (good and honest guy) and he swears by the mods. Go fig.

post #569 of 678
Quote:
Originally Posted by Acix View Post

This is SPL replay to my question, what op amp there is inside the Phonitor/Auditor.

 

Our op-amps are the core elements of the 120V technology ... these are hand-made components which would never fit into any other unit :)
And these are no ICs - as single components they look like this :
 
120v_opamp350.jpg
 
 
In the Auditor, they are fixed on the PCB - you cannot exchange them. 
This is how the Auditor looks like internally (pic shows the first two of four opamps ... this also explains the housings's depth, as we simply need space for this stuff :)
 
AUDITOR_PCB_opamps_mark.jpg
 
 
The area marked red: that is an op-amp. It is a discrete design, no chip/IC component. Nothing can be changed within this circuit.
the area marked yellow: this component (LF 411) is used in a circuit to cancel DC offsets. It does not work with audio signals directly, therefore no influence on sound. Do not (!) change it to ensure proper function.
 
We do not see a chance to "tune" Auditor or Phonitor simply by component exchange -- we already did so :)
 
Thanks to Paul from the SPL support team.
 
 

 

 

 

This is what the SPL support team have to say about replacing the op-amps, they simply claim this will not effect the sound!  The Stefan AudioArt mod (http://stefanaudioart.com/Phonitor%20mod%20pac) said the Burson Audio HD Opamps is a replacement for Phonitors LT071 op-amps...for me this is a very odd case! Maybe during the production time at SPL they change the LT071 to the LF 411? Maybe someone with a electronic background can shed more light over this topic?

 

Now, I became curious to see what op-amp I have under the hood...and yes, is the LF411. Maybe they put the LT071 in the first Phonitor models (I even not sure if the LF411 can be a replacement for the LT071).

 


Edited by Acix - 2/27/13 at 1:42am
post #570 of 678
Quote:
Originally Posted by Acix View Post

 

 

This is what the SPL support team have to say about replacing the op-amps, they simply claim this will not effect the sound!  The Stefan AudioArt mod (http://stefanaudioart.com/Phonitor%20mod%20pac) said the Burson Audio HD Opamps is a replacement for Phonitors LT071 op-amps...for me this is a very odd case! Maybe during the production time at SPL they change the LT071 to the LF 411? Maybe someone with a electronic background can shed more light over this topic?

 

Now, I became curious to see what op-amp I have under the hood...and yes, is the LF411. Maybe they put the LT071 in the first Phonitor models (I even not sure if the LF411 can be a replacement for the LT071).

 

Wait?! What? I am almost sure this is a stupid question, but are some those in the signal path, while the others aren't ? confused_face_2.gif Could it be that SPL changed opamps in signal path, and when SAA talks about changing them, they are actually talking about ones in the signal path? It's just that those were changed and we are now miscommunicating

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