Head-Fi.org › Forums › Summit-Fi (High-End Audio) › High-end Audio Forum › Anyone have any experience with the B.P.T. 3.5 Signature plus?
New Posts  All Forums:Forum Nav:

Anyone have any experience with the B.P.T. 3.5 Signature plus?

post #1 of 7
Thread Starter 
Living in a building in NY has its share of disadvantages, one of which is the constantly fluctuating electricity. In the evening the voltage can drop as low as 114 or can climb to as high as 126. Up to this point I've been using a Monster HTS5000, a reference from yesteryear, before Monster sold out to rap stars and before, according to some, they gave up on quality. I've enjoyed this unit, but the promise of cleaner power with all its alleged benefits kept gnawing on my contentment. So I purchased the no longer offered BPT 3.5 Signature Plus. Can anyone share their experiences with this unit? Perhaps a comparison with something like a Shunyata V Ray II (which I'm considering demoing or a product that similarly incorporates "balanced power solutions or "high isolation type transformers"?
post #2 of 7

I had a BPT Junior and some later one. They didn't do much and one hummed. I have the Shun Vray  for one system and I like it better, 

giving more ease of listening and leaving resolution and bass alone.

post #3 of 7
I have a BPT 1 and I think it is ok to clean up the power a bit (good for tube stuff that does not like filtering conditioners) but I do not think that it will deal with your issue of fluctuating voltage. You might want to look at furman or exactpower voltage regulators. There are other brands as well.
post #4 of 7
Thread Starter 
I tried a BPT Junior a while back, in a different place, and it did very little for me also. Yesterday I fired up the 3.5 and I'm utterly at a loss to describe the level of improvement. I have had my share of tweaks and in some cases noted increments of improvement and in others less than that, but this is really quite different and far beyond what I was expecting. Perhaps there are electric issues with my domicile, or perhaps this item really is as good as people say (which it would have to be to justify the near 4k price tag). I need more time and have invited a fellow headfier for an analysis, one who notedly does not believe in power conditioners from his past experiences. The differences in grain (black as the night now), clarity, depth and spatial specificity are really so stark that I wonder what I've been listening to heretofore. I'm not prone to fanboyish histeria and really have not had it since I went from an SR80 to an HD650 > Zana Deux a long time ago. I need more time to understand this change.
post #5 of 7

Wow, now you've got me curious about the BP 3.5. (I'm a big believer in power conditioning. I guess it's a religious faith here...)

post #6 of 7

Interesting. From the following review (http://www.6moons.com/audioreviews/bpt2/flagship.html) it seems the BPT 3.5 uses a Plitron transformer. I use a Bryston BIT-15 which also has a Plitron transformer to isolate the equipment from the mains. You can read more about Plitron's technology here:

 

http://www.toruspower.com/technology/

 

Bryston also sells power conditioners with automatic voltage regulation (AVR) although they note that the optimal voltage range is 115 - 125V, so you may not need it.

 

With the BIT-15 feeding power to my system, I noticed that sibilants and transients sounded much cleaner vs. plugging my integrated amp directly into the wall. I suppose this must be the 'narrow bandwidth technology' at work here. In any case, it was a noticeable improvement without any loss in dynamics.


Edited by yage - 6/28/13 at 6:20pm
post #7 of 7
Thread Starter 
Quote:
Originally Posted by yage View Post

Interesting. From the following review (http://www.6moons.com/audioreviews/bpt2/flagship.html) it seems the BPT 3.5 uses a Plitron transformer. I use a Bryston BIT-15 which also has a Plitron transformer to isolate the equipment from the mains. You can read more about Plitron's technology here:

 

http://www.toruspower.com/technology/

 

Bryston also sells power conditioners with automatic voltage regulation (AVR) although they note that the optimal voltage range is 115 - 125V, so you may not need it.

 

With the BIT-15 feeding power to my system, I noticed that sibilants and transients sounded much cleaner vs. plugging my integrated amp directly into the wall. I suppose this mhttp://www.head-fi.org/t/669756/anyone-have-any-experience-with-the-b-p-t-3-5-signature-plus#post_9569962ust be the 'narrow bandwidth technology' at work here. In any case, it was a noticeable improvement without any loss in dynamics.


That's precisely it, sonic cleanliness and clarity. Third day now with the unit (it had been broken in already) and my early impressions have stayed the same. Generally disliking the use of cliches, I cannot help but rely on one for an explanation. I feel as though the window, formerly a bit sullied and foggy, has been removed altogether and I sit in front of a vast, clear soundscape. Also the noise, or grain in this case, has been lowered so that sounds are appearing as if from a silent night. High frequencies are not as full of splash, but tighter, more precise and commanded by the transducer. The stage has deepened and within that space I can  differentiate instrument placement with less strain and can hear more of their tone and texture (something I attribute to the absence of grain, which can obfuscate tone). There is an overall sensation that the sound has become tight and the rhythm is controlled and deliberate, where previously a complex or busy passage was sometimes tangled and admixed in the soundstage, like different paints oozing into one another on a palette.

 

These past three days I've done my listening through a W4S Dac 2 + Audiophilleo > Dynahi (using Beyer T1's). I believe the Dynahi really benefits from the cleaner power offered by the B.P.T. Remember that this amp was never commercially offered and while this build seems good enough, I highly doubt that a great deal of thought was given to the power supply. I know that my Zana Deux, which has its own external LC power supply did not respond to power cord changes like some of my other amps. I even demoed a Shunyata Cobra Ztron and was less than impressed when it was the Zana's turn on the queue. This weekend I'll reconfigure my rack and integrate the B.P.T. with the Perfectwave and all my other gear. If the benefits attained are even 1/3 of those recently experienced I would be immeasurably satisfied. Not needing to steal an hour or two of listening at 5:30 am is a welcome relief and in hindsight something I found myself doing a great deal lately.

 

*RGS9200M - I'm certain you can guess that I have no reservations about recommending you give this product a listen. I cannot begin to guess what kind of impact it would have on your system, nor am I certain as to the reasons for why it has impacted mine so much. But it has from these early observations and I have become downright giddy as a result, something I thought was no longer possible for me in the headphone realm. I don't see it come up very often on the used market, but I'm sure they have a return policy. It's more than worth an audition, though admittedly the V-Ray has garnered some fantastic reviews in its own right.

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: High-end Audio Forum
Head-Fi.org › Forums › Summit-Fi (High-End Audio) › High-end Audio Forum › Anyone have any experience with the B.P.T. 3.5 Signature plus?