[Fullvolume]

I'm looking to purchase a Torus (BIT) in the near future after I complete my music room. I have the opportunity to add dedicated circuits so I guess my options are wide open.
I will have 2 systems, a 2ch and a HT. I'm more concerned about the 2ch. This is what I have: 2 x 7BSST2, Bp26/MPS2, Clearaudio Concept TT, Clearaudio Balance Phono preamplifier, Dynaudio Focus 360’s (4ohm) and possibly a BDA-1and BDP-1 in the future.
What would be my ideal Torus?

[werd]

Hi FV

Do you have your 7B's stacked on the same rack or outside and situated beside each speaker? If they are on the same rack they are easier to power with a torus. If you have them behind each speaker you may need really long power cords to reach the torus providing both amps. How you do this will determine what Torus you get imo.
Thats why i asked.

[Fullvolume]

They will be beside the speakers....the room is 14' wide.

[werd]

They will be beside the speakers....the room is 14' wide.

Ok now you have to decide if you want to power each 7b with a single torus or run really long power cords and power the whole thing with one big Torus. You need to decide now while things are still in it's infancy with your room. It will make a big difference. This is reason why i bought a 14b because they are way easier to power imo and take less Torus fiddling with.

[alexone]

Werd,

i think that Fullvolume is asking what type of BIT he has to choose regarding his specific setup.
maybe James should make it a sticky topic as the search for the right BIT (Torus) still seems to confuse a customer?!

al.

[JBLMVBC]

When I invested in Torus units, James kindly helped recommending the configuration for my system needs: as a result I acquired two RM 15 units to accommodate my two 7B SST per channel and distributed the remainings two 2B SST, preamps and sources equally. Never had any problem!

Werd,

i think that Fullvolume is asking what type of BIT he has to choose regarding his specific setup.
maybe James should make it a sticky topic as the search for the right BIT (Torus) still seems to confuse a customer?!

al.

[Fullvolume]

Yes I was inquiring about what model to purchase.

[95Dyna]

Hi fullvolume,

I analyzed this extensively a year ago and bought the CS15 into which I have plugged my 7B SST2's, MPS2/BP26/, VPI Classic, Esoteric X-05 and am completely pleased with the difference it has made.

Bill

[werd]

Yes I was inquiring about what model to purchase.

Hi

You have to decide how you will be powering it first before you make a decision on the model. Are you going to run longer power cables or are you going to put a Torus on each speaker 7B.? A single rm20 will work for everything and try and make it 240 volt if you can.

How new are your 7B's, do they have the new transformers in them?

[Fullvolume]

My 7B's do not have the new transformers. So a single amp output @ 900W @ 4 ohms = 1980 Watts or 16.5 amps. So two amps at max would be 33 amps. I read on the forum that taking the total amperage the amp can draw and getting a Torus that is rated at about 2/3 thirds of that total requirement. So for 2 7B's that would be 22 amps. Is the 22 amps considered nominal ?? So technically the Torus CS 20 is not big enough to feed the 7B's ?

[werd]

My 7B's do not have the new transformers. So a single amp output @ 900W @ 4 ohms = 1980 Watts or 16.5 amps. So two amps at max would be 33 amps. I read on the forum that taking the total amperage the amp can draw and getting a Torus that is rated at about 2/3 thirds of that total requirement. So for 2 7B's that would be 22 amps. Is the 22 amps considered nominal ?? So technically the Torus CS 20 is not big enough to feed the 7B's ?

Hi

If you plan on really driving your amps hard like that i would consider doing a rm15 on each amp or a rm30 in 240 volt. The big advantage of the Torus comes from the instantaneous power draw from the circuits that can deliver the 50 or 60 instantaneous amp draw for a 7b (could be more to). The house outlets just can't keep up to the power draw. I don't ramp my 14B in rms like that so a rm20 is more than enough for me.

[95Dyna]

My 7B's do not have the new transformers. So a single amp output @ 900W @ 4 ohms = 1980 Watts or 16.5 amps. So two amps at max would be 33 amps. I read on the forum that taking the total amperage the amp can draw and getting a Torus that is rated at about 2/3 thirds of that total requirement. So for 2 7B's that would be 22 amps. Is the 22 amps considered nominal ?? So technically the Torus CS 20 is not big enough to feed the 7B's ?

I drove myself nuts with the very same line of thought only to come to the conclusion I would have to be using the 7B's at levels that would blow the windows out of the house to use anywhere close to the capacity of the CS15.  As werd has said his RM20 is "more than enough".  BTW, my 7's do have the new transformers and I still prefer them plugged into the Torus in this configuration.  I'd go for the CS15 and spend the $1K savings on some new software.

[drummermitchell]

Blow the windows out of the house,nice one  .fast way to do window renovations.
I went extreme so I could sleep easy.

[Deftone]

Read this topic with interest.I run a 20amp circuit with 6 outlets just for hifi need.My question will be do I really need to have the Torus/Bit for my system which consist of 4b2,BP-26/Mps2 and thee bcd-1.
If I do will the 16a be more then sufficient?

[drummermitchell]

All I can say for me as I had dedicated lines when I used Shunyatas with my 5 amps,
then was introduced to the Torus(s)and it was SHOWTIME,a huge,huge difference.
People should at least do a home audition,which is free.
There have only been 6 Torus(s) come up for sale in the last at least three years.
I had bought one 20a+10a,a friend bought two-20a,and one 60a just sold on audiogon and there is a
15a 120v for sale on cam.
You see tons of well known conditioners on both sites,yet the Torus is almost non existant(for sale that is).I do know for three of these the sellers went to a bigger Torus as they needed more reserve power as they had went to biggeramps:4's to 7's to 28's.
I'd better git to work .

[xsparky]

Hi there;

   I am a very happy new owner of a Torus CS20. I when with the CS20 on the recommendation of my Dealer who said he did extensive listening tests between the CS15 and the CS20. He found that the CS20 just seem to give a moderate system that "ease" where the music just flowed effortlessly compared to the CS15. I took his word.
   My system consists of a Linn Klimax DS digital stream player, a McIntosh C500t tube preamp, two McIntosh MC501 mono blocks. This feeds my PMC IB2i's. I also have an Anthem D2v as the processor, plus a few other amps and things plugged into the Torus for surround sound.
   As far as what the Torus CS20 did to my 2 channel  system is phenomenal!! I thought it sounded great before (Had a Monster 5100 conditioner) but now everything just flows. Very deep sound stage, Instruments and voices are just so real. Bass is tight with more punch, mid-range is smooth, and the top end sparkles. The PMC IB2i's are non existent!
   Overall well worth the money. I love it!

[PRELUDE]

Hi folks,
In my owner's manual both 7B SST and 4B SST under general information goes like this.
POWER LINE CONDITIONERS will not improve the SST amplifier performance, in fact most of the time they restrict the flow of current to the amplifier reducing performance at higher output levels.
Can please some one explain this for me that we still use conditioner with this unit or no.
Thanks,

[drummermitchell]

If I remember right, before the Torus came out,alot of conditioners did restrict the amps.
I'm sure James will know.I did read it on here quite a ways back.
I forget which thread on here,but I'm sure it's one of the Torus threads.

[BrysTony]

Hi folks,
In my owner's manual both 7B SST and 4B SST under general information goes like this.
POWER LINE CONDITIONERS will not improve the SST amplifier performance, in fact most of the time they restrict the flow of current to the amplifier reducing performance at higher output levels.
Can please some one explain this for me that we still use conditioner with this unit or no.
Thanks,

I can't answer your question but I can tell you that I have a 7BSST manual that was updated 7/31/2007 and the only difference in it and the earlier edition that I have noticed is that the statement that you quote has been deleted.  The Bryston website should have been updated but it was not so that question persists.  Obviously, when Bryston was marketing Torus it was not a good thing to say that power conditioning was negative so it has been changed.  My take on the whole thing is that they were wrong -- all the Torus reviews have been very positive and Torus owners are all enthusiastic in their praise for Torus.  All say it greatly improves the sound. 

Tony

[James Tanner]

The concern Bryston had with a lot of power line conditioners available in the market was that many of them could restrict the current available to the amplifier. An amplifier can draw very high peak current, and wants to 'see' a very low impedance high current source from the power line. In fact, we even stated in our owners manuals not to plug our amplifiers into power conditioners. The Transformer based line conditioners we tested were too small to supply the peak current required and many of them were just Filters and did not provide Isolation -(Isolation means there is no mechanical connection between the outside power grid and your inside system power supply).

Also most of the surge protection was done using MOV’s, which are sacrificial and eventually will be destroyed with repeated spikes. Other issues with these MOVs is that they allow much more voltage through before they reacted (typically 300 volts and higher) and they shunt the voltage spikes to ground.

So we decided to try and develop a powerline Conditioner, Isolation and Protection unit that would not have the restrictions of the many units currently on the market from an amplifier performance perspective.


james