[amdan]

Does the 14B ST have to be run off a 20A circuit?  I think (not sure) I am running mine on a 10A circuit. Will changing to a 20A circuit make much of a difference?

[James Tanner]

Does the 14B ST have to be run off a 20A circuit?  I think (not sure) I am running mine on a 10A circuit. Will changing to a 20A circuit make much of a difference?

In the USA and Canada (120 volt/60Hz) the 14B can be purchased in a 15 or 20 amp version.
Overseas the (220-240/50-Hz) VERSIONS ONLY COME IN A 10 AMP. When you double the Voltage (120 to 220) the Amperage requirement is cut in half.

james

[amdan]

Hi James,

Thanks very much for the response. I have the 240V version. I take it then that a 10A circuit is fine if the Bryston is the only piece of equipment on it but that I should change to a higher current circuit if I have other equipment on the same circuit?

Could you also let me know if I should have the Bryston on a circuit by itself? Would that result in better sound?

BTW I have always been curious to know how Bryston got its name. I presume you picked it. Can you tell us why?

[eelekim]

Hi James,

My 14B ST is with a 20A socket. Does it mean that it's the 20A version? Or is it just a 10A version with a 20A socket? I'm from Macau. I'm confused...

Best regards,
mike

[James Tanner]

Hi James,

Thanks very much for the response. I have the 240V version. I take it then that a 10A circuit is fine if the Bryston is the only piece of equipment on it but that I should change to a higher current circuit if I have other equipment on the same circuit?

Could you also let me know if I should have the Bryston on a circuit by itself? Would that result in better sound?

BTW I have always been curious to know how Bryston got its name. I presume you picked it. Can you tell us why?

Hi Amdan,


It is always better to have the amp on a circuit that can provide 'high current' and 'low impedance' to the power input of the amplifier. We recently tested a 4B operating at 200 watts into 8ohms and for very short periods on transients it would attempt to draw 50 amps from the wall on a 120/15amp wall plug.   

The Bryston name is made up of letters from the original 3 owners names.

james

[amdan]

Hi James,

Thanks for your response.

It sounds like I should run the 14 B on a circuit with the maximum current I can get.  I am about to get an electrician in to wire it up. Is there any documentation I can look up on what he should do? I presume I should use a low gauge wire. Are there any other considerations?

Regards.

[James Tanner]

Hi Amdan

Yes a low gauge wire is correct but it will probably be part of electrical code requirements anyway.

I recently installed a 240 Volt/60Hz 60 amp circuit for my sound room (Canada is normally 120 Volt/60 Hz 15 amp) and I am running everything off a 60 amp Torus unit.The difference is not subtle.

james

[amdan]

Hi James,

I read in another post that you recommend using 2 Torus units if digital equipment is to be isolated from the amps. How important is this? From your own setup it looks like you decided not to do this.
In case I decide to use 2 Torus units, could you please let me know the sizes I should get. I have a 14 B ST  and wil one day probably get a 4B SST for biamping. The other equipment are tubed CDP and tubed pre-amp.

Could you also let me know of any other tweaks I should install. For example, I was recently told that the switch on a power outlet is connected to the circuit by a thin wire - this defeats the purpose of using low gauge wire from the mains board. He then said that you could get power outlets with a more robust switch mechanism that engages when the power plug is pushed into the power point. I haven't personally looked into this and don't know if the information is accurate.

Anything else I should consider?

Thanks,

[James Tanner]

Hi Amdan,

Yes I just use 1 Torus unit because the Torus transformer design will reduce the problem of one component affecting the next to a large degree. If you want total isolation though then 2 smaller units ensures that.

I  am not familiar with your low gauge wire comment on the power plug but most power plugs will impose a 1-2 ohm load impedance on the amplifiers power input. That's why the Torus really helps. The output impedance on the Torus is only about .04 ohms which makes it easy for the amplifier to draw huge amounts of instantaneous current.


james

[cameraman]

James,

I am in the process of running a dedicated circuit and have both a 120v 15a and 20a breaker available.  Based on your comment, you recommend the 20A?

I will be connecting a 6BSST, 4BST, 7BST, and a 10B Sub at a minimum.  I may consider adding my 50" Plasma, DVD, Cable box and SP2 but they are on a different circuit now and can stay that way. I could run yet another dedicated circuit while I'm making a mess if needed.

I'm in the US.

Thanks.




[/quote]

Hi Amdan,


It is always better to have the amp on a circuit that can provide 'high current' and 'low impedance' to the power input of the amplifier. We recently tested a 4B operating at 200 watts into 8ohms and for very short periods on transients it would attempt to draw 50 amps from the wall on a 120/15amp wall plug.   

The Bryston name is made up of letters from the original 3 owners names.

james
[/quote]

[James Tanner]

James,

I am in the process of running a dedicated circuit and have both a 120v 15a and 20a breaker available.  Based on your comment, you recommend the 20A?

I will be connecting a 6BSST, 4BST, 7BST, and a 10B Sub at a minimum.  I may consider adding my 50" Plasma, DVD, Cable box and SP2 but they are on a different circuit now and can stay that way. I could run yet another dedicated circuit while I'm making a mess if needed.

I'm in the US.

Thanks.

Hi Amdan,


It is always better to have the amp on a circuit that can provide 'high current' and 'low impedance' to the power input of the amplifier. We recently tested a 4B operating at 200 watts into 8ohms and for very short periods on transients it would attempt to draw 50 amps from the wall on a 120/15amp wall plug.   

The Bryston name is made up of letters from the original 3 owners names.

james
[/quote]
[/quote]


Hi Cameraman,

Yes use the 20 amp over the 15 amp-or both if you can. Keep the amplifiers on the 20 amp circuit and everything else on the 15.

The issue is that when an amplifier(s) requires short term power burst (transients) the impedance of the wall plug prevents the current from responding instantaneously to that demand. So the more CURRENT available and the LOWER THE IMPEDANCE of that power source the better. People buy these huge high powered amplifiers not realizing that most of the performance restrictions are a function of the wall plug power source.

james