Electrical Connection for two (2) Bryston 7B-SST2 Amps and Sources

0 Members and 1 Guest are viewing this topic. Read 2445 times.

Samurai7595

When using two (2) Bryston 7B-SST2 mono power amps, can these be connected to the same 15A electrical power outlet via a high-end powerbar (along with Bryston sources like the BP-26, BP-1.5, BCD-1, BDA-2 and BDP-2)?



turnovertherecord

  • Jr. Member
  • Posts: 244
  • rain,fog,snow,sun,known to happen on the same day
A 15 amp supply for one amp will be ok

A 15 amp supply for 2 amps not so good

A 20 amps supply per amp ideal will be able to work at higher loads

Power Consumption and Heat Load: At Idle, 215 Watts; Max. Heat Dissipation, 733 Btu/Hr; output @ 600W @ 8 ohms, 1284 Watts; Max. Heat Dissipation 8 ohms, 2333 Btu/Hr; output @ 900W @ 4 ohms, 1980 Watts; Max. Heat Dissipation, 3684 Btu/Hr.

SHV

  • Full Member
  • Posts: 410
When using two (2) Bryston 7B-SST2 mono power amps, can these be connected to the same 15A electrical power outlet via a high-end powerbar (along with Bryston sources like the BP-26, BP-1.5, BCD-1, BDA-2 and BDP-2)?

In the past, I have run 7Bs and other gear off a 15A power outlet in an apartment without problems.

Steve

BrysTony

In the past, I have run 7Bs and other gear off a 15A power outlet in an apartment without problems.

Steve

I completely agree with this statement.  I do not believe there is any issue with two 7Bs and other equip on a 15 amp circuit.  Sometime ago I posted the following and did not get any comment.

 "I have been wondering about the power consumption for some time.  According to the Bryston specification my 7BSST2 amplifiers draw 215 watts each at idle.  If I have my BDP-1, BDA-1, BP-26 and the 7BSST2 X 2 powered on but not playing music, actual power consumption (measured with a Fluke 322 clamp meter and power splitter) is about 190 watts.  Playing music at normal volume increases power consumption to about 325 watts.  If I measure a lamp with a 100 watt bulb that is close to what I measure giving me some confidence of the measurement accuracy.  So, given that what I measure is nowhere close to what the specs are telling me, I would appreciate any comment  regarding what others have experienced.  It seems to me that total power consumption is a non-issue."

Tony

Rupret

I have no measurements but I'm running a similar configuration as described in BrysTony's post  (BDP-1, BDA-1, BCD-1, BP-26 and the 7BSST2 X 2) connected to a TORUS BIT15 plugged into a single 15A outlet and it seems fine.  It may sound better using a pair of 20A circuits but I haven't tried that so I can't say.  Ignorance is bliss sometimes.

bjski

BDC-1,BDP-1,BDA-2,BHA-1,2,7BSST/2,Bat32-SE connected to a Bit-20,no problems.

PRELUDE

When using two (2) Bryston 7B-SST2 mono power amps, can these be connected to the same 15A electrical power outlet via a high-end powerbar (along with Bryston sources like the BP-26, BP-1.5, BCD-1, BDA-2 and BDP-2)?
Same power outlet or not does not mean anything when you have let's say total of 6 outlets in the room and they all run with only one 15A breaker. You cannot only change the breaker to 20A either. If you do it is not safe, and if you push hard your wire will catch on fire before the breaker trip.
Unless you change all the wires from #14AWG to #12AWG but again, are you going to do it and use few breakers for only one room.
How about if someone live in an apartment that does not own and cannot change anything?
Usually the safe and correct way is, to use only 80% of the maximum capacity under continuous load.
Let's say for only one 15A:
120v x 15a=1800w   this is your maximum capacity
1800w x .80=1440w  your 80%
7BSST2 draw 250w each at idle and even if you play loud but I hope not full power, you would use around 650w each and you have 5 source components which I would say each one would use 30w at max. (I only have the BDP-1=30w and BDA-1= 10w)
If you do not connect any thing else to this outlet, you are using 1450w which is your 80% and you should be fine.

tim92gts

In real world music as opposed to test sine wave you're very unlikely to use full specced power.

With the 14Bs (eq to 2x 7B) i approach clipping volume under 1.5 kW power input each so that confirms Preludes figures.

i used to assume about 30% of the input went out as heat.