What exactly is bridged output? And can I have a bridged output with two
subs on it? I see many amps have much greater wrms values with bridged
output but I need to hook up two subs to one amp. Will that work?

In simplest terms, "bridging" an amp means that you're taking two
output channels from the amp and combining them into one output
channel. The one resulting channel has the potential to provide four
times as much power as one channel did before your bridged the amp.

Here's an example.

You have an amplifier that can provide 25 watts per channel into two
channels, with each channel driving a 4-ohm load. The output voltage
for each channel will have a 10-volt range. Since power is voltage
squared divided by load impedance, each channel is (10 X 10)/4, or 25
Watts. Since you have two channels, the amp can provide 50 Watts
total.

Now let's bridge the amp. When the two channels are combined, the
total output voltage goes from 10 volts to 20 volts. Power is still
voltage squared divided by load impedance, so for a single 4-ohm load,
the output power becomes (20 X 20)/4, or 100 Watts. The amp has gone
from providing a total of 50 Watts (25 times 2 channels) to 100 Watts
(100 times 1 channel).

Not all amplifiers can fully double their output power when bridged -
it depends on if it can provide the extra current required. I have a
Precision Power A1200 that will do 300 X 2 or 1200 X 1, so it can
fully double its power, but my old Linear Power 2202IQ would do 110 X
2, but only 375 X 1, instead of the 440 X 1 it would do if it could
truly double its power into a bridged load.

Scott Gardner

On Wed, 26 May 2004 20:12:08 GMT, "Courtney"
wrote:

What exactly is bridged output? And can I have a bridged output with two
subs on it? I see many amps have much greater wrms values with bridged
output but I need to hook up two subs to one amp. Will that work?

Thanks Scott u helped me understand aswell. Thanks. U really know a
lot about sound. What do u do for a living?

Gerald Boardman



Scott Gardner wrote in message . ..
In simplest terms, "bridging" an amp means that you're taking two
output channels from the amp and combining them into one output
channel. The one resulting channel has the potential to provide four
times as much power as one channel did before your bridged the amp.

Here's an example.

You have an amplifier that can provide 25 watts per channel into two
channels, with each channel driving a 4-ohm load. The output voltage
for each channel will have a 10-volt range. Since power is voltage
squared divided by load impedance, each channel is (10 X 10)/4, or 25
Watts. Since you have two channels, the amp can provide 50 Watts
total.

Now let's bridge the amp. When the two channels are combined, the
total output voltage goes from 10 volts to 20 volts. Power is still
voltage squared divided by load impedance, so for a single 4-ohm load,
the output power becomes (20 X 20)/4, or 100 Watts. The amp has gone
from providing a total of 50 Watts (25 times 2 channels) to 100 Watts
(100 times 1 channel).

Not all amplifiers can fully double their output power when bridged -
it depends on if it can provide the extra current required. I have a
Precision Power A1200 that will do 300 X 2 or 1200 X 1, so it can
fully double its power, but my old Linear Power 2202IQ would do 110 X
2, but only 375 X 1, instead of the 440 X 1 it would do if it could
truly double its power into a bridged load.

Scott Gardner

On Wed, 26 May 2004 20:12:08 GMT, "Courtney"
wrote:

What exactly is bridged output? And can I have a bridged output with two
subs on it? I see many amps have much greater wrms values with bridged
output but I need to hook up two subs to one amp. Will that work?

Is it possible for me to hook up two subs to one bridged channel on an amp
and have each sub receive the total wrms value for the bridged channe? For
example an amp that is 450 wrms bridged into two 400 wrms amps?



"Scott Gardner" wrote in message
news
In simplest terms, "bridging" an amp means that you're taking two
output channels from the amp and combining them into one output
channel. The one resulting channel has the potential to provide four
times as much power as one channel did before your bridged the amp.

Here's an example.

You have an amplifier that can provide 25 watts per channel into two
channels, with each channel driving a 4-ohm load. The output voltage
for each channel will have a 10-volt range. Since power is voltage
squared divided by load impedance, each channel is (10 X 10)/4, or 25
Watts. Since you have two channels, the amp can provide 50 Watts
total.

Now let's bridge the amp. When the two channels are combined, the
total output voltage goes from 10 volts to 20 volts. Power is still
voltage squared divided by load impedance, so for a single 4-ohm load,
the output power becomes (20 X 20)/4, or 100 Watts. The amp has gone
from providing a total of 50 Watts (25 times 2 channels) to 100 Watts
(100 times 1 channel).

Not all amplifiers can fully double their output power when bridged -
it depends on if it can provide the extra current required. I have a
Precision Power A1200 that will do 300 X 2 or 1200 X 1, so it can
fully double its power, but my old Linear Power 2202IQ would do 110 X
2, but only 375 X 1, instead of the 440 X 1 it would do if it could
truly double its power into a bridged load.

Scott Gardner

On Wed, 26 May 2004 20:12:08 GMT, "Courtney"
wrote:

What exactly is bridged output? And can I have a bridged output with two
subs on it? I see many amps have much greater wrms values with bridged
output but I need to hook up two subs to one amp. Will that work?

No. If the amp can only provide 450 WRMS into a four-ohm mono load,
that's all it's going to provide, whether the four-ohm load is a
single speaker or a dozen.

Scott Gardner

On Thu, 27 May 2004 21:47:43 GMT, "Courtney"
wrote:

Is it possible for me to hook up two subs to one bridged channel on an amp
and have each sub receive the total wrms value for the bridged channe? For
example an amp that is 450 wrms bridged into two 400 wrms amps?



"Scott Gardner" wrote in message
news
In simplest terms, "bridging" an amp means that you're taking two
output channels from the amp and combining them into one output
channel. The one resulting channel has the potential to provide four
times as much power as one channel did before your bridged the amp.

Here's an example.

You have an amplifier that can provide 25 watts per channel into two
channels, with each channel driving a 4-ohm load. The output voltage
for each channel will have a 10-volt range. Since power is voltage
squared divided by load impedance, each channel is (10 X 10)/4, or 25
Watts. Since you have two channels, the amp can provide 50 Watts
total.

Now let's bridge the amp. When the two channels are combined, the
total output voltage goes from 10 volts to 20 volts. Power is still
voltage squared divided by load impedance, so for a single 4-ohm load,
the output power becomes (20 X 20)/4, or 100 Watts. The amp has gone
from providing a total of 50 Watts (25 times 2 channels) to 100 Watts
(100 times 1 channel).

Not all amplifiers can fully double their output power when bridged -
it depends on if it can provide the extra current required. I have a
Precision Power A1200 that will do 300 X 2 or 1200 X 1, so it can
fully double its power, but my old Linear Power 2202IQ would do 110 X
2, but only 375 X 1, instead of the 440 X 1 it would do if it could
truly double its power into a bridged load.

Scott Gardner

On Wed, 26 May 2004 20:12:08 GMT, "Courtney"
wrote:

What exactly is bridged output? And can I have a bridged output with two
subs on it? I see many amps have much greater wrms values with bridged
output but I need to hook up two subs to one amp. Will that work?

So how do I calculate the wrms going into one of two subs connected to one
bridge channel in parallel? Do I just divide by two the amount of wattage
being provided by the amp?


"Scott Gardner" wrote in message
...
No. If the amp can only provide 450 WRMS into a four-ohm mono load,
that's all it's going to provide, whether the four-ohm load is a
single speaker or a dozen.

Scott Gardner

On Thu, 27 May 2004 21:47:43 GMT, "Courtney"
wrote:

Is it possible for me to hook up two subs to one bridged channel on an
amp
and have each sub receive the total wrms value for the bridged channe?
For
example an amp that is 450 wrms bridged into two 400 wrms amps?



"Scott Gardner" wrote in message
news
In simplest terms, "bridging" an amp means that you're taking two
output channels from the amp and combining them into one output
channel. The one resulting channel has the potential to provide four
times as much power as one channel did before your bridged the amp.

Here's an example.

You have an amplifier that can provide 25 watts per channel into two
channels, with each channel driving a 4-ohm load. The output voltage
for each channel will have a 10-volt range. Since power is voltage
squared divided by load impedance, each channel is (10 X 10)/4, or 25
Watts. Since you have two channels, the amp can provide 50 Watts
total.

Now let's bridge the amp. When the two channels are combined, the
total output voltage goes from 10 volts to 20 volts. Power is still
voltage squared divided by load impedance, so for a single 4-ohm load,
the output power becomes (20 X 20)/4, or 100 Watts. The amp has gone
from providing a total of 50 Watts (25 times 2 channels) to 100 Watts
(100 times 1 channel).

Not all amplifiers can fully double their output power when bridged -
it depends on if it can provide the extra current required. I have a
Precision Power A1200 that will do 300 X 2 or 1200 X 1, so it can
fully double its power, but my old Linear Power 2202IQ would do 110 X
2, but only 375 X 1, instead of the 440 X 1 it would do if it could
truly double its power into a bridged load.

Scott Gardner

On Wed, 26 May 2004 20:12:08 GMT, "Courtney"
wrote:

What exactly is bridged output? And can I have a bridged output with
two
subs on it? I see many amps have much greater wrms values with
bridged
output but I need to hook up two subs to one amp. Will that work?

Yes, as long as the subs are identical and wired the same way, the
power will be divided evenly between them.

Scott Gardner


On Fri, 28 May 2004 04:05:16 GMT, "Courtney"
wrote:

So how do I calculate the wrms going into one of two subs connected to one
bridge channel in parallel? Do I just divide by two the amount of wattage
being provided by the amp?


"Scott Gardner" wrote in message
.. .
No. If the amp can only provide 450 WRMS into a four-ohm mono load,
that's all it's going to provide, whether the four-ohm load is a
single speaker or a dozen.

Scott Gardner

On Thu, 27 May 2004 21:47:43 GMT, "Courtney"
wrote:

Is it possible for me to hook up two subs to one bridged channel on an
amp
and have each sub receive the total wrms value for the bridged channe?
For
example an amp that is 450 wrms bridged into two 400 wrms amps?



"Scott Gardner" wrote in message
news In simplest terms, "bridging" an amp means that you're taking two
output channels from the amp and combining them into one output
channel. The one resulting channel has the potential to provide four
times as much power as one channel did before your bridged the amp.

Here's an example.

You have an amplifier that can provide 25 watts per channel into two
channels, with each channel driving a 4-ohm load. The output voltage
for each channel will have a 10-volt range. Since power is voltage
squared divided by load impedance, each channel is (10 X 10)/4, or 25
Watts. Since you have two channels, the amp can provide 50 Watts
total.

Now let's bridge the amp. When the two channels are combined, the
total output voltage goes from 10 volts to 20 volts. Power is still
voltage squared divided by load impedance, so for a single 4-ohm load,
the output power becomes (20 X 20)/4, or 100 Watts. The amp has gone
from providing a total of 50 Watts (25 times 2 channels) to 100 Watts
(100 times 1 channel).

Not all amplifiers can fully double their output power when bridged -
it depends on if it can provide the extra current required. I have a
Precision Power A1200 that will do 300 X 2 or 1200 X 1, so it can
fully double its power, but my old Linear Power 2202IQ would do 110 X
2, but only 375 X 1, instead of the 440 X 1 it would do if it could
truly double its power into a bridged load.

Scott Gardner

On Wed, 26 May 2004 20:12:08 GMT, "Courtney"
wrote:

What exactly is bridged output? And can I have a bridged output with
two
subs on it? I see many amps have much greater wrms values with
bridged
output but I need to hook up two subs to one amp. Will that work?