Best way to connect DVC to an Amplifier.

[Kuljeet]

Hi,

I have single Pioneer 1211D4 DVC subwoofer, which forms 8ohms in series and 2 ohms in parallel with a 400W nominal power and 1400W max power. These are my only two options.
and want to buy Pioneer GM-E7002 2 channel amp, it has 70W x 2 (@ 4 ohms) , 95W X 2 (@ 2 ohms) and Bridged 190W X 1 (@ 4 ohms).

So, my question is:

1. What should be the best specs of the amp for this single DVC subwoofer?
2. Does Bridged 190W X 1 (@ 4 ohms) is same as 95W X 2 (@ 2 ohms), if I connect sub with 2 ohm configuration to amp with 2 ohm load to one channel of the amp? Will it produce same amount of power at bridged 4 ohm compare to single 2 ohm channel ?
3. Does bridging two 4 ohm channels lead to mono 8 ohms or 4 ohms ?
4. Should I connect the sub in 2 ohm config to 95W X 1 (2 ohm ) single channel of the amp or 8 ohm config to bridged 190W x 1 (4 ohm) of the amp?

thanks and please guide.

 

[TLS Guy]

Hi,

I have single Pioneer 1211D4 DVC subwoofer, which forms 8ohms in series and 2 ohms in parallel with a 400W nominal power and 1400W max power. These are my only two options.
and want to buy Pioneer GM-E7002 2 channel amp, it has 70W x 2 (@ 4 ohms) , 95W X 2 (@ 2 ohms) and Bridged 190W X 1 (@ 4 ohms).

So, my question is:

1. What should be the best specs of the amp for this single DVC subwoofer?
2. Does Bridged 190W X 1 (@ 4 ohms) is same as 95W X 2 (@ 2 ohms), if I connect sub with 2 ohm configuration to amp with 2 ohm load to one channel of the amp? Will it produce same amount of power at bridged 4 ohm compare to single 2 ohm channel ?
3. Does bridging two 4 ohm channels lead to mono 8 ohms or 4 ohms ?
4. Should I connect the sub in 2 ohm config to 95W X 1 (2 ohm ) single channel of the amp or 8 ohm config to bridged 190W x 1 (4 ohm) of the amp?

thanks and please guide.

You connect each channel to one voice coil. That will give you four ohm impedance to each channel. If you bridge you must put the VCs in series. I do not recommend bridging generally.

 

[highfigh]

Hi,

I have single Pioneer 1211D4 DVC subwoofer, which forms 8ohms in series and 2 ohms in parallel with a 400W nominal power and 1400W max power. These are my only two options.
and want to buy Pioneer GM-E7002 2 channel amp, it has 70W x 2 (@ 4 ohms) , 95W X 2 (@ 2 ohms) and Bridged 190W X 1 (@ 4 ohms).

So, my question is:

1. What should be the best specs of the amp for this single DVC subwoofer?
2. Does Bridged 190W X 1 (@ 4 ohms) is same as 95W X 2 (@ 2 ohms), if I connect sub with 2 ohm configuration to amp with 2 ohm load to one channel of the amp? Will it produce same amount of power at bridged 4 ohm compare to single 2 ohm channel ?
3. Does bridging two 4 ohm channels lead to mono 8 ohms or 4 ohms ?
4. Should I connect the sub in 2 ohm config to 95W X 1 (2 ohm ) single channel of the amp or 8 ohm config to bridged 190W x 1 (4 ohm) of the amp?

thanks and please guide.

Go to a site called 'the12volt.com'- it deals with car audio and this woofer was made for car audio. They have lots of technical info about how impedance and power interact.

The cliff notes:

When the impedance is cut in half, the amplifier's theoretical power output doubles and if the impedance doubles, the power is cut in half.

Bridging an amplifier will theoretically cause the power to increase more than cutting the impedance to 2 Ohms but some amplifiers aren't able to hit the magic numbers because of their low cost.

A bridged amp reacts to the speaker's impedance as if it were half of what it is, which means that connecting a driver with two 4 Ohm voice coils in parallel will probably make it fail, smoke, whatever you want to call it. It may work at low power levels, but it won't survive long if it's cranked.

Consumer audio equipment that is designed to use AC power (meaning it's not made for 12VDC connection) will generally not be designed for 2 Ohms unless it's made for the pro market or one of the brands that actually wants their equipment to be seen as 'better' because it can survive connection to speakers with difficult impedance. That doesn't mean it will work well with this woofer, though.

You showed 95Wx2 into 2 Ohms- you would need two of these woofers to achieve that.

 

[Kuljeet]

Go to a site called 'the12volt.com'- it deals with car audio and this woofer was made for car audio. They have lots of technical info about how impedance and power interact.

The cliff notes:

When the impedance is cut in half, the amplifier's theoretical power output doubles and if the impedance doubles, the power is cut in half.

Bridging an amplifier will theoretically cause the power to increase more than cutting the impedance to 2 Ohms but some amplifiers aren't able to hit the magic numbers because of their low cost.

A bridged amp reacts to the speaker's impedance as if it were half of what it is, which means that connecting a driver with two 4 Ohm voice coils in parallel will probably make it fail, smoke, whatever you want to call it. It may work at low power levels, but it won't survive long if it's cranked.

Consumer audio equipment that is designed to use AC power (meaning it's not made for 12VDC connection) will generally not be designed for 2 Ohms unless it's made for the pro market or one of the brands that actually wants their equipment to be seen as 'better' because it can survive connection to speakers with difficult impedance. That doesn't mean it will work well with this woofer, though.

You showed 95Wx2 into 2 Ohms- you would need two of these woofers to achieve that.

It means neither I can connect woofer with 8ohm config to 4ohm bridged amp nor to the one connector of 2ohm amplifier? Right?