DVC wiring questions..

[JRace]

What would/could happen if you wire your DVC's:

1) with a different signal to each coil?
2) only hook up one VC?

I was always under the impression that you should always hook both vc's to the same output of am amp, and to only use both VC's atthe same time.

Thanks,

 

[Iron-Wizard]

You should use both or you are wasting half of the wire in the gap, same amp helps as the signal should be mono and the same Fq basically so nothing goes wrong.

 

[ShinOBIWAN]

What would/could happen if you wire your DVC's:

1) with a different signal to each coil?
2) only hook up one VC?

I was always under the impression that you should always hook both vc's to the same output of am amp, and to only use both VC's atthe same time.

Thanks,

If you only connect up one coil in a DVC driver you are effectively changing the electrical TS parameters, though the mechanical ones remain the same.

Hooking up different signals can be done and Volt amongst others recommend this when passing stereo bass information to a single driver.

If you've got a powerful amp then wire the coils in parallel, it increases acoustic output by 3dB but doubles the required powers since the impedance is halved. For example wiring 4ohm DVC in parallel would mean the amp 'sees' a 2ohm load. Which is tough going for most. The other option is wiring the VC's in series which doesn't offer any benefit other than maintaining the load the amp see's ie. 4ohm DVC in series is still 4ohm.

 

[xplod1236]

4ohm DVC in series is still 4ohm.

Two 4-ohm coils in series is 8 ohms.

 

[ShinOBIWAN]

Two 4-ohm coils in series is 8 ohms.

Your entirely right, thanks for the correction.

 

[Collo]

The Q changes also.

conversions here:

http://www.users.bigpond.com/bcolliso/driver-conversions.htm

 

[AndrewT]

Hi,
you could wire a 2channel amp up to the DVC.
one channel to each half of the VC.

Eases the loading on the amplifiers and allows a stereo signal to be summed at the speaker without any electronics being added.

eg. a 50W into 8ohm stereo amp would give about 80W into 4ohms ( if it can drive 4ohms) and with both VCs connected to the pair of amp outputs, you now have 80+80W (160W) into your speaker, instead of 50W from a single channel amplifer.