SVC or DVC ... again

[fiksdal]

I am planning on building a pair of sonotubes with a 15" TC-2000, driven by a Crown CE4000, QSC RMX2450 or similar. I am new to the DIY-sub-scene so I am really confused as whether to go for SVC or DVC. I will probably start with one amp, but depending on how this sounds I could, down the line, run the tubes with one amp each in bridged-mono mode. How will that impact my choice of SVC/DVC?

I have tried to model the tube in WinISD, 9 ft^3 and tuned to 16Hz, but as this is my first try I am not sure I am doing it correctly.

When it comes to purchasing the woofer I guess it all filters down to one question:

Does the DVC model run on one VC perform any different than the SVC model??

[fiksdal]

I'd like to plan ahead, but there are still to many holes in my knowledge regarding this.

The woofer is rated as SVC 4 ohm or DVC 4 ohm. I guess the possible configurations for 2 tubes and one amp (CE4000) are:

• 1. SVC 4 ohm, amp in stereo mode 2 x 1200W
• 2. SVC wired in series with other tube --> 8 ohm, amp on bridged mono mode 1 x 2400W
• 3. DVC wired in parallell --> 2 ohm, amp in stereo mode 2 x 1400W
• 4. DVC wired in series --> 8 ohm, amp in stereo mode 2 x 600W
• 5. DVC wired in parallell --> 2 ohm, wired in series with the other tube --> 4 ohm, amp in bridged mono mode 1 x 2800W

For 2 tubes and 2 amps:

• 6. SVC 4 ohm, amp in bridged mono mode 1 x 2800W
• 7. DVC wired in series --> 8 ohm, amp in bridged mono mode 1 x 2400W

So the best performance order would be (SVC is underlined, 2 amps in bold) :

6 - 7 - 5 - 2 - 3 - 1 - 4 ??

Option 5 and 2 has the added disadvantage of running an extra cable between the 2 tubes.

Unless I have misunderstood how you wire a woofer, I don't see much difference between option 5 and 2 in the 1 amp config, or between option 6 and 7 in the 2 amp config. So does it really come down to a cointoss??

Also does the DVC have the same "amount" of VC as a SVC? So if I hooked up only 1 VC from the DVC, that would equal 1/2 SVC?? If not, I fail to see why SVC would be available together with a DVC model.

Comments please, is my thinking correct here?