4 Cabs from 2 Outputs w/ Sunn Model T?

[jdfarrell81]

Hi all,

On at least one occasion I've seen an amp's instruction manual discourage daisy chaining 2 cabs from the same output, but I don't see the problem. Am I wrong?

I ask because I have four 1x15, 8 ohm cabs I'd like to run from a vintage Sunn Model T. The 2 ohm load wouldn't be a problem, and I see no reason that I can't safely run 2 cabs from each of the Model T's 2 outputs.

Any insight would be greatly appreciated. Much thanks!

[BassmanPaul]

I prefer to connect each of my cabinets by a separate cable to the amp. This minimizes the voltage drop in each cable. Electrically, connecting the amp to one cabinet and then daisy chaining the rest is the same as daisy chaining two sets of cabinets together and then connecting each set to a different output on the amp assuming a single channel amp.

Paul

[jdfarrell81]

Originally Posted by BassmanPaul

I prefer to connect each of my cabinets by a separate cable to the amp. This minimizes the voltage drop in each cable. Electrically, connecting the amp to one cabinet and then daisy chaining the rest is the same as daisy chaining two sets of cabinets together and then connecting each set to a different output on the amp assuming a single channel amp.

Paul

Hi Paul,

Thank you for the response. I'm not electrically savvy; in practical terms, what are the consequences of voltage drop in the cable?

My primary concern is damaging the amp.

Thanks again.

[Stumbo]

I checked out the amp manual. Looks like 4 ohms minimum (not 2 ohms) is what it can handle. Maybe one of TB's Sunn experts can chime in. Ask johnk_10 if he doesn't respond to the thread.

From the manual:

V. MAIN SPEAKER JACK - This is the main plug-in
connection for your speaker enclosure and should
always be used as the primary connection. If your
Model T is in the on and ready to play position, make
sure a load of at least 4½ is present. Failure to do so
may result in your Model T being damaged by using
an improper impedance load. As a rule of thumb,
ALWAYS connect or disconnect any speaker
enclosure to your Model T with the power off.
W. LOAD IMPEDANCE - This switch allows the
selection of different impedance loads for your
loudspeaker enclosure(s). Make sure to match the
TOTAL speaker’s load impedance to the load
impedance selector switch setting. Failure to do so
may result in your Model T being damaged by using
an improper impedance load.

MODEL T REAR PANEL FUNCTIONS, CON’T
Speaker Cabinets:
1 16ohm Cabinet Load: 16ohm
2 16ohm Cabinets Load: 8ohm
1 8ohm Cabinet Load: 8ohm
2 8ohm Cabinets Load: 4ohm

Found here: PDF manual http://www.sunnamps.com/pdfs/manuals...nn_Model_T.pdf

[jdfarrell81]

Thanks for the reply. The catch is: that manual is for Fender's 1990s reissue of the Model. The original Model T isn't a dedicated guitar amp, and has an impedance selector that goes all the way down to 2.