ampeg svt 2 problem

leftychris · #1 03-31-2011, 10:35 AM

calling all tech heads !! ive sent my svt 2 pro to the shop to get looked at, problem was it had a loud hum with no input, the amp tech has looked at it several times they changed a cracked 6550 tube but that was it, however they told be today they discovered the hum goes away when using a 4 ohm cab as opposed to an 8 ohm, however this being a stereo head i would have to run my ampeg 810e cab in mono mode to get a 4 ohm impedance thus only using one half of the amp, there is no 8 ohm setting on the amp so say hypethically this amp was brand new with no problems could i run an 8 ohm cab with the amp switched to 4 ohm ??

stiles72 · #2 03-31-2011, 10:57 AM

The SVT-2 Pro is not a stereo head, and it should only be ran at either a 4 ohm or a 2 ohm load. You shouldn't be running an 8 ohm load on it.

Alex1984 · #3 03-31-2011, 10:58 AM

No. And it's not exactly a stereo amp, it's a mono amp with parallel outputs, ie. it allows you to plug 2 cabs into the same output. You should probably stay on the safe side and use a 4 ohm load or 2 8 ohm loads.

leftychris · #4 03-31-2011, 12:17 PM

hi guys thanks for your replies alex you say it allows you to plug two cables in wot exactly is the second output for if its a mono amp

Alex1984 · #5 03-31-2011, 12:49 PM

Both outputs jacks are tied together. It's parallel output and not separated at all.

Picture this: instead of having 2 separate faucets (stereo), you've got a faucet splitter attached to a single faucet (parallel mono).

BassBob1 · #6 03-31-2011, 02:02 PM

the purpose of the two output jacks (parallel mono) is so you can hook up two cabs directly to the head if you so choose instead of daisy chaining 2 cabs together thru one output jack. the results are the same. but you should not be running that head at anything other than 4 or 2ohms.