SVT 3 pro with 2 410HE cabs?

Morson93 · #1 08-31-2010, 10:34 AM

would this setup work?

Would a SVT CL work with 2 410HE's?

**Lazarus.Bird** · #2 08-31-2010, 10:37 AM

Are you just asking if the impedance will match up? The 410HEs are 8 ohms, so two 410HEs connected in parallel will give you a 4 ohm impedance. Both the SVT-3 Pro and SVT-CL will operate at 4 ohms.

username1 · #3 08-31-2010, 12:29 PM

using 2 of those would be identical to using the 810 which i personally think is the best match for that head. Only problem is you would have to use them both all the time with that head as the svt-cl doesnt do 8 ohms. I think the 810 would be easier to transport.

Morson93 · #4 08-31-2010, 02:46 PM

I was thinking this so i could use one for home practise, but two for playing gigs. The 810 is too much for the house and too heavy to lift up stairs etc. Can i run a 410HLF with a SVT 3pro or a SVT CL? I'd love a CL with a 410HE and HLF but would that work when ran on it's own?

circuitspore · #5 08-31-2010, 02:50 PM

Quote:

Originally Posted by username1

I think the 810 would be easier to transport.

I could not (respectfully) disagree more with this statement. I owned an Ampeg 8x10 for about three weeks. As a 150 lb desk jockey in a house with stairs leading to each entrance, I couldn't get it to rehearsal without help from a bandmate and borrowing the wife's minivan. It had wheels, which are great, until you need to get up a single step. Even that was a hassle.

Two 4x10's, however, will fit in the back seat of my Saturn SL1 and I can get them in there myself.

Morson93 · #6 08-31-2010, 02:58 PM

yeahh that was what i was thinking, plus if i need it quieter, like for home use, i can just use one 4x10 and have the setting louder on the amp? is that correct?

Morson93 · #7 08-31-2010, 03:04 PM

Just been on the ampeg site, The SVT CL works at 2 Ohms and 4 Ohms correct?
The normal inpedience of a 410 HLF is 4 Ohms, so surely this combo would work?
If this does work, would it work with a further 410 HE or 410 HLF?

Thanks for all the help, i'm a noob when it comes to heads and cabs

derridiandrift · #8 08-31-2010, 03:16 PM

Quote:

Originally Posted by username1

I think the 810 would be easier to transport.

Agree

My 810 is relatively easy for me to move and I'm not young or muscle-bound. The caveat is that you need a vehicle with some space to haul it around.

Most of my load-ins are simple with seldom more than 4 or 5 steps. I need help on anything more than a few steps regardless of whether I'm moving a 410 or an 810.

Morson93 · #9 08-31-2010, 03:19 PM

sorry to be rude, but i'm not going to buy the 810, because it's too big and hard to move for what i need. This is why i asked if i could combo up at 410HE and a 410HLF with a CL, and use the CL with just the HLF on it's own if needs be?

derridiandrift · #10 08-31-2010, 03:23 PM

Quote:

Originally Posted by Morson93

Just been on the ampeg site, The SVT CL works at 2 Ohms and 4 Ohms correct?

Yes. Whenever possible, use the correct setting for the impedance of the speakers you're running. However...

I used to run my SVT-CL with my 8 ohm 410HE all the time with no ill effects, and I sometimes run my SVT-VR with an 8 ohm PH-212 cab. The official answer, if you ask someone at Ampeg, is that the amp cannot be run with an 8 ohm cab. I know because I asked.

The answer I got from amp techs who I respect is that there is very little danger of damaging a tube amp this way. I was advised to put the switch in the 4 ohm setting when using an 8 ohm cab. You will notice that the power output will be less, meaning you'll be turning your volume up higher and the amp will distort sooner.

There IS some danger in going the other way... don't run a lower load than the amp's rating.

Love to hear the amp gurus on here chime in...

derridiandrift · #11 08-31-2010, 03:30 PM

Quote:

Originally Posted by Morson93

sorry to be rude, but i'm not going to buy the 810, because it's too big and hard to move for what i need. This is why i asked if i could combo up at 410HE and a 410HLF with a CL, and use the CL with just the HLF on it's own if needs be?

Sorry about taking the thread off topic.

Two 410HE cabs with the horns turned off should sound exactly like one 810. The combination of the two cabs will be taller than the 810, though you could flip them on their sides. The total impedance would be 4 ohms.

One 410HE with one 410HLF would work best if they're both 8 ohm cabs, but I don't know if Ampeg builds the HLF in 8 ohms. I think the hlf was meant to be run as a single cab. Plus, I think those two cabs are so different that there is a chance that combining them might not be complimentary. The only way to know is to try it. My guess is that with will sound... meh

On the other hand, if you like the sound of the HLF, which is very different from the HE, just use the one cab and be done with it. It's rated so high that, with an SVT-CL, I can't imagine running out of steam.

babebambi · #12 08-31-2010, 04:10 PM

Quote:

Originally Posted by derridiandrift

The answer I got from amp techs who I respect is that there is very little danger of damaging a tube amp this way. I was advised to put the switch in the 4 ohm setting when using an 8 ohm cab. You will notice that the power output will be less, meaning you'll be turning your volume up higher and the amp will distort sooner.

There IS some danger in going the other way... don't run a lower load than the amp's rating.

I am no guru, but that is strictly for SS power section. Tube power section works the other way around.

Mismatched impedance will shorten the life of the tubes. The larger the mismatch, the short the life. While extreme mismatch can kill the tubes instantly, but 4/8 ohm mismatch is considered to be very small.

sedan_dad · #13 08-31-2010, 04:28 PM

Quote:

Originally Posted by derridiandrift

Sorry about taking the thread off topic.

Two 410HE cabs with the horns turned off should sound exactly like one 810. .

Not to split hairs here BUT the he's are 4 10's in a sealed box,no baffels.
You'd have 4 10's in each compartment or cabinet.
The 810 is 4 sealed compartments of 2 10's each.
I own 2 he's and a 810. The he's sound good together but it ain't no 810 bottom.

RickenBoogie · #14 08-31-2010, 05:00 PM

Don't mix the 410 he with the 410 hlf, not only are the impedances different, but the whole thing is different. Figure out what you want, sealed 410, or ported 410. Then choose accordingly.

Morson93 · #15 09-01-2010, 10:25 AM

Can you just turn the horns off at a flick of a switch?

The impediance of a SVT 410HE is 8 Ohms

The SVT CL Does 4 Ohms.

I rang PMT Music today and the bloke told me that i can use that cab with that head, it just wouldn't give me all 300W of power, more like 150W.

150W is fine for home use, and i probably wouldn't use 150W at home anyway.

He also said this won't damage the amp? Is that true?

If everything he said is correct, then i'll just get 2 HE's because i can use it at home, and double it up to use at gigs. It'll also be easier to move for me.

Am i missing anything in this post? Does this all sound correct and is it going to work?

Morson93 · #16 09-01-2010, 02:29 PM

anything? please i really need the help

Tommy Hagen · #17 09-01-2010, 02:42 PM

I use a SVT 3 Pro with 2 410HE cabinets. I play a lot of larger rooms and this setup gives me exactly what I need. Both low end and volume. For smaller rooms I just one of the cabinets.
Haven't tried the cabs with a CL.

Tommy

Morson93 · #18 09-02-2010, 10:03 AM

Can the SVT 3 keep up with the sound of a drum kit, but still sound sweet?

Tommy Hagen · #19 09-02-2010, 01:56 PM

Absolutely.

Tommy