ampeg question

[dangerkirk]

i don't know if i read this on here or heard it from someone

but if i remember correctly someone told me ampeg tube heads should not have there impedance should not be switched above 8ohms?

is there any truth to this?

will it like kill my beloved SVT?

 

[rodl2005]

If U R talking about a SVT-CL or any ALL tube SVT- DON'T DO IT!!! They're made to run @ 4 or 2 OHMS ONLY!!! It COULD die!!! Please run it at 4 or 2 ohms! they'll do this for yrs!

 

[RickenBoogie]

+1 2 0r 4 ohms only.

 

[jarrod cunningham]

2 or 4 ohms ..... no 8 ohms .......

 

[anderbass]

I see you have a Ampeg SVT 100...
What speaker-ohm info is printed on your amps back panel or manual? (is there a 2-4-8 ohm switch)

 

[dangerkirk]

yea there is a ohm switch it goes from 4 to 8 to 16

 

[mrkreuzschlitz]

if it goes to 8 ohms, i'd imagine yours can handle it.

 

[bthiemann80]

if it goes to 8 ohms, i'd imagine yours can handle it.

+1

I have had a SVT-CL for years and have been considering putting it with a couple 410HE's but was concered that if I wanted to only use one of them, my 4 ohm amp wouldnt be able to handle the 8 ohm cab. So I shot an email to Ampeg, heres what they shot back:

Hi Bob,

Technically it's not recommended to run the CL at 8 ohms. Only 2 or 4. However, I've run my CL for many years now into a 410HE and never had any problems what so ever. You can usually go one impedance rating above the suggested rating but like I said, it's not the most efficient way to run it.
Hope this helps!!!! Feel free to hit me back here anytime!

Best Regards,

Dino Monoxelos
Global Ampeg Product Specialist
LOUD Technologies Inc.
[email protected]
[email protected]
www.ampeg.com

 

[jarrod cunningham]

jerrold tiers has repeatedly said NO to this question ... ill go by it .

 

[anderbass]

yea there is a ohm switch it goes from 4 to 8 to 16

Then your model is completely safe to use any cab loads that match your recommended ohm settings.

The "dont run an SVT at 8 ohm" warnings you've seen on this forum are referring to the 300-watt all-tube SVT models.
(the rear panel ohm info on these models are all factory labeled for use at 4 or 2 ohm and dont even mention 8 ohm)

The real message of those 8 ohm warnings is to simply follow the ohm settings/conections that are printed on your particular model. (Ampeg or any other brand)

 

[tangerinedream]

I saw on Ampag web site that les ohms more power like 4ohme 350watts or 8ohme 200watt is this right Marshall mit be to I am going to look

 

[Ric5]

My Ampeg b2r is designed to run at 4 or 8 ohms ... but not 2 ohms ...