speaker out on peavey classic 30

Z

zak

New member
I am looking at buying a classic 30 in the next couple of days, with the aim of using a marshall 1x12 cab with it. But i have just read that the speaker out on the peavey is 16ohm. Is this true?
My marshall cab is 8ohm, which i presume means is not suitable.

thanks
zak
By the way thanks for everyone that gave me advice about the classic 50 head. I nearly bought it, but decided a combo may be more suitable for me at the moment. So i tried a classic 30 in a shop today and was very impressed.
 
Re: speaker out on peavey classic 30

For what it is worth. Maybe one of the more knowledable folks here can translate what it means.

Manual says External Speaker Jack "minimum total impedance of 16 ohms". On mine the internal speaker is 16 ohms.

And later we get in the specs.
30 watts RMS into 16 or 8 ohms (Bias must be reduced to measure.)
 
Re: speaker out on peavey classic 30

thanks bert123
can anyone else tell me if there is any way i can use an 8ohm cab with it. My understanding of ohms is very limited, but i presume i cant
 
Re: speaker out on peavey classic 30

Unplug the stock speaker and use your cab in the ext speaker jack. This switches the amp's tap to 8ohms instead of 16. Using a 16ohm cab combined with the 16ohm stock speaker is an 8ohm load. That's the way I understand it.
 
Re: speaker out on peavey classic 30

NT02 said:
Unplug the stock speaker and use your cab in the ext speaker jack. This switches the amp's tap to 8ohms instead of 16. Using a 16ohm cab combined with the 16ohm stock speaker is an 8ohm load. That's the way I understand it.
Click to expand...
Just Checked the Peavey forums. Above info is correct.

If you have a 16 ohm extension cab then pluging it into the classic 30 switches the output transformer to 8 ohm mode and runs the internal and external speakers in parallel.

From Peavey support.
...to run an 8 ohm ext cab...
[1]disconnect the cable going to the internal speaker and tape up the ends...
[2]connect your 8 ohm cab to the extension jack...that way, the amp will see an overall load of 8 ohms and will function properly...
 
Re: speaker out on peavey classic 30

Are there any advantage's running an 8 ohm speaker vs. a 16 ohm speaker?
 
Re: speaker out on peavey classic 30

OK guys new question. I just replaced my internal speaker with a new Eminence Red white & Blues which eminence recommends on their site. It's only made in 8 ohm. I just wired it straight in like the 16 ohm speaker. So far it seems to work fine. Am I going to damage the output tranny?? Should I make a cable to connect the speaker to the extension jack instead?? Thanks.
 
Re: speaker out on peavey classic 30

From what I've read, you're ok. Seems like I read that the amp gets a better bluesy overdrive this way. Check out Blue Guitar for all the info you can handle about the Peavey Classic 30. This guy, Steve A. posted some great articles about all kinds of mods, from changing tubes (with a description of what pre amp tubes are used for clean, dirt, drive), to changing and wiring the speaker to repalcing parts for bettter tone and distortion to adding bias adjustments, master volume, and all kinds of other things. Here's the link.

http://www.blueguitar.org/new/articles/blue_gtr/amps/peavey/c30_origmod.pdf
 
Re: speaker out on peavey classic 30

Thanks for the link. This looks like it solves my problem........."There is a simple trick to switch the built-in speaker from the 16 ohm tap to the 8 ohm tap: plug a bare 1/4" plug into the extension speaker jack. The internal switching contacts of the jack will connect the built-in speaker in parallel to the 8 ohm tap when anything is plugged into the extension speaker jack".
 
Re: speaker out on peavey classic 30

Great lil'amps those C30...

BlueGuitar.org has a lot of useful infos on these amps, and some great mods. I performed a few of them myself and there's some really cool suggestions up there.
 
Re: speaker out on peavey classic 30

Thames, I'm very interested in knowing which mods you have performed and how you feel about them.

I like that little amp, and am looking forward to customizing it. I'd like to make the boost more transparent instead of that huge mid gain. Of course, I can always use a pedal, this amp loves pedals. I interested in what speakers sound good for pretty cleans and a non-muddy overdrive. This amp seems to be a tad mid-heavey, and the treble somewhat unpleasant when cranked. I like the way the eq changes with the addition of a Zinky 2x12 cabinet, but the distortion seems to loose a little edge with this. I'd prefer to get this sound out of one speaker, keeping the combo all inclusive. Something with less mids, tight bass, and chimey highs, not harsh. I've strongly considered a matched JJ tube set, as well, but have fairly new Groove Tubes in it, so I'll wait for that. All that being said, I've already found lots of tones, and feel this amp is more versatile than my 3-channel Fender Hot Rod DeVille ever was. Not as loud, but that's a good thing in my book. I actaully get to hear these tubes breathe. Now if I can only get the rest of the amp to stop buzzing and rattling when I have it cranked!
 
Re: speaker out on peavey classic 30

NT02, I modded the C50, but not the C30.

Starting by swapping the speaker is a good move. The G12H30 is the premium choice for this amp. You could also try a Weber BlueDog for VOX-ish voicing. Great match with EL84s biased hot.

Then the tubes. JJ EL84s are fine but a tad dark and lacks some chime. Ei's are greatly recommended, as well as *real* Teslas. See link.
http://www.kcanostubes.com/EL84.html#a6bq5

Then you could try some mods. Ampage.org forum and WeberVST forum can tell you more about the results. Some people posted their comments on Harmony Central reviews.
 
Re: speaker out on peavey classic 30

Thanks, Thames! I've seen other good things about the G12H30. The tube link and all other info is very helpful.
 
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