garfo
Registered User
Join date: Mar 2013
30 IQ
#1
So, my amp works 55 watts at 4 ohms.
I can select from 4/8/16 ohms working operation.
If I use a speaker that is rated 35 watts 8ohms, does it take the load of the amp working on 8 ohms?
red.guitar
Imagine All The People
Join date: Mar 2007
160 IQ
#2
I guess it would work, but you risk blowing the speaker... As long as you make sure to select 8ohms on your amp.

If you play at really low volumes, it should be fine tho.

If it was me, I wouldn't risk it.
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Join date: Mar 2008
750 IQ
#3
This is your V55 right?

You would set the amp to 8 ohms to match up your new speaker but I agree that a 35 watt speaker is not ideal. Ideally you want to be at 55 or even a bit higher. I'd be looking at 60 watt speakers and higher. I think you were interested in cleans and using pedals for dirt no? What speaker did you find that was 35 watts?
gumbilicious
beginner
Join date: Oct 2007
250 IQ
#4
yes, set the amp to 8 ohms with your speaker.

the 35 watt rating on the speaker can potentially be inadequate at some point. i am pretty adventuresome with my speakers, to me a 55 watt to 35 watt mismatch something to be wary of but i may still run it depending on the situation.

mind you, i am so adventuresome because:
1) i have dealt with a bunch of speakers
2) i have mismatched speaker power handling before
3) i can generally tell (from the sound of the speaker) if it is becoming stressed
4) i won't be heart broken if a blow the speaker

if that doesn't describe you, then maybe you should consider another speaker with a higher power handling.
punk isn't dead, it's always smelled that way.

"A perfection of means, and confusion of aims, seems to be our main problem."
-ae
Last edited by gumbilicious at May 1, 2013,
red.guitar
Imagine All The People
Join date: Mar 2007
160 IQ
#5
Take a look at the Eminence c-rex. Its got a hemp cone and has louder breakup. Really smooth all around.


Cheap too. Like $85 new
Guitars:
PRS Custom 24
Gibson Les Paul 60's Tribute
85' MIJ Strat
97' Snakepit Les Paul
LP Traditional 1960 Zebra
02' Dean TC Z

Amps:
EVH 5150iii
Peavey Ultra 112
Jet City JCA50H
Peavey VTM 60
Peavey XXX
66' Bassman
311ZOSOVHJH
G G A - B A B Y
Join date: Mar 2008
750 IQ
#6
Quote by gumbilicious
yes, set the amp to 8 ohms with your speaker.

the 35 watt rating on the speaker can potentially be inadequate at some point. i am pretty adventuresome with my speakers, to me a 55 watt to 35 watt mismatch something to be wary of but i may still run it depending on the situation.

mind you, i am so adventuresome because:
1) i have dealt with a bunch of speakers
2) i have mismatched speaker power handling before
3) i can generally tell (from the sound of the speaker) if it is becoming stressed
4) i won't be heart broken if a blow the speaker

if that doesn't describe you, then maybe you should consider another speaker with a higher power handling.


I agree with the bolded part and I've mismatched before too but based on some prior threads by this TS and the fact he is talking about a Bugera V55 that has had known power section/heat sink issues I decided to post the 'safe' answer
garfo
Registered User
Join date: Mar 2013
30 IQ
#7
Quote by 311ZOSOVHJH
This is your V55 right?

You would set the amp to 8 ohms to match up your new speaker but I agree that a 35 watt speaker is not ideal. Ideally you want to be at 55 or even a bit higher. I'd be looking at 60 watt speakers and higher. I think you were interested in cleans and using pedals for dirt no? What speaker did you find that was 35 watts?

The Jensen C12Q 8 ohms.Thge reason why I was looking at this is because the 50 and 100 watts versions are double the price.Also, I don't know why, but I've always been under the impression that the load of the amp also had connection with the power consumption.WIMWT is, if an amp is 55watts at 4 ohms, then at 8 ohms should be somewhere arround 25watts..!?!But maybe that's just a silly idea, honestly, I don't know where it came from.
Last edited by garfo at May 1, 2013,
Dave_Mc
Chirp and Swirl
Join date: Mar 2005
440 IQ
#8
the load only affects the power in solid state amps, as far as i'm aware.
Quote by crownegamers
I saw in a couple of pictures that on Bucketheads Les Paul (only some pictures) that his neck pickup is painted in white. Can anyone explain to me why he would do this, and if there are any pros and cons.

Quote by dspellman
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Roc8995
Moderator
Join date: Nov 2005
250 IQ
#9
It affects power in tube amps, but differently. It's a less linear relationship. With a 2:1 mismatch on a tube amp you lose (officially) 10.5% efficiency. So instead of a SS amp where it's rated for 200 watts at 4 ohms and 100 at 8, with a tube amp you'd get 55 watts at 4 ohms and 49 point something at 8.

These are 'spherical cow' numbers so they'll be different in real life, but they're good enough for our purposes.
garfo
Registered User
Join date: Mar 2013
30 IQ
#10
Quote by Roc8995
It affects power in tube amps, but differently. It's a less linear relationship. With a 2:1 mismatch on a tube amp you lose (officially) 10.5% efficiency. So instead of a SS amp where it's rated for 200 watts at 4 ohms and 100 at 8, with a tube amp you'd get 55 watts at 4 ohms and 49 point something at 8.

These are 'spherical cow' numbers so they'll be different in real life, but they're good enough for our purposes.

oh yeah, it means I need a 100watts speaker
Arby911
Finding the Pattern
Join date: Jul 2010
110 IQ
#11
Quote by Roc8995


These are 'spherical cow' numbers so they'll be different in real life, but they're good enough for our purposes.


Abstract Physicist humor FTW!!!
“Ignorance more frequently begets confidence than does knowledge.”
Charles Darwin
gumbilicious
beginner
Join date: Oct 2007
250 IQ
#12
Quote by garfo
The Jensen C12Q 8 ohms.Thge reason why I was looking at this is because the 50 and 100 watts versions are double the price.


a 'higher wattage' speaker pretty much means three things:
1) beefier voice coil
2) heftier suspension parts
3) bigger permanent magnet

the bigger magnet is usually the thing that drives up the price.

Quote by garfo
Also, I don't know why, but I've always been under the impression that the load of the amp also had connection with the power consumption.


tube amps use an output transformer to match the impedance of the circuit with the speaker, it allows for optimal performance when the impedance is matched.

solid state amps have circuits loaded directly by the speaker.

in both of these cases changing the impedance from what is expected has consequences on the sound output, but the two types of amps react quite differently when you change the impedance.

Quote by garfo
WIMWT is, if an amp is 55watts at 4 ohms, then at 8 ohms should be somewhere arround 25watts..!?!But maybe that's just a silly idea, honestly, I don't know where it came from.


that is similar to how a solid state amp works. like this the specs on a crown power amp

550W, Stereo, 2 Ohms
350W, Stereo, 4 Ohms
215W, Stereo, 8 Ohms

tube amp's aren't really assigned a variable output because the output transformer effectively corrects for different speaker impedances when 'matched' to the cabinet (the output transformer isn't perfect though, see colin's/roc's post).
punk isn't dead, it's always smelled that way.

"A perfection of means, and confusion of aims, seems to be our main problem."
-ae
Dave_Mc
Chirp and Swirl
Join date: Mar 2005
440 IQ
#13
Quote by Roc8995
It affects power in tube amps, but differently. It's a less linear relationship. With a 2:1 mismatch on a tube amp you lose (officially) 10.5% efficiency. So instead of a SS amp where it's rated for 200 watts at 4 ohms and 100 at 8, with a tube amp you'd get 55 watts at 4 ohms and 49 point something at 8.

These are 'spherical cow' numbers so they'll be different in real life, but they're good enough for our purposes.


oh yeah, of course with mismatches you don't get the full power transfer (you know more than me about this, obviously), I was just assuming the impedances would be matched.
Quote by crownegamers
I saw in a couple of pictures that on Bucketheads Les Paul (only some pictures) that his neck pickup is painted in white. Can anyone explain to me why he would do this, and if there are any pros and cons.

Quote by dspellman
The guy wears a KFC Bucket and a white mask during performances, and you're interested in the color of his pickup covers?