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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 2:39 pm
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Why Why Why ???
Get matched ohms & wattage.

Personally, I will have 2x12 cabinets built with P12N and C12N Jensens.
But, the handshaking for wattage and ohms is so important and even
more so imporant for tube amps cause you can trash your output transformer.

Are you just trying to save a buck?
Why build or by a nice 2x12 and put weird stuff in it that all your buddies will laugh at.
Like buying a Cadillac with a VW engine = :lol: :lol: :lol: [/b][/color][/quote]

Yes, sort of. I have the Cannabis Rex 8 Ohm 50 Watt and was thinking of a Celestion Greenback which is 30 Watt 8 Ohm. May be a strange combo, but since I have the new Eminence, which is a good speaker, I don't want to just dump it. Besides it might sound nice with the Greenback. Was thinking of wiring in a switch so I could have A/B and AB.
Still trying to get if the different wattages will cause a sound difference or something else... Yes I do understand that them both being the same is the normal correct situation.
Glenn


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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 2:43 pm
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glennc717 wrote:
Why Why Why ???
Get matched ohms & wattage.
Personally, I will have 2x12 cabinets built with P12N and C12N Jensens.
But, the handshaking for wattage and ohms is so important and even
more so imporant for tube amps cause you can trash your output transformer.

Are you just trying to save a buck?
Why build or by a nice 2x12 and put weird stuff in it that all your buddies will laugh at.
Like buying a Cadillac with a VW engine = :lol: :lol: :lol: [/b][/color]


Yes, sort of. I have the Cannabis Rex 8 Ohm 50 Watt and was thinking of a Celestion Greenback which is 30 Watt 8 Ohm. May be a strange combo, but since I have the new Eminence, which is a good speaker, I don't want to just dump it. Besides it might sound nice with the Greenback. Was thinking of wiring in a switch so I could have A/B and AB.
Still trying to get if the different wattages will cause a sound difference or something else... Yes I do understand that them both being the same is the normal correct situation.
Glenn[/quote]

Have you ever used the "quote" control when responding?
Try it. You'll like it! Chicks DIG Big Time Quote Users
:lol: :lol: :lol: :lol:

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 2:44 pm
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toppscore wrote:
Why Why Why ???
Get matched ohms & wattage.

Personally, I will have 2x12 cabinets built with P12N and C12N Jensens.
But, the handshaking for wattage and ohms is so important and even
more so imporant for tube amps cause you can trash your output transformer.

Are you just trying to save a buck?
Why build or by a nice 2x12 and put weird stuff in it that all your buddies will laugh at.
Like buying a Cadillac with a VW engine = :lol: :lol: :lol: [/b][/color]

Yes. Go do it. Mix'em up.
No biggie. Probably will sound fantastic, cost you less,
will create new sounds/tones, will make you grow big & tall.
Give us a YouTube demo. Include the AB AA BA BB switching.


Like this

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Last edited by Toppscore on Wed Sep 05, 2012 4:07 pm, edited 1 time in total.

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 2:45 pm
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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 3:16 pm
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Toppscore wrote:
glennc717 wrote:
Why Why Why ???
Get matched ohms & wattage.
Personally, I will have 2x12 cabinets built with P12N and C12N Jensens.
But, the handshaking for wattage and ohms is so important and even
more so imporant for tube amps cause you can trash your output transformer.

Are you just trying to save a buck?
Why build or by a nice 2x12 and put weird stuff in it that all your buddies will laugh at.
Like buying a Cadillac with a VW engine = :lol: :lol: :lol: [/b][/color]


Yes, sort of. I have the Cannabis Rex 8 Ohm 50 Watt and was thinking of a Celestion Greenback which is 30 Watt 8 Ohm. May be a strange combo, but since I have the new Eminence, which is a good speaker, I don't want to just dump it. Besides it might sound nice with the Greenback. Was thinking of wiring in a switch so I could have A/B and AB.
Still trying to get if the different wattages will cause a sound difference or something else... Yes I do understand that them both being the same is the normal correct situation.
Glenn


Have you ever used the "quote" control when responding?
Try it. You'll like it! Chicks DIG Big Time Quote Users
:lol: :lol: :lol: :lol:
[/quote]

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 4:08 pm
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Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
toppscore wrote:
Why Why Why ???
Get matched ohms & wattage.

Personally, I will have 2x12 cabinets built with P12N and C12N Jensens.
But, the handshaking for wattage and ohms is so important and even
more so imporant for tube amps cause you can trash your output transformer.

Are you just trying to save a buck?
Why build or by a nice 2x12 and put weird stuff in it that all your buddies will laugh at.
Like buying a Cadillac with a VW engine = :lol: :lol: :lol: [/b][/color]

Yes. Go do it. Mix'em up.
No biggie. Probably will sound fantastic, cost you less,
will create new sounds/tones, will make you grow big & tall.
Give us a YouTube demo. Include the AB AA BA BB switching.


Like this

Just click on the "quote" link and then go the bottom of the page and start writing.

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 4:18 pm
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Joined: Mon May 07, 2012 7:25 am
Posts: 56
Toppscore wrote:
toppscore wrote:
Why Why Why ???
Get matched ohms & wattage.

Personally, I will have 2x12 cabinets built with P12N and C12N Jensens.
But, the handshaking for wattage and ohms is so important and even
more so imporant for tube amps cause you can trash your output transformer.

Are you just trying to save a buck?
Why build or by a nice 2x12 and put weird stuff in it that all your buddies will laugh at.
Like buying a Cadillac with a VW engine = :lol: :lol: :lol: [/b][/color]

Yes. Go do it. Mix'em up.
No biggie. Probably will sound fantastic, cost you less,
will create new sounds/tones, will make you grow big & tall.
Give us a YouTube demo. Include the AB AA BA BB switching.


Like this

Just click on the "quote" link and then go the bottom of the page and start writing.


Like this :-) :-) :-) ;-)
Kewl
Glenn


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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 4:37 pm
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Joined: Sun Nov 20, 2011 3:16 am
Posts: 2337
glennc717 wrote:
Toppscore wrote:
toppscore wrote:
Why Why Why ???
Get matched ohms & wattage.

Personally, I will have 2x12 cabinets built with P12N and C12N Jensens.
But, the handshaking for wattage and ohms is so important and even
more so imporant for tube amps cause you can trash your output transformer.

Are you just trying to save a buck?
Why build or by a nice 2x12 and put weird stuff in it that all your buddies will laugh at.
Like buying a Cadillac with a VW engine = :lol: :lol: :lol: [/b][/color]

Yes. Go do it. Mix'em up.
No biggie. Probably will sound fantastic, cost you less,
will create new sounds/tones, will make you grow big & tall.
Give us a YouTube demo. Include the AB AA BA BB switching.


Like this

Just click on the "quote" link and then go the bottom of the page and start writing.


Like this :-) :-) :-) ;-)
Kewl
Glenn



Finally. You are growing and maturing!!!
You get to go to 1st Grade :lol:

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 5:31 pm
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Joined: Mon May 07, 2012 7:25 am
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Like this :-) :-) :-) ;-)
Kewl
Glenn[/quote]


Finally. You are growing and maturing!!!
You get to go to 1st Grade :lol:
[/quote]

Kewl!


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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 5:53 pm
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glennc717 wrote:
Like this :-) :-) :-) ;-)
Kewl
Glenn



Finally. You are growing and maturing!!!
You get to go to 1st Grade :lol:
[/quote]

Kewl![/quote]
Koul

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 6:14 pm
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glennc717 wrote:
...So your saying there would be no consequence in using the mix matched wattage speakers....


What do you mean "mix matched"?

When using multiple speakers (each is same impedance), the power from the amp will divide roughly evenly between the speakers. Two speakers, each gets half of the power from the amp. Three speakers, each gets a third of the amp power. Etc.

If you use two speakers with a 100 watt amp, one 30 watt speaker and one 50 watt speaker, each speaker will get roughly 50 watts at the amp's full power. As you can guess, the 30 watt speaker can be overloaded in this scenario.

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 7:02 pm
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shimmilou wrote:
glennc717 wrote:
...So your saying there would be no consequence in using the mix matched wattage speakers....


What do you mean "mix matched"?

When using multiple speakers (each is same impedance), the power from the amp will divide roughly evenly between the speakers. Two speakers, each gets half of the power from the amp. Three speakers, each gets a third of the amp power. Etc.

If you use two speakers with a 100 watt amp, one 30 watt speaker and one 50 watt speaker, each speaker will get roughly 50 watts at the amp's full power. As you can guess, the 30 watt speaker can be overloaded in this scenario.


Hello shimmilou,
Thanks for the response!! I meant in using the term mix matched to be using speakers of different wattage ratings. I was getting some impressions of this phenomena in other readings. By overloaded I am assuming you mean that it will be driven harder than the other speaker. Since the test scenario is a 15 watt Amp, what do you expect the actual outcome to be with a 30W Greenback and a 50W Eminence. Can you be more specific for the speaker impaired?? Thanks for your assistance.
Glenn


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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Wed Sep 05, 2012 7:26 pm
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Overloaded means that if a 30 watt speaker is getting 50 watts of power, the speaker's max wattage rating will be exceeded, and that speaker can blow.

If using two speakers, that are each 8 ohms impedance on a 15 watt BJr, each speaker will get roughly 7.5 watts of power. Obviously, both speakers are rated to handle more than 7.5 watts each, so this is good.

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Thu Sep 06, 2012 1:17 am
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shimmilou wrote:
When using multiple speakers (each is same impedance), the power from the amp will divide roughly evenly between the speakers. Two speakers, each gets half of the power from the amp. Three speakers, each gets a third of the amp power. Etc.

If you use two speakers with a 100 watt amp, one 30 watt speaker and one 50 watt speaker, each speaker will get roughly 50 watts at the amp's full power. As you can guess, the 30 watt speaker can be overloaded in this scenario.



Question of least resistance:
If a 100w amp sees a 30w speaker and a 50w speaker in a 2x12 setup
or
If a 4-ohm amp sees an 8-ohm speaker and a 16-ohm speaker in a 2x12 setup

Would not the weaker speaker get more load and the stronger speaker resist
more than the weaker speaker forcing more load towards the weaker speaker?


Hopefully, my question is understandable.


Another way to put it:

If the amp's output has two equal choices, energy flows equally. Right?

But if an amp's output has a weak resistance option and a high resistance option,
do you believe the amp pushes energy equally or would the amp's energy go
towards the direction of least resistance?


What do you or anyone think? or know? or have experienced?
Toppscore :

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Post subject: Re: 212 Cabinet for the Fender Blues Junior
Posted: Thu Sep 06, 2012 2:07 am
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shimmilou wrote:
Overloaded means that if a 30 watt speaker is getting 50 watts of power, the speaker's max wattage rating will be exceeded, and that speaker can blow.

If using two speakers, that are each 8 ohms impedance on a 15 watt BJr, each speaker will get roughly 7.5 watts of power. Obviously, both speakers are rated to handle more than 7.5 watts each, so this is good.


Thanks shimmilou,
So for the scenario of the 15 Watt Blue Jr. there is no danger, is there a sound quality difference between the speakers as described, in your opinion? I mean hypothetically if you had a 30 Watt Greenback and a 50 Watt Greenback in the 212 for the Fender Blues Jr would there be any difference at all?? Theoretically with an underpowered amp is there no reason to match impedance's?
Cheers
Glenn


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