#1
Everyone always looks to special cabinets, attenuators, or voltage regulation circuits as a method of getting cranked tone at a reasonable volume level.
But what about speakers?
A sensitivity rating tells you how effectively a speaker converts power (watts) into volume (decibels). The higher the rating, the louder your speakers will play with a given amount of amplifier power. Sensitivity is often measured by driving a speaker with one watt and measuring the loudness in decibels at one meter.

The chart below illustrates that a few dB in sensitivity can make a big difference:

Speaker 	Sensitivity rating      	Power needed to produce a given volume
Speaker A 	85 dB 	                        100 watts
Speaker B 	88 dB 	                        50 watts
Speaker C 	91 dB 	                        25 watts


Has anyone tried getting purposely inefficient speakers? Does anyone make guitar speakers with a low efficiency?

Then there's the new FDM (Flux Density Modulation) technology, which allows you to turn down a speaker's volume.

Here are two of the more affordable models:
http://www.americanmusical.com/Item--i-EMI-RM-LIST?SRC=D0407FG0HAMS0000&utm_source=froogle&utm_medium=feed&
http://www.americanmusical.com/Item--i-EMI-MAV-LIST?SRC=D0407FG0HAMS0000&utm_source=froogle&utm_medium=feed&
Seem pretty neat. Of course, for more convenient on the fly control, an open back cab would be ideal...
Anyone wanna try them?
#3
Eminence speakers are on the whole stupid efficient. Celestion speakers are mostly stupid inefficient. I don't know of an 85db efficiency speaker though.
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#4
Interesting idea, but it looks like you only get 9db of attenuation total? Think my attenuator does like 70 max.

in before attenuator hate.
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#5
Quote by Matt15f
Interesting idea, but it looks like you only get 9db of attenuation total? Think my attenuator does like 70 max.

in before attenuator hate.


The thing with this is that it can still get the speakers moving unlike an attenuator turned real far down. That contributes more to cranked tone than power tube distortion, IMO.
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#6
Quote by mmolteratx
The thing with this is that it can still get the speakers moving unlike an attenuator turned real far down. That contributes more to cranked tone than power tube distortion, IMO.
Exactly, you're still driving the speakers hard. Interesting idea.
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#7
Quote by mmolteratx
The thing with this is that it can still get the speakers moving unlike an attenuator turned real far down. That contributes more to cranked tone than power tube distortion, IMO.

Seems like a cool idea then. Would be nice in a quarter open back cab where you wouldn't have to take the back off to change the setting.
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#9
Yo Min. Buy some so we can try this out for realz. I'm curious now.
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#10
no. scumbacks rule.
Jumping on dat gear sig train.
PRS Hollowbody II / BKP Warpigs
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#11
It's a pity the speakers Eminence chooses to use with that FDM tech are (IMO) not very good.

It'd be great to have access to Scumbacks or something without paying the $800 per cab fee on top of speakers (I forget the manufacturer that does this).
Everyone is entitled to an opinion.

Feel free to express yours so I can make an informed judgement about how stupid you are.
#12
i don't think eminence has the ability to put that on other speakers. I know that there's a manufacturer that has similar tech that can be added on. Good thing I like preamp distortion and not icky icky power tube distortion.
Jumping on dat gear sig train.
PRS Hollowbody II / BKP Warpigs
Strandberg OS6T / BKP Aftermath
Strandberg OS7 / Lace Poopsticks
Skervesen Raptor 7FF / BKP Warpigs
Skervesen Raptor 6 NTB / BKP Juggernauts
Hapas Sludge 7 FF / Hapas Leviathan
Anderson Baritom / Motorcity Nuke BKP Sinner Anderson H2+
Warmoth Baritone / BKP Piledriver
Ibanez Rg2120x / BKP Nailbomb

Blackstar ID:Core Beam
#13
^ I know there's somebody that does it too, but I can't remember what they're called.

Something similar to the FDM name and they've been doing it quite a bit longer than Eminence, but it's hugely pricey.
Everyone is entitled to an opinion.

Feel free to express yours so I can make an informed judgement about how stupid you are.
#14
fluxtone
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#15
^ There it is.

It's stupidly expensive to outfit a 4x12 with those though.
Everyone is entitled to an opinion.

Feel free to express yours so I can make an informed judgement about how stupid you are.
#16
it's stupid expensive for just 1 speaker.
Jumping on dat gear sig train.
PRS Hollowbody II / BKP Warpigs
Strandberg OS6T / BKP Aftermath
Strandberg OS7 / Lace Poopsticks
Skervesen Raptor 7FF / BKP Warpigs
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Hapas Sludge 7 FF / Hapas Leviathan
Anderson Baritom / Motorcity Nuke BKP Sinner Anderson H2+
Warmoth Baritone / BKP Piledriver
Ibanez Rg2120x / BKP Nailbomb

Blackstar ID:Core Beam
#17
^ well, yes, but a 4x12 is four times as stupid expensive.

I might be persuaded to do a 1x12 with a Fluxtone speaker, but never a 2x12 or 4x12, not when a good attenuator is only marginally more than the cost of one speaker.
Everyone is entitled to an opinion.

Feel free to express yours so I can make an informed judgement about how stupid you are.
#18
i sometimes try to lose lower efficiency speakers to keep the volume down. It seems to make a fairly big difference. I mean it's still loud, but it's noticeably less loud.
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#20
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Yea I did, but not to get an 800, I got something else on the way, it says made in Germany on the back or something
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#21
^ Nope, but if it's not a Jensen, Alnico Blue, Greenback or G12H30 copy, there's really no reason to have attenuation on it, is there?

Metalheads certainly aren't going to need it as they already have MV amps and use preamp distortion.
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Feel free to express yours so I can make an informed judgement about how stupid you are.