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Topic: Eminence TT-12" speaker |
George Macdonald
From:
Vancouver Island BC Canada
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Posted 7 Dec 2016 2:08 pm |
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| Would there be a noticeable drop in volume putting an 8 Ohm speaker like the double T 12" speaker in the 4 Ohm Nashville 112? |
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Steve Spitz
From:
New Orleans, LA, USA
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Posted 7 Dec 2016 6:28 pm
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I put an 8 ohm JBL E in mine, it was still loud as heck, and it sounded fantastic.
obviously, it was much heavier. most 8 ohm speakers Ive hooked up to a meter read around six and change. |
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George Winter
From:
Florida, USA
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Posted 7 Dec 2016 7:44 pm I have one in mine
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| I have one in mine. I wired a 8 ohm resister in parallel with the speaker so the amp sees 4ohm. Works perfectly. |
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Don Mogle
From:
Round Rock, TX, USA
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Posted 7 Dec 2016 9:09 pm Tt-12
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Do a search under "Travis Toy" and you will find this very topic discussed in detail.
Don |
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Jay Ganz
From:
Out Behind The Barn
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Posted 7 Dec 2016 9:47 pm
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Yeah, an 8 ohm speaker reads about 6 ohm "resistance".
The 8 ohm rating is "impedance". You don't read impedance with a standard meter.
On another point... If you put an 8 ohm resistor in parallel with the speaker, part of the increased
amp wattage is being sent to that resistor...which you CAN'T HEAR. So, what's the point? |
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Lane Gray
From:
Topeka, KS
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Posted 8 Dec 2016 6:52 am
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Especially when it's equal in load to the speaker. Exactly half of the output gets converted to heat.
_________________
2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects |
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George Macdonald
From:
Vancouver Island BC Canada
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Posted 8 Dec 2016 8:50 am 8 ohm double T speaker
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| Thanks for the replys. It doesn't look like volume would be a problem putting the 8 ohm double T speaker in my Nash. 112. |
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John Macy
From:
Rockport TX/Denver CO
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Posted 9 Dec 2016 9:40 am
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Not to mention how great that speaker sounds!
_________________
John Macy
Rockport, TX
Engineer/Producer/Steel Guitar |
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Wally Moyers
From:
Lubbock, Texas
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Posted 12 Dec 2016 6:44 pm
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| You will loose 3 DBspl. going from 4 to 8 ohms. The amp will put of less power so you may notice less headroom before distortion.. |
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George Macdonald
From:
Vancouver Island BC Canada
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Posted 13 Dec 2016 11:07 am 8 ohm double T speaker
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| Placed an order yesterday for a Double T 12" speaker. I'll report how it works out for me in my Nash. 112 in a couple of weeks. I do have a Carvin BX500 head and 15" cabs if I need more horse power. ha |
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George Macdonald
From:
Vancouver Island BC Canada
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Posted 21 Dec 2016 1:27 pm Double T 12 speaker
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I installed the new Double T speaker in my Nashville 112 this morning, and I'm more than pleased with the result. I didn't dislike the original Blue Marvel, but the Double T is a big improvement. Lots of bottom end, huge, great sounding midrange, and the highs are sweet.
I weighed the Blue Marvel when I removed it, and it weighed 11 lbs. So, the amp is now 4 lbs lighter according to my math. I did have to remove the reverb pan to do the speaker swap, and the top and bottom nut aren't easy to get at. Other then that, no problems.
By the way, no apparent loss of volume with the 8 ohm speaker in the 4 ohm amp. If anything, the Double T is louder. |
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Steven Paris
From:
Los Angeles
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Posted 22 Dec 2016 4:49 pm
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I believe the Eminence TT speaker is 3 db more efficient than the Blue Marvel; hence the power loss due to higher impedance is offset, and the volume should be equal.
_________________
Emmons & Peavey |
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Tony Prior
From:
Charlotte NC
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Posted 23 Dec 2016 2:45 am
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in theory going to an 8 when spec'd for a 4 offers LESS output.
In practicality you will be hard pressed to hear or notice any difference. I have been running an 8 ohm EMMI in my N112 (4 ohm spec) for a very long time.
The only thing I noticed, which was the reason for the change, was the amp now has a totally different EQ curve, leaning bright with a very mild curve in the mids , the amp came to "brightness" life while that hard to tame or dial in MID RANGE LIFE has left the building.
And I too would not recommend placing a 4 ohm resistor in parallel with an 8 ohm speaker. Two totally different and unrelated sources of heat and current draw on the OT. The speaker releases energy the resistor absorbs it. The OT can handle the supposed mismatch which in the scheme of things is insignificant , 4 to 8 . Now if you go to 16 ohms from spec'd 4, thats probably not a good idea. Get another speaker ! 
_________________
Emmons L-II , Fender Telecasters, B-Benders , Eastman Mandolin ,
Pro Tools 12 on WIN 7 !
jobless- but not homeless- now retired 9 years
CURRENT MUSIC TRACKS AT > https://tprior2241.wixsite.com/website |
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Jay Ganz
From:
Out Behind The Barn
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Posted 23 Dec 2016 5:33 am
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The NV 112 has an OT ?  |
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Steven Paris
From:
Los Angeles
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Posted 25 Dec 2016 11:40 pm
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The Peavey 112 is a solid-state amplifier, and does NOT have an output transformer.
Putting an 8Ω resistor in parallel with an 8Ω speaker will NOT increase the power delivered to the speaker one bit.
_________________
Emmons & Peavey |
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Jay Ganz
From:
Out Behind The Barn
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Posted 26 Dec 2016 5:40 am
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| Steven Paris wrote: |
The Peavey 112 is a solid-state amplifier, and does NOT have an output transformer.
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Yeah I know...just my feeble attempt at sarcasm.  |
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