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Topic: extention speaker |
Mike Bowles
From:
Princeton, West Virginia, USA
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Posted 6 May 2012 8:46 am |
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can you use a 15 inch speaker hooked up to a nv 112 like a cab without damaging the 112 im gonna hook it to the speaker of the 112 and use it like an ext cab? thanks
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Mike Bowles |
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Chas. J. Wagner
From:
Denver, Colorado USA
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Posted 6 May 2012 9:29 am Re: extention speaker
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| Mike Bowles wrote: |
| can you use a 15 inch speaker hooked up to a nv 112 like a cab without damaging the 112 |
I'm no expert but I do own a NV112 and have contemplated an extension speaker...
To answer your question...yes you can but you would need to be concerned with the 15" speaker Ohms. The NV112 amp is looking for a 4 Ohm load. The 12" Blue Marvel speaker in the NV112 is 4 Ohm. If connecting the second speaker takes you lower than 4 Ohm it will hurt the amp. If you go higher than 4 Ohm it won't hurt the amp but you will not get the full 80 watts of power in the NV112.
If your 15" is 4 Ohm, you could connect it to the NV112 Blue Marvel in Series. That would give you 8 Ohms. You would loose some amp power, but it should not damage the NV112. If you were to connect a 4 Ohm 15" speaker with the 4 Ohm Blue Marvel in Parallel, that would give you 2 Ohms...not what you want to do.
Series connection...
Perhaps some of the more technically astute forum members would have some other suggestions for you. |
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Tommy Boswell
From:
Virginia, USA
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Posted 6 May 2012 9:50 am
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| I added an external speaker jack to my NV112. I used a switching jack that cuts the signal to the internal speaker, so I can only use one at a time. |
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Chas. J. Wagner
From:
Denver, Colorado USA
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Posted 6 May 2012 10:11 am
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| Tommy's suggestion is a good alternative to consider. Get a 4 Ohm 15" speaker and hook it up as he suggests. That way you get full power from the amp and have no load incompatibility concerns. |
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Lane Gray
From:
Topeka, KS
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Posted 6 May 2012 10:39 am
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And if volume is your goal, try to find a 15 with efficiency of greater than 100 dB.
A 102 is TWICE as loud as a 98.
_________________
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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Mike Bowles
From:
Princeton, West Virginia, USA
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Posted 6 May 2012 11:18 am speaker
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thanks guys i will try this i really dont need the extra volume i guess im looking for something to do with my nv 1000 i dont like the sound of it maybe i just need to put it in the closet. thanks again
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Mike Bowles |
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Richard Sinkler
From:
aka: Rusty Strings -- Missoula, Montana
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Posted 6 May 2012 12:29 pm
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Does the NV1000 have a power amp in jack and does the NV112 have a preamp out jack? If so, just run the preamp out on the 112 to the power amp in on the 1000 and you have a powered speaker with the tone settings of your 112. You have both speakers working and can probably dial in quite a nice sound.
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Carter D10 8p/8k, Dekley S10 3p/4k C6 setup,Regal RD40 Dobro, Recording King Professional Dobro, NV400, NV112,Ibanez Gio guitar, Epiphone SG Special (open D slide guitar) . Playing for 55 years and still counting. |
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Ken Fox
From:
Nashville GA USA
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Posted 6 May 2012 5:17 pm
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From the internet:
Poll: Is 3 dB, 6 dB or 10 dB SPL double the sound pressure?
This is not a trick question. This is not about the subjective perceived loudness of hearing and not how to add sound sources. SPL is the abbreviation for "Sound Pressure Level". The term loudspeaker and amplification is not specifically raised with the previous survey. It's all about sound pressure.
There is only one correct answer: Twice the sound pressure is a SPL of +6 dB.
It's often necessary to estimate how much a sound level changes. Our ears interpret a wide range of sound amplitudes, volume or loudness as change in level and change in loudness. The decibel is a very convenient unit for measuring signal levels in electronic circuits or sound pressure levels in air. However, changes in the loudness of sounds as perceived by our ears do not conform exactly to the corresponding changes in sound pressure level. Loudness is the quality of a sound that is the primary psychological correlation of physical strength (amplitude). Loudness, a subjective feeling, is often confused with objective measures of sound pressure level SPL such as decibels.
Definitions:
Sound level or noise level − a physical quantity measured with measuring instruments.
Loudness − a psycho-physical sensation perceived by the human auditory perception or the human ear/brain mechanism.
We are told us by psycho-acousticians that a level 10 dB greater usually means "double the loudness" or "twice as loud".
Decibel − one-tenth of a bel, which is the logarithm of the ratio of any two energy-like quantities or field-like quantities.
Ratio doubling means:
A sound pressure level +6 dB SPL,
a power level of +3 dB,
an electric voltage level of +6 dB,
a loudness level +10 dB,
10 dB more SPL means 10 times increase in amplifier gain (amplification).
In the newsgroups these often misunderstood statements are explained rather less accurately. Decibels means also to take dBSPL or dBA, while a level change is always in dB. The perceived loudness of the sound depends on several factors: the amplitude, the sound pressure level, the frequency, and the time behaviour of the sound. A typical question on the internet: "Is 3 dB or 6 dB the double loudness?"
Answer: "It is neither 3 dB, nor 6 dB - it is closer to 10 dB. |
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Mike Bowles
From:
Princeton, West Virginia, USA
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Posted 7 May 2012 6:10 pm speakers
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thanks guys for the help i hooked it up like richard said had lots of power i had to turn the master gain up on the 1000 im still experimenting with the tone it sounded pretty good to me. thanks again.
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Mike Bowles |
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