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Author Topic: 4 ohm load into a 16 ohm speaker  (Read 3493 times)

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Dante

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4 ohm load into a 16 ohm speaker
« on: Time Format »

Hi Guys,

I have recently acquired a small 1x12 combo Marshall and I'm considering swapping out the (4 ohm) G12m-70 Celestion for a V-type I found on Craigslist. The one thing I wonder about is, the speaker i'm looking at is a 16 ohm, intended to be used in a 2x12 to achieve an 8 ohm load. (I'm assuming the amp pushes a 4 ohm load because of the stock speaker) I know my amp will be fine going into a 16 ohm load with the 4 ohm load it sends, but my question is, will the 16 ohm speaker be less articulate?

I have plugged into 8 ohm cabs with a 4 ohm amp before and the amp seems to really get them to come alive, I'm wondering if that will happen with this combo and a 16 ohm speaker, or if it'll have the opposite effect?

Dante
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MarshallJMP

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Re: 4 ohm load into a 16 ohm speaker
« Reply #1 on: Time Format »

I don't think sound wise it will change anything but you will loose a lot of output power. You will have 25% of the original power.
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Kim

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Re: 4 ohm load into a 16 ohm speaker
« Reply #2 on: Time Format »

You definitely don't want to go the other way though...putting a 4 ohm speaker on an 8 or 16 ohm amp would be ugly.
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Dante

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Re: 4 ohm load into a 16 ohm speaker
« Reply #3 on: Time Format »

I don't think sound wise it will change anything but you will loose a lot of output power. You will have 25% of the original power.
That is not good...although it's loud, it's only 30w. Hmpf

You definitely don't want to go the other way though...putting a 4 ohm speaker on an 8 or 16 ohm amp would be ugly.
I know that part, never try to force a firehose into a garden hose.  :thumb-up:
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GuitarBuilder

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Re: 4 ohm load into a 16 ohm speaker
« Reply #4 on: Time Format »

Which amp are you thinking of using?
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Dante

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Re: 4 ohm load into a 16 ohm speaker
« Reply #5 on: Time Format »

Which amp are you thinking of using?
The one mentioned here: NAD!! Marshall 5010 Master Lead Combo

Since the stock speaker is a 4 ohm, I have to assume the amp puts out 4 ohms, but I haven't confirmed that.  I did find a schematic: HERE


If only I could read such things ;) haha
« Last Edit: Time Format by Dante »
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MarshallJMP

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Re: 4 ohm load into a 16 ohm speaker
« Reply #6 on: Time Format »

Well next to the speaker symbol it says 12" 4 ohm  :lol:
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Dante

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Re: 4 ohm load into a 16 ohm speaker
« Reply #7 on: Time Format »

LOL! I saw that, and just next to that it says 100 ohm! AH!

I found a pic online of the back panel, it says "this apparatus must be earthed" I think my apparatus must be earthed  >:D

It also says: 30 Watt RMS / 4 ohm

and...Risk Of Shock, Do Not Open
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tomy

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Re: 4 ohm load into a 16 ohm speaker
« Reply #8 on: Time Format »

Well... Risk of shock ; I'm sure that you DID open   >:D
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Kim

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Re: 4 ohm load into a 16 ohm speaker
« Reply #9 on: Time Format »

I think the Celestion V Type is my new favorite guitar speaker(s).   Hope you like it as much as I do! 
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RIG OF FIRE:  ADA MP-2, Rocktron Xpression, Peavey Classic 60/60, Gator GPB-BAK-1 pedalboard, Rolls MidiBuddy, Morley Tremonti wah.
Mellotron/organ section:  EHX Mel9, EHX C9, Saturnworks A/B switch, Vox V860 volume, Crate Powerblock.
Pair of 4x12 cabs:  each custom wired for both 2x12 guitar and 2x12 Mel9. UPDATED DIAGRAMS
HOME/STUDIO/COMBOS/STUFF:  Peavey JSX halfstack, Crate G60XL, Saturnworks Saturn Fuzz,  EHX Soul Food, ProCo Rat, Saturnworks buffered splitter, Peavey PV6, Korg DTR-1000, Pigtronix Quantum Time Modulator.
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rnolan

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Re: 4 ohm load into a 16 ohm speaker
« Reply #10 on: Time Format »

Hey Dante, as MJMP says you'll get around 25% of the power into 16 ohms.  However, 16 ohm speakers are typically  more sensitive, responsive and efficient than the lower impedance varieties which will off set this a bit.
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Dante

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Re: 4 ohm load into a 16 ohm speaker
« Reply #11 on: Time Format »

Kim: I've read really great things about them. I may pull the trigger on a new 8 ohm version (they only come in 8 and 16)

Richard: Since I'd be cutting my ohm load in half, I guess I'd get a bit of that sensitivity with the 8 ohm as well (?)

As loud as this little combo is, I think it'd be okay for mic'ing, even at half power. I'm not totally against the sound I'm getting, I haven't had enough time to really play around with it. But, I do have a bias for the speaker that's in it, I'm not a fan.
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