4 OHM LOAD WITH AN 8 OHM CABINET?

[hifibass]

I's there such a thing as a speaker cord or inline box that will allow an amp to "see" a 4 ohm load when using an 8 ohm cabinet. I have a fairly low power mini-amp that I would like to use to its full 4 ohm potential with a compact 8 ohm cabinet of a higher power rating. Ken

 

[Bass_Pounder]

Nope.................

And even if it did exist, the difference in output from 8 ohms to 4 ohms through the same speaker is almost inaudible.

 

[beans-on-toast]

Adding a second cabinet in parallel will increase the volume level and give you a 4 ohm load.

 

[RoadRanger]

It's called a transformer, here's one:
http://assets.peavey.com/\literature\manuals/00720310_3.pdf

 

[12bass]

It's called a transformer, here's one:
http://assets.peavey.com/\literature\manuals/00720310_3.pdf

$150! Hardly worth it, IMO....

Adding another cabinet is the better option by far.

 

[RoadRanger]

$150! Hardly worth it, IMO...

If you're wacky enough to buy one new - sure.

 

[buldog5151bass]

Best bet is an additional 8 ohm cab. That will give you 4 ohms, and an actual noticeable increase in volume.

 

[Old Garage-Bander]

I's there such a thing as a speaker cord or inline box that will allow an amp to "see" a 4 ohm load when using an 8 ohm cabinet. I have a fairly low power mini-amp that I would like to use to its full 4 ohm potential with a compact 8 ohm cabinet of a higher power rating. Ken

Cabinet with a higher power rating does not give you more power.
A 100 watt amp driving a 400 watt cab will not get you anymore power.
The amp's max power rating is all it can safely supply to any speakers.
To get more power you need to draw more current from the amp.
To get more current draw you need to load the amp more.
A 4 ohm load will draw more current than an 8 ohm load.

 

[Old Garage-Bander]

Silly rabbit, tricks are for kids.
Doing this with a transformer is a waste even if it were free.
Transformers are passive devices.
Passive devices cannot operate without introducing losses.

 

[Ewo]

I gotta be missing something here. Adding an 8 ohm dummy load in parallel would present a total 4 ohm load to the amp, yeah--but half the power would go to the dummy load. So the live cabinet would see the same power, even if the amp put out twice as much. Where's the gain in doing that?

 

[markmeloney]

I's there such a thing as a speaker cord or inline box that will allow an amp to "see" a 4 ohm load when using an 8 ohm cabinet. I have a fairly low power mini-amp that I would like to use to its full 4 ohm potential with a compact 8 ohm cabinet of a higher power rating. Ken

such a box exists. another cab LOL

 

[markmeloney]

It's called a transformer, here's one:
http://assets.peavey.com/\literature\manuals/00720310_3.pdf

wait what?..

 

[foolforthecity]

I gotta be missing something here. Adding an 8 ohm dummy load in parallel would present a total 4 ohm load to the amp, yeah--but half the power would go to the dummy load. So the live cabinet would see the same power, even if the amp put out twice as much. Where's the gain in doing that?

There is none. Just wasted energy in the form of heat.
Edit: And just make the amp drive harder for no reason whatsoever.

 

[Old Garage-Bander]

I gotta be missing something here. Adding an 8 ohm dummy load in parallel would present a total 4 ohm load to the amp, yeah--but half the power would go to the dummy load. So the live cabinet would see the same power, even if the amp put out twice as much. Where's the gain in doing that?

I don't think you missed a thing. 2:1 transformers, dummy loads. All passive devices that don't produce sound. Nothing to really be gained the way I see it? You have an amp that will make full power into 4 ohms, give it four ohms. Give it a lesser load, accept less power output.

 

[RoadRanger]

Oy Vey, the "experts" you find here

 

[Ellery]

You can make one with a flux capacitor

 

[HolmeBass]

Nope.................

And even if it did exist, the difference in output from 8 ohms to 4 ohms through the same speaker is almost inaudible.

Jeez, this tired meme again? +3 dB is *completely* audible. The JND is sensibly around 1 dB. This tired TB meme is getting almost as bad as the old underpowering myth.

 

[walterw]

Jeez, this tired meme again? +3 dB is *completely* audible.

sure, but either way what the OP is asking for isn't a thing, aside from crazy stuff like a weber Z-matcher that costs as much as a second cab and doesn't have the benefits.

the other option is of course putting in a 4Ω speaker, again the same kind of money and again not nearly as much improvement as the second 8Ω cab.

 

[Kukulkan61]

Get a Y adapter and connect the other lead to a roll of pennies that will get you there...

 

[noeinstein]

You can make one with a flux capacitor

You'll also need a Johnson Rod.