I already own a 15+10 cabinet. Is it more advantageous to pair it with a 4x10 or 1x18"?

There's no advantage to pairing it with anything other than another of the same cab. For that matter a well designed 115/110 shouldn't need any help.

 

There's an extremely important detail missing from your question. Can you guess what it is?

 

LOL, sorry if that came across as a little snarky, I apologize.

You're asking for help finding a new cab to pair with your existing cab... but you don't tell us what kind of cab you have?

 

This must be the poison Mushroo!

 

Your amp gives 200W into 8Ω and 350W into 4Ω. You will gain a little from either added cabinet but don’t expect it to be twice as loud. It doesn’t work that way.

 

sounds like you've gotten the 'impedance thing' down: any of the 8ohm cabs you suggested will give you more. how much more will depend on what you get, where you use it, yada yada.

if you have the dough and you feel lucky: try it. be sure to get back and let us know what you think! thanks. good luck!

 

If you assume an 18" is going to automatically give you more bass just because it's an 18, then that would be a false assumption.

Staying within the confines of your question, I'd ditch the idea of getting an 18. I would go with one of those 4x10's that always pop up at GC. It will be a lot easier to find another 4x10 on GC than another 18", when you decide it's better to have cabs that somewhat match. That is of course if you don't find another 1510.

 

An SVT-18E is a 4 ohm cabinet. You won't be able to run it with your SVT-1510 using your B2 head. If you like the sound of your 1510, I would look for another. They are not real common, but can be found at decent prices.

 

There are a lot of guys on here who will lambast you for using different speaker sizes at all, let alone in the same cab. Then adding to it? I’m surprised the floodgates haven’t opened lol.
It’s a preference thing imo. What you hear on stage and what the audience hears are both very different things that are affected by a lot of different factors. Cabinet choice can affect both.
Already having a 15” and 10” driver, you should be just fine as far as what your amp cab push. And Bassman Paul is dead on, you’re not going to get THAT much more out of whatever you add in. My ssuggestion, if you add anything at all, would be to find an 8 ohm 210 cab. Doesn’t add too much, but probably enough for you to utilize your amps’s Full power without as many added drivers or as much phasing/tonal issues.

 

You need this: Epifani 4by15 cabinet (the beast) late 90s Black

Just that cab, nothing else.
Don't fix the tweeter.

Play one of those little Ampeg 20 watt recording heads thru it for lolz.

 

There are a lot of people everywhere who deny that anything at all works because the thing doesn't comply with their prejudices. Like many of my era (60s - 70s) I spent my gigging life doing things all wrong. Wrong instruments and amps, mixed drivers, wrong stage setup, wrong tone. People came to see us, they drank and danced, requested their favorites, listened, went home happy and came back the next time we played. And that's how you do "all wrong" all right.

 

the fact that you didn't at least pick up on how most folks around here recommend a second identical cab as being the best match tells me that the FAQs are not as useful as we think.

that means a snarky "search the stickys!" probably shouldn't be the default suggestion to throw at people.

 

The best answer I can give you is to get the 4X10 cab.You may find yourself using that cab most of the time.
A good 4X10 is very load and clear, I add a 1X15 to my 4X10 FOR LOOKS and little dirt (some call it muddy sound)
With your 15 you can get old skool sound and with the 4X10 you can get almost any sound.

 

Imho, everyone needs an 8x8 cab.
So there's forums for ya - 10.000 different answers to one question.

Good luck!

 

Isn't it just a simple, closed question?

Anyway, my answer would be: 1x18.

 

So common sense is adding the same sort of speakers? Weird. I own an Ashdown C210-575 combo, (at 8ohm) and added an 8ohm 15inch speakercabinet and it gives me a LOT more power and "booom".... If I understand it right, it would be even better if I added a 2x10" cabinet..???

 

Depends on the kind of music your play .. the 18 will be muddy but you will feel it. I would add the 4x10 cab then you have a 15 for the lows and 5x10s for everything else. That should push some air.