Author Topic: best 4x10 cab to match with Sunn 215s  (Read 2434 times)

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Hop

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best 4x10 cab to match with Sunn 215s
« on: August 30, 2004, 08:59:24 am »
I own a Sunn 215s cab from the early 70's.  It has 2 JBL K-140 speakers.  I am looking to add a 4x10 speaker cab for larger gigs to add some clarity, but would like a 4x10 that has good low end so I can use it for smaller gigs without the 2x15.  I have read up on Eden 410xlt and the Mesa Boogie 4x10 Powerhouse.  Any thoughts on these cabs or others that may fit my needs?  Also, since the 2x15 cab is 4 ohms must I get a 4 ohm 4x10 cab to match (thus running a 2 ohm load together) OR can you match a 4 ohm cab with a 8 ohm cab without causing amp damage?   I play mostly classic rock and alt/country and use a Sunn 300T all tube 300 watt amp.

Hop

Hop

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best 4x10 cab to match with Sunn 215s
« Reply #1 on: September 03, 2004, 12:17:21 pm »
Anyone?

Anonymous

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best 4x10 cab to match with Sunn 215s
« Reply #2 on: September 03, 2004, 04:54:52 pm »
does the 300T safely run a 2 ohm load?
and wouldn't the 4 ohm plus 8 ohm equal 6 ohm?

Offline loudthud

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best 4x10 cab to match with Sunn 215s
« Reply #3 on: September 03, 2004, 09:49:01 pm »
I use an old Traynor 4x10 with 16 ohm EV speakers along with three 2x15 cabs all wired for 16 ohms. That gives me a 4 ohm load that my modified 1200S (tube type) is happy with. For smaller gigs, I drop off one or two of the 2x15 cabs. For really small gigs, I go with a smaller amp and a MusicMan 115RH with an EV. I haven't tried any of the 4x10 cabs you mentioned, you're going to have to pack your rig down to a store and try them to see what works for you.

The 300T should be set for a 2 ohm load. The impedance of the 4x10 will determine (to some extent) the balance between the two cabs. If it's 4 ohms, it will draw the same amount of power as the 215S. If it's 8 ohms, it will only draw half as much as the 215S, but there is a lot more going on than the simple parallel resistance equasion suggests. When dissimilar cabinets are connected in parallel, the different resonant frequencies cause a complex interaction that may or may not sound good. You could end up with some notes being noticeably louder or softer than others or notes that "fart out". You're just going to have to try it.

A 4 ohm cabinet and an 8 ohm cabinet in parallel result in a 2.66 ohm load. Your amp will probably produce about 250 watts into that load when set to the 2 ohm tap. You might not even notice the drop in power and, it won't hurt the amp.

The equasion is: Rtotal = 1/((1/R1)+(1/R2)) or Rtotal = (R1*R2)/(R1+R2)

Anonymous

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best 4x10 cab to match with Sunn 215s
« Reply #4 on: September 05, 2004, 06:30:37 am »
thanks for all the info...I tried the Eden 4x10 yesterday and I must say, it seems everytime I give the 10's a try I always end up prefering my 2x15 cab.  Now I am thinking that a more powerful 2x15 cab may give the the added clean head room I need in larger rooms and outside gigs.  Going to try a Mesa Boogie 2x15 Diesel cab today (800 watts).