J210 driver selection

The Jack of All Trades pro-sound cabs.
Post Reply
Message
Author
User avatar
Clef's of Bass
Posts: 26
Joined: Sat Dec 26, 2020 4:21 pm

J210 driver selection

#1 Post by Clef's of Bass » Wed Jun 01, 2022 5:25 pm

Would a pair of BP102 4 ohm's be a good choice?

User avatar
Seth
Posts: 2068
Joined: Thu Sep 10, 2009 8:06 pm
Location: Sacramento, California, USA
Contact:

Re: J210 driver selection

#2 Post by Seth » Wed Jun 01, 2022 9:33 pm

The drivers mentioned in the plans are the Beta 10, S2010, and 2510. The plans also state a rising response into the midrange is required.

The BP102-4's Fs is slightly low, Vas is slightly high, and comparing the response charts, I'm not convinced the BP102-4 is a good choice.
Beta 10A.png
S2010.png
2510.png
BP102 4.png
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

User avatar
Seth
Posts: 2068
Joined: Thu Sep 10, 2009 8:06 pm
Location: Sacramento, California, USA
Contact:

Re: J210 driver selection

#3 Post by Seth » Wed Jun 01, 2022 9:42 pm

Here's the standard 8Ω BP102 too. Also not looking like a good choice for a Jack.
BP102.png

ETA: Bill, if I'm off base, please correct me.
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

Grant Bunter
Posts: 6645
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: J210 driver selection

#4 Post by Grant Bunter » Thu Jun 02, 2022 2:10 am

Clef's of Bass wrote:
Wed Jun 01, 2022 5:25 pm
Would a pair of BP102 4 ohm's be a good choice?
Are you asking with a view to building a less bulky than the J15 bass cab?

If the answer is yes, it has been built before with BP's for that purpose and works quite well according to the builder.

Do you particularly want an 8 ohm load? I take it you're looking at the 4 ohm version to series wire for 8 ohms, but again, if it's for a bass cab, then 2 x 8ohms drivers in parallel would be a 4 ohm load.
I'm not an advocate of flogging amps by running them at their minimum load when one doesn't have to, but it's an option.

Finally, the 210 is cumbersome itself. Is there some particular reason 2 x 1 x 10's wouldn't also work? That would cost you 1 extra top and 1 extra bottom in ply...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

User avatar
Clef's of Bass
Posts: 26
Joined: Sat Dec 26, 2020 4:21 pm

Re: J210 driver selection

#5 Post by Clef's of Bass » Thu Jun 02, 2022 3:46 am

Seth wrote:
Wed Jun 01, 2022 9:42 pm
Here's the standard 8Ω BP102 too. Also not looking like a good choice for a Jack.
BP102.png


ETA: Bill, if I'm off base, please correct me.
Thanks for the input Seth, I already have the BP's and was looking to save $$$. Looks like the best price point/ performance would be the delta 2510's.

User avatar
Clef's of Bass
Posts: 26
Joined: Sat Dec 26, 2020 4:21 pm

Re: J210 driver selection

#6 Post by Clef's of Bass » Thu Jun 02, 2022 4:02 am

Grant Bunter wrote:
Thu Jun 02, 2022 2:10 am
Clef's of Bass wrote:
Wed Jun 01, 2022 5:25 pm
Would a pair of BP102 4 ohm's be a good choice?
Are you asking with a view to building a less bulky than the J15 bass cab?

If the answer is yes, it has been built before with BP's for that purpose and works quite well according to the builder.

Do you particularly want an 8 ohm load? I take it you're looking at the 4 ohm version to series wire for 8 ohms, but again, if it's for a bass cab, then 2 x 8ohms drivers in parallel would be a 4 ohm load.
I'm not an advocate of flogging amps by running them at their minimum load when one doesn't have to, but it's an option.

Finally, the 210 is cumbersome itself. Is there some particular reason 2 x 1 x 10's wouldn't also work? That would cost you 1 extra top and 1 extra bottom in ply...
I might be asking for too much of a solution here. I wanted an 8 ohm J210 for a less bulky more easier to transport cab. And potentially pair it with the J15 for a two cab solution.

But the more I'm researching it's looking like I'm going to have to build both the J210 and additional J15.

For loud jamming use the 2 J15's, and for quieter jams the J210.

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28018
Joined: Tue May 02, 2006 5:59 pm

Re: J210 driver selection

#7 Post by Bill Fitzmaurice » Thu Jun 02, 2022 6:37 am

Clef's of Bass wrote:
Thu Jun 02, 2022 4:02 am
And potentially pair it with the J15 for a two cab solution.
Never mix cabs. :cop:
For loud jamming use the 2 J15
I've used my J15 exactly once, that being an outdoor gig where I had no boundary reinforcement. Indoors I've never found a need for it, my J12 is plenty. If a J15 isn't enough you don't need a second J15, you need to be in the PA.

User avatar
Clef's of Bass
Posts: 26
Joined: Sat Dec 26, 2020 4:21 pm

Re: J210 driver selection

#8 Post by Clef's of Bass » Sun Jun 26, 2022 5:01 pm

As always, thanks for the input Bill!


I went with the Deltalites II 2510's. Just so impressed with the 15" delta's performance in the J15, figured the 10's should be good too.

I'm on the fence on building a J210 or J210 lite?

Grant Bunter
Posts: 6645
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: J210 driver selection

#9 Post by Grant Bunter » Sun Jun 26, 2022 5:05 pm

Clef's of Bass wrote:
Sun Jun 26, 2022 5:01 pm
As always, thanks for the input Bill!


I went with the Deltalites II 2510's. Just so impressed with the 15" delta's performance in the J15, figured the 10's should be good too.

I'm on the fence on building a J210 or J210 lite?
How much cab is enough?
Do you reckon you'll rehearse or ever do gigs where a single J10 would have been sufficient?
If you answer yes to that, build 2 x 1 x J10 rather than 2 x 10.
Since you've gone with the 2510, build the lite cabs...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

User avatar
Clef's of Bass
Posts: 26
Joined: Sat Dec 26, 2020 4:21 pm

Re: J210 driver selection

#10 Post by Clef's of Bass » Sun Jun 26, 2022 5:10 pm

Grant Bunter wrote:
Sun Jun 26, 2022 5:05 pm
Clef's of Bass wrote:
Sun Jun 26, 2022 5:01 pm
As always, thanks for the input Bill!


I went with the Deltalites II 2510's. Just so impressed with the 15" delta's performance in the J15, figured the 10's should be good too.

I'm on the fence on building a J210 or J210 lite?
How much cab is enough?
Do you reckon you'll rehearse or ever do gigs where a single J10 would have been sufficient?
If you answer yes to that, build 2 x 1 x J10 rather than 2 x 10.
Since you've gone with the 2510, build the lite cabs...
Weight really isn't an issue, does the lite sound better or get louder?

The lite does look like a funner build though.

Grant Bunter
Posts: 6645
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: J210 driver selection

#11 Post by Grant Bunter » Sun Jun 26, 2022 5:19 pm

Clef's of Bass wrote:
Sun Jun 26, 2022 5:10 pm
does the lite sound better or get louder?

The lite does look like a funner build though.
The lite is, well, not as heavy. That's it. No Louder, sounds the same.
And yes, more fun to build...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

Post Reply