Output & tone predictions with a speaker change in a TL606 cabinet

[Jim C]

I have a TL606 cabinet that currently has a Carvin 4 Ohm, 400
watt speaker that sounds good
http://www.carvinguitars.com/product...=PS15-4&cid=70

Have read that the 3015 is a great choice for this cabinet and believe that the overall tone with this driver should be an improvement; the 3105 is 8 Ohm

Mostly use a LMII which 500 watts at 4 Ohm; 300 watts at 8

I realize that Carvin does not publish specifications
Do you think the 3015 - 8 Ohm speaker will have the same approximate output volume as the existing speaker?
Any guesses as to what I may find with tonal changes?
TIA

[billfitzmaurice]

Originally Posted by Jim C

I realize that Carvin does not publish specifications

They do, but they will change the driver supplier and driver while keeping the same model designation, so you can't be sure of it.

Do you think the 3015 - 8 Ohm speaker will have the same approximate output volume as the existing speaker?

I doubt the Carvin even plays the same game, let alone be in the same ballpark.

[Jim C]

Thanks Bill
Any guestimate as to effeciency?
Am just concerened that the 4 ohm Carvin driver sounds OK and plays plenty loud; don't want to find out that the LMII doesn't have enough guts to drive this cab with a 3015

Am also assuming that this is your speaker of choice for this cabinet??

[billfitzmaurice]

Originally Posted by Jim C

Thanks Bill
Any guestimate as to effeciency?

I doubt very much a $69.95 driver is going to blow away a $169.95 driver. The opposite is a safe bet.

Am also assuming that this is your speaker of choice for this cabinet??

The TL606 was designed 30 years ago to work with the EVM15B. If you must use it I'd say the 3015 is as good a driver for it as any.

[Jim C]

Hadn't considered the dated cabinet design
Will check the Emminence site as it might make more sense just to build a new box if they have plans

[dubcut]

Eminence will give you the thiele-small parameters to their drivers, If you can't predict output or Q of the enclosure try using one of the several links from diyaudio or ajdesigner, etc.
Googe loudspeaker enclosure design software. Plug your nubes in and play.

Originally Posted by Jim C

Hadn't considered the dated cabinet design
Will check the Emminence site as it might make more sense just to build a new box if they have plans

[T-Bird]

Hi.

Originally Posted by dubcut

Eminence will give you the thiele-small parameters to their drivers.

Better yet, they give enclosure plans for quite a few of their drivers.


Like Bill said, there's a very slim chance that the cab will sound worse with the Eminence, but most probably it'll sound way, way better.

Just updating the driver is an economical and easy way to upgrade Your rig, you can make more suitable enclosure (or a two ) for the driver later, if you wish.

Regards
Sam

[Jim C]

Thanks guys; from what I can tell, the only thing Emminence gives away is the speaker specs but allows you to buy the software for YOU to build a box for THEIR speaker.

As opposed to EV who gave the specs away so that you could build the best box for their speaker.
I think I will buy a 3015 but can't understand the marketing wisdom for not offering a set of drawings to encourage folks to make their products sound best as possible. Wonder if Bob Gault Senior would have agreed with this if he were still alive.

[billfitzmaurice]

Originally Posted by Jim C

Thanks guys; from what I can tell, the only thing Emminence gives away is the speaker specs but allows you to buy the software for YOU to build a box for THEIR speaker.

As opposed to EV who gave the specs away so that you could build the best box for their speaker.
I think I will buy a 3015 but can't understand the marketing wisdom for not offering a set of drawings to encourage folks to make their products sound best as possible. Wonder if Bob Gault Senior would have agreed with this if he were still alive.

They do give all the information required to build a cab.
http://eminence.com/resources/cabinets.asp
They don't offer full sets of plans, but they're a driver manufacturer, not a speaker manufacturer. EV only offered plans for boxes that they sold. Eminence doesn't sell boxes.

[Jim C]

The info they offer; for example for a medium size box:
Box Properties
--Description--
Name:
Type: Vented Box
Shape: Prism, square
--Box Parameters--
Vb = 2.483 cu.ft
V(total) = 2.825 cu.ft
Fb = 49.42 Hz
QL = 7
F3 = 64.54 Hz
Fill = minimal
--Vents--
No. of Vents = 2
Vent shape = round
Vent ends = one flush
Dv = 4 in
Lv = 6.86 in

Doesn't seem to offer aspect ratio for length, width, or depth but just cubic ft (unless I'm missing something).
Is this box design all about cubic feet of space and port size without regards to aspect ratio or port location?

Also, didn't realize that EV offered all those cabs that they prints for; they had a large MI product line for that time.

[Blues Bass 2]

There are a few guys on Talkbass that have put 3015s in TL606 cabinets with very good results . The 3015 is a pretty forgiving speaker when retrofitting in mid to small cabinets and has a burpy Jaco type mid to it along with very good low end . I had a 3015 in a 2.8 cu.ft. Dr Bass cab and used it with my LMII and it got plenty loud for almost any gig I would do with my band and we aren't very quiet . I would imagine it would do fine for what you are doing too .

[SeismicAssault]

Jim C - I started a similar thread here KappaLite 3015 Med Vented Cabinet asking some of the same questions about the Eminence designed 3015 cabs. I think the best answers that I can figure out are that those cabs are giving you the basic dimensions, and it's up to the builder to construct it to the size / bracing he'd like.

I'm still thinking of building one (or two) of the medium vented cabs. I may even add a 6.5" midrange to one of them to give me a little more upper end.

[Chef]

I ran 3015's in a pair of mesa diesel 115's; which are 606-ish.
One was fine for me, with a walkabout head, for smallish gigs, and a not too loud band.

Those boxes don't have biiig deep bass response, and the 3015 just really isn't gonna change the way the box is tuned. They sounded great in the mix, to me. Enough low end, great mid presence, and about as much top end as one could expect from a 15 with no horn/tweet...

[will33]

It comes down to box size/tuning. The 3015 models in WinISD to be a pretty forgiving speaker when it comes to this stuff. It doesn't have the wild swings between weak lows and boomy humps when it comes to changing box sizes/tuning as some other speakers do. It'll also respond sufficiently deep in a smallish box, like the TL606 is to sound like a full bass guitar. It's excursion limits are also way beyond the EV so if you have to turn it up some to get what you want, it can handle it with no farts, distortion, etc. It's got enough of that to outperform the EV all day but not so much that it suffers in old school 15 uppermids/low treble if that's what you want either.