Avatar tsunami stu on a jp23v1.5

[ehall8702]

Finally replacing my beat up AB XR, lower spider came apart from VC like 2 weeks after buying them, ebay refunded me for both and told me to "dispose" of the 2nd one, so i cut lower spider out and let her eat. Can def tell ypu the XR spunds ALOT deeper without the lower spider. She gets stinky after a couple good songs tho. Thats at 1 ohm on the jp23( rated 2300 rms @1)  now im eyeing another sub, reading great things about the STU , with 3k rms and dual 1 ohm, im sure the jp @.5 will come near the subs rated. Have a 2.25 cube, 32hz tuned slot port with quite a bit of port area ( was built for a death penalty r6 12 ) uses triticums port calculator but cant remember how much port area tho, been over a year ago i built it.

Anyone vouch fornthe STU? At $300 brand new cant beat it spec for spec of anything else i can find, just always felt better with a pole vent but watched some torture testing if these and the apocalypse stuff and kinda impressed me.

[Joe X]

That 38 mm Xmax it says it has must be peak to peak I believe the real Xmax will be 19 mm, Just look at a sub that has real high Xmax, large surround and tall motor,

 

Never judge any tech by specs alone, price is more indicative of what it is, I am pretty sure you are getting what you pay for with that one, no more.

 

Sorry to insist but if you really want an edge on getting louder, do a 15, box is only a little over a cube more than a 12 and you can get 3-4 dB louder on the same power.

[ehall8702]

Oh you are right, i have bought 2 of my old 15s back, they are in the closet, need to build a box still. Im just not willing to give up any more room in my truck than a single 12 takes up, its a simple as that. Ive tried ti talk myself into it so many times but a single 12 leaves enuff room for one person and groceries still in the back seat. No way of stuffing anything under the rear seat, well nothing substancial atleast. Im very aware of the difference a 15 will make just cant give up the room. Poor old XR getting beat on, juat now looking for something that will take more power so im not right on the edge of clipping all the time. Ended up ordering a dual 1 ohm STU, will see wtf itll do, if im not happy im sure i can move it down the road pretty easily.

[Joe X]

Don't get me wrong, not saying it will not meet your expectations is just that they list the parameters incomplete and lie about Xmax so that it gives better impression that what is worth,, don't like companies doing that, awesome products never lie or hide stuff from the customer.

 

Anyways let us know how you liked it when you have it running, the suggested box is 2 cubic feet new tuned to 32 and a port area of 31 square inches (low imo).

[ehall8702]

Going in a 2.25 cube tuned at 32hz ( after sub displacement and bracing , was built for an IA DP r6 12) port area was whatever triticums port calculator suggested for slot port at that volume at 2k rms. Hopefully doesn't choke it out too much. Always had good luck with trits calculator, sucks last dozen times I've went to use it it's all fudged up. Always at least one cell can't be modified . This is also my first dealing with deaf bonce stuff, it's unique enuff im aure i can move it down the road if i don't like it .

On 11/15/2023 at 2:33 AM, Joe X said:

Don't get me wrong, not saying it will not meet your expectations is just that they list the parameters incomplete and lie about Xmax so that it gives better impression that what is worth,, don't like companies doing that, awesome products never lie or hide stuff from the customer.

 

Anyways let us know how you liked it when you have it running, the suggested box is 2 cubic feet new tuned to 32 and a port area of 31 square inches (low imo).

 

[Joe X]

That calculator usually fails on the safe side giving you a load of port area (some of which you probably don't need) so I am sure it will be fine.

 

The sub is peaky and the bigger than suggested box will help with that so if you are leaning on SPL side you will probably like it .

[ehall8702]

10 hours ago, Joe X said:

That calculator usually fails on the safe side giving you a load of port area (some of which you probably don't need) so I am sure it will be fine.

 

The sub is peaky and the bigger than suggested box will help with that so if you are leaning on SPL side you will probably like it .

Yeah just need bottom end, I have almost 2k to the doors and they play with authority down to 75ish hz, so just need sum knock when I want it... Appreciate your time replying, will video results.

[ehall8702]

First impression of the STU is , damn! Louder and more authority than the XR it replaced, to be fair it's a dual 1 ohm vs the XR dual 2 ohm, so another 500ish watts prolly. Still real stiff so I only expect to get louder and deeper. @Joe X, as far as xmax I believe it's 28mm each way, just holding a tape up to side with it playing I can see peak of surround coming out over an 3/4" past where it rests, I know it's not accurate measurement but it REALLY MOVES .  Will try and get sum video when my new phone gets here, using a backup phone with garbage camera.

[ehall8702]

2.25 cubes @ 32hz think was 40ish cuin port area. its whatever a Death Penalty r6 12 wanted. was a quick box for the DP to see how it sounded , ended up going a bit bigger and alot more port area which is why this box was unfinished and sitting around.

 

[James8638286]

Sounds good , im going the same route but idk what specs to build my box to , sub specs are 35 hz and 31 of port area