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Planet-9

JL Stealthbox?

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11 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHJL Stealthbox?

Leading reported evidence

Install wooden ring inside the sub box

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I fitted a wooden ring inside the sub box under the place where the speaker mounts as i wasn't too convinced by the screws into the fibreglass holding the speaker into the sub box.

JL Stealthbox?
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Leading evidence: 'Install wooden ring inside the sub box' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install wooden ring inside the sub box' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 11 captured posts examined · 1 partial discussions

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Use audison bit one and drc

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I ended up using an Audison bit one and DRC to have better control over time alignment/frequencies and a hertz hdp1 amp.

JL Stealthbox?
Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Install wooden ring inside the sub box

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I fitted a wooden ring inside the sub box under the place where the speaker mounts as i wasn't too convinced by the screws into the fibreglass holding the speaker into the sub box.

JL Stealthbox?

Use audison bit one and drc

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I ended up using an Audison bit one and DRC to have better control over time alignment/frequencies and a hertz hdp1 amp.

JL Stealthbox?
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

11 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Planet-9: 1 discussions

0 evidence records excluded for query context · 1 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T184158Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Anybody here actually had the JL Stealthbox in their Cayman besides for the guy who volunteered his car for the prototype for JL? If so, what were your impressions?

POST 2Original post

i'll be able to tell you in about 4 weeks, i've got one coming from JL in the states, due to arrive at Celsus (jl distributer in the uk) towards the end of April. I had the JL 13tw5 in my Audi TT custom install and was very happy with it. JL stealthboxes always seem to get even better bass than my humble efforts, so hoping for good things. ( audi pics below)

POST 3Original post

Did you get the JL Stealthbox installed in your Porsche , Wellhouse? Would love to see the pics and get an idea of $$$ it took....

POST 4Original post

Pictures as promised, it's actually shallower than it looks in the pics, excellent fit and doesn't take much of the boot space at all. I fitted a wooden ring inside the sub box under the place where the speaker mounts as i wasn't too convinced by the screws into the fibreglass holding the speaker into the sub box. The speaker is now well and truly secure! Excellent sub and the box is shaped so you can still get to the oil/water flap.

POST 5Original post

That looks awesome! If it sounds half as good as it looks, it's a winner. Thanks for posting.

POST 6Original post

I'd be in for one of those (yes, in a GT4 ). What can I say - I'm all about the bass. My preference would be to stretch a piece of acoustically-transparent cloth over the woofer in order to stealth the install a bit more.

POST 7Original post

I like my bass and love this upgrade to the bose system . I'm leaving the rest of the speakers - it sounds great now (to me that is!)

POST 8Original post

To be honest with the boot (trunk?) closed you can't see it, but i have replaced the porsche solid trim that hides the boot space with acoustic cloth. Probably not necessary but i think it helps the sub breath (in my mind anyway)

POST 9Original post

i reckon you could do the install for about $1000 if you wanted to depending on what amp you use. (less if secondhand). You can probably see i take my bass seriously from the install i did on my TT. Needless to say i spent a bit more! I ended up using an Audison bit one and DRC to have better control over time alignment/frequencies and a hertz hdp1 amp. Electronics are mounted in the front boot where there is an access panel and space in front of the battery . (i think this is where the auto changer/nav was mounted in the mk1) Very pleased with the finished result. Capable of more bass than i'll ever need!

POST 10Original post

Interesting. Definitely something that I'm looking at doing down the line.

POST 11Original post

If you look for an idea how to integrate an nice Subwoofer in the rear trunk without ocupying the whole space, you might have a look in my audio project documented on my homepage. The description is in German but many, many photos show all details and most things are selfexplanatory. If you have any questions, just let me know just a photo

This is a source reference. Confirm exact model applicability in the original material.