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Different/Not Matching Front Vs Rear Speakers

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHDifferent/Not Matching Front Vs Rear Speakers

Leading reported evidence

Replace by 4ohm audisons) are 3ohms

Performed · outcome unconfirmed

No successful repair reported for this finding.

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0
Unsuccessful attempts
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Discussions
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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 · Original poster

The JBL Speakers in the front/rear (the fronts to be replaced by 4OHM Audisons) are 3Ohms, so they, too, will be fine.

Different/Not Matching Front Vs Rear Speakers
Frequently discussed work

Check polarity

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
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.

Suggestion

Check your polarity.

Different/Not Matching Front Vs Rear Speakers
Read full discussion summary

Leading evidence: 'Replace by 4ohm audisons) are 3ohms' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check polarity' (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.

Read captured replies

1 matching discussions · 8 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Use "

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

The rear speakers are generally used for "fill" to pull the sound stage back.

Different/Not Matching Front Vs Rear Speakers

Check polarity

Suggestion or failed attempt

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 contain suggestions
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.

Suggestion

Check your polarity.

Different/Not Matching Front Vs Rear Speakers

Fill "

Suggestion or failed attempt

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 contain suggestions
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.

Suggestion

The rear speakers are generally used for "fill" to pull the sound stage back.

Different/Not Matching Front Vs Rear Speakers

Fill " anyway, especially

Suggestion or failed attempt

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 contain suggestions
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.

Suggestion · Original poster

Or do I not have to be really concerned about this since those speakers are more "fill" anyway, especially with the top down and the wind blocker occupying the back seat space.

Different/Not Matching Front Vs Rear Speakers
Frequently discussed actions (8)

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

Check polarity

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion

Check your polarity.

Different/Not Matching Front Vs Rear Speakers

Fill "

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion

The rear speakers are generally used for "fill" to pull the sound stage back.

Different/Not Matching Front Vs Rear Speakers

Fill " anyway, especially

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

Or do I not have to be really concerned about this since those speakers are more "fill" anyway, especially with the top down and the wind blocker occupying the back seat space.

Different/Not Matching Front Vs Rear Speakers

Replace by 4ohm audisons) are 3ohms

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 · Original poster

The JBL Speakers in the front/rear (the fronts to be replaced by 4OHM Audisons) are 3Ohms, so they, too, will be fine.

Different/Not Matching Front Vs Rear Speakers

Replace front/rear bose speakers

No successful repair reported for this finding.

0
Reported fixes
1
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I have a 996.2 Cab where I already upgraded to an aftermarket high end kenwood head unit, a 10" sub with seperate amp, and replaced the front/rear BOSE speakers with some low ohm (and not expensive) JBL speakers to use with the stock Bose amp. It sounds pretty good, though still not amazing at volume with the top down.

Different/Not Matching Front Vs Rear Speakers

Replace of the 4" speakers

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

Or should I replace ALL of the 4" speakers?????

Different/Not Matching Front Vs Rear Speakers

Use "

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

The rear speakers are generally used for "fill" to pull the sound stage back.

Different/Not Matching Front Vs Rear Speakers

Use with the stock bose amp

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion · Original poster

I have a 996.2 Cab where I already upgraded to an aftermarket high end kenwood head unit, a 10" sub with seperate amp, and replaced the front/rear BOSE speakers with some low ohm (and not expensive) JBL speakers to use with the stock Bose amp.

Different/Not Matching Front Vs Rear Speakers
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.

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

  • Rennlist: 1 discussions

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

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

Generation: 20261026T144035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey All, I have a 996.2 Cab where I already upgraded to an aftermarket high end kenwood head unit, a 10" sub with seperate amp, and replaced the front/rear BOSE speakers with some low ohm (and not expensive) JBL speakers to use with the stock Bose amp. It sounds pretty good, though still not amazing at volume with the top down. I just bought a Kenwood 5ch amp and Audison APX 4 speakers to put in the front dash. Will I have any harmonic or other issues if I pop those in, but leave the JBL speakers in the rear? Or do I not have to be really concerned about this since those speakers are more "fill" anyway, especially with the top down and the wind blocker occupying the back seat space. Or should I replace ALL of the 4" speakers????? Thx! I'm leaving the original Bose door woofers alone.

POST 2Original post

Quotes source post: 19900695

Quick answer - always MATCH the impedance output of the amp with the impedance of the speakers.

POST 3 / ORIGINAL POSTEROriginal post

Thank you. While I appreciate the answer, this was not quite what I was asking to see answered. The new amp is 4 Ohm, but 2Ohm stable. It will power the door woofers at 2Ohms just fine. The JBL Speakers in the front/rear (the fronts to be replaced by 4OHM Audisons) are 3Ohms, so they, too, will be fine. My question was - will I have a problem with the JBL's in the rears not being the same speakers as the Audisons in the front (or, theoretically, any aftermarket front speaker vs keeping the stock rears - same question). Will there be a harmonic mismatch.

POST 4Original post

Quotes source post: 19901686

IMHO, won't matter much. Not sure if you know it but Porsche reverse phases the rear speakers. Check your polarity.

POST 5Original post

Quotes source post: 19901947

Why would they do that? Thanks for sharing that info. Now I need to recheck my new rear speakers.

POST 6Original post

Quotes source post: 19901947

is that just between the mid and the tweeter of the Bose? Or does it apply to aftermarket? in other words, if I�m about to install new front and rear aftermarket speakers, should I switch the positive & negative leads for the rears? TIA

POST 7Original post

Assuming the amp can handle it, impedance mismatch would cause the fronts to be louder than the rears.

POST 8Original post

I don't think it matters much. Just adjust the rear speaker level down in the head unit or at the amp. The rear speakers are generally used for "fill" to pull the sound stage back. Ideally you would want to have matching speakers, but there is no harm in giving it a try and see if you like what you hear.

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