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Poor Audio - Amplifier Options

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YOUR RESEARCHPoor Audio - Amplifier Options

Leading reported evidence

Replace alpine ones, and it's had the head unit

Performed · outcome unconfirmed

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed · Original poster
It has the Bose system, and at some point in it's history it's had the dash and rear speakers changed for Alpine ones, and it's had the head unit changed to a not great Pioneer Navi unit.
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Poor Audio - Amplifier Options

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Leading evidence: 'Replace alpine ones, and it's had the head unit' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace alpine ones, and it's had the head unit' (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.

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Use ones are much cheaper

Suggestion or failed attempt

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
Used ones are much cheaper but I'd rather avoid them because they're probably all just as knackered as mine?
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Poor Audio - Amplifier Options

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.

Replace alpine ones, and it's had the head unit

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
It has the Bose system, and at some point in it's history it's had the dash and rear speakers changed for Alpine ones, and it's had the head unit changed to a not great Pioneer Navi unit.
Original post Read captured discussion
Poor Audio - Amplifier Options

Use ones are much cheaper

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
Used ones are much cheaper but I'd rather avoid them because they're probably all just as knackered as mine?
Original post Read captured discussion
Poor Audio - Amplifier Options

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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.

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

Rennlist: 1 discussions

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Generation: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Just picked up this beautiful 996 Turbo! Among a few other niggles, the sound system is really bad. It has the Bose system, and at some point in it's history it's had the dash and rear speakers changed for Alpine ones, and it's had the head unit changed to a not great Pioneer Navi unit. The door speakers seem to produce bass down to about 60hz, but only at extremely low volumes. As soon as the volume is turned up it distorts and falls apart. Mids and highs seem ok. I suspect the amp is the culprit? Attached is a photo of the one currently fitted, interestingly the date on it is 2005 but the car is a 2003 - it must be a replacement itself? What are my options? A new Bose amp seems to be about �700. Used ones are much cheaper but I'd rather avoid them because they're probably all just as knackered as mine? I'd be happy replacing it with a different model, but only if it's either a direct swap, or there are adapter cables available. Definitely not interested in doing any rewiring. Could it also be fixed by Bose or someone else?

POST 2 / ORIGINAL POSTEROriginal post

Bump, hope that's ok, this post was half way down the forum by the time it was approved

POST 3Original post

Sorry, I can't help you with a plug and play recommendation. But I'll talk anyway. The amp I put in mine is a JL VX600/6i. Expensive. 6 channels plus a sub woofer pre-amp output. New speakers. It requires cutting and soldering for signal wires and giant cables to the battery. It has DSP and allows you to tune each channel for frequency and time. Tune it up with a Audio Control microphone and RTA. It sounds phenomenal. That said, most of the time the stereo is off. The sound of the machine is just as phenomenal. Good luck with a fix!

POST 4Original post

I�m far from expert, but it doesn�t sound like an amp issue to me. Your system is a MOST fibre optic system which brings complications. Little will be plug and play, so I�d pull that Pioneer head unit and pray they didn�t hack up the system too much. One unit that DOES work with MOST is the PCCM+ system which many extol.

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