2015 very flat audio, no bass - diagnosing? upgrading?

Audio, ICE, Speakers, Head Unit, CD, CD Multi changer. If you have a question about any Citroen C3 related Audio, then this is the place.

Please indicate if there is a Citroen CD multi-changer, drawer or cubby under the CD/Radio, if there is the Navigation unit, CD or Radio options.
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My Name: ramendik

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Model: C3 2013-2017 Facelift A51
Year: 2015 (65)
Engine Size: 1.2
Fuel Type: Petrol
Mileage: 22000
Trim Level: Other
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: EB2F PureTech 3-Cylinder (82 PS)
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Hello,

In my recently-acquired C3, autumn 2015, 1.2 82bhp, the audio is pretty bad. Much of the bass appears lost. I even tried with a generator on the phone and under 50 Hz the volume and clarity significantly fall.

I thought it might be a phase issue. (A door or two may have been replaced in the But I could not detect anything with phase tests online. Moreover, with the generator, the problem remains if I shift the entire balance right or left, which should rule out phase problems?

Might this still be come kind of problem with the system - phase or otherwise? How do I investigate?

Alternatively, how do I upgrade? I don't want to lose the trip computer, so I guess a head unit replacement is out? I'd want to get decent sound quality with minimum outlay, is that possible, or does the head unit kill any possibility?

The head unit is the same as in this video https://www.youtube.com/watch?v=B3DdrXeedck

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My Name: Arfur Dent

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Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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ramendik wrote: ↑Sat Oct 19, 2019 2:40 am Hello,

In my recently-acquired C3, autumn 2015, 1.2 82bhp, the audio is pretty bad. Much of the bass appears lost. I even tried with a generator on the phone and under 50 Hz the volume and clarity significantly fall.

I thought it might be a phase issue. (A door or two may have been replaced in the But I could not detect anything with phase tests online. Moreover, with the generator, the problem remains if I shift the entire balance right or left, which should rule out phase problems?

Might this still be come kind of problem with the system - phase or otherwise? How do I investigate?

Alternatively, how do I upgrade? I don't want to lose the trip computer, so I guess a head unit replacement is out? I'd want to get decent sound quality with minimum outlay, is that possible, or does the head unit kill any possibility?

The head unit is the same as in this video

https://www.youtube.com/watch?v=B3DdrXeedck


Hi

You can diagnose this by removing the head unit and trying it on some different speakers to prove the head unit.

You can try a different head unit in the car to prove the speakers.

and if its not a fault with the speakers or the head unit, you can try adding an active sub

there are may interface kits that can link your old wiring to the new head unit while preserving the OEM head unit features. You would need to know what feature you want to keep and find a compatible head unit and the correct connect2 interface to preserve the features you want to keep.
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