C5Z speaker replacement
Thread Starter
Le Mans Master
Joined: Jun 2016
Posts: 5,406
Likes: 3,945
From: Cincinnati, OH
C5Z speaker replacement
I have a Joying HU and Axxess AXDI-VET1 interface on the stock Bose speakers. I think my PS door speaker is going out and figured I'd replace all speakers. I'm not big into audio but I hate crappy blown speakers lol
I don't want to add an amp or bypass a lot of the system. Just want some bolt in speaker upgrades if possible.
Plan is to get 3.5" coaxial for doors and some 5.25" coaxial for the rear. The 8" door "sub" is my hangup. I don't want a true sub which needs an external amp etc.
JBL GX302
JBL GX525
Is there a bolt in option for the 8" door speakers anyone knows about? I understand that the front 3.5" and rear 5.25" are ran off the HU and the 8" door speakers are ran off a mini amp at the door? Is there an option to run a single coaxial 6.5" or maybe a custom mount 6x9" and run it off the HU?
I don't want to add an amp or bypass a lot of the system. Just want some bolt in speaker upgrades if possible.
Plan is to get 3.5" coaxial for doors and some 5.25" coaxial for the rear. The 8" door "sub" is my hangup. I don't want a true sub which needs an external amp etc.
JBL GX302
JBL GX525
Is there a bolt in option for the 8" door speakers anyone knows about? I understand that the front 3.5" and rear 5.25" are ran off the HU and the 8" door speakers are ran off a mini amp at the door? Is there an option to run a single coaxial 6.5" or maybe a custom mount 6x9" and run it off the HU?
Thread Starter
Le Mans Master
Joined: Jun 2016
Posts: 5,406
Likes: 3,945
From: Cincinnati, OH
Well doing more digging the Joying units can do 4 channel at 50W. I had to find the amp specs to be
Joying amplifier TDA7851
https://www.st.com/en/automotive-inf.../tda7851l.html
I guess this means I can find speakers in the 2 Ohm-4 Ohm range.
May have to call in the experts @GCG on this one so I don't buy the wrong speakers lol.
Joying amplifier TDA7851
https://www.st.com/en/automotive-inf.../tda7851l.html
- Multipower BCD technology
- High output power capability:
- 4 x 48 W/4 Ω Max.
- 4 x 28 W/4 Ω @ 14.4 V, 1 kHz, 10 %
- 4 x 72 W/2 Ω Max.
- MOSFET output power stage
- Excellent 2 Ω driving capability
- Hi-Fi class distortion
- Low output noise
I guess this means I can find speakers in the 2 Ohm-4 Ohm range.
May have to call in the experts @GCG on this one so I don't buy the wrong speakers lol.
Last edited by smitty2919; Feb 8, 2025 at 08:01 PM.
Melting Slicks
Joined: Sep 2004
Posts: 2,847
Likes: 439
From: Spring Texas
This is your only option for direct bolt on and not a lot of work.
https://www.ebay.com/itm/17648635021...0a1576a41d6e49
If you were happy with the sound before, then just replace the bad speaker.
https://www.ebay.com/itm/17648635021...0a1576a41d6e49
If you were happy with the sound before, then just replace the bad speaker.
Thread Starter
Le Mans Master
Joined: Jun 2016
Posts: 5,406
Likes: 3,945
From: Cincinnati, OH
I've read of people going to a 6x9 or a larger single 2 or 3 way coaxial in the doors powered/wired off the original 3.5" speaker. But I think the downside is that the original wiring for the 3.5" is that it is not receiving the full frequency range (no lows supplied to it since the Bose system pre-filters the signal).
I'm not against replacing the original 8" midbass speaker with a OEM in good working order, but if there was a simple solution for a slight upgrade I'd do it. I'm just not into wanting to deal with running new wires from the HU to the 4 locations then having to put in a crossover at the doors to split the high/mids/lows etc etc.
Many report a nice sound improvement with replacing the front 3.5" and rear 5.25".
I'm not against replacing the original 8" midbass speaker with a OEM in good working order, but if there was a simple solution for a slight upgrade I'd do it. I'm just not into wanting to deal with running new wires from the HU to the 4 locations then having to put in a crossover at the doors to split the high/mids/lows etc etc.
Many report a nice sound improvement with replacing the front 3.5" and rear 5.25".
