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Discussion Starter · #1 ·
I have a 2001 VW Passat 1.8t. About ten years ago somebody smashed the driver's side window and stole the original radio. I replaced it with a Blaupunkt DAB54 which has been working fine since then. However, since it is 2021 now I'd like to be able to connect my phone via Bluetooth. Enter the Pioneer DEH-X9600BT.

Replacing the Blaupunkt with the Pioneer was fairly straightforward as both use ISO connectors. However, no matter how much I adjust the settings the Pioneer simply sounds bad. The sound lacks "depth", if that makes sense? I put back the Blaupunkt and it works as well as it always did. I tried checking the wires and as far as I can tell everything is in order. The Pioneer isn't a cheap model so it is a mystery.

Does anyone have a suggestion as to what the problem might be?
 

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2007 B6 VR6 4Motion sedan
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Does the new unit have enough power output compared to the old unit? What's the RMS/peak output of the old one vs the new one? Could be also that the new unit isn't "talking to the factory amp like it's supposed to, assuming the car has one.
 

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Discussion Starter · #3 ·
Does the new unit have enough power output compared to the old unit? What's the RMS/peak output of the old one vs the new one? Could be also that the new unit isn't "talking to the factory amp like it's supposed to, assuming the car has one.
This is what the manual says:

Blaupunkt DAB54 (old radio) output power
  • 4 x 18 watts sine at 14.4 V and 1% distortion factor at 4 ohms.
  • 4 x 26 watts sine in accordance with DIN 45324 at 14.4 V at 4 ohms.
  • 4 x 50 watts max. power
Pioneer DEH-X9600BT (new radio) output power
  • 4 x 22 watts continuous power (50 Hz to 15 000 Hz, 5% THD, 4 ohm load, both channels driven)
  • 4 x 50 watts max power
  • ½ x 70 watts (for subwoofer)

I don't know if the car has an amplifier. I'll try looking for one. I feel like this shouldn't be a problem since the specs for both radios are almost identical. Since both radios use a ISO connector the output should be the same, right? It's difficult to check since the Pioneer manual doesn't provide a pinout.


Here are some possibly useful links:

Blaupunkt Woodstock DAB54 - Installation instructions
https://www.blaupunkt.com/fileadmin/user_upload/Service/SERVICEDOKU_ZIEL/EA/GB/7644708310001_EA_GB.pdf

Blaupunkt Woodstock DAB54 - Operating instructions
https://www.blaupunkt.com/fileadmin/user_upload/Service/SERVICEDOKU_ZIEL/BA/GB/7644708310001_BA_GB.pdf

Pioneer DEH-X9600BT - Installation manual
https://catalogs.pioneer-car.eu/Manuals/DEH_X9600BT_QRD3226_installation_manual/

Pioneer DEH-X9600BT - User manual
https://catalogs.pioneer-car.eu/Manuals/DEH_X9600BT_QRB3358_manual/
 

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I found that Pioneers usually do not sound that great until you turn on the loudness function. Low, medium, or high. Then you can mess with the EQ.
 
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