Ultimate Harman Kardon Sound Upgrade: Bang & Olufsen Bass Drivers

Jolbex · 06-15-2023, 05:50 AM

So generally....are Ali BOs worth some 400usd?

pn82hhz · 06-15-2023, 10:32 AM

At the moment - No.

But let me do a comparison (with newly added aftermarket amp) between the B&O and the OEM HK. I suspect the HK will be more than adequate with an amp.

blau3er · 06-17-2023, 02:55 PM

Quote:

Originally Posted by pn82hhz

At the moment - No.

But let me do a comparison (with newly added aftermarket amp) between the B&O and the OEM HK. I suspect the HK will be more than adequate with an amp.

I can only assume that the fake B&O are not in line with the real ones then....

My experience is at total odds with yours. The genuine B&O under seats that I've fitted with HK offer more punch and are worth the money IMO.

pn82hhz · 09-05-2023, 09:44 AM

Well, in the end I got a 4 channel amp, used 2 channels to add some weight to the OEM HK underseat mid bass drivers and 2 channels to power a single 12" Alpine SWR1242d sub in a sealed box placed in the boot. Have got the HPF on for the underseats to direct punchy 80Hz bass and above to those and the LPF on the other 2 channels switched on pushing everything below 80Hz to the sub. Sounds unbelievable!

The beauty is that when boot space is required I simply unplug the connector to the box and switch the HPF filter off for the underseats. The amp does wonders to add extra grunt to the underseats!

I played with a 2 channel amp for a while with both HK and Ali B&O subs. The alpine was just way too harsh - got a lot of rattle. The Sony 4 channel amp is so much more smoother!

Very happy!

fuzzytonic · 09-21-2023, 03:54 AM

Quote:

Originally Posted by JayGee241

Hi everyone, new to the forum. My name is Jim. Nice to meet you all!.

Hey,
Your aliexpress link seems to be not valid anymore. Can you maybe give the product name as listed on aliexpress so that I can do a fresh search ?
Thanks.

JayGee241 · 09-28-2023, 08:11 AM

Quote:

Originally Posted by fuzzytonic

Hey,
Your aliexpress link seems to be not valid anymore. Can you maybe give the product name as listed on aliexpress so that I can do a fresh search ?
Thanks.

Just search Bang and Olufsen BMW or B&O Bass BMW. You'll see a bunch of listings.

DmytroArtym · 10-08-2023, 09:34 AM

i bought defective B&O speakers for $25, repaired them and installed them in a bmw e60,

they sound much better than the original logic7. with an amplifier from f10 the bass is clear even at maximum volume, I think these are the best speakers that can be installed in a bmw, they have a large 63mm coil and a very hard hexacone diffuser such as eton uses in their speakers, now I use a modified logic7 amplifier from a bmw e60 that gives 200 watts each for low-frequency speakers, and the bass is very, very good

toomanybims · 10-30-2023, 10:32 AM

The new link gives a list of generations and it doesn't include F25. Is there a substantial difference in fitment from G30 or F10 and the F25 (X3)?

06-15-2023, 05:50 AM	#23
Jolbex Private First Class 45 Rep 156 Posts Drives: X3 Join Date: May 2023 Location: Europe iTrader: (0)	So generally....are Ali BOs worth some 400usd?
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06-15-2023, 10:32 AM	#24
pn82hhz New Member 0 Rep 5 Posts Drives: BMW F10 530d MSport Join Date: Feb 2023 Location: England iTrader: (0)	At the moment - No. But let me do a comparison (with newly added aftermarket amp) between the B&O and the OEM HK. I suspect the HK will be more than adequate with an amp.
	Appreciate 0 Quote

09-05-2023, 09:44 AM	#26
pn82hhz New Member 0 Rep 5 Posts Drives: BMW F10 530d MSport Join Date: Feb 2023 Location: England iTrader: (0)	Well, in the end I got a 4 channel amp, used 2 channels to add some weight to the OEM HK underseat mid bass drivers and 2 channels to power a single 12" Alpine SWR1242d sub in a sealed box placed in the boot. Have got the HPF on for the underseats to direct punchy 80Hz bass and above to those and the LPF on the other 2 channels switched on pushing everything below 80Hz to the sub. Sounds unbelievable! The beauty is that when boot space is required I simply unplug the connector to the box and switch the HPF filter off for the underseats. The amp does wonders to add extra grunt to the underseats! I played with a 2 channel amp for a while with both HK and Ali B&O subs. The alpine was just way too harsh - got a lot of rattle. The Sony 4 channel amp is so much more smoother! Very happy!
	Appreciate 0 Quote

10-08-2023, 09:34 AM	#29
DmytroArtym Registered 0 Rep 1 Posts Drives: Bmw 525d 2005 Join Date: Aug 2022 Location: Poland iTrader: (0)	i bought defective B&O speakers for $25, repaired them and installed them in a bmw e60, they sound much better than the original logic7. with an amplifier from f10 the bass is clear even at maximum volume, I think these are the best speakers that can be installed in a bmw, they have a large 63mm coil and a very hard hexacone diffuser such as eton uses in their speakers, now I use a modified logic7 amplifier from a bmw e60 that gives 200 watts each for low-frequency speakers, and the bass is very, very good Last edited by DmytroArtym; 10-08-2023 at 09:41 AM.. Reason: add foto
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10-30-2023, 10:32 AM	#30
toomanybims Registered 0 Rep 2 Posts Drives: M3, X3 Join Date: Oct 2023 Location: Dallas iTrader: (0)	The new link gives a list of generations and it doesn't include F25. Is there a substantial difference in fitment from G30 or F10 and the F25 (X3)?
	Appreciate 0 Quote