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You can use any of the London Soundweb units with the original JBL M2 macro exact as Jonas is pointing out above.

The BLU-160 & BLU-800 series are modular and can accommodate 4 input or output...

I agree with Johan. I have (or have had, except genuine 476Be) access to all of the above drivers and the 1,5" drivers with SL or Be diaphragms sound better to my ears compared to D2. Just sounds...

Hi,

I do have the M2 waveguide mounted upside down i my Compact Monitor, albeit the woofer i still below the waveguide. I have measured the waveguides both ways and there is no difference. But...

Probably old news, but I noticed that JBL has posted a M2 DCi tunings file on their web site. I wonder what differs compare to the original file?

Kind regards
//RoB

Dear all,

I can try to feed one of BSS BLU units with the original JBL M2 file and do a curve of high and low at the end of the week to back up Grumpy.

Kind regards
//RoB

Pos,

What are the measures of the original fronts, ie the grill (the mesh/fabric) that covers the woofer ? Can you post some pictures please.

Kind regards

//RoB

Hi all,

-A couple of observations regarding driver mounting on the M2 waveguide.

If the adapter plate is correctly done the weight of the driver rests on the mouth of the horn mouth. There is...

How about 14LE-H3 or PRO1400?

//RoB

Dear all,

M2 is a system. No way to get to the exact point without the same parts. However Crown uses BSS DSP HW in their iTech amps so using a separate BSS unit (BLU 80, 16, 50, 160 or 800)...

Hi all,

The story I got was that it was not complete drivers. However if it is, that is a bargain ! I sure hope you get them.

That is what is kind of what you get for a good pair of used...

Hi all,

Sorry to be a party pooper, the driver price listed a few posts above is only for the diaphragms… I have no idea how to install them or if it is doable outside the factory, but the...

Hi Widget,

Do you know what JBL SDEC model corresponds to what BSS model?

The older SDEC3000 (and I think the SDEC4000) is a BLU16 based unit with the USB connector on the front.

What is...

Hi,

JBL seem to use the BSS BLU32 and the BLU 80 rebadged to SDEC. They, together with the BSS BLU16 are quite noisy with only one or two fans.

The BSS BLU160 (I think) and the BLU800 (I know)...

Hi,

I think the baffle edges are quite important here since the waveguide is rather wide. In the M2 the edges of the waveguide are the really covering the edges of the cabinet. From my thinking,...

Some additional info to be found here;

http://www.audioheritage.org/vbulletin/showthread.php?36789-Compact-monitor&p=374486&viewfull=1#post374486

Kind regards

//RoB

Hi,

Ok, I will post picture of the rear tomorrow.

Kind regards

//RoB

Hi

I will post more data tomorrow. A friend has some 2435's and I will try them later. I have 2450SL's, 2451Ti's and 2451Be's and will post data on them in my other thread.

65049

Have a...

Here is how a 2451Be (Truextent) looks like on the new JBL M2 waveguide. No correction, 1/24 smoothing, short window 4ms

Happy Easter
//RoB

65044

2451J Ti

Hi,

Have you seen this? Pretty interesting.

Both voice coils in series, 2 x 10 ohms = 20 ohms

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

All the best
//RoB

Maybe stupid questions but please explain.

The electrical filters in M2 seem to consist of a 6db DSP HP filer and a 6db passive HP filter in the cabinet (a series capacitor). The woofer is 36db...

Hi,
It may be easier to read the parameters from 4313B with the a picture of the DSP design.

60487

Regards
//RoB

Dear all,

Is DSP’s indeed Pandora’s box or better left to “later”.

Following the discussions on the use of DSP power to enhance the performance of the new JBL M2 Monitors I decided to do...

Should have known that... Sorry :(
I would guess then that the JBL SDEC4500P is a BSS BLU160, the SDEC4500X is a BSS BLU120 expander without DSP capacity and the SDEC3000 a BLU16. I bit weird since...

Hi,

How would these above mentioned DSP's compaire to the BSS BLU-series?

JBL is stating that BSS BLU160 could be used instead of the Crown's for the M2's and that the BSS file can...