Below: JBL 3677 with Mundorf AMT Supertweeter.

I connected the AMT with a simple crossover at the connection point. I don't want to say that I have a completely new speaker, because I don't (because the frequency response was not bent, as in my experiments with the Push over 10khz using an RME preamp, which took away the identity of the JBL. No,...

Of course, I also measured the frequency response of the speakers in my living room. There were some major peaks above 80hz, which I was able to filter out with my RME using DSP. This gave the loudspeaker more authority and contour in the bass. I knew that the JBL 3677s have a drop of -10db from 10k...

In the meantime, I have upgraded my amplifier. That was another big step forward. I have had extensive listening sessions with these speakers. I would like to make one more point here: As Fredrik Lejonklou has pointed out, these speakers have a "realness" that makes you feel as though you're listeni...

What are your thoughts on completely rebuilding the crossover with high-quality components? My thoughts are these: You will fail miserably. I tried to improve the filters, certain that it would not be particularly difficult. It was the opposite. Every value is precisely where it should be. Every co...

AFAIK, ThomasOK and Music Lover made the complete wiring replacement. That's correct and I also moved the X-overs to an external box, placed on the Harmoni (Alu) Mimer Quite a bit better actually. The external box was a bigger step than the wiring imho, and the wiring was a good bit better than the...

Music Lover wrote: ↑2022-09-03 17:28 The box.
This one was the best :-)

Have you finished outsourcing the crossover to the box? What are your impressions, was there an improvement?

matthias wrote: ↑2024-01-14 14:24

Masi wrote: ↑2024-01-14 13:30 the story continues:

Hi Masi,

welcome to the club

Enjoy

Thanks for your kind words, matthias

Here are a few more impressions: At the beginning I was "shocked" at how fine-drawing classical recordings, especially wood instruments, sounded. But even a large orchestra could be reproduced in a way that I had never experienced before. And we're talking about the first notes "straight out of the ...

fast forward: I got my JBL in August 2020. Perhaps a bit of background: I've always been interested in high-efficiency loudspeakers. Especially the look of a 38cm bass is something completely different and these professional speakers have a certain charm "no nonsence design". I came across this foru...

the story continues:

Someone any news?

Looking forward DHL is delivering my parcel :)

Best clip I found was this: https://www.youtube.com/watch?v=CiyT4v_N5aI

Very good sound recording.

there were a few recordings of 3677 playing music. I checked the dropbox-link. It's not working anymore. Has someone new videomaterial or a new link? Thanks

After I had read a lot of stuff over the 3677, I think there must something be that makes this speaker so musical - I wont call it "magic". I will go for the 3677. Had a call with the dealer. They are sold out from the european stock. So the speaker must be shipped from the US. And it goes by ship. ...

Thanks for your interesting thoughts, ThomasOK. I need some advice: I have the chance to get a pair of 3677's for around 880 Dollars per piece. Price in Europe are slightly higher than in the US-Market. Should I go for the 3677 or maybe wait some time till there are some reviews of the new C211. But...

Hi there, Im also a huge fan of the 3677 and thanks to this thread I was pretty shure to buy a pair of the 3677. Now what confudes me about the C211 is: On the spec-sheet the Low-end Driver is listed with M115-8A. This driver is not epensive - you got two of them in the JBL RX225 for about 330 Euro ...