Technics SB-F1 Review (Vintage Speaker)

[Tbart]

Here's the very similar LX550--I think the woofer was a little different, but it had the same Linaeum tweeters. The tweeter's radiation pattern results in a null on axis, but this largely fills in off axis. It would be interesting to see how the Klippel would put all of this together into a room response. You can see the on-axis and 30 degree off-axis here: http://murphyblaster.com/content.php?f=rslx_m.html

Is this an appropriate spot to ask advice about upgrading my vintage 7.1 system consisting of 6 PRO-LX550s (1 with foam surround rot) ? If not, can you please redirect? Thanks.

 

[HeadDoc12]

Is this an appropriate spot to ask advice about upgrading my vintage 7.1 system consisting of 6 PRO-LX550s (1 with foam surround rot) ? If not, can you please redirect? Thanks.

You will get plenty of good responses if you start a new thread. Mention room size and budget, associated equipment and intended use

 

[Tbart]

Thank you.

 

[ohnonotagain]

Has anyone measured the performance of the revised (and completely different) SB-F1mk2? The mk2 speakers not only have the "honeycomb disc" flat woofers and similar disc tweeters, but also have a more complex crossover. I have a pair, and my primitive and unscientific measurements in REW show a pretty flat frequency response; they're obviously less bassy than bigger speakers but sound clear and accurate to my uneducated ears. I haven't seen measurements of any of Technics's honeycomb disc speakers anywhere, and since it seems like it was a dead end in speaker design, it'd be interesting to see how they perform compared to the more tradiitional cone design.

 

[DavyRockstar]

Hi, i'm a big fan of that line of speakers, i really like them... i work a lot with them to restore them...

most of the resonances is because they need a lot of work, first in the corrosver the caps should be changed and second all the damping materials are already de-gradated, i suggest to change the suspension of the mid-woofer and use a high quality damping material such a cork to reduce resonances.... is a lot of work and the suspension work requires an excellent job, any voice coil displace will end in mechanic distortions at high volume...

with the proper amp this speakers are sonus faber lumina killers, specially the SB-F3, better in every regard

see my input in audiokarma

hope there is no problem posting other forum, if i am violating any rule i will edit my post

Bringing pride to Technics SB-F1, 2, 3 speakers and restoration

Hi folks, the first thing you need to know is due to the full aluminum baffle, acoustic suspension technology on this speakers/monitors, the seals, as well as other components are completely ruined, so please if you already had a chance to listen to them don’t judge them if you haven’t listened...

audiokarma.org

 

[Azrael]

I haven't read everything and don't know if anyone has mentioned this before:

Could it be that after all these years, the damping material inside the speaker has disintegrated to some extent, depending on what kind of material was used? Perhaps the resonance will disappear when the old damping material is replaced with new material, if the resonance is caused by a standing wave in the enclosure.

 

[NotInYourHead]

I haven't read everything and don't know if anyone has mentioned this before:

Could it be that after all these years, the damping material inside the speaker has disintegrated to some extent, depending on what kind of material was used? Perhaps the resonance will disappear when the old damping material is replaced with new material, if the resonance is caused by a standing wave in the enclosure.

I think it's more due to the thin metal cabinet. The damping material is recycled fiber/denim and I don't know if they can degrade over 40 yrs like normal foam.
Side note: Heartfelt apology to the SB-F1. Over the years I always chuckled when I saw a pair at the local marketplace, thinking it's gonna perform poorly with 2 cheap drivers and a small cabinet. Aside from having no lows, they were really capable for their time period

 

[Descartes]

Use to have a mini stereo stack from
Technics with these speakers! Sold them
for peanuts wished I would have kept them!