Hi,
Background
I've been given a pair of Boston HD7 in a not very decent condition. Tweeters (and maybe woofers) had been changed, don't know about the crossovers. See pics. Sounds better than expected but highs are metallic and sibilance + hissing are very prominent. Also not much bass (that might be already the case when new, since it's a small woofer). It is a sealed cabinet, external measurements are (aprox) W225 H 355 D 180 mm which is weird because it doesn't match the specs of the HD7 but the HD5. Thus the ? in the title.
Question
What can I do with these?
Sergi
Background
I've been given a pair of Boston HD7 in a not very decent condition. Tweeters (and maybe woofers) had been changed, don't know about the crossovers. See pics. Sounds better than expected but highs are metallic and sibilance + hissing are very prominent. Also not much bass (that might be already the case when new, since it's a small woofer). It is a sealed cabinet, external measurements are (aprox) W225 H 355 D 180 mm which is weird because it doesn't match the specs of the HD7 but the HD5. Thus the ? in the title.
Question
What can I do with these?
- Change drivers and XO. In that case, could I have some suggestions? I live in Europe (no Parts Express).
- Get rid of everything and get a new set of speakers, it will be difficult to find drivers for that "small" sealed enclosure
- Other
Sergi
More info:
- Small room (3.5 x 4.5 m). Speakers close to the back wall.
- I usually listen to medium volume.
- Currently using a Rotel RA-11 and during Xmas will finally solder and build a Modulus-86 amp. Both AB around 40W.
I would put them in the skip. A prefectly working pair of those speakers can't cost more than 50 euros. You could easily spend more than that on cheap replacement drivers.
jeff
Yes, makes sense. I wrote the post just in case someone had a clever idea of drives possibly fitting (mechanically and sonically) the enclosure.
Thanks
Thanks
There is a thread you might be interested in.
https://www.diyaudio.com/community/...sealed-simple-loudspeaker-build-plans.352046/
Hello and thank you!
Yes I will check later, I think my cabinets are a bit shorter (less depth) than your design, though. How would this affect the sound?
I repurposed an HD5 cabinet for a small bookshelf with a 2.5in aluminum cone full range as mid tweet and nice AC130F1 5.25in woofer. I’m sure the HD7 can be used with a 6.5in woofer in similar fashion.
They are the main speakers in my daughter’s room - she loves them.
https://www.diyaudio.com/community/threads/fr58ex-and-ac130f1-micro-fast-waw.280331/
They are the main speakers in my daughter’s room - she loves them.
https://www.diyaudio.com/community/threads/fr58ex-and-ac130f1-micro-fast-waw.280331/
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thank you both!
In any case, great, I have two projects to follow now in case I want to try the fix.
Thank you again.
I'm not sure my HD7 is really an HD7, following the measurement details in the specs it should be an HD5, the HD7 should be much bigger. My external measurements are (approx) W 225 H 355 D 180 mm, this sounds more like an HD5 to me. Weird.
In any case, great, I have two projects to follow now in case I want to try the fix.
Thank you again.