Twin Sons of Different Mothers KLH 5/Optimus 5

[tiga]

Sounds like someone replaced the tweeter in there. Both my Optimus 5's and Nova 8's (same speaker) had a 4 ohm tweeter, which looked identical to the mids except for a slightly different magnet. The Nova 7b's used 16 ohm tweeters, I wonder if that's what is in yours?

Just picked up a pair of the Optimus 5's at the local GW, cases and grilles in pretty good shape, but some %#$@ tried to use spray foam insulation to hold 1 of the woofers in, I guess he lost the screws.

These have an 8ohm woofer, 2 4ohm mids in series, and a 16ohm tweeter. Its a good thing I opened them up before I hooked them up, one speaker had 3 mids in it, the other had both tweeters (one wired in series with the other mid). Good news is all the drivers ohm out good, I am currently trying to repair the damage. And ordering new caps for the crossovers.

Just a note for those interested, 3-caps, all 50v, 3.3uF, 6.8uF, and 33uF.

 

[RickeyM]

Just picked up a pair of the Optimus 5's at the local GW, cases and grilles in pretty good shape, but some %#$@ tried to use spray foam insulation to hold 1 of the woofers in, I guess he lost the screws.

These have an 8ohm woofer, 2 4ohm mids in series, and a 16ohm tweeter. Its a good thing I opened them up before I hooked them up, one speaker had 3 mids in it, the other had both tweeters (one wired in series with the other mid). Good news is all the drivers ohm out good, I am currently trying to repair the damage. And ordering new caps for the crossovers.

Just a note for those interested, 3-caps, all 50v, 3.3uF, 6.8uF, and 33uF.

Two mids and a tweeter, sounds like you've got a pair of Optimus 5b's there.

 

[whitey]

Two mids and a tweeter, sounds like you've got a pair of Optimus 5b's there.

5's

5b's

Iv'e got two pair of the five's. I might run them through a realistic quad reciever. Thanks Livin4 for the cap values, saves me seaching.

 

[RickeyM]

DOH! Shoulda picked that up from the pic of the terminal plate.

 

[RS Steve]

I had the 5 -Bs years ago and blew the tweeters very quickly.
I installed a set of Realistic super tweeters and they were better than new.

I think the tweeters were the only weak point in the speaker, they had great sound and good balance.

 

[jsixis]

like most manufactures Tandy had things made for them to sell.
That woofer in the realistic, I have a pair of them, really nice specs for a supposedly cheap woofer. FS is 20hz which is pretty rare.

 

[jimfet]

I had a pair myself. I bought them new, in I'm guessing around 75. I replaced the tweeter with a Fostex bullit horn the Shack was selling at the time. The woofers in mine had a ring of hard material in the center half. Had a rough feeling to it. I remember they were on sale for half price. Great looking cabs.