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How Do I Connect External Speakers to Rowe CD100 Bubbler?
lilshawn:
the cd100 amp is wired a little weird, i think its a holdout from the old record days where the old stereo needle cartridge was out of phase on one channel as a compatibility holdout from mono cartridges...so you can often get better sound by reversing one channel, as it was all done internally on the juke, (you can see negative wires on positive terminals in the jukebox.) but not reversed on the output taps. it's honestly dumb.
for two 8 ohm speakers, one on the left and one on the right... move both left and right pink and purple wires of your internal speakers down to like E4 and place your 8 ohm external speakers + on the left and right E7 tap and the - onto the left and right E1. you should only have one speaker on each side. you can test the sound as it is, then reverse the positive and negative on one speaker to see the sound difference. the bass will no longer cancel out and will sound boomier.
this should get you down to proper load.
cqlink:
--- Quote from: lilshawn on May 23, 2023, 11:10:28 am ---the cd100 amp is wired a little weird, i think its a holdout from the old record days where the old stereo needle cartridge was out of phase on one channel as a compatibility holdout from mono cartridges...so you can often get better sound by reversing one channel, as it was all done internally on the juke, (you can see negative wires on positive terminals in the jukebox.) but not reversed on the output taps. it's honestly dumb.
for two 8 ohm speakers, one on the left and one on the right... move both left and right pink and purple wires of your internal speakers down to like E4 and place your 8 ohm external speakers + on the left and right E7 tap and the - onto the left and right E1. you should only have one speaker on each side. you can test the sound as it is, then reverse the positive and negative on one speaker to see the sound difference. the bass will no longer cancel out and will sound boomier.
S
this should get you down to proper load.
--- End quote ---
Thanks again!
cqlink:
Sounds great!
cqlink:
Back again (unfortunately)
After dropping another $350 to send my CD100 250W amp to A&B Jukebox / Bruce Wentworth for ANOTHER rebuild, I got it back and I wired my jukebox exactly as we discussed here. Very conservative. By no means was I maxing out the power. No red overload lights.
Played fine until a few days ago. Now the left side is distorting :dizzy:
I was standing in front of the jukebox and just before the left side speakers distorted, I heard the volume drop/ loss of power.
Does anyone have any clue as to what's going on? I really enjoy my jukebox but I'm going bust on amplifier rebuilds!
BTW, I think Mr. Wentworth may be in poor health. I see he shut down A&B Jukebox for an undetermined time period. Even though I'm into two rebuilds, I think he's a good guy.
lilshawn:
amp transistors are EXTREMELY hard to find, as counterfeited transistors are being sold everywhere. ive had to order 3 different sets 3 times from 3 different places (including digikey) to get a good set.
i would double check to make sure you dont have a shorted speaker or something going on with the crossover to be sure. if you've had it professionally rebuilt... i would look into it a little more.
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