Wolfbane Posted September 20, 2015 Share Posted September 20, 2015 (edited) So far, I've changed the tweeters on my 1981 Belles, replaced the tweeters with Crites CT-125's, replaced the original AB Crossovers (1st with Bob's A/4500 XO's) and now have a pair of Dean G built AA XO's I scored from the Garage Sale forum here on the way. I've also upgraded all the tubes in my Type 45 (2.5 Watt) Amp. Logically, where do I go from here for the Belles? Replace the stock mid's with ? or? Need to be affordable (my budget will be ~$500 or less). Edited September 20, 2015 by Wolfbane Quote Link to comment Share on other sites More sharing options...
Schu Posted September 20, 2015 Share Posted September 20, 2015 Incremental improvement? Put the 77's back in Quote Link to comment Share on other sites More sharing options...
Chris A Posted September 20, 2015 Share Posted September 20, 2015 (edited) See https://community.klipsch.com/index.php?/topic/151762-timing-measurements/page-5#entry1914019 Note that this trick works the same for a Belle as it does for a La Scala. The CT125s are good - but they have a little less output (SPL) as the K-77s, so your highs will be slightly attenuated. You can partially compensate by using equalization to bring up the highs a bit. Recommend running Room EQ Wizard (REW) running on a laptop with a calibration microphone to help you rebalance the Belles--by taking in-room measurements. Chris Edited September 20, 2015 by Chris A Quote Link to comment Share on other sites More sharing options...
Wolfbane Posted September 20, 2015 Author Share Posted September 20, 2015 See https://community.klipsch.com/index.php?/topic/151762-timing-measurements/page-5#entry1914019 Note that this trick works the same for a Belle as it does for a La Scala. The CT125s are good - but they have a little less output (SPL) as the K-77s, so your highs will be slightly attenuated. You can partially compensate by using equalization to bring up the highs a bit. Recommend running Room EQ Wizard (REW) running on a laptop with a calibration microphone to help you rebalance the Belles--by taking in-room measurements. Chris Thanks. But I should probably add... no suggestions that if implemented end with me being rolled into a cold, dark 6'X3' hole in the backyard on the next moonless night. Quote Link to comment Share on other sites More sharing options...
totalcomfort Posted September 20, 2015 Share Posted September 20, 2015 See https://community.klipsch.com/index.php?/topic/151762-timing-measurements/page-5#entry1914019 Note that this trick works the same for a Belle as it does for a La Scala. The CT125s are good - but they have a little less output (SPL) as the K-77s, so your highs will be slightly attenuated. You can partially compensate by using equalization to bring up the highs a bit. Recommend running Room EQ Wizard (REW) running on a laptop with a calibration microphone to help you rebalance the Belles--by taking in-room measurements. Chris Thanks. But I should probably add... no suggestions that if implemented end with me being rolled into a cold, dark 6'X3' hole in the backyard on the next moonless night. Now that just takes all the fun out of it. Quote Link to comment Share on other sites More sharing options...
Wolfbane Posted September 20, 2015 Author Share Posted September 20, 2015 Incremental improvement? Put the 77's back in Price is right as I believe I kept them. Finding where I stuck them will be the challenge if I decide to compare tweeters when I swap out the Crites XO's. Quote Link to comment Share on other sites More sharing options...
Zim. Posted September 20, 2015 Share Posted September 20, 2015 x Quote Link to comment Share on other sites More sharing options...
Axz Hout Posted September 20, 2015 Share Posted September 20, 2015 I Quote Link to comment Share on other sites More sharing options...
richieb Posted September 20, 2015 Share Posted September 20, 2015 Th 45 is a great sounding tube no doubt. And will certainly sound fine with the Belle/LS line BUT 2.5 watts is very limiting particularly producing tight, deep bass tones. Put some more juice to them and see what you think. Been there, done that more than once. Quote Link to comment Share on other sites More sharing options...
Wolfbane Posted September 20, 2015 Author Share Posted September 20, 2015 Incremental improvement? Put the 77's back in Price is right as I believe I kept them. Finding where I stuck them will be the challenge if I decide to compare tweeters when I swap out the Crites XO's. Using the A/4500 will put your K77 diaphragms at risk. The AA's built by Dean you have on the way don't have zener diodes, putting your K77 diaphragms as risk as well, however, this may only be relevant if you plan on running a more powerful amp than your Type 45. My winter tube amp runs a pair of NOS RCA 211 power tubes and is rated at about 18 WPC. I suspect these, at 1/2 volume even Beethoven and ALK can hear these a block away when attached to my Belles and rocking. Quote Link to comment Share on other sites More sharing options...
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