Good evening everyone!
Been reading a bunch of threads on Audiokarma for quite some time and the breadth and wealth of knowledge on here continues to amaze me.
In no small part based on the reading here, over the last two months I've slowly assembled my audio setup:
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A pair of MC30s powered by a MX110Z with everything running to a pair of Kauri wood rebuilt Klipsch Heresy's w/updated crossovers, Crites woofers and K77M tweeters.
The MC30s were restored prior to my purchasing and look great cosmetically. Per the original seller, both have new filter caps, new bias rectifier and bias cap. Both had 820k bias resistors replaced that had change value to 950k. Both check on MC load resistor at 38 watts output at <.5% distortion and 1 watt .05%. All measurements made with HP 339A Distortion Analyzer.
The MX110Z was also restored and all tubed checked with the bad ones replaced.
hard to see in the quick photo (table is pending so everything is currently on the floor haha) but I've got a Schiit DAC linked to an Apple Airport Express to pipe in my digital audio as well. Technics MK5 (I used to be a DJ) for my vinyl needs to be connected as well.
So for the questions for the pros:
1. When I power the amps up, there is a light crackle/hiss in both speakers and one speaker picks up a spanish radio station. After some shuffling/trading of wires, amps etc. It seems like the radio station signal is coming from one of the MC30s. What could be the etiology? Something to dig into?
2. If I'm playing the music even at reasonably low volume (background music) the hiss/crackling can't be heard though... is this normal or should it be completely silent?
3. Based on the MC30 restoration details from the original seller, is there anything else I should be checking out/changing? I can do some simple soldering if there is anything else critical that needs changing.
4. I was hoping the FM tuner on the MX110Z would pick up the local NPR station but it's too weak of a signal. Any sort of antennae attachment I can do?
In general though, I hooked everything up and the sound is truly lovely. I'm connected to the 8 ohm output. Any reason I can't use the 16? Also curious as to how I should be adjusting gain (versus master volume on the MX110) on the MC30s and the MX110?
Looking forward to continuing to learn more from everyone on here and continuing to read through the extensive discussions!
Thanks so much in advance as well for the recommendations!
Best,
Albert
Been reading a bunch of threads on Audiokarma for quite some time and the breadth and wealth of knowledge on here continues to amaze me.
In no small part based on the reading here, over the last two months I've slowly assembled my audio setup:
A pair of MC30s powered by a MX110Z with everything running to a pair of Kauri wood rebuilt Klipsch Heresy's w/updated crossovers, Crites woofers and K77M tweeters.
The MC30s were restored prior to my purchasing and look great cosmetically. Per the original seller, both have new filter caps, new bias rectifier and bias cap. Both had 820k bias resistors replaced that had change value to 950k. Both check on MC load resistor at 38 watts output at <.5% distortion and 1 watt .05%. All measurements made with HP 339A Distortion Analyzer.
The MX110Z was also restored and all tubed checked with the bad ones replaced.
hard to see in the quick photo (table is pending so everything is currently on the floor haha) but I've got a Schiit DAC linked to an Apple Airport Express to pipe in my digital audio as well. Technics MK5 (I used to be a DJ) for my vinyl needs to be connected as well.
So for the questions for the pros:
1. When I power the amps up, there is a light crackle/hiss in both speakers and one speaker picks up a spanish radio station. After some shuffling/trading of wires, amps etc. It seems like the radio station signal is coming from one of the MC30s. What could be the etiology? Something to dig into?
2. If I'm playing the music even at reasonably low volume (background music) the hiss/crackling can't be heard though... is this normal or should it be completely silent?
3. Based on the MC30 restoration details from the original seller, is there anything else I should be checking out/changing? I can do some simple soldering if there is anything else critical that needs changing.
4. I was hoping the FM tuner on the MX110Z would pick up the local NPR station but it's too weak of a signal. Any sort of antennae attachment I can do?
In general though, I hooked everything up and the sound is truly lovely. I'm connected to the 8 ohm output. Any reason I can't use the 16? Also curious as to how I should be adjusting gain (versus master volume on the MX110) on the MC30s and the MX110?
Looking forward to continuing to learn more from everyone on here and continuing to read through the extensive discussions!
Thanks so much in advance as well for the recommendations!
Best,
Albert