Westerml

@001 Well done and thanks… certainly no need to verify K-43. pictures of mid, tweet and XO. That is AL right? Not much experience beyond AA for me.

Anyone know how to decode the serial numbers on old LaScala split industrials? Specifically, 8732402/3. I read somewhere that maybe only Klipsch HQ would know. Also, would love to know what components are likely inside (based on time period sourcing) without opening them up. They are tight except for one rubber foot that came off. thanks for any help.

Man, sorry I missed this one. Sure do like your builds @Dneu2011…. Just missed it.

@Dneu2011 some great looking builds. I just recently put my ACAmini on my K402’s with Celestion Axi2050’s and it sounds quite good. To me it sounds better with jumper removed (the way NP likes it). Great little amp. Especially for the top end. I actually sent Nelson an email and asked what he thought might work well on the Celestion’s and he said give the ACAmini build a try. I happen to buy this already built based on good timing….and lack of skill. You have any additional recommendations? My K402/Celestions cover from 225 up in a 2-way configuration. Thanks and congratulations on all your amps moving on…. Mike

Thanks @jcmusic but it appears the XD8080 is different. No obvious interface to dim LCD screen. All channel I/O’s indicator lights go out as typical when you enter the menus through the unit panel but no LCD display brightness I can see. Thanks just the same.

Anyone know how to turn off/dim the front panel lights on an XD8080? I don’t see it anywhere in the PC interface. Maybe somewhere on unit interface? Maybe not possible. I’m sure they have a 10-20,000. hour life expectancy but would rather have them off. And with mine it is left on 24/7 in my system. Thanks

Happy Birthday, Mr. Klipsch! Thank you for opening my ears and my mind to your wonderful world of music.

Thanks @babadonoGreat idea to ring out wires. Especially in this supply chain climate…. would love to hear that range expander. All roads lead to the old DBX stuff. Classic. Great work.

Thanks @mikebse2a3 I will try the chassis wire. Great idea. XILICA, is not in the same outlet or even on the same circuit for that matter. I will rectify this. Amp is a Conrad Johnson MF2500. All caps are good and amp is in good shape. 26dB gain Preamp is also a Motif (also CJ) MC 10. Also, in good shape. Volume control on preamp is 9 o’clock. 10 max. Note: I lifted the amp ground and silenced the low ground noise. But it still has a very faint high frequency ground noise ring. Coming through the 15 I guess. Never heard this before. Thanks

Thanks everyone. Monoprice cables I am using https://www.monoprice.com/product?p_id=4776 Will not lift ground on XILICA. I did try tying the negative and shield together at XILICA as recommended by XILICA and as shown below. It did not solve the issue. Update: I am now using balanced connections to high end amp. Quiet, no noise obviously. The ground noise still persists in the low end which is still single-ended configuration. So same problem. Got it on the Jensen. Not cheap and currently back ordered at PE. Mike Please try the following wiring instructions and let me know if this remedies the noise. -Mark Xilica® Global Customer Relations

Thanks, @LTusler . Thanks for the suggestion. The hassle with that is it would mean opening up RCA connector at the amp side and breaking the shield wire away from connector. Not a huge deal but PIA. That’s why I was thinking to either disconnect shield at XILICA or tie it to “-“ on XILICA so any ground issues would follow to amp side and go to ground. I am no grounding expert but does that make sense. Or should it all end up grounding at the XILICA?…I have not tried lifting the ground on my XILICA and really don’t want to do this with all the sensitive electronic items/chips/etc. in XILICA. …hmmmm

Hey All…Anyone ever have a noise/ground issue with your, XILICA? My situation outlined below: SET UP XILICA XD8080 set up in 2-way configuration with all single-ended/RCA connections at amplifiers. All amps have 3-wire AC plugs. XILICA, outputs are the phoenix connector (see picture) wired with the shield wire tied to the “G” terminal; center RCA pin to +; outer RCA ring to -. Assume RCA plug wiring at amplifier connection is; RCA center pin “red”; RCA outer ring tied to “shield” and “white“ wire as typical with an RCA interconnect. ISSUE Ground loop issue creating noise in my LaScala 15 and my axi2050 drivers on K402’s. Noise on low and high channels Noise on high channel/axi’s an intolerable high frequency ring around 1.5K. Noise on LaScala 15 more typical of a lower frequency ground noise. STEPS TAKEN SO FAR Separated components AC on separate circuits to try and identify house loop issue. Shut off potential house branch circuits/breakers to isolate potential issue of lights, inverters, etc. ”Lifted” ground on low end amp and it eliminated most of the ground noise. Low end/LaScala 15 noise tolerable but not super clean. “Lifted” ground on high channel amp and noise still persists through Axi drivers. NOTE: the ground noise in the drivers is across the frequency range but is intolerable at around 1.5K. A ring that is not acceptable. Different amps get the same issue. i.e. it’s not the amplifiers. MY INTIAL THOUGHTS Ground noise is back-feeding from interconnect shield wire? The RCA connection end on the amplifier end has the shield wire connected to the outer ring on the RCA Jack. The shield wire on interconnect is connected to the G terminal at, XILICA creating the back-feed path. Should the shield wire be left Open at the XILICA? Or should it be tied to the “-“ terminal on the XILICA with the RCA outer ring? Any suggestions appreciated. I can easily drop the shield at XILICA or tie shield to “-“ at XILICA and test this but I do not want to damage my XILICA or my drivers and hoping for some feedback from group. Thanks as always, Mike

Proud father of a new pair of Axi2050’s that will get married to my K402’s this weekend. Needless to say very excited. Looking for an .xdat file or DSP settings I can input to my XILICA manually. Thanks to @Chris A I. Am now a “somewhat” competent XILICA user now understanding variables. I know it’s a small group but any JubScala owners out there using the, Axi2050? I will ultimately ring out my room with REW (hopefully with @Chris A) but wanted to at least get some music flowing with my new drivers this weekend. The great information I am using for my JubScalas with K69/691 is great but would think most everything changes with the, Axi2050. Including crossover points. Thanks again to the Forum for such quality coaching, insight and expertise to quickly get me going. @Islander fellow JubScaler. you get into the Axi2050’s yet? Or know anyone. Thanks. Mike

I am getting ready to try my B&C DE750TN-8 drivers on my K402 horns. I currently have the K1132’s in place and they sound pretty good but curious. From what I understand the B&C ( maybe a 75 and not 750) was what Klipsch used as basis of K691 and I’m sure worked some magic to make it sing. Anyone know if some sort of a phase plug was/is used to make these sound decent? Insight appreciated. Thanks, Mike UPDATE 1/20/2023- No longer a Top Priority since I picked up my Axi2050’s but would be helpful if anyone has input. My set-up could be used for small venue live sound reinforcement at some point and no way the Axi’s are being used for this.. thanks

Thanks @wuzzzer the email I received actually referred to the “Mark as Solution” button as shown below. Thanks. I try to do as I am told. (at least sometimes…:)). Appreciate it! Did any of these replies answer your question? There may be more replies than those shown here. Help others by going to the topic and use the 'Mark as Solution’ button on the post with the best answer Stop receiving these reminder emails. — The Klipsch Audio Community