[BrandonB]

I know there is  probably some info on this in the forum and a video online but I would like to talk about it a bit.  I am ready to make  hi-pass filters to split my triple OB Subs from my NX-Otica's.  I'm not sure what capacitor would be the best.  What have you guys used in yours?  I was also thinking that I should probably use pretty nice RCA's and silver wire.  Has anyone gone to the extreme of having them Cryo'd?  Can you Cryo a Capacitor?  I am going to have fredrick build it for me.  I could do it but he makes it look so nice and tidy.  His work is excellent.

[nlitworld]

So Brandon,
The first thing we need to know is what amp you're using for your speakers? High pass filters are dependent on input impedance value as that is what load the preamp will see. Also you'll want to know what frequency you want to cross over at.

As for fancy RCA, I definitely agree. I always use KLE plugs, but any of the low mass ones are a little finicky on position. I've used a wide range of caps for this, but I prefer the Miflex.if your value lands on one still available at Sonic Craft, then you're in luck. 

[NIGHTFALL1970]

Brandon,
You mentioned using silver wire. Danny has mentioned negative things about using it in videos and in posts. I would look into that before sending a lot of money on it.

[BrandonB]

So Brandon,
The first thing we need to know is what amp you're using for your speakers? High pass filters are dependent on input impedance value as that is what load the preamp will see. Also you'll want to know what frequency you want to cross over at.

As for fancy RCA, I definitely agree. I always use KLE plugs, but any of the low mass ones are a little finicky on position. I've used a wide range of caps for this, but I prefer the Miflex.if your value lands on one still available at Sonic Craft, then you're in luck. 

The preamp and amp is an SMc Audio preamp and amp.  I am going to have to get the measurements from SMc.

[BrandonB]

Brandon,
You mentioned using silver wire. Danny has mentioned negative things about using it in videos and in posts. I would look into that before sending a lot of money on it.

Now that you mention that you are correct.  I always read about silver wire being used inside components but Danny talks about silver wire not being so great in cables.  I'm curious why the difference with wire inside of a component and outside?

[nlitworld]

The preamp and amp is an SMc Audio preamp and amp.  I am going to have to get the measurements from SMc.

If you don't hear back promptly, just grab a multimeter. Turn the amp on, and check the resistance across signal and ground pin on your input. If running balanced cables, either signal will work to keasure, and you'd need 2 caps per side.

Also the big thing with mixing metals in signal wires is coated or mixed metals will have different conductivity and thus different speed of electrical current. Silver coated copper would have the outer skin conducting slightly better (faster) than the center copper and could create phase issues between high frequency and low. If a section is just silver or just copper then cool, but you also wouldn't want + signal to be silver and - to be copper. Granted this is for ultra super trained ears, but do you want to take that risk? Lol. Silver or copper wiring by themselves is good, just try to find very good dead soft annealed silver which tends to not have that glare and sharpness people have talked about. OK silver wire is meh, good silver wire sounds very good.

[Early B.]

Brandon,
You mentioned using silver wire. Danny has mentioned negative things about using it in videos and in posts. I would look into that before sending a lot of money on it.

Pure silver wire is OK when done right. Danny has an issue with silver-plated copper.

[BrandonB]

Pure silver wire is OK when done right. Danny has an issue with silver-plated copper.

You know even from a layman's point of few that would make sense because the signal would travel thru the different material at different speeds.

[Danny Richie]

Pure silver wire is OK when done right. Danny has an issue with silver-plated copper.

Correct.

Brandon, check this page out: https://gr-research.com/hi-pass-filters/

[maty]

In my second system, with a PC/W11 optimized both hard and soft for multimedia, I use JRiver MC 64-bit for my KEF Q100 coaxial speakers (modified, they sound much better than the originals) to create a HPF.

The KEF Q100 goes down to 49 Hz at -3 dB thanks to the front bass reflex, but the coaxial driver/woofer does not, as is the case with the other woofers. This way, the amp is more relaxed in the low frequencies -> better sound, more impactful bass.

[BrandonB]

I was talking to the designer of my preamp about how to hook up my subwoofers since I dontt have the high pass filters yet.  He told me to run them from my speaker connections on my amplifier.  I mentioned to him that it was temporary until I could get the hi-pass filters built but he said he is not a fan of the hi-pass filter coming off the preamp.  So my question is how is everyone connecting their OB Subs? 
 

[tremrej65]

With the X-LS Encore, the high-pass filter is highly beneficial, otherwise the unique woofer works too hard. I cut the frequency at 70 Hz (-3 dB).
You can see the detail of my setup here:
https://www.audiocircle.com/index.php?topic=192251.msg2012702#msg2012702

[nlitworld]

Hey Brandon,
I was fortunate to have two rca outs on my preamp, so I simply put the caps between Out1 and Out2 and there was nothing external or extra cabling needed. If that is an option given space constraints and rca jacks available, it does make things super easy, unless you swap in different amps periodically.

[BrandonB]

Hey Brandon,
I was fortunate to have two rca outs on my preamp, so I simply put the caps between Out1 and Out2 and there was nothing external or extra cabling needed. If that is an option given space constraints and rca jacks available, it does make things super easy, unless you swap in different amps periodically.

Yeah I was thought I was going to do that then I realized that my preamp has 1 XLR and 1 RCA out and I have a single ended amplifier so their and the subs only have the RCA connections. 

[BrandonB]

With the X-LS Encore, the high-pass filter is highly beneficial, otherwise the unique woofer works too hard. I cut the frequency at 70 Hz (-3 dB).
You can see the detail of my setup here:
https://www.audiocircle.com/index.php?topic=192251.msg2012702#msg2012702

I was planning on doing that but just wanted to see if everyone is connecting their OB Subs that way.