[SoCalWJS]

Danny-

I've been playing around with my (purchased used) Super V's and the in-line Caps that came with them and am curious as to whether or not I should consider different values.







If I send you the value and brand/model info, can you tell me more about what it does? (the frequency it takes effect at and the slope)?

[bdp24]

Is the filter to roll off the highs a little? The wire and the RCA's look like my Kimber Silver interconnects

[HAL]

It looks like the high pass filter to keep the low end out of the coaxial driver.   I use them with my Super V's on the coaxial amplifier.  Mine are the FMODS.  The cable and connectors look like Kimber Kables.

 

[bdp24]

In a stock Super-V, are the coax's run full range on the bottom end? This cable has RCA's at both ends, so it could connect a pre-amp's output jack to the Super-V's input jack, right? No, it's too short! Hal, which Fmod model do you use?

[HAL]

This would go between the preamp and power amp for the coaxial driver like my FMODS.

[SoCalWJS]

It looks like the high pass filter to keep the low end out of the coaxial driver.   I use them with my Super V's on the coaxial amplifier.  Mine are the FMODS.  The cable and connectors look like Kimber Kables.

 

Yes - at least that's what I believe and how I use it 

OK HAL - FMODS?

[SoCalWJS]

In a stock Super-V, are the coax's run full range on the bottom end? This cable has RCA's at both ends, so it could connect a pre-amp's output jack to the Super-V's input jack, right? No, it's too short! Hal, which Fmod model do you use?

Yep, too short - I use an F to F adapter at the end of my RCA's at the Amp end (looking for high quality one's - Cardas stopped making them near as I can tell)

[HAL]

http://www.parts-express.com/pe/showdetl.cfm?partnumber=266-272

[SoCalWJS]

http://www.parts-express.com/pe/showdetl.cfm?partnumber=266-272

Thanks!
May have to try those - I believe mine are at 80 Hz, but no clue on the slope 
Thinking I want to try different crossover points.

[HAL]

Since yours is a single series cap, it is a 6dB/Oct slope, just like the FMODs.

[bdp24]

Yep, too short - I use an F to F adapter at the end of my RCA's at the Amp end (looking for high quality one's - Cardas stopped making them near as I can tell)

Try Brooks Berdan Ltd (just the other side of Pasadena from you, in Monrovia. Brooks was a big promoter of Cardas, and his shop may have some of the adaptors.

[bdp24]

Since yours is a single series cap, it is a 6dB/Oct slope, just like the FMODs.
[/quote

Isn't the corner frequency (but not the slope) dependent upon the input impedance of the power amplifier? I had a little cap/resistor filter installed on the input jacks of my power amp, a real good way to keep the low bass out of your amp and speakers.

[HAL]

Most amps have a nearly pure resistive input impedance.  With a single series cap it is 6dB/Oct high pass.

[bdp24]

Did Danny put anything in the Super-V cross-over to roll off the low end of the co-ax?

[HAL]

That is a question for Danny.

[SoCalWJS]

Since yours is a single series cap, it is a 6dB/Oct slope, just like the FMODs.

????

The page you linked to says 12 db per octave  for FMODS

[HAL]

Not sure now.  I have the red ones like the picture.  The FMODs must be 12dB/Oct.  I did not buy them.  Danny included them with my show pair since I got them at RMAF.

[Danny Richie]

Hey guys,

Yes the FMod's are 12db per octave.

The single cap starts a 6db per octave roll. Where the roll starts depends on the input impedance of the amp being used. Typically a value of .033uF to .047uF works well with most amps, but some might require something a little larger or smaller.

The Super-V's did not come with a high pass filter for the P-Audio co-axial drivers. The high impedance rise in the lower end kept them from being effected too much by the lower frequency ranges. But I did find them to sound a little cleaner with a line level RCA type filter.

My favorite cap for the application has been the Sonicap Platinum's. They are not to expensive in the smaller values either.

[SoCalWJS]

Hey guys,

Yes the FMod's are 12db per octave.

The single cap starts a 6db per octave roll. Where the roll starts depends on the input impedance of the amp being used. Typically a value of .33uF to .47uF works well with most amps, but some might require something a little larger or smaller.

The Super-V's did not come with a high pass filter for the P-Audio co-axial drivers. The high impedance rise in the lower end kept them from being effected too much by the lower frequency ranges. But I did find them to sound a little cleaner with a line level RCA type filter.

My favorite cap for the application has been the Sonicap Platinum's. They are not to expensive in the smaller values either.

Is there an easy and relatively inexpensive way to try these? (seems like soldering them into a fairly high quality RCA interconnect would be a little pricey)

[HAL]

A very inexpensive way to try them is to buy a male and female RCA connector and wire the Sonicap Platinum between them.  Cardas makes some very good RCA connectors like Gary Dodd uses on his tube buffers and for cables.   Probably cost about $80 for the connectors.  You can use 2%silver eutectic solder from Radio Shack.  Very good stuff, or use the Cardas Quad Eutectic solder.  You will only need a small amount of it.

Just a thought.