Blue Jeans Cables

[Silver]

Cables don't need to be expensive or a certain % of the cost of the system. You don't need $10,000 electrical wires for a Ferrari just because it's an expensive car. BJC are great, as are the World's Best Cables options shared above.

Trying to figure out why I can’t post a video on here showing how loose of a fit they are with my Pass Labs amp,preamp ,and two dacs…can anyone post a short video on here pushing in the rca connector and wiggle it to see how loose it is…

 

[ExPerfectionist]

Maybe the equipment's terminals are small, loose, undersized.

You can use plyers to squeeze the RCA cable connectors to make them fit tighter.

Or get a super cheap set of cables at Target or somewhere and see if they have the same "loose / too big" problem. They are pretty much a standard size so I can't imagine an RCA being so big or loose that it doesn't connect and loses the audio signal.

I've had a set of cables be slightly loose so they slip off the connectors more easily than normal, and some cables that fit super tight and are tough to get on/off.

 

[rank]

Not looking for cheap looking for something that does the job well, my system isn’t cheap

Uh uh uh.

 

[ExPerfectionist]

Trying to figure out why I can’t post a video on here showing how loose of a fit they are with my Pass Labs amp,preamp ,and two dacs…can anyone post a short video on here pushing in the rca connector and wiggle it to see how loose it is…

you can't post videos directly I don't think. You can post pictures, convert your video into a GIF to post, or post the video on a free hosting site like YouTube or your Google Drive and paste the link here.

 

[ryanosaur]

The Monolith High Quality Subwoofer/COAX I've been using are solid... I've had no issues with them.

https://www.monoprice.com/product?p_id=2684

However, they are stiff... RG6 is 18awg with a beefy insulation and double shielded. I bought them mainly for cost; have not been disappointed.

 

[Silver]

Maybe the equipment's terminals are small, loose, undersized.

You can use plyers to squeeze the RCA cable connectors to make them fit tighter.

Or get a super cheap set of cables at Target or somewhere and see if they have the same "loose / too big" problem. They are pretty much a standard size so I can't imagine an RCA being so big or loose that it doesn't connect and loses the audio signal.

I've had a set of cables be slightly loose so they slip off the connectors more easily than normal, and some cables that fit super tight and are tough to get on/off.

 

[Silver]

Today when I fired up my rig a connection on the preamp was loose causing a Dac not to work, so I wiggled it and turned it a little and it was fine…beats me what the hell is going on
No pets or kids…just a grouchy wife

 

[Silver]

Anyone try Worlds Best locking RCA cables?…

 

[Blumlein 88]

Anyone try Worlds Best locking RCA cables?…

I have had other locking RCA cables. Seems like a good idea which I came to hate. WBCs regular RCA cables are fine. But hey give them a try. They'll work.

 

[Silver]

Just cut one of the Blue Jeans RCA cables and there isn’t much wire in there a few strands…

 

[ryanosaur]

Just cut one of the Blue Jeans RCA cables and there isn’t much wire in there a few strands…

A lot of interconnects are not using much more than mid-20AWG. According to BJC’s specs, LC-1 is a 25AWG solid copper conductor.

For most interconnect duty, that AWG is fine.

The beefiest conductor option I found for cables like this were what I previously posted a link to, the High Quality Subwoofer/Coax Cable from Monoprice which utilizes RG6 Coax Cabling which specs an 18AWG solid copper Conductor, among other features.

 

[DonH56]

Just cut one of the Blue Jeans RCA cables and there isn’t much wire in there a few strands…

The center conductor is a single solid 25 AWG wire, so should be just one strand. The shield is two layers of overlapping braid, and the dielectric is foamed to reduce capacitance. LC-1 is only 12 pF/foot, one of the lowest available and much lower than typical coax at around 25~30 pF/foot. Whether you, or anybody, really needs capacitance that low I could not say; the only time I went for very low capacitance cables was for a fairly short length from my turntable to my preamp.

25 AWG is plenty large for a line-level audio interconnect, which only needs to handle around 1 mApp, compared to something like 2.5 Arms max for short runs of 25 AWG wires (decreasing to ~500 mArms for very long runs, or about 1.4 App). It is about 0.03 ohms/foot resistance, compared to typical preamp outputs of about 100 ohms or so, so again the smaller wire size is not an issue. It makes the cable more flexible and smaller than cables based on RG-6 coax, a plus for audio interconnects.

 

[Silver]

Thanks for that detailed explanation….
The connection is my main problem, hooking and unhooking has made the connection loose causing me to push and check the connections every day…with my app,preamp and dacs…

 

[DonH56]

Thanks for that detailed explanation….
The connection is my main problem, hooking and unhooking has made the connection loose causing me to push and check the connections every day…with my app,preamp and dacs…

I would contact Blue Jeans directly about that. If you have the problem with multiple devices it's possible they got a bad run of connectors. I'd probably just squeeze the connector's tines a little to tighten them up. I have seen that problem with old cables that were heavily used, but rarely with cables plugged in once and just sitting since.

 

[ryanosaur]

LC-1 is only 12 pF/foot, one of the lowest available and much lower than typical coax at around 25~30 pF/foot.

Comparatively, the Monoprice cable is advertised as 22pF, just below the range you list.
Would be curious to know if their measurement is accurate.

At what point does capacitance become a concern?

FWIW, flexibility is a big deal, and I will absolutely confirm those Monoprice cables are stiff.

 

[Silver]

I would contact Blue Jeans directly about that. If you have the problem with multiple devices it's possible they got a bad run of connectors. I'd probably just squeeze the connector's tines a little to tighten them up. I have seen that problem with old cables that were heavily used, but rarely with cables plugged in once and just sitting since.

I probably unhooked them rehooked about 5 or six times updating my equipment, now they fit loose..I have talked to them even set a video…I could send them back but probably be in the same position later on…I set a video showing how loose the connection is but didn’t get a response back a few days ago,, today the Blue Jean RCA cables sag down after a few hours causing the sound to get bad so I have them propped up with a piece of wood until I find a new path with cables…on my Pass Labs preamp to Pass amp

 

[Blumlein 88]

I probably unhooked them rehooked about 5 or six times updating my equipment, now they fit loose..I have talked to them even set a video…I could send them back but probably be in the same position later on…I set a video showing how loose the connection is but didn’t get a response back a few days ago,, today the Blue Jean RCA cables sag down after a few hours causing the sound to get bad so I have them propped up with a piece of wood until I find a new path with cables…on my Pass Labs preamp to Pass amp

If you don't need the extra flexability, stop messing around and get some good RG6 based interconnects from someone else. I'd probably ask Blue Jeans for a refund by now. This is a super simple thing and almost any cable would work fine and likely not have these fitting issues.

 

[Silver]

I plan on sending them back if they refund or not at this point…

 

[DonH56]

Comparatively, the Monoprice cable is advertised as 22pF, just below the range you list.
Would be curious to know if their measurement is accurate.

At what point does capacitance become a concern?

FWIW, flexibility is a big deal, and I will absolutely confirm those Monoprice cables are stiff.

Capacitance is rarely a concern for consumer runs. 100' and longer runs are routinely used in professional sound reinforcement systems. This article goes into interconnect bandwidth a little bit: https://www.audiosciencereview.com/forum/index.php?threads/interconnect-bandwidth.25441/

 

[DonH56]

My memory of coax capacitance is a little high because the RF systems with which I have been involved were usually 50-ohm systems, not 75-ohm video systems, so a range more like 15~25 pF/ft is more reasonable. A look at the Belden site shows their RG-6 cable family is around 16 pF/ft. For a specific example, I looked at Belden 1530A, a general-purpose cable with 90% shield and the usual 18-AWG center conductor. Per the Belden site* this cable has 28 ohm/1000 ft center conductor resistance, 5 ohm/1000 ft shield resistance, and 16.2 pF/ft capacitance. It also has 0.097 uH/ft inductance and 1.2 ns/ft delay (83% propagation velocity).

Using these parameters I set up a simulation assuming 100 ohm preamp output resistance, 10k ohm amplifier input resistance in parallel with 100 pF, and a 1000-foot interconnect using a distributed lossy (non-ideal) transmission line model. This is the schematic in LTSpice:

For 1000 feet (IL=1000) of RG-6 the loss is about 0.23 dB at 20 kHz and 2.0 dB at 100 kHz:

Repeating with 100 feet (IL=100) the loss is about 0.09 dB at 20 kHz and 0.11 dB at 100 kHz:

* https://www.belden.com/products/cable/coax-triax-cable/rg6-cable/1530a