SFP Rolling? Anyone?

[KrellFan1]

Has anyone tried these cables ??

LC-LC Low-Loss Cable Duplex Single-mode 3ft

Online-Only Discounted Price

www.sanspot.com

These use LCElite cables.

I read of another forum that these are killer cables.

I sure love them. Ppl just need to be sure they have an SFP transceiver that’s compatible. Cable is designed ONLY for single mode and NOT multi mode

 

[Nuforce]

I sure love them. Ppl just need to be sure they have an SFP transceiver that’s compatible. Cable is designed ONLY for single mode and NOT multi mode

If you have heard the sanspot cable could you pls tell me how it compares to the CommScope?

The Finisar transceivers I've bought are single mode.

 

[kennyb123]

I read of another forum that these are killer cables.

Corning manufactures the fiber used in many cables, including the one you mentioned. My guess is that it’s their ClearCurve fiber as it is their bend-resistant offering. A good choice though I’m not sure there can be much of a benefit in short runs without much in the way of bends.

I selected this as it mentioned using Corning fiber but it doesn’t appear to use ClearCurve. Maybe I’ll order an equivalent of the one you shared and see if I hear a difference. Thanks for sharing.

Edit: I’m not sure I trust their listing. I believe OM4 is for use with multimode.

 

[TRHH]

Has anyone tried these cables ??

LC-LC Low-Loss Cable Duplex Single-mode 3ft

Online-Only Discounted Price

www.sanspot.com

These use LCElite cables.

I read of another forum that these are killer cables.

There seems to be no "killer" here:

"They differ from many others by their proprietary Ultra Low-loss LC ferrule which reduces the insertion loss (IL) to less than .09dB (vs ordinary IL of less than .30dB). Curious to hear if this may translate into better SQ".

If you than compare it with FS:



Torben

 

[harsheel_dbs]

I spent some time this weekend comparing the CommScope and FS Grade B cable. Both are great, at first i preferred the FS cable but then after comparing again a few hours later, I preferred the CommScope cable. My guess is that my amps weren't fully warmed up during the initial comparison. The CommScope cable has more energy, larger soundstage and more definition. If I hadn't heard the CommScope cable, I would be happy with the FS, as it seems to have a bit more fullness in the midrange.

As always, it's system dependent. With my solid state power amp, I prefer the FS; with my tube power amp, I prefer the CommScope.

 

[TRHH]

I am quit happey with my CommScope TeraSPEED. Below FFWLCLC42-JXF012




Torben

 

[Republicoftexas69]

Pretty much all good with my SFP’s Converters and f/o cables. Have been for over a year now.

 

[arthurs]

So if someone was getting a Lumin L2 and U2 what is current thinking on best 1M fiber cable and corresponding SFP?

 

[audiophilac1]

Has anyone tried these cables ??

LC-LC Low-Loss Cable Duplex Single-mode 3ft

Online-Only Discounted Price

www.sanspot.com

These use LCElite cables.

I read of another forum that these are killer cables.

which forum?
Is it possible to get em elsewhere, its pricey.

These are 3.0mm cables, I had Corning 3.0mm cables. Switched back to 2.0mm because 3.0mm sound seemed too thick

 

[audiophilac1]

I spent some time this weekend comparing the CommScope and FS Grade B cable. Both are great, at first i preferred the FS cable but then after comparing again a few hours later, I preferred the CommScope cable. My guess is that my amps weren't fully warmed up during the initial comparison. The CommScope cable has more energy, larger soundstage and more definition. If I hadn't heard the CommScope cable, I would be happy with the FS, as it seems to have a bit more fullness in the midrange.

As always, it's system dependent. With my solid state power amp, I prefer the FS; with my tube power amp, I prefer the CommScope.

in my setup, it takes about two to three weeks for the module/FO cable to settle down/sound to open up (etc)
(after that, thats when I don't notice any more differences in sound)

 

[Hollandwg]

Hello all, I see this thread was last replied to 6 months ago but I wanted to thank everyone for their input, going all the way back to 2003. I’ve found your experience and experiments with the various SFP modules, formats, and cables very helpful and instructive. It really is remarkable the difference in audible sound each of these things makes. Common network engineering says they “shouldn’t” but I haven’t found the audible difference in things like SFPs to be very subtle. Differences in optical cables are more subtle but still clearly audible to me in my very resolving system.

Here’s a few things I have tried:

Just today I tried the Single Mode SFP over Multi Mode fiber trick that BAZELIO mentioned back in the earlier days of this thread. Pretty interesting with my Finisar FTLX1475D3BTL, kind of warms the sound a bit and makes it a bet less vividly focused. Which is nice for a lot of brighter content. I also ordered the Finisar FTLX8571D3BCL he spoke about to try out but haven’t got them yet.

Since my Finisar FTLX1475D3BTL are designed to drive up to 10KM, and I’m only going 20M, I tried some attenuators which I found pretty much sucked. Conversely, I’ve had great success with the LPSs from Small Green Computer, using either HiFi Tuning or Synergistic Research fuses. The fuses and LPS weren’t a subtle difference, particularly on my Sonore Optical Module. I found that a LPS and good power cable, even on the ethernet media converter, also makes a positive difference.

I really went down the rabbit hole and ordered the highest quality media converter I could find, the one in the ADOT Fiberoptic conversion kit. Supposedly, it’s purpose built for audio but we’ll see if it sounds better or worse than my TP Link MC220L.

Finally, I also decided I needed to evaluate more than one streaming service. I’ve been using Tidal for years, and like it, but after trying Qobuz I think I like that better. Tidal seems to have a little added upper bass punch but Qobuz has clearly better microdynamics when playing the same material.

Anyway, thanks to all, and I’ll let you know how the ADOT media converter and some other stuff I’ve ordered works out. Hope there is still interest here…

 

[bazelio]

Yeah this has remained my long term reference with Cisco cable on the "DAC side" of my network. Recently,.though, I moved to an Afterdark FMC with OCXO powered by a Plixir LPS and this was a really nice upgrade from a simple Trendnet FMC.

On the server side (there's an optical switch in between), I've liked this Cisco integrated SFP/cable. My HQ Player server has a direct optical output and the Cisco integrated provides really nice flow and midrange color. Definitely recommended if you think your sound is a bit on the drier side. I tried 4 1475s in the network and it was just too much in my system.

 

[Republicoftexas69]

Hello all, I see this thread was last replied to 6 months ago but I wanted to thank everyone for their input, going all the way back to 2003. I’ve found your experience and experiments with the various SFP modules, formats, and cables very helpful and instructive. It really is remarkable the difference in audible sound each of these things makes. Common network engineering says they “shouldn’t” but I haven’t found the audible difference in things like SFPs to be very subtle. Differences in optical cables are more subtle but still clearly audible to me in my very resolving system.

Here’s a few things I have tried:

Just today I tried the Single Mode SFP over Multi Mode fiber trick that BAZELIO mentioned back in the earlier days of this thread. Pretty interesting with my Finisar FTLX1475D3BTL, kind of warms the sound a bit and makes it a bet less vividly focused. Which is nice for a lot of brighter content. I also ordered the Finisar FTLX8571D3BCL he spoke about to try out but haven’t got them yet.

Since my Finisar FTLX1475D3BTL are designed to drive up to 10KM, and I’m only going 20M, I tried some attenuators which I found pretty much sucked. Conversely, I’ve had great success with the LPSs from Small Green Computer, using either HiFi Tuning or Synergistic Research fuses. The fuses and LPS weren’t a subtle difference, particularly on my Sonore Optical Module. I found that a LPS and good power cable, even on the ethernet media converter, also makes a positive difference.

I really went down the rabbit hole and ordered the highest quality media converter I could find, the one in the ADOT Fiberoptic conversion kit. Supposedly, it’s purpose built for audio but we’ll see if it sounds better or worse than my TP Link MC220L.

Finally, I also decided I needed to evaluate more than one streaming service. I’ve been using Tidal for years, and like it, but after trying Qobuz I think I like that better. Tidal seems to have a little added upper bass punch but Qobuz has clearly better microdynamics when playing the same material.

Anyway, thanks to all, and I’ll let you know how the ADOT media converter and some other stuff I’ve ordered works out. Hope there is still interest here…

NEET-3008 Neotech Ethernet RJ45 Cable, UP-OCC Copper >Stack Smoothlan> Sonore Optical Mod Dlx> Finisar FTLX1475D3BTL>Owens Corning Single Mode Fiber> FinisarFTLF1318P3BTL> EtherRegen>NEET-3008 Neotech Ethernet RJ45 Cable, UP-OCC Copper> Innuos Zenith>NEUB-1020-1.5 Neotech USB 2.0 cable, UP-OCC Silver, 1.5 metre> LessLoss Echo's End Reference.

 

[italia]

Replaced my Finisar FLTX1475D3BTL SFP's with OptoSpan PSFP-11DT31K002 SFP's. Noticeable improvement in image clarity and dynamics, additional resolution, and reduction in noise. These combined with an upgrade to OptoSpan's Super Low Loss Fiber Optic Cable have made a very positive improvement in my streaming sound quality.

OptoSpan publishes specs on their products, and then tests each product prior to shipping and includes those tests in the packaging. I'm not a big measurements person but it's nice to know they back up their published specs

 

[Republicoftexas69]

Replaced my Finisar FLTX1475D3BTL SFP's with OptoSpan PSFP-11DT31K002 SFP's. Noticeable improvement in image clarity and dynamics, additional resolution, and reduction in noise. These combined with an upgrade to OptoSpan's Super Low Loss Fiber Optic Cable have made a very positive improvement in my streaming sound quality.

OptoSpan publishes specs on their products, and then tests each product prior to shipping and includes those tests in the packaging. I'm not a big measurements person but it's nice to know they back up their published specs

Good for you. Thanks for the insight..

 

[tony22]

Replaced my Finisar FLTX1475D3BTL SFP's with OptoSpan PSFP-11DT31K002 SFP's. Noticeable improvement in image clarity and dynamics, additional resolution, and reduction in noise. These combined with an upgrade to OptoSpan's Super Low Loss Fiber Optic Cable have made a very positive improvement in my streaming sound quality.

OptoSpan publishes specs on their products, and then tests each product prior to shipping and includes those tests in the packaging. I'm not a big measurements person but it's nice to know they back up their published specs

I tried all the recommended Finisars before trying the Optospan. The Optospan is the one that sounds the best to me, and to another audio bud who knows my system.

 

[audiophilac1]

Replaced my Finisar FLTX1475D3BTL SFP's with OptoSpan PSFP-11DT31K002 SFP's. Noticeable improvement in image clarity and dynamics, additional resolution, and reduction in noise. These combined with an upgrade to OptoSpan's Super Low Loss Fiber Optic Cable have made a very positive improvement in my streaming sound quality.

OptoSpan publishes specs on their products, and then tests each product prior to shipping and includes those tests in the packaging. I'm not a big measurements person but it's nice to know they back up their published specs

Did you compare Finisar with OptoSpan?
Before OptoSpan FO cable, What was used?

 

[Hollandwg]

Dang, you guys are a wealth of knowledge! This thread is exceptionally helpful, thanks for sharing. Once I’m a little further along I’ll post more about what has worked for me. I’m going to give a few of your latest recommendations a try.

 

[orange55]

Hello all, I see this thread was last replied to 6 months ago but I wanted to thank everyone for their input, going all the way back to 2003. I’ve found your experience and experiments with the various SFP modules, formats, and cables very helpful and instructive. It really is remarkable the difference in audible sound each of these things makes. Common network engineering says they “shouldn’t” but I haven’t found the audible difference in things like SFPs to be very subtle. Differences in optical cables are more subtle but still clearly audible to me in my very resolving system.

Here’s a few things I have tried:

Just today I tried the Single Mode SFP over Multi Mode fiber trick that BAZELIO mentioned back in the earlier days of this thread. Pretty interesting with my Finisar FTLX1475D3BTL, kind of warms the sound a bit and makes it a bet less vividly focused. Which is nice for a lot of brighter content. I also ordered the Finisar FTLX8571D3BCL he spoke about to try out but haven’t got them yet.

Since my Finisar FTLX1475D3BTL are designed to drive up to 10KM, and I’m only going 20M, I tried some attenuators which I found pretty much sucked. Conversely, I’ve had great success with the LPSs from Small Green Computer, using either HiFi Tuning or Synergistic Research fuses. The fuses and LPS weren’t a subtle difference, particularly on my Sonore Optical Module. I found that a LPS and good power cable, even on the ethernet media converter, also makes a positive difference.

I really went down the rabbit hole and ordered the highest quality media converter I could find, the one in the ADOT Fiberoptic conversion kit. Supposedly, it’s purpose built for audio but we’ll see if it sounds better or worse than my TP Link MC220L.

Finally, I also decided I needed to evaluate more than one streaming service. I’ve been using Tidal for years, and like it, but after trying Qobuz I think I like that better. Tidal seems to have a little added upper bass punch but Qobuz has clearly better microdynamics when playing the same material.

Anyway, thanks to all, and I’ll let you know how the ADOT media converter and some other stuff I’ve ordered works out. Hope there is still interest here…

I would highly recommend trying this SPF+ cable. Amphenol DAC SF-SFPP2EPASS-003. Cheap but much better that all the finisar and Cisco optical.

 

[Hollandwg]

Thanks orange55, that’s an interesting idea. I didn’t even know there was a copper option for an SFP. My main goal in implementing the media converter/SFP was to move to fiber for a >50’ run and gain the added optical disconnect fiber offers, then re-clock at the other end.