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In Reply to: RE: Impact of jumpers posted by Duster on March 22, 2016 at 18:18:35
Thanks so much Everyone. Really appreciate your input...:)
@Duster...I am experimenting with jumpers without going through the expense of changing speaker cables... yet again. I am actually currently using a pair of internal biwired cables, however, it's not to my liking as it sounds a little dry in the mids. I could use more warmth too. Seeking a softer and more relaxed treble...I am fine if it's rolled off like the old cardas. I am gonna try new jumpers in combination with a single run of vintage MITs. Do you know of any bulk cable that has those attributes?
Thanks again.
Follow Ups:
I happened to be using MIT speaker cables while experimenting with DIY bi-wire jumpers. I preferred connecting the MITs to the low-posts, and bridging the signal to the high-posts. IME, sonic affectation due to the use of an adapter was more forgivable when the bi-wire jumper was implemented for the tweeter rather than the more dominant driver within the loudspeaker system. An important aspect to consider was the resonant frequency of the woofer may be best served by connecting the speaker cable directly to low-pass section. To my ear, the loudspeaker presented better PRAT when the bi-wire jumper was configured that way. YMMV
A 3 foot run of Cardas 101 bulk speaker cable, divided into four pieces will provide four 9" bi-wire jumpers; two jumper cables per loudspeaker. Each jumper consists of two 14 AWG conductors, which when combined will provide an 11 AWG aggregate/effective gauge bi-wire jumper per polarity. This means both conductors within a single bi-wire jumper will be connected to the same binding post, rather than divide them between the left and right binding posts. It's not a sophisticated litz-wire design, but it should perform well with your MIT speaker cables.
Termination instructions:
https://www.youtube.com/watch?v=BHIR78FYeMs
See link to seller:
@Duster. Thanks again for your help and time. Really appreciate it. So far, I have borrowed 3 sets of jumpers and an extra pair of cables...there is a definite change in sonic character with each change in jumper. I guess it's a matter of finding the combination of cable and jumper that best suits one's preferences in SQ. Will try the Cardas 101 with MIT next.I intend to go barewire with the jumpers. Will deoxit be effective in getting rid of oxidization that will eventually build up...or is there a less tedious way esp with stranded? Thanks again.
Edits: 03/25/16 03/25/16 03/25/16
DeoxIT is a contact cleaner that may leave a residue within a stranded wire bundle, so I would stick to cleaning your binding posts with DeoxIT rather than try to clean the ends of stranded conductor with it. An advisable approach for a stranded bare wire connection is to place the ends into a binding post hole and tighten the nut with a binding post wrench in order to provide a nominal gas-free interface with maximized contact area, and leave it alone thereafter other than occasionally making sure the binding post nuts have not loosened over time. If many wire strands become broken due to high-torque or if obvious oxidation takes place, cut off all of the wire strands and strip the insulation again in order to provide fresh wire strands to place within the binding posts. Otherwise, you might consider a proper termination of the bi-wire jumpers with speaker cable connectors of your choice.
@Duster. The MIT and cardas 101 turned out to be a rather a good combo. If I may ask you another question...would 14awg be ok for a 5 meter run? Have chanced upon a used pair (diff brand) that I would like to try before I settle down on the one which is closest to what I am seeking in SQ.
Thanks again.
A 5 meter (16 foot) run while not optimum is under the maximum advisable length based on practical guidelines for a 14 AWG speaker cable. However, for a length over 10 feet, I would recommend doubling the cable cross section (11 AWG) by selecting a 4-conductor cable such as the Cardas Crosslink 1S rather than the 2-conductor Cardas 101. Cardas Crosslink 1S would also provide lower inductance when wired cross connected (star quad) instead of that of a twisted pair such as the Cardas 101.
Hi Duster,
What do you think of the Cardas 101 as speaker cable rather than just jumpers. The price is right and I don't see anything wrong with the design. Does it make you low priced recommended speaker cable list?
Dave
I'm familiar with the more expensive 4-conductor Cardas Crosslink 1S, but not the 2-conductor Cardas 101. Based on my good experience of the Crosslink 1S, the lower-cost Cardas 101 bulk length speaker cable is also said to be a musical, smooth sounding design befitting a Cardas product. An 8 foot set of external bi-wire configuration cables (four separate cables) would be just over $200, which is a very low-cost option. How it compares with other low-cost bulk length speaker cable designs is likely very favorable.
Thanks! I am only going to need 3 feet per side and the design looks like it would present a good load to my amp.
Dave
The Cardas 101 bulk speaker cable should be a good match for your vintage Threshold/Spendor combo. I look forward to knowing your impressions after the cables settle into your system.
I will post!
Dave
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