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TAD Speakers & Electronics Technical Audio Devices Laboratories |
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#1
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TAD R1s and CR1s: Jumper to bottom or top???
I've had extremely good results attaching my speaker cables to the top-end binding posts of my R1s and "jumpering down" to the bottom-end/bass binding posts. Admittedly, this was how I always 'found it worked best' with my choices of cables and custom jumpers with various speakers; I've not tried the other option.
Any R1 and CR1 owners out there that have found one way or the other work best, or assuming after-market jumpers equal/equivalent/matching whatever speaker cable is used, does either jumpering up or down give the same result? Note: I'm looking for what attributes are better (if any) above and beyond simply saying that one of the other is 'better'. Thank you! |
#2
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Just to throw you a curve, I'd suggest you consider the diagonal connection scheme as recommended by Nordost as well as some other cable companies. It's explained in their bi-wiring jumper connection guide, and is found by many to provide the best sonic performance. While any of the connection schemes appear at first glance to be equivalent from an electrical perspective, there are differences in the symmetry of the signal path between them. Nordost finds that it "often becomes the new default set up, offering greater air, transparency, dimensionality and subtlety." If you try it please let us know your thoughts, since your system would definitely be up to revealing these differences. Hope this helps!
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#3
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#4
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TAD R1s and CR1s: Jumper to bottom or top???
Bill, just to be sure I understand what I read in the link, the optimum set up is black to black and red to red on the jumpers, but one red to red on tweeter and one black to black on the woofer for the main speaker cable?
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#5
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Sounds like you've got it right. Be sure to only connect the same polarity binding posts with each jumper (red to red, black to black)! Then you connect your speaker cables still matching proper polarities (red to red, black to black) but one to the upper and one to the lower binding post. You are correct that AQ also recommends the diagonal connections but with the reverse diagonal connection of the speaker wires. Don't connect any wires across polarities, stick with matching the color connections for all wires and you'll be fine. Of course do this at your own risk, all standard disclaimers apply! It's a bit more complicated in Nordost's explanation since their jumpers are directional, so they also indicate the proper direction for their connection.
Last edited by audio bill; 04-05-2017 at 11:07 AM. |
#6
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I was adviced by a R1 friend owner that it sounds better connecting it from top to bottom.
On my CR1's, maybe because it is less sensitive, sounds better from bottom to top. Just my experience. |
#7
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Another curve - after extensive testing, my very best result was two pairs of speaker cables. Of course, that doubles the cost, but it gave added body and oomph to the bass as to sufficiently remove any thought of a sub woofer (I have the CR-1s) and tightened up the highs without making them brittle. It was like a new set of speakers.
I had tried multiple jumpers and jumper configurations and this was the one that worked for me. All standard and non-standard disclaimers apply. YMMV. |
#8
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https://www.audioaficionado.org/atta...9&d=1500455677 https://www.audioaficionado.org/atta...9&d=1500455677 This improved the already impressive bass and sub-bass performance of the R1s with even better articulation/all other aspects. It also has had the side effect of improving the mids and treble behavior of a speaker beyond even what I had been experiencing to-date. I have not brought myself yet to try the 'diagonal' methods of jumpering again; there is something about effectively partially reversing polarity on the speaker that is causing me to shy away from this (for now). |
#9
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Just as a point of clarification regarding either diagonal jumper connection method, there is absolutely no reversal of polarities connected - not effectively or partially. Positive speaker wire connection is still only made and jumpered to the other positive speaker terminal, and likewise for the negative connections. The diagonal jumper connection schemes only alter which terminal is directly connected to (one to the upper and one to the lower) and then the corresponding direction of the jumper if your jumpers are considered directional. There is no cross wiring between any connection polarities and it would be a real problem if there was.
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#10
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Absolutely correct that what's best varies system to system. You also should realize that by using two sets of speaker cables (assuming they're identical) you're effectively doubling the conductor area which can also impact the sound. Different speakers vary as to whether they work best with doubled up cables or various jumper configurations, mostly due to impedance differences and crossover complexity of their designs.
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