Aurum Cantus G2Si Ribbon Tweeter

Aurum Cantus G2Si Ribbon Tweeter

Brand:| Model: G2SI
Overview
This tweeter utilizes a lightweight, pure aluminum ribbon to provide great high-end extension, exceptional detail, and quick transient response. The G2Si offers the benefits of ribbon technology at the entry-level price point.
Highlights
  • Lower-cost version of G2 tweeter
  • High sensitivity is great for efficient designs
  • Excellent high-frequency extension, can be used as a supertweeter
Part # 
276-400
Weight: 2.68 lbs.  
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Part # 276-400
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Product Details

Aurum Cantus G2Si Ribbon Tweeter

Aurum Cantus is a trusted name when it comes to ribbon tweeters, and leads the industry with its neodymium-driven ribbon technology. Each Aurum Cantus tweeter utilizes a lightweight, pure aluminum diaphragm to provide great high-end extension, exceptional detail, and quick transient response. The Aurum Cantus G2Si offers the benefits of ribbon technology at the entry-level price point.

Specifications: • Power handling: 30 watts RMS/45 watts max • Impedance: 6 ohms • Frequency range: 1,700-40,000 Hz • SPL: 96.0 dB 2.83V/1m • Recommended minimum crossover frequency: 2,500 Hz • Dimensions: Overall diameter: 4-5/16", Cutout diameter: 3-1/4" x 2-3/16", Depth: 3-1/4".



Product Specifications
  • Tweeter TypeRibbon
  • Impedance6 ohms
  • Power Handling (RMS)30 Watts
Aurum Cantus G2Si Ribbon Tweeter
  • BrandAurum Cantus
  • ModelG2SI
  • Part Number276-400
  • UPC844632003219
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (19 Reviews)
  • Weight2.68 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Aurum Cantus G2Si Ribbon Tweeter
Aurum Cantus G2Si Ribbon Tweeter is rated 4.1053 out of 5 by 19.
Rated 4 out of 5 by from Excellent valueAs an entry level ribbon tweeter it performs very well. Crystal clear, fast and detailed. The vertical beaming is annoying, but then all similar ribbons suffer from the same problem. As far as a reference is concerned, I have an electrostatic that I use as a reference and this tweeter comes very close to the electrostatic, much closer than any dome I have tried. I also make mandolins and have recordings of my instruments so can compare to an original acoustic instrument. Mandolins have a lot of high frequency content and are surprisingly difficult to reproduce accurately through a loudspeaker. This tweeter does reproduce the subtle overtones of a mandolin that make each and every instrument sound unique. Most dome tweeters fail.
Date published: 2013-06-30
Rated 5 out of 5 by from Infinity Kappa 8 UpgradeI bought these to replace all the old EMIT K tweeters in my Kappa 8s that were long in the tooth. Spent a few minutes on each one with the dremel to widen the fit. I could not be happier.
Date published: 2012-01-17
Rated 3 out of 5 by from Bought to replace antique Advent tweeterAlthough this ribbon tweeter is excellent, it was only slightly better than the 25 year old advent tweeter it replaced (one Advent of a pair, had blown.)
Date published: 2012-01-27
Rated 5 out of 5 by from Great tweeterI use these crossed over at about 13KHz and they sound wonderful.
Date published: 2011-02-17
Rated 1 out of 5 by from Typical ribbonI see a lot of very subjective positive reviews of ribbons but they just never seem to work for me. The positive reviews are always based on music where there is no reference. Listening to or measuring tones produces much more useful information that will reveal the problems with ribbons. In this case and in most cases for that matter, the problem is that these things go into unstable break up modes causing extraneous spectral contamination randomly. For example here a 15.5 KHz input tone produces about 7.26 KHz, 8.2 KHz, 14.5 KHz and a few higher than the stimulus. A 15.6 KHz input tone is clean other than the normal expected harmonic content. This is the thing, at one frequency ribbon might perform exceptionally and at a slightly different frequency they may produce all kinds of extraneous garbage. I once had a pair of the Dayton ribbons that had no major issues but later orders of the same ribbons were unusable. Ribbons could have advantages if they could solve these problems but right now I'm giving up on ribbons. They just have too many problems! Monte
Date published: 2014-01-22
Rated 5 out of 5 by from I missed my EMITs.If you ever owned an old pair of Infinitys with the EMIT tweeter you know there was never a better ultra high end on a store bought speaker system. Sizzling cymbals seeming to come from above the speakers, and detail you never knew you were missing. These seem a little more directional than the old EMITs but still acceptable. I popped these in my Cerwin Vega E715s to replace the domes they came with, and now I have a high end to match the great bottom. Both drivers are 6 ohm rated, maybe a bit less efficient but not a problem, but you do have to cut the baffle board a little to fit.
Date published: 2011-02-17

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Aurum Cantus G2Si Ribbon Tweeter

Protection when bi-amping

Bi-amping at 3.5kHz/24 dB with nothing between the amp and tweeter. My friend flicked a bias switch on his tube amp causing a pop; the ribbons were shot. When bi-amping, what do you do for circuit protection? Install a big capacitor which defeats the purpose?
Asked by: ribbon
Yeah, that is problematic, I would say ALWAYS put a capacitor in series with a tweeter, your experience being a shining example of why. The standard recommendation for a typical tweeter is a 2nd order high-pass. For more delicate tweeters or tweeters operated too close to their cut-off, then maybe a 3rd-order or higher is required. A woofer will run just fine without protection, maybe a zobel network for impedance correction. But a tweeter must be protected from DC at all costs. There are many factors that go into filter design, it is either a dark art or the per-view of rocket-scientists. But I would look at both your front end and back-end filters and, at the very least, have a capacitor on the back-end of the amp. There is no way around this. I make no guarantees here. It might turn out that you must have a 2nd order on the back end of your amp, at which point you will need to re-design the front end as appropriate.
Answered by: AlonzoTG
Date published: 2013-06-29

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