How much difference could a simple Banana plug make?


Well - I've tried several different types of Banana connector over the past 8-10 years and although there were subtle improvements from one plug to another, there was never any "remarkable" improvements.

That was - until yesterday !

My - how things changed :-)

If you search the forums, you'll find several posts and reviews by me touting the benefits attained by using products from KLE Innovations. I like them a lot and consider them among the best products in the market.

The  KLEI™Classic Harmony Banana Connector/Adaptor is not just "another Banana Plug"

https://kleinnovations.com/kle-innovations-klei-products/klei-harmony-banana/klei-classic-harmony-ba...

To start with, it is designed to be multi functional - you can use it as...
- A single Banana Connector
- A stack-able Bananas Connector - e.g. it allows you to easily attach jumpers  when connecting a single cable to a bi-wired speaker 
- A Banana Adapter - e.g. as a temporary connection of bi-wired cables to a single wire speaker i.e. without leaving one set not connected.

There may also be other uses that I am yet to discover.

What makes these plug so special
1. they boast an impressive IACS conductivity rating >101%  - that's impressive for a copper product
2. they are engineered to allow another banana plug to be inserted into the insulated housing
3. they have perfectly round spring pins - most spring pins are not completely round
4. they fit into all of the banana terminals I have tried with an unforced "snugness" that grips the speaker and amp terminals securely.
5. they are dead simple to connect using solder
6. removal is also very easy if you want to try them on a different cables

KLE Innovators state they can be crimped, but that's not something I would personally try - perhaps that have a special crimping tool?

So how did this unassuming looking little banana improve sound quality ?...
1. the most noticeable improvement was the width and depth of the image - much bigger than my room
2. overall clarity was front and center and added some nice "sparkle" in the high end
3. instrument placement and isolation within the image was improved
4. The dynamics were noticeably faster.
5. additional texture in bass lines were very nicely reproduced

I think the best genre of music that shows off the full capability of these bananas is classical - even my worst recording sounded very spacious and allowed be to discern the distinct boundaries of first/second viollins, violas, cellos and double bass sections within the orchestra and the added depth placed brass, woodwind and percussion in equally isolated spaces front to back within the image

"Is This Love", by Bob Marley was cavernous and sounded like it was being performed in a stadium!

These connectors also excel in allowing micro details such as subtle venue reverberations and reflections to be more noticeable than with any other banana connector I have used in the past.

If the speaker cables in your system utilizes a more standard Banana plug -  I'd highly recommend replacing them with the KLEI Bananas.

Cost is $135 Aussie Dollars (about $100 US)

What did I use before these?

The most recent was a spring connector from ebay like this
https://www.ebay.ca/itm/4x-Acoustic-Copper-Silver-Plated-APS5-Speaker-Cable-Banana-Plug-Connector/30...

Other "named" products included Spring Banana plugs from Neotech and a pure copper connector from Furez - none of which performed to the level of this plug

There are not many products that improve sound this much for $100 - go on - give em a try!

Back to the tunes :-)

Steve
williewonka
@lak  - It would appear you have been far more adventurous than myself.

@yping I have tried a few but have always kept away from the high priced plugs because they do not offer anything outstanding from a specification/engineering aspect that leads me to believe  they will make a difference.- 

e.g. many of the high end plugs seem to use materials and/or plating  which is not as good as silver plated copper i.e. from a conductivity perspective. Those with pure copper pins plate them with a metal I believe impedes good conductivity, so I have never tried them. I did try Feruz Bananas (silver plated pur copper), which were exceptional.. Prior to that I had tried a few srping style Bananas from Neotec and a couple of other lessor known companies and found them to be no better than the budget brass connectors I purchased from a local store.

I'm also not a fan of the lockable kind, because they tend to have a looser fitting and that could lead to micro arching - so those never got selected.

After trying the Feruz, which were exceptional, I stopped looking, but then came the KLE Innovations bananas which proved to be the best I have tried.

My biggest problem with the high end plugs is their cost and something as simple as a banana - the furutech are $160US for 2 sets of 4 - not something I'm prepared to spend.
The Oyaide are even more expensive and are made from Phospher Bronze which is way down on the conductivity table.

Feruz products provide  exceptional sound quality, but are on the fragile side, but I think the engineering on the KLE Innovations bananas is the best I have seen and it is reflected in the sound quality.

Hope that provides some useful insight - Steve

 
These bananas are amazing. I received them and simply inserted them onto the existing bananas (as an adapter) and right from the very beginning the sound was better. Letting them settle and burnin, by just playing music (about 70 hours so far), the sound got even better. The improved sound I have been listening to, is noticeably better...
- upper bass and lower mid weight and resolution
- articulation, resolution, and clarity
- leading edge attack, speed, excellent PRaF
- harmonic texture

The KLE Innovations classic harmony bananas are very easy to use and, imo, excellent bang for buck. Quite amazing actually.
@yping I'm glad that you like the KLE Innovations classic harmony bananas, it's always nice to have others confirm ones thinking.

@williewonka thanks for your original post that opened my eyes to this fine product!

Happy New Years to all...
@williewonka & @lak from what I am hearing, and enjoying very much, I am finding the KLE Bananas to be a no brainer. The sound was already musical but it is now really, really, musical, if that makes sense. I am enjoying them so much as an adapter that I am happy to take my time changing the bananas that are already on the SCs. Actually, I may just leave them as they are as I not feeling in any hurry to change them. HNY to all