Bybee Technologies Crystal Series Plug-in Speaker Bullets.

I was first introduced to the Bybee Speaker Plug-in Bullets about about 12 years ago (the original versions) by one of my local High End Audio dealers.  After hearing the simply astonishing effect they had on speakers at the dealer's, I purchased a set, plugged them into my speakers, and they have never ceased to amaze since (I recently purchased the current Crystal Series Version).  Stunning improvement in: detail retrieval, ambiance and spatial presentation, vocal and instrumental color, transient and dynamic impact, and harmonic completeness.  The Speaker Bullets will effectively filter out most all of the hash and jitter at the speaker terminals in order to create an extremely blacker background in the music reproduction resulting in all the improvement described above..  No snake-oil here.  These bad boys work, and  are definitely for real.  They act in the same manner, and are just as effective on all speakers, no matter the brand or the price tag.  The Bullets aren't cheap, but they are miracle workers, indeed, and (IMHO) worth every penny.  I'm so glad that I was one of the fortunate few that was in the right place, at the right time, to be exposed to the Bybee Speaker Bullets.  I will never, ever, be without them in my system.                    


And all of this for the mere price of a nice set of speakers. I actually believe that they are effective, but that is pricey.



+1, have been using Bullets on speakers and RCA. Won‘t be without them. Strongest feature is natural, musical flow without astringency and hash. Agree that they are expensive, though

"Stunning improvement in: detail retrieval, ambiance and spatial presentation, vocal and instrumental color, transient and dynamic impact, and harmonic completeness" 

If you have $10K+ speakers and they don't perform with those attributes WITHOUT them, something is wrong.

I agree with @tablejockey. A respectable speaker system should come with these qualities. Keep in mind, he is not saying that these things don’t work. They are merely fixing a problem that is not universal. If your speakers are missing any of these qualities, then have at it. Might be cheaper than getting new speakers. 

’’’...filter out most all of the jitter at the speaker terminals"? What exactly do you mean by "jitter"? Jitter from where and from what?

…no jitter in speakers driven by a power amp or at least none originating there that can be removed

For what it’s worth, the guy who invented this was a respectable, patented physicist. I am not sure I would understand the theory behind this even if he would explain it to me. The product has a thirty day return policy so everyone is free to try it and return if not satisfied. Dr Bybee was no charlatan but it is understood that your mileage may vary. I am not going to wait to understand the technology before I start using the product. I still don’t know how clocks work but I can tell time. 

Gosh.  A couple of connectors flanking some potted gobbledy-gook, for only $3000? From a real physicist? From my standpoint, another don't-need-it audiophool product, but YMMV.

Don't you need 8 of them if your speakers have four post? So double the order!

I haven't tried any of the other less expensive filters options mentioned here, but I'm assuming that they all are most certainly effective to some degree, as is the Bybee product.  If you find a less expensive solution, good for you, go for it!!!  I only have experience with the Bybee Speaker Bullets, and I have been extremely satisfied with them.  Those who believe that there has to be something wrong with your speakers if you use these types of tweaks on them, most assuredly have zero experience with them.  Speaker filters of this type are no different from other  tweaks used on your components, such as, isolation feet, pods, cones, etc.  Same concept.  This is why you set your stock power cords aside and spend so much cash on "Aftermarket power cords," upgraded interconnect, speaker cables, and so on.  They all change (Tweak) the sound of your system to some degree.  I use various tweaks throughout my entire system and they all serve their purpose in the overall improvement in sound quality of my system.  As an over 25 year Audiophile, I'm so glad I was able to personally discover and understand the value and usefulness of various types of tweaks for my audio system.                   

I looked at the Bybee website; these look to be some kind of adapter that sits between your speaker cable and the speaker.  But what are they?  Do they have internal electronics?  Capacitance or resistance?  Some kind of filter?  If you hook these up to a scope is there a difference in the signal waveform?

What kind of "jitter and hash" do they remove?  Not saying they don't work, just that I'm curious what they are doing to the electrical signal.

Like usual, BS of the highest order. It is sad that we fall for this sh-t. It is sadder that these a--holes take advantage of people who do not know better and think they hear a difference which is an illusion. Everyone needs to learn that they are not in control of what they think they hear. Our intellects sit a top a bio electro mechanical device over which we have painfully little control. It does what it was programmed to do in spite of us.

" the retail price of $3,000 (per set of 4), with two sets required for bi-wire loudspeakers."


@mijostyn   😂😂🤣  A-Freaking-Men.  I do my best to ignore the ongoing debate on this site regarding what some consider legitimate products and what others consider "snake oil".  To each their own, and live and let live is the ethos I have tried to live my life by for nearly 60 years.  But even this one makes me chuckle.  $3,000 to $6,000 ON TOP OF THE PRICE PAID FOR SPEAKERS -- absolutely f**king 1st World Problems. 


I mean, what price range of speakers are these "magic bullets" marketing towards -- $25K, $50K, $100K??  It has to be a ridiculously high starting price, otherwise the pricing scale would make even less sense than it already does.  Surely someone doesn't buy $10K speakers and add an extra $3K or $ might as well shop in the $15K to $20K speaker range.


Alas, all I ask is one thing -- to those music lovers buying these "magic bullets", please include me in your Last Will and Testament.  Assuming you have any money left over.



Everyone needs to learn that they are not in control of what they think they hear.


Seems to me that someone needs to learn that some of us don’t want to be in control of what we think we hear.  If I pay for a device that somehow makes me think that I hear what I am looking for, isn’t it worth it?  I want to stay in the Matrix. I am happy in the Matrix. If you are happy in the real world, we should be able to all get along. After all, we both will die one day, me thinking that I heard great music reproduction and you knowing for sure that I didn’t. It’s all vanity and chasing after wind. 

Why is it that buying a $20,000 speaker system is ok but buying a $12,000 one and adding $8,000 worth of tweaks is ridiculous? I can guarantee you that the people buying these gadgets are not pressed for money, most will have money left. So don’t feel sorry for them. If they are wise enough to know how to make money, I am sure they will be wise enough to know what to spend it on and I doubt you will be on their will and testament. 

@spenav -- If you thought I was expressing concern for, or feeling sorry for those individuals purchasing the "Magic Bullet" products, I need to badly refresh, rehone, and polish up my Journalism skills. I could not care any less on what individuals do with their hard-earned (or easily inherited) fortunes.


They can donate it to charity, invest it in the newest and most trendy NFT’s, use it as firewood kindling, purchase every "Magic Bullet" in existence, or wipe their rear ends with it and flush it down the crapper. Every option achieves the same result -- an easy and voluntary way to separate someone from their fortune.


I’m merely suggesting another easy option -- "Brotha can you spare a dime?"

The religious fervour with which some diss products they have not even tried or researched seems to me ‘holy‘ inappropriate. And the language they chose in so doing wholly contemptible…

@spenav , knock yourself out kiddo. Piss your money away on stupidity. Somebody has to support these ............

The less loss firewall purifier appears to work via skin effect, filtering generally 200 kilohertz and above. Referencing Nelson pass' article "speaker cables science or snake oil" using his spectrum analyzer we can see the standing waves on the speaker line. This is a summation of reflected waves due to mismatch impedance. The additions or subtractions of the multiple reflections will impact the leading edge of the waveform and this is what you hear. The more poorly matched the speaker cable the more of a difference this item could make in a high resolution system. Believe me I fully understand the assumptions of snake oil with these applications. However while cable theory will prove their functionality it will also demonstrate the need for adequately engineered cables.