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The RSA Protector balanced portable: Images and impressions 1st page, Please post your impressions . . - Page 53

post #781 of 837


Originally Posted by cooperpwc View Post

No. Metal case does not equal shielding.

Can you explain why?  This is the reason why I think metal casing shields.

http://en.wikipedia.org/wiki/Faraday_cage  I hope you don't disagree with Farady.

Edited by High_Q - 5/21/10 at 2:41pm
post #782 of 837

There is a product out there that shields. I haven't tried it yet but have it on order. Not just any metal enclosure will do. From your article..

The effectiveness of a Faraday cage or shield is dependent upon the wavelength of the electric or electromagnetic fields it is intended to shield. Effectiveness of shielding also depends upon the types of metals used in the cages as well as their thicknesses.
post #783 of 837

(BTW quite an interesting article!)

post #784 of 837

Yeah, but for RF waves, it should be sufficient. They are talking about the extremes of the EM spectrum(very high frequencies). 

Edited by High_Q - 5/21/10 at 3:47pm
post #785 of 837

Just got cables from Moon Audio for my HD650s w/ the protector plug.


Comparing ZeroDAC -> Balanced Protector to ZeroDAC/AMP HP out w/ stock cables, to me the balanced out seems to have a wider soundstage, at the expense of some of the 'dark' color that I feel HD650s have.  In a way it's admitting that these cables/amps really do aid in revealing the source, but I can't say that it really matches my tastes.  Since a lot of the stuff I listen to are poorly recorded, having that veil lifted apparently doesn't do you any good.


I'm sure my ears could acclimate ('burn in' if you will) itself to the new sound, but that does seem a lot like forcing myself to like it after all the money spent.  Guess I'll have to think about it over this weekend.

post #786 of 837

Finally got my E-Series cable terminated in protector balanced end from SAA.  iPod Touch 3g > Whiplash TWaG LOD > Protector > balanced E-Series > ED 8


Burning in right now.... so far so good :)


will post review after few hundred hours of burn in!

Edited by DC5Zilla - 5/29/10 at 11:37pm
post #787 of 837

I use balanced Sennheiser HD650 with the amp set to high gain. I have to turn the level to at leat  2 clock depending on the music.

post #788 of 837

anyone knows if the white protector gets dirty easily?

post #789 of 837
Thread Starter 

I have a white Predator, which would be the same finish and if it does get anything on it, it cleans right off but I have never had a real problem with it getting dirty, even when hauling it around. 

post #790 of 837

thanks! great was thinking to get white or black..

post #791 of 837

I wrote a little piece on my blog on the Protector since I've got one on loan for a bit. Thought you guys might be interested.



I had the opportunity to borrow a Ray Samuels Audio “The Protector” headphone amp, and I thought I could say a few things before returning it.
The amp has the same great build as always from Ray. The size is the same as the Predator. It has an unbalanced input on the rear, with balanced AND unbalanced headphone outputs on the front. This amp has the ability to split the unbalanced input signal and turn it into a balanced one.
Having a balanced output means that there are ultimately 4 signals, each finally driven with their own amp. Per ear, one of the two signals is 180 degrees out of phase from the other. By doing this, the drivers are both pushed in one direction and pulled in the other. (With unbalanced, the second lead only serves as a ground.) The point of balanced systems is to reduce noise and channel separation by not using a shared ground, and also to improve driver control (DETAIL) by working the speakers from both directions.
My test system is the HeadRoom Ultra Micro DAC feeding the Protector with the balanced Whiplash Audio TWag IEM cable I was also lent. Now, I went into this thinking that I might not even hear the difference or feel that it was a difficult one to pick out. It took about a minute of listening for me to realize the difference, and a quick switch back to my unbalanced TWag and ALO Rx amp confirmed it. Further flipping through different recordings and genres drove it home.
Versus the unbalanced output of my Rx, the balanced output of the Protector brings my JH13′s an absolutely dead silent background, an improved soundstage, and improved detail! Since I’m extremely picky about hiss, I would say the Rx has a barely audible hiss. The Protector has an absolutely black background. Channel pans and effects seem even more vivd somehow. The biggest thing to notice, though, is the gobs of detail with everything! The Rx is no slouch here at all, but with the Protector, instruments like the violin, clarinet, and cymbals have amazing realism. Up close, well-recorded voices and instruments are especially eerie because of how real they sound. I haven’t really tried, but I bet the benefits of high resolution files become more apparent with detail like this. Hearing some of my dnbradio.com set in 128kbps mp3 was a laughable experience. I could hear all those mp3 artifacts clear as day.
As I wait for my JH3A, I really wanted to take a moment to see what improvements the Protector brought. I resisted the Protector because I knew an amp with a balanced INPUT or something would supersede it. Well, I was right, but it turned out to be something unexpected. The active crossover of the JH3A should bring very real improvements considerably above and beyond the Protector, and my wait should be nearly over.
Let me give a big thank you to Jude of Head-Fi.org for letting me borrow the amp and cable!
And for a little disclaimer, I did build Ray’s website for him and think he’s a great guy and amp manufacturer, but I do not let these things color my judgements of this product review or any other.
Protector Rig

Edited by thread - 9/7/10 at 9:56am
post #792 of 837

great read

post #793 of 837
Thread Starter 

Listening balanced that sounds as big as the sunset here from my back porch. 





Click on image if you want to see a larger size. 

Edited by jamato8 - 10/1/10 at 9:30pm
post #794 of 837

That is spectacular.

post #795 of 837

Amazing view

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Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › The RSA Protector balanced portable: Images and impressions 1st page, Please post your impressions . .