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The RSA Protector balanced portable: Images and impressions 1st page, Please post your... - Page 27

post #391 of 837
Quote:
Originally Posted by hvu View Post
I was listening for like 8 hrs yesterday with balanced HD650 and I was very happy on low setting.
There is no way the Protector can be pushing balanced HD650s on the low setting. I tried it with my Grado RS-1s and on medium it was somewhat straining.
post #392 of 837
Well, mine showed up about 15-20 minutes ago. Doesn't look like my cable stuffs will make it today - I don't know if USPS is still doing Saturday delivery, but it shipped Priority Mail so hopefully they will be here tomorrow if they do.

Of course, I couldn't help but give it a quick listen. First impression: sounds pretty good with my HD580. Turn up the volume and second impression: hmmm... I hope this is just the battery being about dead. I was getting a lot of distortion all over the place. So it's charging now and we'll see how it sounds on a full battery. There's no mention of how long it takes to charge the battery, if it's "ok" to listen to the Protector while it's charging, or if it's ok to leave it on the charger all the time in the documentation that comes with it. I'm thinking about mailing Ray to find out, but I'm sure he's awfully busy at the moment.

Will post more in the appreciation thread after it finishes charging and it gets some more head time.

EDIT: Okay, it looks like Ray has already addressed the charging issues:

Quote:
Originally Posted by Ray Samuels View Post
There is a RED LED, light, on the charger when charging, it turne GREEN when fully charged. You can keep it on the charger no harm if you so wish. Don't turn it off if you have it connected to the charger as it speeds the burn-in process, if not in use.
Ray Samuels
post #393 of 837
Thread Starter 
I have my HD650's on right now connected via single ended. If I use high gain and turn them up, the 650 do not distort and the sound is painfully loud. I prefer them balanced now but the amp still powers them fine in single ended. I am playing some Grateful Dead with plenty of bass.
post #394 of 837
got mine 2hours ago and spent an hour diyed a temporary balance jack. <_< time to burn in until a proper cable arrive..
post #395 of 837
Quote:
Originally Posted by Jarmel View Post
There is no way the Protector can be pushing balanced HD650s on the low setting. I tried it with my Grado RS-1s and on medium it was somewhat straining.
I dont know how much of a voltage swing you need to meet your personal listening standards but for me I can listen to my HD650 on low or medium setting and be completely happy.
post #396 of 837
Thread Starter 
Yes, it also depends upon the output voltage of the source to the amp but medium for the HD650's unless I want to listen very loud but then my ears ring and that is stupid on my part as these are the only ears I have and I don't want to ruin the frequency response and my hearing in general. :^) What I also like about this amp is that it doesn't make the 650's too warm, which can ruin them. So single ended and of course balanced works fine for me. I do prefer the 650's balanced to the ESW10 JPN. The 650's are just more open sounding and balanced, the 10's do take a step up but they can't match the 650's balanced. They are a nice small quality phone though and I have the semi hard case that makes them a good traveling companion.

Edit: I haven't listened very much to the HD650's single ended on the Protector. Now I wish I hadn't, well I do but they sound excellent. I just assumed that single ended would be it and why push a portable with them. I knew with the voltage swing that balanced wouldn't, or shouldn't be an issue and it isn't but now I am hearing them single ended on this amp and I am truly surprised after extended listening. There are many options with this amp.
post #397 of 837
Got mines around noon and tested in both SE and Balanced mode with my JH13. With SE mode, I'm not that impress, it sounds like Mustang. But Balanced mode, MAN OMG, this is amazing. I never would think this little tiny amp can do this. Now, I have to get this puppy burn in but I'm glad I got on this boat.
post #398 of 837
Just got pics of the 3.5mm -> RSA balanced female adapter that I asked a dude named FraGGleR here to build for me on the cheap, since I'm a cheapass who can't afford the TWag stuff If there's any other stingy bastards out there I'm sure he could do one for you, the price was low and nice

I'm also whipping the guy to do a 4pin XLR -> RSA balanced female adapter so I think he can do other stuff too.


post #399 of 837
Quote:
Originally Posted by jamato8 View Post
I have my HD650's on right now connected via single ended. If I use high gain and turn them up, the 650 do not distort and the sound is painfully loud. I prefer them balanced now but the amp still powers them fine in single ended. I am playing some Grateful Dead with plenty of bass.

jamato8,

You're balanced 650's...are they balanced using the mini connector? I reterminated an IEM last night, but was wondering if there's enough space in the connector for putting in the 650 cable.

Thanks.
post #400 of 837
Thread Starter 
Quote:
Originally Posted by AudioDwebe View Post
jamato8,

You're balanced 650's...are they balanced using the mini connector? I reterminated an IEM last night, but was wondering if there's enough space in the connector for putting in the 650 cable.

Thanks.
Just peal off some of the rubber from around the cable as it is a little large and use some heat shrink. It works fine.
post #401 of 837
Is it possible to reterminate the stock JH13 cable? I untwisted and counted three wires. My guess is if sharing a ground is out of the question then my frugal solution may not work.
post #402 of 837
Quote:
Originally Posted by Suprlite_7 View Post
Is it possible to reterminate the stock JH13 cable? I untwisted and counted three wires. My guess is if sharing a ground is out of the question then my frugal solution may not work.
i reterminated with stock jh13 cables. cutted off above the Y split and cutted the bottom part into 2pieces and soldered them. worked perfectly =)
post #403 of 837
Received mine today, much smaller than expected. I'm pretty happy with that. Now I have to send my earmolds for IEMs tomorrow.
post #404 of 837
So skylab said this little moster can run the HE5's very well, has anyone tried the AKG 701's with it in balanced mode?
post #405 of 837

Impressions from the Addict

I've got about 36 hours of burn-in on my Protector, and I'm using a borrowed 3-pin full-size balanced adapter to burn it in with my HD600 using a borrowed SAA Equinox cable from Seamaster (which I will return next week once my TWag 4-pin XLR adapter arrives Monday).

I have refrained from listening to anything but the HD600 until I have given it a couple of days of burn-in with the HD600. Before I posted comments on a fresh amp with my JH13Pro, I at least wanted to give my comments using the TWag JH13Pro cable that is on its way (shipped Thursday). I am using a DACport 24/96 USB DAC/amp as a preamp to feed the Protector, and I've been listening to some 24/96 downloads of Sara K. and Nancy Bryan on my Macbook Pro.

It sounds very good, even without burn-in. The amp is pretty transparent and uncolored, and just to the warm side of neutral but not dark in any way. Bass is very strong, and highs seem crisp and detailed. The mids are very present and natural, making it good for female vocals. This is not like my Predator where I needed 350 hours to like it, and 800-1000 hours to sing it's praise. It sounds good out of the box and seems to open up quickly without a lot of burn-in. It it really continues to improve over the next 150-200 hours I will be even happier. Until then I am also refraining from comparing the sound to other portable amps.

There seems to be a lot of claims about the protector being a "desktop amp in a portable package, especially in terms of power". It certainly has more power than the DACport that is feeding it, or my D4 in 9v mode. The Protector has plenty of power for the HD600 in medium gain when driving them balanced, but I can turn it up high enough to get clipping in medium or high gain. However, those volume levels are much higher than I would be caught listening to for my pleasure. I'd guess the power levels with balanced HD600 fall above all the other portable amps that I have, but below many desktop amps like my Square Wave XL balanced desktop amp (which is down right now with bad FETs in the 12v Sigma 22 PSU, so not directly compared but going from memory).

After the Protector is burned in I will compare it to other portable and desktop amps, and post more on the power output. In particular, the 3MOVE and Vivid V1 have been my previous most powerful portables for the HD600, and the Nuforce HDP and Sq Wave XL (or ZDT and SAC KH1000) for the HD600 and HE-5. I'll have to compare the other portable amps single ended, but several of the desktop amps are balanced.

Right now I can say the Protector is a very worthwhile purchase, and likely the best portable amp that I can recommend for HD600 listening, even at this early stage (having never heard the Lisa II that others recommend).
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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 . .