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RSA SR71b, quad mono balanced. img. 1 & 17 Review pg 32, 34, 68, UPDATED 4/2013 for Improved sound. - Page 74

post #1096 of 1183
Quote:
Originally Posted by refault View Post
 

Is that safe to do? I thought it wasn't that safe to connect a single-ended termination -> balanced adapter due to the lack of grounding. Does going from 1/4'' -> mini-XLR -> ALO/RSA Kobiconn mini-balanced add a DC ground or no?

 

I've been wondering on how to go about attempting to either re-cable or find proper adapters (if at all possible) to use the balanced Kobiconn headphone out for my Grado HP-2s, but idk honestly.

 

Totally safe to do...based on the type of stock cable provided by the manufacturer.  Grado stock cables are fine, and mine was done by Moon Audio so you know its A-OK.

post #1097 of 1183

Hey guys,

 

I was looking into the SR-71B to turn my set-up into a balanced system. RIght now I run SE throughout. I have a question about the inputs for the headphones and DAC. The inputs on the SR-71B don't look like standard inputs and if I'm going to buy it I need to find cables to connect my gear together. I use the Westone 4R and have seen boutique cables at some sites that mention termination for the SR-71B, however I'm not excited about having to shell out $200 for a cable. Are there cheaper options? 

 

I can't find anything on interconnects. My DAC is the Schiit Gungnir.

 

What cables do I need?

 

tldr; I'm a huge noob when it comes to balanced audio. Please help.


Edited by TK277 - 10/28/13 at 10:43am
post #1098 of 1183

Its called a Kobiconn connector, if you can wield a solder iron (pun intended) you can make your own cables rather than spend Xamount on them.

post #1099 of 1183

Thank you sir! That is helpful information. Now I know what I should be looking for.

post #1100 of 1183
Quote:
Originally Posted by TK277 View Post
 

Thank you sir! That is helpful information. Now I know what I should be looking for.

ted's headfood at headphonelounge can reterminate your cable to kobbiconn, he has done a few for me, excellent work. balanced imo is the way to go. his prices are super reasonable too

post #1101 of 1183

Hmm. I've read mixed things about this interconnect method...if it was a traditional input I'd be all over it. I was hoping this could be an easy way to turn my SE system into a balanced system, but for $650+ for the amp (w/ shipping), shipping and cost of the W4R cable, and finding someone to make a cable or buying a mini-XLR cable and RSA adapter looks like it'd be $300 easy, inflating the entire cost around $1,000. For that I could get a balanced W4R cable, interconnects from BJC, and a Schiit Mjolnir. Aaaand if the Schiit Mjolnir played nice with IEMs, that would be my route... or just upgrade to Westone customs (ES5). Guess I'll just stay SE for now lol. 


Edited by TK277 - 10/28/13 at 8:23pm
post #1102 of 1183
Quote:
Originally Posted by TK277 View Post
 

Hmm. I've read mixed things about this interconnect method...if it was a traditional input I'd be all over it. I was hoping this could be an easy way to turn my SE system into a balanced system, but for $650+ for the amp (w/ shipping), shipping and cost of the W4R cable, and finding someone to make a cable or buying a mini-XLR cable and RSA adapter looks like it'd be $300 easy, inflating the entire cost around $1,000. For that I could get a balanced W4R cable, interconnects from BJC, and a Schiit Mjolnir. Aaaand if the Schiit Mjolnir played nice with IEMs, that would be my route... or just upgrade to Westone customs (ES5). Guess I'll just stay SE for now lol. 

 

 

well that is the way the game is played. its always one step ahead of you.

 

those prices are a bit inflated i had A hirose to rsa male made for 20.00 i think thats reasonable (i did provide the kobbiconn male plug and the toxic silver poison wire), i had my toxic silver poison cable reterminated to rsa male for 20.00, i had a female rsa to male hirose made for 50.00 with silver/gold wires.

 

its up to you in the end. i have well over 2k worth of interconnects,dacs,daps,amps,iem's  everything works nicely together. the w4r are very capable so they keep me at bay from customs. i thought about customs. but then i also thought about maybe the shure 846, or tralucent 1 plus 2 something universal...but the w4r are quite good imo, i dont think they will be leaving my collection, maybe i will just add to the collection lol

post #1103 of 1183
Quote:
Originally Posted by Mooses9 View Post
 

ted's headfood at headphonelounge can reterminate your cable to kobbiconn, he has done a few for me, excellent work. balanced imo is the way to go. his prices are super reasonable too

Good to know 

post #1104 of 1183

out of curiosity what are your guy's charging times from a drain battery to green light on charger?

post #1105 of 1183
Quote:
Originally Posted by Mooses9 View Post
 

out of curiosity what are your guy's charging times from a drain battery to green light on charger?

 

It takes around 2 hours for mine. For both the 71b and intruder. 

post #1106 of 1183

And what is the battery life like?

Do you use is with a portable DAC or directly plugged to your source?

post #1107 of 1183
Quote:
Originally Posted by zitounesup View Post
 

And what is the battery life like?

Do you use is with a portable DAC or directly plugged to your source?

 

I mainly use it with my iMods so i can't say about using a solo dac, but i get around 14-15 hours easily.  

post #1108 of 1183
Quote:
Originally Posted by jerein View Post
 

 

It takes around 2 hours for mine. For both the 71b and intruder. 

that is what i was getting, i was kinda confused as it only take 2 hours for full charge but then takes alot longer to drain the battery. must be some kind of circuitry boost or something for charghing.

post #1109 of 1183
Thread Starter 
Quote:
Originally Posted by Mooses9 View Post
 

that is what i was getting, i was kinda confused as it only take 2 hours for full charge but then takes alot longer to drain the battery. must be some kind of circuitry boost or something for charghing.

That doesn't really make sense. You can charge a battery for how it is set up to be charged. If it takes 2 hours to charge a 2 amp battery but you only use 100mA per hour then it will last around 20 hours. Charge and discharge are not related. 

post #1110 of 1183
Quote:
Originally Posted by jamato8 View Post
 

That doesn't really make sense. You can charge a battery for how it is set up to be charged. If it takes 2 hours to charge a 2 amp battery but you only use 100mA per hour then it will last around 20 hours. Charge and discharge are not related. 

yeah that makes sense

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Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › RSA SR71b, quad mono balanced. img. 1 & 17 Review pg 32, 34, 68, UPDATED 4/2013 for Improved sound.