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Hisoundaudio ROCOO BA - Superior Hi-Fi player for Ciem's & Iem's - Page 30

post #436 of 632
Quote:
Originally Posted by H20Fidelity View Post

Here's the specs, I do not know sorry, maybe Lee does.

Specifications:
Earphone amplifier grade: Hisound's proprietory HiFi amplifier
Frequency Response: 12Hz-23kHz
Sensitivity (dB): 105dB (earphone )
Impedance: 32 ohm earphone (earphone )
Power-Handling: 50mW peak / 5mW rated (earphone)
S/N: 96dB
Memory capacity: 4Gb expanding SD card slot
Card Compatibility: Micro SD, SDHC (Up to 32Gb)
Battery capacity: 600Ma rechargeable Li-ion battery
Battery continually playing time: > 10hours ( volume set at 3 degree)
Proprietary Pover saving technology: EMA Techonology (Energy Management and Admeasurement Technology)
The analog signal output: HDMS circuit design, which can supply the high quality music sources to the external earphone amplifier or home amplifier.
Compatible formats:MP3, WMA, WAV, Flac, AAC, OGG
Screen: 1 inch OLED
Color available: Brushed black
UI Operation: Mechanical key button operation ( one-hand and blind operation capability)
USB type: Mini USB 2.0
Dimension: 81.85mm L x 50mm W x 15.65mm D
Weight: 80g


It's fairly powerful though, I cannot go past 25/31 comfortably and I am used to amping and using pretty high volume levels. Most of all my IEM's feel very well supported.

I'm not sure if this is for everyone but the site layout has gone very strange here at the moment.

 

What would the ipod be rated at then per channel. I think that would satisfy the above question in that event.
post #437 of 632
Quote:
Originally Posted by lee730 View Post

What would the ipod be rated at then per channel. I think that would satisfy the above question in that event.

From a few quick searches and possibly incorrect answers a total of 30mW? Don't know what load it would be under though.

It's just a rough source.

http://www.head-fi.org/t/355535/ipod-classic-6g-output-power

Having owned a few players like the Cowon C2 which puts out around 29mW per channel, I would guess BA is 50mW per channel. Trusting only my ears that is.

Edit: Here is a post I was asking Jack about the N1, and he says N1 would be twice as powerful as the Cowon C2's 29mW+29mW. So I'm leaning much more towards 50mW+50mW for the BA.

http://www.head-fi.org/t/629679/edit-hisound-audio-to-release-new-dap-product-line-nova-with-micro-sd-card-support/75#post_8752453
Edited by H20Fidelity - 3/6/13 at 6:45pm
post #438 of 632

Well that does make sense then. There would be no reason for them to say 55mW of output power otherwise by counting both channels lol. :P All I know it in terms of volume it is significantly louder than my iphone4. Sitting around volume 13 would be slightly more than half the iphone4s volume and the BA goes up to 31 :P.
 

post #439 of 632
Raw naked power, surging through the cables.

post #440 of 632
Quote:
Originally Posted by Blackfear View Post

Hi my rocoo ba is dead, on screen after ON is message repair and format, but nothing helps me, reset didnt work, new firmawe too, problem is that
rocoo inner drive(memory) is not detected by PC only you can see drive but with 0 bytes but dont have any access to it, charge is full,
when i tried to load new firmware (methods here on forum with FW files) and check "full media erase" and format data area nothing happened, only message locking and close (in FW i can see that 0 bytes of memory is available), so
it is clear that his inner memory is not available and that is big problem and then you cant do anything with it, in windows i tried everything
to get access to his memory but nothing, i read that some users here have or had this problem (same with cube c3, rocoo ba,p, nad studio v) but dont know if somebody resloved it,
i think that rocoo is destroyed and nothing can hlep me if i wrong please help me :-o
I also encountered the same problem and jack told me it had to be sent to china for repair.
post #441 of 632
Does anyone know the output impedance of Rocco BA?
post #442 of 632

I don't think it's been measured but most of the new HiSound stuff is around or below 2 ohms. Not really a great answer but all I got.

post #443 of 632
Quote:
Originally Posted by goodvibes View Post

I don't think it's been measured but most of the new HiSound stuff is around or below 2 ohms. Not really a great answer but all I got.

Thanks for telling me what you can goodvibes. My RDB+ V1 (or what ever name it is tongue.gif) respond well to the BA, though I'm not sure my TF10 are sounding up to speed, I was wondering if the output impedance could be causing this mis-match / bad synergy. The RDB+ however pair wonderfully, they're the reason I bought the BA, and they sure impress, also a pair of Brainwavs B2 sound overly decent. Just the TF10 don't seem to react properly.
post #444 of 632

Mine sadly developed a stiff button and sent it for repair, after 1 month it came back to me and the problem is still there. Slightly annoyed at this but the sound quality makes up for it. I dont think I will bother sending it back again, I just need to get used to it!


Edited by audionewbi - 3/18/13 at 1:52am
post #445 of 632
Quote:
Originally Posted by audionewbi View Post

Mine sadly developed a stiff button and send it for repair, after 1 month it came back to me and the problem is still there. Slightly annoyed at this but the sound quality makes up for it. I dont think I will bother sending it back again, I just need to get to used to it!

Are you willing to risk opening it up and have a look? Maybe you can do a home operation
post #446 of 632
Quote:
Originally Posted by H20Fidelity View Post


Are you willing to risk opening it up and have a look? Maybe you can do a home operation

It I know how to open the back I would. I am assuming the back plate is glued in right? I do have a heat gun but I dont want risk heating the solders inside.

post #447 of 632
Quote:
Originally Posted by audionewbi View Post

It I know how to open the back I would. I am assuming the back plate is glued in right? I do have a heat gun but I dont want risk heating the solders inside.

I do not know, but I think Lee does, he had to open his Studio V once, I doubt you would heat the solder. Could possibly be even done with a hair dryer. I'd find out from Lee or another member how to open it and see what can be done.
post #448 of 632

You can peel off the plastic backing and gain access to 4 screws and take off the back cover. The reason the buttons may be too tight is the screws holding the board in place may be too tight. Give it a try if you want and it may fix the issue.
 

post #449 of 632
Quote:
Originally Posted by H20Fidelity View Post


Thanks for telling me what you can goodvibes. My RDB+ V1 (or what ever name it is tongue.gif) respond well to the BA, though I'm not sure my TF10 are sounding up to speed, I was wondering if the output impedance could be causing this mis-match / bad synergy. The RDB+ however pair wonderfully, they're the reason I bought the BA, and they sure impress, also a pair of Brainwavs B2 sound overly decent. Just the TF10 don't seem to react properly.

Tough load. Even at 2 ohms, they will lose some amplitude above 5K. If they sound too mid recessed, they are actually being driven well and better than what you've used in the past.

 

post #450 of 632
Quote:
Originally Posted by goodvibes View Post

Tough load. Even at 2 ohms, they will lose some amplitude above 5K. If they sound too mid recessed, they are actually being driven well and better than what you've used in the past.

 

 



lmao. They sounded like crap on my Studio V (worse) but they also sounded like crap on my DX100 lol.


Edited by lee730 - 3/18/13 at 11:22am
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