CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

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Author Topic: Portable amps  (Read 81366 times)

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Cos

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Re: Portable amps
« Reply #480 on: August 19, 2015, 11:03:15 PM »
Quote from: Anaxilus on August 19, 2015, 10:45:12 PM
Forget if I heard it or not at a meet. If I did, that should tell you something.

Just what I figured. Thanks!
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Armaegis

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Re: Portable amps
« Reply #481 on: August 20, 2015, 12:06:55 AM »
Yeah back in the days when battery dac/amps were all the rage, when the main players were iBasso, RSA, the Headamp Pico family, Meier's #Move, etc. I remember the XM6 was featured on one of the very first headfi videos, so it had a good surge in popularity right after that. It doesn't come up on the used market very often though.
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin

Luckbad

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Re: Portable amps
« Reply #482 on: August 23, 2015, 07:47:26 PM »
Anyone else have a Vorzuge? I have the VorzAMP Duo and it's quite good for a portable amp. I don't actually need it to be portable, though. I'll probably try to sell it since I have a Liquid Carbon coming now.
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Mrip

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Re: Portable amps
« Reply #483 on: August 25, 2015, 07:59:26 PM »
Anyone try the Noble BTS Bluetooth adapter? I just received a BTS today and, well, I'm going to reserve judgment until I know it's fully charged.
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burnspbesq

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Re: Portable amps
« Reply #484 on: August 25, 2015, 09:34:14 PM »
Quote from: Mrip on August 25, 2015, 07:59:26 PM
Anyone try the Noble BTS Bluetooth adapter? I just received a BTS today and, well, I'm going to reserve judgment until I know it's fully charged.

Yup. Totally happy with it. For what it is and what it costs, I'm not aware of anything that comes close.
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aufmerksam

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Re: Portable amps
« Reply #485 on: August 25, 2015, 09:46:19 PM »
burns, what do you use it with? can it drive UERM to satisfaction? ER4?
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Mrip

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Re: Portable amps
« Reply #486 on: August 25, 2015, 10:50:17 PM »
After charging it for a couple hours, and also trying it while connected to usb power, with my UE18s, someone on hf said it best - It sounds like the bass drivers stopped working. It's not subtle. Bass is just gone. Maybe I got a bad egg. The audio also stutters for maybe 20-25 sec after the bt connection is made.

To be fair, Noble support suggested I charge it for 12 hours to be sure it's not a power issue, but it sounds the same even when plugged in.
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burnspbesq

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Re: Portable amps
« Reply #487 on: August 26, 2015, 12:28:36 AM »
Quote from: aufmerksam on August 25, 2015, 09:46:19 PM
burns, what do you use it with? can it drive UERM to satisfaction? ER4?

Noble PR mostly, but have also tried it briefly with UERM. Loud enough for the gym, but won't deliver ear-bleeding volume. There are times that I wouldn't mind another 2 dB.

Lack of bass? That's not a BTS issue, that's an inherent limitation of Bluetooth. And check your insertion depth and seal.

The stuttering appears to be variable, based on what's at the other end of the connection. I get it bad with AK Jr., but hardly at all with iOs devices.
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jjacq

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Re: Portable amps
« Reply #488 on: August 31, 2015, 04:17:54 PM »
I am considering the ALO RX MK3 but can anyone tell me if there are different versions of it? Also how much different is the MK3+?
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ericfarrell85

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Re: Portable amps
« Reply #489 on: August 31, 2015, 06:27:40 PM »
Quote from: jjacq on August 31, 2015, 04:17:54 PM
I am considering the ALO RX MK3 but can anyone tell me if there are different versions of it? Also how much different is the MK3+?

Bear in mind the MK3 is very noisy with iem's. Even after I requested attenuation. I have the original Mk3 and don't know if followig iterations fixed this issue. Great amp otherwise, very balsy.

Noisy with following
UERM
Westone ES5
UM Miracles
AD2000
Various Grados

No noise:
LCD Series
HD800
HE500/6

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