Fiio amps?

[geob]

Here is the link to the Manufacturer Who are:
Guangzhou FiiO Electronics Technology Ltd.

FiiO Electronic Technology-www.fiio.com.cn

[GN85]

Originally Posted by geob

Here is the link to the Manufacturer Who are:
Guangzhou FiiO Electronics Technology Ltd.

FiiO Electronic Technology-www.fiio.com.cn

And there's a link there leading back to this thread.

[tjumper78]

ohhh~! if fiio does give more bass to the sound, i think it can be very nice to use with my car stereo.
i'm gonna try this thing my acura's audio system's (bose system without an amp or subwoofer) bass is pretty weak.
ipod -> female lod -> mini-mini cable -> fiio -> mini-mini cable -> car audio.
let me go find a fiio on ebay now.

edit: why the heck is thing 30 bucks now? $25 + $5 shipping. think i'll wait until i can find one for under 15.

[richierich]

I think on US eBay it's $30 but on other countries' eBay it's cheaper.

[geob]

Here is the Frequency response curve for the E3 based on information information on located at

Fiio E3 Frequency Responce - Studioalleyªº*Ó¤HªÅ¶¡ - DCHomer Blog - powered by X-Space

You need to add +3 dB to the figures supplied to reference the figures on the web link to 0 dB.

You will notice that in the area that most headphones start to drop off in their sensitivity the E3 provides a boost

[Henmyr]

I've been experiencing rather large "pops" when inserting my headphones in the fiio, and when starting my mp3 player while having the fiio in between. I belive this has something to do with my rechargable batteries, but I'm not sure. They seem to pop less when I have them fully charged.

Anyone got any good suggestions for not getting the loud "pop"?

[nickyboyo]

Use non rechargeable alkaline batteries instead. I found much more hiss present even with fully charged NiMH's

[zephyr90]

will this thing help me driving my alessandro MS-1 properly?
with the ipod, the sound is fine even without an amp, but when using my PC output, it lacks bass. before raising the money to buy an iBasso D2 Boa, i think i'll invest in one of these little bastards if they're worth it...

[GN85]

Originally Posted by Henmyr

I've been experiencing rather large "pops" when inserting my headphones in the fiio, and when starting my mp3 player while having the fiio in between. I belive this has something to do with my rechargable batteries, but I'm not sure. They seem to pop less when I have them fully charged.

Anyone got any good suggestions for not getting the loud "pop"?

This is happened to me too, with regular alkaline batteries. I guess a solution would be to plug the phones into the fiiO before putting them over your ears.

[Henmyr]

Originally Posted by GN85

This is happened to me too, with regular alkaline batteries. I guess a solution would be to plug the phones into the fiiO before putting them over your ears.

It's mostly the headphones I'm afraid of damaging. Don't know how dangerous it is, but it surely does not sound healthy for them.

[yeahx]

Could I use one of these FiiO amps and a LOD with headphones that have a volume control on the cord?

[4saken]

Originally Posted by yeahx

Could I use one of these FiiO amps and a LOD with headphones that have a volume control on the cord?

I see no problem with that. The quality you get from it is uncertain though.

[geob]

RE : Hiss in The E3
The specified signal to noise ratio is greater than 90 dB. To put that in perspective my Onkyo home theater Receiver has a S/N of 100 dB and it's noise is too quiet to hear.
Twenty five years of repairing Industrial Instrumentation taught me a few things.

1. First break the amplification chain in half. Take your E3 Amplifier and power it up by plugging your headphones in but with the input cable unplugged.

2. No hiss. The noise is coming from your music source.

3. Hiss Look to your batteries. Rechargeable batteries have a limited number of charge cycles and different types require different charging methods. They may not be charging to full voltage levels. NICAD need to be flattened as they have memory. Lithium based batteries like to be charged at about 80% discharge and have no memory but only last for 300 or so discharge/charge cycles.
So replace the battery with a brand new alkaline.
Still hissing try another set of headphones.
By this stage I doubt very much that you will have any hiss and will have proved that the problem lies with the input signal and all the amplifier is doing is its job of amplifying the input signal which has noise that you were previously not aware of.

The next biggest area of problems are always to do with the mechanical components such as switches, plugs and sockets.

The least likely area of failure is electronic. When electronics fail they usually fail completely. You won't find a half working diode for example.

When I try my E3 with my Sennheiser Headphones and no input signal I can't hear a thing. But I am an old fella and my hearing starts to taper off at 10 to 12,000 Hz.

If you want to see how good your hearing and headphones are go to :Equal loudness contours and audiometry - Test your own hearing
but be careful as you can produce sound levels which will damage your hearing.

Cheers

[tjumper78]

i won and paid for one on 6/25. no shipping confirmation. sent a message, no reply. *sadface*
think they'd have a problem with an american buyer purchasing it from ebay.uk??

[nickyboyo]

I'm sure it will turn up eventually. I bought ine from ebay.uk and i live in Australia. They are shipped from Hong Kong, just sit tight bud