I purchased the Shure srh840's as my first good quality headphone about six months ago and absolutely love them. However now I am looking to purchase an amp that would provide significant improvements. My source is an iPod Nano. I was looking at the Fiio e9k because it is discounted a ton on amazon and because it would be powerful enough to power future upgrades if I decided on doing that. The only thing I'm worried about is if it's too much for my current cans. It says it has a gain switch, but also says that the suitable impedance level is 160 to 600 ohms. That being said can I run a 44 ohm headphone through this? Would it break something or give a decrease in sound quality over a less powerful amp? If so, what should I get instead that would be good for now and for future upgrades?
- productBeyerdynamic DT 770 PRO Closed Studio Headphones - 250 Ohmstagged by System, 11/30/12
- productFiiO E09Ktagged by System, 11/30/12
- productFiiO E10tagged by System, 11/30/12
- productFiiO E11tagged by System, 11/30/12
- productHRT iStreamertagged by System, 11/30/12
- productShure SRH840tagged by System, 11/30/12
Related Forum Threads
- Please help a headphone newbie--any help is greatly appreciated Last post on 3/29/13 at 12:47pm in Headphones (full-size)
- Looking for a portable audio amp for the Beyerdynamic DT 770 PRO, 250 ohms Last post on 1/22/13 at 3:27pm in Headphones (full-size)
- Just got a pair of DT 770 Pro 250 Ohm, will my E10 be enough? Last post on 1/10/13 at 7:58am in Headphones (full-size)
- sennheiser 598s vs shure 840 Last post on 11/15/12 at 7:39pm in Headphones (full-size)
- DAC to use with my ipod Last post on 11/6/12 at 6:44am in Portable Headphone Amps
At the time this review was written, the Earsonics S-EM9 was listed for sale on Musicteck’s online store. Here is a link to their listing of the...
HIFIMAN SuperMini review Oct 2016 INTRO Just some background on me with previous experience of daps and why I’ve arrived here at this point in time. ...In a Hi-Fi...
First of all, above any other factor, these are just SO COMFORTABLE!! There are very expensive headphones I used that sound really good but feel like someone is trying to crush my head. These have...
The FiiO A1 is a nice addition to a smartphone setup.It has the potential to save battery power when listening with portable devices. it doesn't extend very well and bass and treble is left...
Introduction Simgot is a new name in Asian audio that is getting some attention with their new EN700 model. Supposedly, some that were involved in tuning the Ostry IEMs have tuned this one, so...
Gear mentioned in this thread:
Using one as I type with my 250ohm DT770 on low gain and it works equally beautifully on my 32ohm K550 and the like.
Edit: My bad fixed to E11 amp.
Edited by Doc-holliday - 11/30/12 at 8:59am
I purchased the Shure srh840's as my first good quality headphone about six months ago and absolutely love them. However now I am looking to purchase an amp that would provide significant improvements. My source is an iPod Nano. I was looking at the Fiio E09k because it is discounted a ton on amazon and because it would be powerful enough to power future upgrades if I decided on doing that. The only thing I'm worried about is if it's too much for my current cans. It says it has a gain switch, but also says that the suitable impedance level is 160 to 600 ohms. That being said can I run a 44-Ohm headphone through this? Would it break something or give a decrease in sound quality over a less powerful amp? If so, what should I get instead that would be good for now and for future upgrades?
You can use the Fiio E09K to drive the SRH-840 and not blow up the diaphragm(s) in the SRH-840, chance are your ears would hurt long before you had the volume high enough to damage the diaphragms.
But chances are you will not see a big improvement with whatever amplifier (for a reasonable price) you put between the SRH-840 and the iPod Nano.
The Fiio E11 ($49.99) portable headphone amplifier and the Fiio L cable would get you about the best possible audio quality your going to get for a reasonable price.
Technically, you would want an amplifier with a low impedance (5.5-Ohms or less) to get the best quality sound from the 44-Ohm SRH-840, the Fiio 9 series has a 10-Ohm impedance, the Fiio E11 has an impedance of .5-Ohm.
You would need to spend $155 for the HRT iStreamer, to bypass the iPod Nano's internal DAC, and the HRT iStreamer is not really a "portable" DAC.
There also might be a better (audio quality wise) mp3 player then the iPod for a reasonable price.
Alright so you're recommending the e11 in addition to the istreamer? or would I just need the istreamer. I don't need my setup to be portable because if I want to go somewhere, I'm not opposed to just plugging straight into the iPod.
If you get the HRT iStreamer, you will not need a Fiio L (LOD) cable to connect the HRT IStreamer to the IPod.
I'm guessing you can directly connect the iStreamer to any Apple LOD port (guessing).
The iStreamer is designed to go between a portable apple device (like iPod & IPhones) and an amplifier.
So you could go Apple>iStreamer>Fiio E11, but the E11 is just one of many headphone amplifiers you could connect to the analog outputs on the iStreamer.
Impedance is resistance, measure in Ohms.
It preferable to have the impedance of the headphones be 8 times or more the impedance of whatever head amp. they are plugged into.
I kind of like the portable amplifiers because they usually come with a very low impedance (like 1-Ohm or less), which you want for low Ohm headphones (like under 50-Ohms).
Desktop amplifiers can get away with with having high impedance, like 10-Ohms, which is fine for headphones that are 80-Ohms or higher.
50-Ohm to 80-Ohms headphones can usually work with any type of amplifier.
For a desktop amplifer, get the O2 (Objective 2) portable headphone amplifier ($155), it comes with an impedance of under 1-Ohm, can drive headphones from 16-Ohms to 600-Ohms
and you can use it just like an AC powered desktop amp (just leave the AC adapter plugged in)
And if you decide to take it on the go, I think it's battery charge last about 10 hours.
The iStreamer is the cheapest one I know of, maybe try to find a Apple/iPod/iPhone forum, your sure to find the latest info from dedicated iPod users.
As far as I know the Fiio's USB can not connect to the Apple's LOD port, but I'm far from an apple expert, try to find a dedicated Apple/iPod/iPhone forum.
I think a lot of mini-stereo system can connect to the Apple's LOD port.
- Amp recommendations?
Gear mentioned in this thread:
- › New Member Introductions thread 27 seconds ago
- › EarSonics' new 9 BA driver flagship: the S-EM9 2 minutes ago
- › Schiit Happened: The Story of the World's Most Improbable Start-Up 3 minutes ago
- › Rhapsodio thread 3 minutes ago
- › Audio GD Master-11(Combination from Master 7 and Master 9) 3 minutes ago
- › Lets Talk Metal 4 minutes ago
- › Xiaomi Pistons 3.0 Impressions Thread 4 minutes ago
- › Desktop Headphone Amp/Dac with output switch?? 5 minutes ago
- › Pioneer's First Hi-End Headphones: SE-Master 1 5 minutes ago
- › Cheap Earphones for Rock/Metal Music 5 minutes ago
- › Earsonics - S-EM9 in-ear Earphones by Hisoundfi
- › HIFIMAN SuperMini High-Res Portable Player by FortisFlyer75
- › Sony MDR-1A Premium Hi-Res Stereo Headphones by Peter Zhang
- › FiiO A1 Micro Headphone Amplifier by Headzone
- › SIMGOT EN700 In Ear Dynamic Earphone 24Ω Original ... by bhazard
- › Sony MDR-CD2000 CD Series Headphones by leroik
- › iFi Pro iCAN by ostewart
- › Sennheiser HD 590 Headphones by aafanatic
- › HiFiMAN Megamini by glassmonkey
- › SHOZY Zero IEM by suman134
- › Flawless Album Suggestions
- › The Audiophile Scene in a Third World Country...
- › Mad Lust Envy's Headphone Gaming Guide,...
- › Mad Lust Envy's Headphone Gaming Guide,...
- › Mad Lust Envy's Headphone Gaming Guide:...
- › Chord Mojo FAQ
- › Head-Fi Logo Gear
- › All about iPod Touch 6G as digital transport
- › List of major HiFiMan HE1000 reviews,...
- › Can I change my user name? Can I delete my...