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Budget Amp - Page 2

post #16 of 36
my ms1i & hd238 all 32Ω, so not a concern. Did you use test with your portable player?
post #17 of 36
Thread Starter 

Thanks Eric for the comparisons.  As for now I have decided to give my wallet a break, seeing as a recently started to go crazy and buy headphones.  I will definitely be buying an amp in the future though

post #18 of 36

andtobis: No problem. I think you're making a wise decision to remain happy with what you already have!

 

radonsg: You might want to read discussions on the MS1/PA2V2 pairing here and here, to see differing points of view on whether the amp is worth it. FWIW, flipping through Gary's archive shows that quite a few PA2V2 users have Grados, and at the same time, the CMoyBB builder has a pair of SR-60--which means either choice should have its fair share of supporters.

post #19 of 36

Place an order for PA2V2 already.

post #20 of 36
Thread Starter 

this is a very costly addiction.  Eric, if i were to get the cmoyybb, since my headphones have lower impedance, what would be the effect of the amp on my headphones? Thanks, I'm very new to all these terms so i'm still trying to understand them

post #21 of 36

Get the E5 if you want extra bass. There's a switch for that. Tip: you will get B-52 level of bass bombardment if you use the XB700 with the E5, bass switch ON. Boom. Seriously that is the most amount of bass I have ever heard of in my life.

post #22 of 36
Thread Starter 

I was thinking about buying the e5, would I need anything else if I were to play it from my Ipod? or Do i just buy the e5?

post #23 of 36

Quote:
Originally Posted by andtobis View Post

this is a very costly addiction.  Eric, if i were to get the cmoyybb, since my headphones have lower impedance, what would be the effect of the amp on my headphones? Thanks, I'm very new to all these terms so i'm still trying to understand them

 

I'm not really sure about the effect per se...as I've left my physics knowledge behind me, I can only repeat what I hear on these forums until an actual EE chimes in. Ok regardless, I can tell you that Jason, the CMoyBB builder, uses a pair of SR-60 with them. Here are the stats for that headphone:

Sensitivity = 98 dB/mW

Impedance = 32 ohms

 

The lowest impedance ear/headphones I have are a pair of Sennheiser IE8 (in-ears), which measure 125 dB and 16 ohms. For them, at least, music got very loud very fast. What are your headphone specs?


 

Quote:
Originally Posted by andtobis View Post

I was thinking about buying the e5, would I need anything else if I were to play it from my Ipod? or Do i just buy the e5?


Not sure if E5 comes with a mini-to-mini cable (a.k.a.: 1/8" to 1/8", or 3.5mm to 3.5mm), but you'll need one to connect it to the E5. General consensus is to have a Line Out Dock also--these are some examples. The idea of a Line Out Dock (or LOD) is to take a "line level signal", which is unamplified and fixed volume. Think of it like having a dedicated graphics card, where

Amp : iPod, just as 

Graphics card : CPU

 

Hence, the amp is taking some of the work off the iPod's shoulders (the amplification, in this case). 

Without a LOD, what happens when you play a file is kind of like this:

1. Music file played

2. iPod processes the music file so it can be amplified (technically: digital-to-analogue conversion occurs)

3. iPod amps the signal, sends it to E5

4. E5 amps the signal again

5. You can control volume of the signal at both iPod and E5

 

With a LOD, this occurs:

 

1. Music file played

2. iPod processes the music file so it can be amplified

3. iPod sends unamped signal to E5

4. E5 amps the signal once

5. Volume is controlled only at E5

**This is true of just about any amp, portable or not.

post #24 of 36
Thread Starter 

==ATH-M50==

Impedance: 38 Ω

Sensitivity: 99 dB

 

==Sony MDR-XB700==

 

Impedance: 24 Ω

Sensitivity: 106 dB

 

Those are the specs for my headphones.  The impedance is around your IE8's, so i'm assuming the same thing will happen with my headphones.  Did your girlfriend get stopped with her amp at the airport?

 

So if I'm understanding this correctly its not necessary to have a LOD, as long as I have a mini-to-mini cable?

 

Thanks

post #25 of 36

AFAIK, LODs aren't necessary, but without them you will be double amplifying the signal--which I am told doesn't make sense. However, for budget amps such as the CMoy and PA2V2, it may not make as much of a difference.

 

My girlfriend didn't bring the CMoyBB with her in the end; she was too worried that the nice Altoids tin would get damaged somehow.

 

Your M50 shouldn't have problems being amped, although the Sony may get loud faster. I would search the forums for specific discussions on amping the Sony though.

post #26 of 36
Thread Starter 

I did some research and for the fiio e5 getting a LOD is actually very beneficial. 

 

Women

 

Thanks for your help.  I know that the M50 doesn't respond to being amped too much, unless its a really great amp.  But I hear that the sony xb700 actually do change a lot with amps.  I will definitely look into a whole bunch of amps since christmas is soon, as well as my birthday so maybe i will expand my inventory

post #27 of 36

There's a saying: "Godliness with contentment is great gain." 

Even for those of us who aren't religious, half of that statement still contains a good lesson. Enjoy what you already have first, andtobis!

post #28 of 36
Thread Starter 

Wise words, I guess that is the problem with this hobby is that you keep wanting the best

post #29 of 36

Heh heh, but the best equipment is usually the worst for your wallet!

post #30 of 36
Quote:
Originally Posted by andtobis View Post

Wise words, I guess that is the problem with this hobby is that you keep wanting the best


I think any hobby does the same, wanting the best.

It make the wallet thin :{

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