[beyerdude]

I was told this would give me a clean sound. My muse1 seems a little vailed. Like the high piano notes are not as sharp as the x5 alone

my initial combo (HA 5002 and Muses 02) sounded muddy/veiled with high impedance headphones (300 ohm HD600), but swapping it to the LM49600 made it really sound excellent - Which is annoying because now I end up swapping opamp and buffer when I choose to use IEM's over the HD600 (which is rare thankfully)

 

[K.T.]

NJM5532 purchased this opamp feom mouser for $1.50. This seems inexpensive. Is this the correct price?

For the price, it's a no brainer to try it out.

Whether you'll love it is another matter. It is a good sounding op amp, and I think some folks love it.

When I tried it, I thought it was great for a while. But after extended listening, I felt it was a bit harmonically underdeveloped for my taste. While it had a very clean, fast, open sound, I preferred the MUSES and OPA627/OPA827 for the richer presentation.

But don't let me dissuade you. At the asking price, you almost definitely should try them and decide for yourself.

 

[warrior1975]

I am interested in this, however use never done anything like this. Are there specific places I can look for buf and op amp chips that fit this device?is the original equipment that comes with it enough? Is it time consuming to swap the parts out? Thanks for any info anyone can share.

 

[Ekul61]

Lm49600.. is this one of the stock amps that come with the unit

 

[nmatheis]

I am interested in this, however use never done anything like this. Are there specific places I can look for buf and op amp chips that fit this device?is the original equipment that comes with it enough? Is it time consuming to swap the parts out? Thanks for any info anyone can share.

If you look back over this thread, you'll fing ClieOS and a few others have compiled a couple lists of their favorite Opamps and buffers. This can be a shopping list of sorts to get you going after you try the options Fiio provides in the box.

Once you decide to try more, you can either buy small opamps to solder onto Fiio's adapters or you can purchase dip8 opamps which require some filing of the inner case to fit. Again, ClieOS has a pictorial for the filing procedure in this thread. I filed mine down. It took a half hour or so to get it right.

Once you've got the case filed down and some dip8 opamps in hand, it's as easy as removing two screws from the case and gently removing the old opamp and reversing the procedure. Piece of cake!

And every once in awhile, someone on the thread like ClieOS will offer to solder a batch of opamps to adapters and ship them to fellow headfi-ers at cost. Very nice gift to the community!

 

[warrior1975]

nmatheis nice, thanks bro. Out of Thanks for the day unfortunately, I owe you one!

 

[nmatheis]

warrior1975:

 

[Ekul61]

Lm49600.. is this one of the stock amps that come with the unit

dont kn ow but someone will answer you soon

 

[Loquah]

Lm49600.. is this one of the stock amps that come with the unit

 
LME49600 is a buffer that does come with the unit

 

[Ekul61]

LME49600 is a buffer that does come with the unit

any opinion on a combo that brings the mids to life

 

[Loquah]

any opinion on a combo that brings the mids to life

 
The mids are amazing with the BUF634 (stock) and OPA827 (not stock) is a glorious mid-range combo

 

[vilhelm44]

Do you still have an audible hiss with the DIY version? The E12 does which is slightly annoying. I'm using mine with the Sony NWZ-ZX1 and JH13 Pros.

 

[nmatheis]

If you don't want hiss maybe go with E12A

 

[LeeU]

For me I have settled on the Muse 02 op amp, LM4900 buffer in high bandwidth mode with 220 ohm resistors only raising the band width ever so slightly over the low bandwidth mode and Black Gates Nx HiQ 47uF 6.3V capacitors running my Sennheiser HD650's, it took over 300 hrs to burn in the capacitors but I'm done, this combo is the one for me. In the photo I have the the HA 5002's in which is my second favorite buffer.

 

[vilhelm44]

If you don't want hiss maybe go with E12A

 
Thank you, I shall look into that.