The iBasso P3+ Herron has made its way to my door and there are images and more . . .

[ihyan2]

Hi T.R.A.N.C.E Just tried your recommended setup. Really liking it goes one deeper and opens up the sound stage. Small amount of hiss with the UM3X but ill run it first see if the hiss gets better.

 

[HiFlight]

Quote:

Originally Posted by ihyan2 /img/forum/go_quote.gif First time i installed op-amp in the G/V setting, was using the dummies previously. Noticed a very distinct increase in noise, is this true for all op-amps to be placed in G/V? Meaning will it increase noise? Using AD827 L/R and 797 in buffs.

Unless you are using a dual-channel opamp in the center ground socket, you will need to have a single-channel opamp in either the G or V socket with a dummy opamp or single-channel opamp in the opposite side. In other words, you cannot leave an empty G or V socket.

 

[T.R.A.N.C.E.]

Quote:

Originally Posted by ihyan2 /img/forum/go_quote.gif Hi T.R.A.N.C.E Just tried your recommended setup. Really liking it goes one deeper and opens up the sound stage. Small amount of hiss with the UM3X but ill run it first see if the hiss gets better.

Have you changed the GAIN to 0 yet? The amp comes stock with gain at 10.5 and 0 would be better for the UM3x. So if gain is at 10.5 that would be the reason for the hiss (but yeah there will still always be some hiss regardless with the setup I recommended)

 

[nickyboyo]

I just have to comment, the combined set up suggested by Ron and Spud -2111's (all i have to do now is pick the metal can version from Spud

) in L/R, 797's in the buffer section and 627's in the G/VG is just amazing.
My rig at the moment is a Sony S639F, the P3+ and a pair of Alessandro MS-1's plus one of webbie's silver interconnects (very nice it is to mate!). It is hard to believe the value of this set up and the enjoyment and fulfillment gained from just listening to the music.
This amp rocks, but on a side note- i did have a listen to webbie's D10 maxed out amp (nice work J), and i would be very interested to see what effect blackgating the P3+ would have on the sound. Not that this is a matter of urgency, as in stock mode with this chip set-up the amp is very nice nice indeed.

 

[SpudHarris]

nickyboyo YGPM

 

[SpudHarris]

Ok, I finally got around to trying the AD797BRZ's in Buffer position and yet again this little amp amazes me

. Surely this is as good as it gets. This little amp punches soooo far above it's weight, bang for buck it's just unbeatable.

797's in buffer position is the way to go, thanks nickyboyo

Has the OPA2111AM landed yet?

 

[koshinki]

Quote:

Originally Posted by SpudHarris /img/forum/go_quote.gif Ok, I finally got around to trying the AD797BRZ's in Buffer position and yet again this little amp amazes me . Surely this is as good as it gets. This little amp punches soooo far above it's weight, bang for buck it's just unbeatable. 797's in buffer position is the way to go, thanks nickyboyo Has the OPA2111AM landed yet?

wait wait wait.. i'm lost!!! haha
if u use the AD797 in buffer socket, then whr can i find the 627? is it inside the kits set? i can't find this, need to purchase separately?

can u please post a clear photo for this? easy for "amp idiot" like me....

thanks

 

[koshinki]

now i'm using trance's setup....AD827 L/R, BUF634P Buffs, AD797 G/V,but using the 10.5db, need to change to zero db???

just want to try the 797 in buffer, but cannot find the 627 in the kits set..

 

[SpudHarris]

You won't. The OPA2111AK or KP and the OPA627's will have to be purchased as they are not part of the rolling kit.

 

[koshinki]

Quote:

Originally Posted by SpudHarris /img/forum/go_quote.gif You won't. The OPA2111AK or KP and the OPA627's will have to be purchased as they are not part of the rolling kit.

oh no!!! spend money again...
anyone can provide me the link to purchase this?

 

[T.R.A.N.C.E.]

Quote:

Originally Posted by koshinki /img/forum/go_quote.gif oh no!!! spend money again... anyone can provide me the link to purchase this?

well it depends on where you live, but alot of people use farnell.com they have a website for a few diff countries with free shipping. Just go to their site and search a part number eg OPA2111KP.

Also if your using low impedance IEM's/canalphones then it is probably better to use 0db gain for a clearer signal.

 

[koshinki]

Quote:

Originally Posted by T.R.A.N.C.E. /img/forum/go_quote.gif well it depends on where you live, but alot of people use farnell.com they have a website for a few diff countries with free shipping. Just go to their site and search a part number eg OPA2111KP. Also if your using low impedance IEM's/canalphones then it is probably better to use 0db gain for a clearer signal.

thks for the link.

i.m using the YUIN PK1. this is "low impedance"???

 

[T.R.A.N.C.E.]

Quote:

Originally Posted by koshinki /img/forum/go_quote.gif thks for the link. i.m using the YUIN PK1. this is "low impedance"???

ah, no. The PK1 is high impedance because it is 150 ohm so stick to 10.5db gain. Most phones 150 ohm and above are considered high impedance.

Most portables are low impedance, eg the PK2 and PK3 are low impedance as they are 16 and 32 ohm. So I was just assuming you had a low impedance phone

Also you can still try 797 in buffers, just leave 827 in l/r and use anything you want in GV (any opamp or buffer that comes with the stock p3 can be used in g/v) I tried it using the buff634, transistors, lmh6655 in g/v and didn't like any of them much at...

 

[koshinki]

Quote:

Originally Posted by T.R.A.N.C.E. /img/forum/go_quote.gif ah, no. The PK1 is high impedance because it is 150 ohm so stick to 10.5db gain. Most phones 150 ohm and above are considered high impedance. Most portables are low impedance, eg the PK2 and PK3 are low impedance as they are 16 and 32 ohm. So I was just assuming you had a low impedance phone

okok.. thanks for all the info...

 

[koshinki]

Quote:

Originally Posted by koshinki /img/forum/go_quote.gif okok.. thanks for all the info...

i'm new in this amp and sound.. but i realized the original set of opamps nicer than put in the 643 and 797 in. i feel that too warm (i hope i use the correct terms) when using my pk1. don't knw what's went wrong...