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

[hopeless]

Well, speaking of evolution... As soon as my adapters arrive (few of them due to little money left

) I will try the EL2227 and OPA2822, both of which are quite promising for their vanishingly low distortion in the audio band. We'll see. I'm particularly inspired by the Intersil part... I guess in the end it will be a game between these and the OPA2211.

 

[wagen]

[size=medium]

OPA2132P => BUF03FJ => OPA627SM
14.8V battery work now.
Capacitancehilips 16V 2200μF[/size]

 

[hopeless]

Is the OPA2132P in the main channels? I like that opamp.

 

[SpudHarris]

How do you get a 14.8v battery in there?

 

[denging]

Quote:

Originally Posted by wagen /img/forum/go_quote.gif [size=medium] OPA2132P => BUF03FJ => OPA627SM 14.8V battery work now. Capacitancehilips 16V 2200μF[/size]

This is interesting. How does it sound? Those cans draw a lot of juice alright..

 

[hopeless]

I'm afraid that that OPA2132P is not in the main channels. BTW rather than the OPA627SM I'd have put in there a couple of LME49710HA. Not only it sounds better, it's also more suited to low supply voltage.

 

[wagen]

Quote:

Originally Posted by SpudHarris /img/forum/go_quote.gif How do you get a 14.8v battery in there?

[size=medium]I only use four Lithium batteries, model 10440.
[/size]

 

[Gbjerke]

by using the opamps that come with it, what's the best combination? And i know it depends on taste, but just general.

 

[SpudHarris]

It is personal taste but IMO the AD797's make excellent ground chips with almost any combination of L/R. I would keep the 827 in L/R and tansistor buffers already installed and put the 797's in G/V.

I've biased my 797's to Class A and they are just superb in L/R and ground.

 

[nickyboyo]

Quote:

Originally Posted by SpudHarris /img/forum/go_quote.gif It is personal taste but IMO the AD797's make excellent ground chips with almost any combination of L/R. I would keep the 827 in L/R and tansistor buffers already installed and put the 797's in G/V.

That is the set up i am currently using, and with my K701's it sounds superb. I have just listened to the same set up but using an SR-71 for the amp. Any body have any suggestions what combo's to use to bring the P3+ close to the SR-71 sound signature?

 

[hopeless]

Quote:

Originally Posted by nickyboyo /img/forum/go_quote.gif That is the set up i am currently using, and with my K701's it sounds superb. I have just listened to the same set up but using an SR-71 for the amp. Any body have any suggestions what combo's to use to bring the P3+ close to the SR-71 sound signature?

The SR71 has AD8610 + BUF634, so your guess...

 

[nickyboyo]

Quote:

Originally Posted by hopeless /img/forum/go_quote.gif The SR71 has AD8610 + BUF634, so your guess...

That's the problem, as it was pointed out to me today, an amp is more than the sum of it's opamps. If anyone has a buffer and opamp combination's for the P3+ to give it the driving power and the warmth of the SR71, please let me know. I will have to drop HiFlight and jam a line to see if they have any suggestions. But still, the P3+ in my current configuration is a superb amp, great drive and very analytical, after listening to the SR71, adding that warmth factor would be a nice addition to the P3+'s range.

 

[hopeless]

Quote:

Originally Posted by nickyboyo /img/forum/go_quote.gif That's the problem, an amp is more than the sum of it's opamps. If anyone has a buffer and opamp combination's for the P3+ to give it the driving power and the warmth of the SR71, please let me know. I will have to drop HiFlight and jam a line to see if they have any suggestions. But still, the P3+ in my current configuration is a superb amp, great drive and very analytical, after listening to the SR71,a dding that warmth factor would be a nice addition to the P3+'s range.

Of course, but what you asked is "close" not "a copy of it", and I replied consequently

 

[nickyboyo]

Absolutely

 

[hopeless]

Quote:

Originally Posted by nickyboyo /img/forum/go_quote.gif Absolutely

There's nothing better for bringing it close to the SR71 than equipping the P3 with the same opamps and buffers. The topology difference can't be overcome.

That said, a 4 channel amp is supposed to be "better"...