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PT2308 chip based portable headphone amp
http://diyaudioprojects.com/Forum/viewtopic.php?f=10&t=6547
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Author:  ILoveHiFi [ 16 Jun 2019, 02:54 ]
Post subject:  Re: PT2308 chip based portable headphone amp

Quote:
No just off the shelf. There is about four or size sizes. This one is the second largest.


Thats getting things done professionally
Quote:
Al foil lines top and bottom and is earthed for shielding and a Dacron pad helps control resonance

Author:  gofar99 [ 17 Jun 2019, 21:28 ]
Post subject:  Re: PT2308 chip based portable headphone amp

Hi, I used the TPA6120A2 for a couple of headphone amps. A superior device but not cheap. It is a 700mw per channel output thing and is quite configurable. I have to admit that I use the OPA2134 for low power phone amps and they work rather well at that and are a lot cheaper and easier to source.

Good listening
Bruce

Author:  mwhouston [ 17 Jun 2019, 23:58 ]
Post subject:  Re: PT2308 chip based portable headphone amp

I’ve asked Oatley if they will sell 10 PT2308s. No reply as yet.

Author:  mwhouston [ 18 Jun 2019, 00:04 ]
Post subject:  Re: PT2308 chip based portable headphone amp

gofar99 wrote:
Hi, I used the TPA6120A2 for a couple of headphone amps. A superior device but not cheap. It is a 700mw per channel output thing and is quite configurable. I have to admit that I use the OPA2134 for low power phone amps and they work rather well at that and are a lot cheaper and easier to source.

Good listening
Bruce

Is there a non-surface mount equiv?

Author:  gofar99 [ 18 Jun 2019, 14:22 ]
Post subject:  Re: PT2308 chip based portable headphone amp

Hi Mark, unfortunately no. I use "surf" boards for them. Not too difficult with a 6-12 watt iron.

Good listening
Bruce

Author:  ILoveHiFi [ 18 Jun 2019, 16:57 ]
Post subject:  Re: PT2308 chip based portable headphone amp

There is allot of hifi op amps 100% geniune on rs components for free shipping and low purchase quantaty.
Have you looked at them yet?

Author:  mwhouston [ 18 Jun 2019, 17:20 ]
Post subject:  Re: PT2308 chip based portable headphone amp

ILoveHiFi wrote:
There is allot of hifi op amps 100% geniune on rs components for free shipping and low purchase quantaty.
Have you looked at them yet?

Not as yet.

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