OPPO PM-1 Planar Magnetic Headphones - Page 4 - AVS Forum
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post #91 of 103 Old 07-28-2014, 10:39 PM
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^ That brings up a good point though, about Oppo and how they have a 30 day return policy.
You can buy and then if you don't like them, just return for a full refund within 30 days and you are only out the shipping charges.
I don't know of any other OEM of these types of products that offers such a generous return policy.

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post #92 of 103 Old 07-29-2014, 05:46 PM
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Quote:
Originally Posted by Smarty-pants View Post
I think the unbalanced headphone outputs will be very close to the same, but the balanced will sound quite a bit better.
It also of course depends on what headphones you are using. You will need some very high quality cans like the PM-1 or PM-2 to hear the difference.
I think the balanced output are superior to the unbalanced on the Oppo HA-1; even at matching audio level. The balanced just sounds better.

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post #93 of 103 Old 07-30-2014, 11:53 PM
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This is what Oppo says about the HA-1 ".... All single-ended outputs are derived from the balanced signal as well...."


This means the SE output is derived from the positive leg of the balanced output, so how can the SE output sound inferior to the balanced output since its the same signal? Just curious...

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post #94 of 103 Old 07-31-2014, 01:28 AM
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Quote:
Originally Posted by dmusoke View Post
This is what Oppo says about the HA-1 ".... All single-ended outputs are derived from the balanced signal as well...."


This means the SE output is derived from the positive leg of the balanced output, so how can the SE output sound inferior to the balanced output since its the same signal? Just curious...

It's magic.

I'll be back later...


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post #95 of 103 Old 07-31-2014, 04:59 AM
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Quote:
Originally Posted by dmusoke View Post
This is what Oppo says about the HA-1 ".... All single-ended outputs are derived from the balanced signal as well...."


This means the SE output is derived from the positive leg of the balanced output, so how can the SE output sound inferior to the balanced output since its the same signal? Just curious...
It is the same signal; but only half of it By switching between balanced and unbalanced output (with same headphones; I could with ease hear which output is being used). Just tested by having another person selecting output and setting matching volume level. (pausing the music during switch and volume adjustment).

Edit:
Keep in mind that balanced is not only lower noise levels; also increased dynamic range.

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HP: Moon Neo 430HA w/DAC - Oppo HA-1 - Nordost Heimdall 2 - Audeze LCD-3(Fazor), 2*LCD-XC - Shure SE846 - Sennheiser IE 800 - Cambridge DacMagic Plus - Beyerdynamic T5p, T70p

Last edited by Berland; 07-31-2014 at 05:03 AM.
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post #96 of 103 Old 08-22-2014, 06:40 AM
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anyone try the alternative Lambskin Leather Earpads?

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post #97 of 103 Old 08-22-2014, 07:47 AM
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Quote:
Originally Posted by markrubin View Post
anyone try the alternative Lambskin Leather Earpads?
Here's some info from using all of the PM-1 pads on the PM-2.
More info from Tyll on using them with the PM-1 soon.
http://www.innerfidelity.com/content...d-measurements

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post #98 of 103 Old 08-22-2014, 07:52 AM
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Quote:
Originally Posted by markrubin View Post
anyone try the alternative Lambskin Leather Earpads?

I have. I prefer them. The sound is more open on the high end and seems a bit more defined in the lows.

There is a good comparison with measurement in Innerfidelity:

http://www.innerfidelity.com/content...d-measurements

The difference sounded more pronounced than the measurements might look, but then again the scale is pretty large.
If you have PM-1s, I recommend signing up for them.

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post #99 of 103 Old 11-28-2014, 08:24 AM
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I just picked up a set of the PM-1 headphones a couple of days ago.

These are my opinions thus far. Feel free to agree or disagree! This is more of a first impression than anything. I am really pleased with the purchase and grow more so as I spend time with them.

Sources: various sites and media across my PC utilizing an HRT microStreamer as well as some time with my OPPO BD-105

I was a bit dissapointed with the BD-105 headphone amp. A bit dull and lifeless versus the HRT.

In that I haven't spent much time with recent high end cans, I will have to compare these to my Wilson Watt Puppies. Sorry for that!

Pros
Smooth
Fast
Neutral
Non-analytic
Extreme comfort
Detailed
Absolutely effortless
Micro-details are clear and precise


Cons
Versus the W/P - they lack the base punch - this may be the fault of the lack of a real amplifier.


Summary
Very easy to listen to for hours on end with no fatigue whatsoever. I keep wanting to hear just one more cut.

I preferred the sound and comfort of the velour pads over that of the lambskin set. Not by very much though. Both are viable options and I will probably spend more time investigating this in the near future.

Notes
Once the holiday mess has settled I expect I will purchase an HA-1 and a balanced cable. I expect that this will really be a boon to such a pleasurable headset. More to come as I get more time on them and decent amplification.

I do want to stress that the HRT really does shine with these if you are in the market for an affordable/portable USB DAC amp device.
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post #100 of 103 Old 01-01-2015, 06:47 PM
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Quote:
Originally Posted by RayDunzl View Post
It's magic.
It's measurable magic--check the side-by-side spec comparison on Oppo's site for the HA-1's headphone outputs, XLR vs. RCA.

My system? Google for: Martin Logan 420 CLX Descent Stage Summit
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post #101 of 103 Old 01-01-2015, 06:53 PM
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I have a pair of these excellent headphones.

Now I want to get a stand for them.

Has anyone tried a Sieveking Omega with the PM-1s?

I like the way it looks better than the plastic stand from Oppo, but (presumably) the stand from Oppo fits the contour exactly. The measurements for the Omega show it at least a half inch narrower than the chord across the PM-1's headband. Which means for all the graceful bentwood construction of the Omega, it might be not much better than hanging them off a coathanger (because if the contour doesn't match, then the weight isn't evenly distributed on the curve, only on the apex).

My system? Google for: Martin Logan 420 CLX Descent Stage Summit

Last edited by jimshowalter; 01-01-2015 at 06:56 PM.
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post #102 of 103 Old 01-05-2015, 11:24 AM
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Quote:
Originally Posted by jimshowalter View Post
I have a pair of these excellent headphones.

Now I want to get a stand for them.

Has anyone tried a Sieveking Omega with the PM-1s?

I like the way it looks better than the plastic stand from Oppo, but (presumably) the stand from Oppo fits the contour exactly. The measurements for the Omega show it at least a half inch narrower than the chord across the PM-1's headband. Which means for all the graceful bentwood construction of the Omega, it might be not much better than hanging them off a coathanger (because if the contour doesn't match, then the weight isn't evenly distributed on the curve, only on the apex).
I asked the same question on head-fi and a person tried their PM-1s with an Omega. They said it fit okay, but only if they expanded the headband all the way, otherwise it pinched the cups. So no Omega for me. Ordered a stand from Oppo.

My system? Google for: Martin Logan 420 CLX Descent Stage Summit
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post #103 of 103 Old 01-06-2015, 02:41 AM
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Picked up the stand today. Fits perfectly. And looks way better in person than it looks in any photos I've seen.

My system? Google for: Martin Logan 420 CLX Descent Stage Summit
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