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post #241 of 258 Old 08-25-2014, 10:01 AM
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Originally Posted by willybk3 View Post
That did it - THANKX Dave!

Will
As long as you know that the 2.0 audio output will be lossless via SPDIF but the 5.1 audio will be lossy via SPDIF So MCH lossless DSD files converted to MCH lossless PCM in the Oppo will be output as lossy MCH on the KanexPro.

How to phase match subwoofers to the mains speakers:
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post #242 of 258 Old 08-25-2014, 01:02 PM
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Originally Posted by dmusoke View Post
As long as you know that the 2.0 audio output will be lossless via SPDIF but the 5.1 audio will be lossy via SPDIF So MCH lossless DSD files converted to MCH lossless PCM in the Oppo will be output as lossy MCH on the KanexPro.
Hmm, so the KP actually downconverts the audio?... because it exceeds the bandwidth of SPdif capability or what?
I never really thought about that since the HA-1 is 2-channel only, so...
whenever you are using the KP method, just be sure to play the stereo layer of your SACDs when applicable.

~Dave

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post #243 of 258 Old 08-25-2014, 01:13 PM
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The KP units only has HDMI and SPDIF outputs but since the HA-1 can only accept the digital SPDIF outputs and has no HDMI input, then you are limited to the specs of the SPDIF connections, which is lossless for 2.0 up to 192kHz sampling rate and lossy for 5.1 outputs.

How to phase match subwoofers to the mains speakers:
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post #244 of 258 Old 08-25-2014, 01:26 PM
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^ So I wonder what happens when you try to feed the HA-1 a 5.1 audio track via SPDIF?... I haven't tried it.
Will it convert it to 2.0 downmix, or only play the L/R channels, or just have no audio at all?
I may try that sometime in the next few days and see what happens.

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post #245 of 258 Old 08-25-2014, 02:31 PM
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SPDIF accept a 5.1 track but will be lossy and not lossless/HD due to bit-rate limitations of the SPDIF interface. Lossless audio has much higher bit-rates(up to 25Mbits/s) than lossy audio(448kbits/s for DVD and 640kb/s for Bluray). You'll have to select a lossy 5.1 track if you want to pass it via SPDIF.


I connect my audio from my DVR via SPDIF to my pre-pro and HDMI for video to minimize the dreaded HDMI handshake. The audio is Dolby 5.1 encoded.

How to phase match subwoofers to the mains speakers:
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post #246 of 258 Old 08-25-2014, 04:17 PM
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question on headphone wire

I have the HA1 and need a long run from the unit to where I sit

is the length of wire an issue as with speaker wire?

different gauge needed for different length runs????

What you got back home, little sister, to play your fuzzy warbles on? I bet you got little save pitiful, portable picnic players. Come with uncle and hear all proper! Hear angel trumpets and devil trombones. You are invited.
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post #247 of 258 Old 08-25-2014, 05:30 PM
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The laws of electronics say No. The output of the HA-1 is a voltage output with low impedance(less than 100 ohms to ground). The input impedance to HP could be as low as 30 ohms(like the PM-1) to 600 ohms.You have a voltage divider between the headphone wire low impedance(0.1 ohms) and the actual HP impedance which is 300 to 6000 times greater. So most of the voltage(99.999%) will drop into the HP itself.


No worries...its about wire resistance R, inductance L, and capacitance C. R and L are not an issue as they are usually very low not to matter but C could be an issue as it could affect the frequency response, worst case for lousy HP cables. Make sure C is way under 100pF/ft. Typical is under 50pF/ft.
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post #248 of 258 Old 08-25-2014, 06:41 PM
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^ Several months ago I purchased an extension cable, with 1/4" male on one end and 1/4" female on the other, and about 25ft long,
to use with headphones when I need the distance. I think it only cost around $10. I believe the brand is "Hosa", (sold at B&H, Amazon, et al...).
Thought I would give it a shot and if it wasn't up to par, I would find a better one.
However with one end of the cable plugged into the HA-1 and the other into headphones,
I can't hear any difference from having the headphones plugged directly into the HA-1.
That is also unbalanced and I haven't attempted the same thing with a balanced XLR cable yet, but I have a feeling it'll probably have the same results.
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post #249 of 258 Old 08-28-2014, 08:26 AM
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connection question now

is this the correct wire to use to connect my Nad CD player, C542 to my HA 1?

and is this the correct usb wire to connect my lap top to the ha1?

What you got back home, little sister, to play your fuzzy warbles on? I bet you got little save pitiful, portable picnic players. Come with uncle and hear all proper! Hear angel trumpets and devil trombones. You are invited.
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post #250 of 258 Old 08-28-2014, 08:33 AM
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Quote:
Originally Posted by eljr View Post
connection question now

is this the correct wire to use to connect my Nad CD player, C542 to my HA 1?

and is this the correct usb wire to connect my lap top to the ha1?
Those wire are the correct types but there are less expensive options as well:


http://www.amazon.com/dp/B00004Z5T2/...elkin+gold+usb


http://www.bluejeanscable.com/store/audio/index.htm


- Rich
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post #251 of 258 Old 09-13-2014, 08:33 PM
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Can I connect an Oppo 103 to an Oppo HA-1 and play SACDs? Blu-ray audio? DVD-Audio? Blu-ray concert films (audio track only, obviously)?

My system? Google for: Martin Logan 420 CLX Descent Stage Summit
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post #252 of 258 Old 09-14-2014, 03:15 AM
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Can I connect an Oppo 103 to an Oppo HA-1 and play SACDs? Blu-ray audio? DVD-Audio? Blu-ray concert films (audio track only, obviously)?
Yes, but... you will of course have to downmix any multi-channel audio to 2-channel audio,
and for high resolution audio like SACD/DVDA, and TrueHD/DTS-HD-MA, will have to be run through the analog output
of the 103 since the SPDIF (coax/optical) won't pass those high res codecs.
They can only be sent over analog or HDMI and of course the HA-1 doesn't have an HDMI input.

There is an alternative option using an audio "de-embedder", which is mentioned in previous posts of this thread.

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post #253 of 258 Old 09-14-2014, 05:01 PM
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Quote:
Originally Posted by Smarty-pants View Post
of course the HA-1 doesn't have an HDMI input.
Rats. Any reason why that's the case? It seems kind of bizarre.

The headphone section in a 105 doesn't seem to be as good as the HA-1, but I guess I'll have to settle for it.

My system? Google for: Martin Logan 420 CLX Descent Stage Summit
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post #254 of 258 Old 09-14-2014, 05:47 PM
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Originally Posted by jimshowalter View Post
Rats. Any reason why that's the case? It seems kind of bizarre.

The headphone section in a 105 doesn't seem to be as good as the HA-1, but I guess I'll have to settle for it.
With HDMI you're talking about another high end chip and board and software coding for all that goes with it.
That would significantly increase the price, so I'm sure that is why Oppo stuck with the features it does have.
Like I said you can use a de-embedder with the the player and HA-1 and is a very affordable solution at around $50.
However, the headphone amp of the 105 is no slouch. It's quite good in fact.

~Dave

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post #255 of 258 Old 09-15-2014, 02:28 AM
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Quote:
Originally Posted by jimshowalter View Post
Rats. Any reason why that's the case? It seems kind of bizarre.

The headphone section in a 105 doesn't seem to be as good as the HA-1, but I guess I'll have to settle for it.
Did you consider a small class A headphone amp without all the digital input capability? You already have a 103 and can downmix to the FR/FL RCA inputs? I use a firestone audio cute beyond with my 95 and love it. I'd like to have a HA-1, but I don't really need all the digital input capability repeated that my 95 has.

There are many great headphone amps out there that are just that, amps. If I were buying another headphone amp, I'd probably go with the Burson Audio Soloist or I'd give tubes a try and try a woo audio wa3.

Last edited by glangford; 09-15-2014 at 02:34 AM.
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post #256 of 258 Old 09-16-2014, 07:55 AM
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Originally Posted by eljr View Post
question on headphone wire

I have the HA1 and need a long run from the unit to where I sit

is the length of wire an issue as with speaker wire?

different gauge needed for different length runs????
In general for long runs, use the balanced cable (XLR) output. There is nothing magical or expensive about this; it is standard microphone cable. It is very good at is rejecting so-called common-mode noise (hum) that is typically picked up from nearby power cords and similar. This is why on a stage, microphone cables are run balanced. But, if you don't have any background noise issues using unbalanced (RCA), then don't worry about it.

Also, the HA-1 is designed as a balanced amplifier, so using the balanced output is recommended, not required, to avoid the balanced to single-ended conversion at the RCA output of the HA-1.

Finally, balanced has twice the voltage swing as unbalanced and so will deliver 6dB more power to your headphones. Whether this shows up as increased volume to your ears depends also on the details of the headphone design.

As stated in other replies, cable impedance (resistance) is not much of a concern with headphones, buy a decent quality cable and no worries.
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post #257 of 258 Old 09-16-2014, 01:22 PM
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Question to Smarty-Pants (Dave) - I saw that you were selling your silver HA-1. I had just purchased an HA-1 (black) PM-1 combo from Oppo last month to match my old Stax unit - two days away from 30 day return - did you not like the HA-1?

Will
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post #258 of 258 Old 09-16-2014, 01:34 PM
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Question to Smarty-Pants (Dave) - I saw that you were selling your silver HA-1. I had just purchased an HA-1 (black) PM-1 combo from Oppo last month to match my old Stax unit - two days away from 30 day return - did you not like the HA-1?

Will
I LOVE the HA-1 Will. It is an exquisite unit for everything it does.
However a financial emergency arose and I need money for personal finances right now.
I still have a BDP-105 that is almost as good as the HA-1 and that will have to get me by for a while.

~Dave

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