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Oppo HA-1 Impressions Thread - Page 17

post #241 of 4750
Quote:
Originally Posted by HasturTheYellow View Post

 

Output power is independent of the input used. So as long as you are using the balanced headphone output, you will be getting the increased power output.

 

Thanks for that clarification, but I think this confusion about the (non-existent) relationship between input selection and output power will continue (with similar questions to come), if the text I've highlighted below, goes unmodified:
 

 

From page 29 of the HA-1 manual (version 1.2)

 

I'm not sure about the pre-amp specs, but at least for the headphone amp, shouldn't the highlighted text be deleted?

 

Thanks!

 

Mike

post #242 of 4750

Due to the size of the manual, adding another row would have forced us to make another page for the specifications. We did not want to do that, so we continued to group the inputs and the outputs even when talking about Output Power, since the input/output relationship is important for the Frequency Response, THD, SNR, DR and Output Impedance.


We will likely update the website to remove the XLR Input/RCA Input text for the Output Power, then re-add this text for the other specifications where the input relationship is applicable.

post #243 of 4750
Quote:
Originally Posted by HasturTheYellow View Post
 

 

The HA-1 is designed to be simple and powerful. Once you start adding in features like EQ, Sound Fields, and other user adjustments, you run the risk of making the product too complicated (which turns off buyers) or has a higher chance of being configured incorrectly (which directly affects customer satisfaction and reliance on tech support for resolving).

 

 

"Under promise; over deliver" and "expect the unexpected". 

 

There will always be inherent limitations in the hardware/software, so it is best to take suggestions as they come, work on implementing them to the best of your ability, then release the enhancements to the customer.


I can't think of any headphone amp that DOES have EQ built in.


Edited by HPiper - 5/16/14 at 11:44am
post #244 of 4750
Quote:
Originally Posted by x RELIC x View Post

This might wipe those tears. biggrin.gif

http://www.head-fi.org/t/685704/oppo-pm-1-a-new-planar-magnetic-headphone/1845#post_10543975

Includes the HA-1 as well. wink.gif
Quote: (Click to show)
Originally Posted by HasturTheYellow

For all those chomping at the bit for the PM-1 but were hesitant because of the International price discrepancy, we have updated our Offline Order Form to include the PM-1 and HA-1 products. This form will allow you to purchase any of our products direct and have them shipped internationally.

As I stated earlier this afternoon, there is a caveat with International orders, and that is with the Limited Warranty that normally protects our products from future defects. If you have a PM-1, HA-1 or other OPPO product shipped to an International destination, or these OPPO products are brought to an International destination, it will be the customer's responsibility to pay for the shipping of the OPPO product to and from our United States office. We will still cover the parts and labor itself as part of the Limited Warranty conditions, but we are not responsible for the freight. This is different from a North American purchase where we cover the freight to and from the customer as part of the Limited Warranty.

You are a star. Tears are dying kinda! Just got to bottom out lead times etc.... Thanks for the info smily_headphones1.gif
post #245 of 4750
The dac portion play bit perfect correct? Or does it upscale? Is there an upscale setting? Any perceivable difference between usb implementation and the toslink/coax?

Thought I'd throw it out there since now one has asked these questions...
post #246 of 4750
Quote:
Originally Posted by x RELIC x View Post


From this site, about a third of the way down before the unboxing pics.

http://www.avforums.com/news/oppo-enters-high-end-headphone-market-with-planar-magnetic-pm-1.10254

Quote:
"The first thing I did was set it to high gain and grab the notoriously hard to drive HiFiMan HE-‘6’s which to be fair most headamps can’t drive but the OPPO HA-1 really didn’t have any problems which is a great start."

And someone has it paired with the HE-6 in the HE-6 thread here:

http://www.head-fi.org/t/493214/hifiman-he-6-planar-magnetic-headphone/13425#post_10530011

A couple of posts down he says he really likes it.


Thanks!

post #247 of 4750
Quote:
Originally Posted by mrscotchguy View Post

The dac portion play bit perfect correct? Or does it upscale? Is there an upscale setting?

 

Bit perfect. We do not subscribe to upscaling/sampling.

post #248 of 4750

Oppo HA-1. Some more impressions and theories of relativity.

Over the last few days I've been fortunate enough to be able to extensively listen to the new HA-1, given a break in my work schedule, and I've been trying to formulate my thoughts for you guys in a way that conveys what I'm hearing (may not be standard head fi descriptions but I'll do my best).

These are just my impressions and your mileage may vary.

Warning! Excessive enthusiasm ahead............

 

Build Quality

 

- First off I think the build quality is superb. The unit has some heft to it and the chassis and faceplate are top notch. On the front the power button and selector knob have a nice solid click when pressed, and when rotated the selector knob is tight with indents that don't offer too much resistance. The volume knob is liquid smooth and physically turns itself down when switching to high gain. There are no issues with the headphone jacks, SE and balanced. The iDevice USB jack was very tight, but not so much that I couldn't use it and I prefer it this way over a loose connection. On the back all of the input/output terminals are rock solid. I love the display and see no dead pixels and it's tack sharp. QC seems very high. The remote reminds me of the aluminum remote included with Apple products. All menu operations took no time to master. Very well thought out interface.

 

So how does it sound?

 

DAC

 

- Starting with the Sabre ESS 9018 DAC it sounds clear and very articulate. This is a great implementation of a world class DAC, and Oppo obviously has experience with getting the best out of it. I've listened through both coaxial and USB digital inputs and both of them sound fantastic. The DAC retrieves a level of detail in the recordings that I didn't know was possible. Listening to the REDBOOK CD ALAC rip of the 'Grizzly Man' soundtrack (highly recommended), through the LCD-XC, I can hear Richard Thompson shifting in his chair as he's playing his guitar in the first track 'Tim & the Bears'. I could hear him taking some subtle breaths before, but to hear him moving around slightly was something else. Every pluck of his guitar was as if I was in the session with him. The reverberation of the strings, the weight of the lower octaves, the clarity of the upper range. I really did hear every last detail.

 

With Norah Jones, Feels Like Home (192kHz/24bit ALAC, HD TRACKS), 'What Am I To You?' the lead electric guitar feels so real. Again, the reverberations, the growl, the texture, simply amazing. The bass guitar sounds fantastic, natural, hits low but doesn't overwhelm. Drums have great impact. 'Don't Miss You At All' from the same album puts me in a quiet bar with Norah singing right in front of me and the piano sounds simply....... real.

 

With Pink Floyd The Wall the HA-1 reveals so many instrumental subtleties. I swear I can hear each acoustical guitar separately in the track 'Mother' with great imaging, and the glass breaking in 'One Of My Turns' and the background tv, and all of it in this album is so clear and easy to pick out.

 

Binaural tracks are stunning on the HA-1, but the real magic happens with DSD. To be honest I've never listened to DSD before so I went straight to the Oppo website and downloaded the sample DSD files they have. :eek:. Why haven't  I been on this wagon before? Truly stunning.

 

One thing I don't see myself using much is the bluetooth or iDevice functionality. Bluetooth works great and has good range but I find the sound quality to be a little flat. I don't blame the HA-1 as I find all Bluetooth audio to sound this way. The iDevice USB input gave me a similar feeling as the Bluetooth, but that's more than likely because of the lossy files I have on the iPhone (need the space for pics and apps). The HA-1 DAC definitely improved the SQ over the iPhone DAC, but not my cup of tea.

 

Amplifier

 

- The amp section is also a thing to behold. The amp is quiet and I mean dead silent. Turning the volume to max (no music playing) I hear nothing, an empty vacuum of space like silence. The soundstage is perfect. It's just perfect. Not overly 'airy' or congested. It literally gets out of the way of the DAC and presents the music exactly how you would expect. I'm finding that I'm listening at a lower volume than usual because I don't feel the need to pump up the dynamics in the song. I'm talking about all music. Classical, Jazz, Rock, Folk, Classic Rock. I just sit back and let the amp sing in my ears. Complex music is handled with ease. The treble is so amazingly clear and there is no hint of being 'hot', 'bright', or 'sibilant'. Mids are presented naturally and perfect.

 

And then there's the bass. One word: realistic. I used to listen to my X5/e12 combo with the bass boost on because I felt the LCD-XC to be a little bright for my taste. Not so with the HA-1. With the HA-1 the bass is so realistic that if it were boosted it would lose the perfect cohesion with the rest the music, the balance with all the frequencies. Listening to Hans Zimmer 'The Dark Knight Rises' right now and the bass with the XC's is phenomenal. On the HA-1 my LCD-2 rev2 sounds too bass heavy and I always loved the bass on those cans. Actually, I was considering selling the LCD-XC because I preferred the bass on the 2's. Not anymore.

This is where relativity comes in.  

 

Relativity

 

- Every DAP, DAC or Amp I've owned has been a relative upgrade to the previous one. Each time I heard an improvement over the other, and after each upgrade the previous gear sounded flat in comparison, but I've never heard IT. Same with headphones, but now on the HA-1 each headphone presents their own character so clearly, relative to each other. Before the HA-1 the differences were always there, just not as clear.  As I've mentioned before in this thread the relative superior quality of the XC is now crystal clear compared to my other headphones and the HA-1 has allowed them to really shine in a way I was not expecting. Along my head fi journey I've auditioned, upgraded and learned each step of the way. Every upgrade was a relative improvement. Each time I felt I could do better and each time I was right. Before, I was orbiting the head fi black hole just beyond the event horizon not being sucked in. With the HA-1 I've crossed the event horizon and doubt I'll ever be able to escape the truly incredible clarity, realism, and utterly stunning presentation of the HA-1. I may be interested in more tube amps like the WA7 simply because I'm a head fi addict, or some other portable rig like the Cypher Labs Duet but as Maxx134 said in post #210 of this thread... "this Oppo is the real deal, utterly impressive".

 

Wrap up 

 

- Since I was a young lad in the mid eighties I've had an appreciation for music that thankfully the wife respects because it occupies a lot of my time and money. I've auditioned many amps and DACs in the recent past from NAD, Schiit, Auralic, Burson, etc. I've only purchased a few pieces because there was always something intangible that felt off to me (nothing beats the old vinyl and "vintage" amp I used to own). I'm big on 'bang for the buck' purchases which is why I have an ALO Pan Am, Fiio X5, and Fiio e12 currently. For my needs these sounded fine for the price and the more expensive gear never quite lived up to the price tag for me. Well now we have a product that truly hits well above its price and adds no coloration and a host of features not found on most summit fi gear. Hats off to Oppo for the superb, crystal clear, truly natural presentation on the HA-1.

 

All listening was done using the balanced output to the LCD-2 and LCD-XC. My source players were the Fiio X5 coaxial out and Macbook Pro running Audirvana+. Music files were REDBOOK CD lossless and higher quality ALAC, FLAC and DSD.


Edited by x RELIC x - 5/17/14 at 1:56pm
post #249 of 4750

^ Thanks for posting that, nice descriptive read! :smile:

post #250 of 4750
Quote:
Originally Posted by HiFiAudio View Post
 

^ Thanks for posting that, nice descriptive read! :smile:

 

+1      :beerchug:

 

 

Just as long as he is hearing a difference...that's what matters.  :rolleyes:

post #251 of 4750
So, I wake up and re-read what I wrote. Whoo boy that sounds enthusiastic! biggrin.gif

Forgot to mention that when switching to high gain the volume knob physically turns itself down. What a cool feature to see the knob moving, knowing that the HA-1 actually cares about your hearing! Hahahaha. Great!
Edited by x RELIC x - 5/17/14 at 1:28pm
post #252 of 4750
Quote:
Originally Posted by HasturTheYellow View Post

 

Bit perfect. We do not subscribe to upscaling/sampling.

 



I thought the Sabre dac chip that you use, like most modern delta sigma dac chips, upsamples by default.
post #253 of 4750

That is DAC derivative, not something that is specific to our engineering design. So we are not doing anything to the native capabilities of the chipsets, whereas a non-OPPO component will have explicit instructions in the decoder/DSP to scale/sample based on the preference of the engineering group.

post #254 of 4750
Thread Starter 
Quote:
Originally Posted by HasturTheYellow View Post

That is DAC derivative, not something that is specific to our engineering design. So we are not doing anything to the native capabilities of the chipsets, whereas a non-OPPO component will have explicit instructions in the decoder/DSP to scale/sample based on the preference of the engineering group.
Would you mind taking another stab at that explanation for the knuckle draggers among the group? Does the DAC up sample or simply decode what comes in? Are my 96 Kbps files staying at 96, or bumping up to 192 or 384? Thanks! Knuckle dragger here...
post #255 of 4750
Quote:
Originally Posted by aamefford View Post

Would you mind taking another stab at that explanation for the knuckle draggers among the group? Does the DAC up sample or simply decode what comes in? Are my 96 Kbps files staying at 96, or bumping up to 192 or 384? Thanks! Knuckle dragger here...

If I may....... I just went through a case where my portable player, coaxial out, was displaying 24bit/192kHz and the Oppo was displaying 16bit/192kHz. This had me confused as I thought the HA-1 was supposed to be bit perfect. confused.gif

I checked the same files on the laptop and the Oppo displayed bit for bit what I was playing. I would change the bit depth and sample rate from my laptop and the Oppo kept pace and would display everything exactly as it was being fed. blink.gif

Turns out I was still on a beta FW on the DAP because I was testing sonic differences vs the official FW, and in my excitement to hear the HA-1 forgot to switch back the the official FW. rolleyes.gif

Long story made short, the DAP was down sampling in the beta FW and the HA-1 caught it. I'm confident it's bit for bit, no conversion, up / down sampling here. cool.gif
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