Oppo HA-1 Impressions Thread
post-10750227
Post #1,306 of 5,289

Badas

Headphoneus Supremus
Joined
Jul 9, 2014
Messages
3,240
Reaction score
833
Joined
Jul 9, 2014
Posts
3,240
Likes
833
When using the remote to control volume does anyone else find it twitchy?
 
Sometimes I push vol + quickly to raise it .5db and it doesn't move or actually goes down .5db.
 
I find I have to hold button down and raise up a lot and then bring back down.
 
     Share This Post       
post-10750232
Post #1,307 of 5,289

pragu

Head-Fier
Joined
Oct 8, 2013
Messages
85
Reaction score
13
Joined
Oct 8, 2013
Posts
85
Likes
13
Do you think the HA-1 could safely support a monitor on the part behind the vent? I know it gets hot, but not plastic-melting hot, and it sure would clean up my workstation...
 
Also, do we have any work on Linux compatibility in the future, and the USB audio that will be included in Android L?
 
     Share This Post       
post-10750239
Post #1,308 of 5,289

gotoma8

Head-Fier
Joined
Dec 20, 2011
Messages
89
Reaction score
16
Joined
Dec 20, 2011
Posts
89
Likes
16
Good to know about the Balanced output!  I am getting my Heimdall 2 cable for my HD800.  I hope it brings it to another level!  What balance cables are others using with the HA-1/HP or the HA-1/HD800 combo?

Thanks
 
     Share This Post       
post-10750252
Post #1,309 of 5,289

JML

1000+ Head-Fier
Joined
Oct 26, 2001
Messages
1,164
Reaction score
115
Joined
Oct 26, 2001
Posts
1,164
Likes
115
  Do you think the HA-1 could safely support a monitor on the part behind the vent? I know it gets hot, but not plastic-melting hot, and it sure would clean up my workstation...
 
 
IMHO, it gets too hot for you to place anything on top of the case.  Remember, the amp is designed to radiate heat from the case and to allow air to vent out the top.  If you put anything on top of the case, even if only behind the case, it will restrict the dissipation of the heat.  And likely do something harmful to what's on top.  I wouldn't want the hot air going in front of a monitor, either.
 
The temperature is high enough that I wouldn't put anything made of plastic on top of the HA-1; even if it doesn't melt, plastic can deform and age prematurely from heat.
 
     Share This Post       
post-10750254
Post #1,310 of 5,289

Tyler J

100+ Head-Fier
Joined
Jan 5, 2007
Messages
161
Reaction score
11
Joined
Jan 5, 2007
Posts
161
Likes
11
I just couldn't stand always looking at the speaker cables/adapter hanging off the front of the HA-1 if I decided to use the headphone out to amp solution.

I have continued to listen to both and with SACDs from the BDP-83 the P5 is consistently a bit more transparent and the bass is more controlled. The other advantage is bass management. I think it would be very hard to get my sub to integrate perfectly without some sort of external crossover. I also intend to use the pre in a 2.1 home theater and with video games on occasion. The ability to redirect the bass and protect the Pulsars is significant to me.

I agree that the HA-1 is a great piece and I agree with a former poster that it is ideal as a desktop solution. It is just not ideal in my situation.
 
     Share This Post       
post-10750273
Post #1,311 of 5,289

Badas

Headphoneus Supremus
Joined
Jul 9, 2014
Messages
3,240
Reaction score
833
Joined
Jul 9, 2014
Posts
3,240
Likes
833
   
IMHO, it gets too hot for you to place anything on top of the case.  Remember, the amp is designed to radiate heat from the case and to allow air to vent out the top.  If you put anything on top of the case, even if only behind the case, it will restrict the dissipation of the heat.  And likely do something harmful to what's on top.  I wouldn't want the hot air going in front of a monitor, either.
 
The temperature is high enough that I wouldn't put anything made of plastic on top of the HA-1; even if it doesn't melt, plastic can deform and age prematurely from heat.

I agree.
 
Mine gets very hot. A lot hotter than my Marantz Power amps running extreme sound levels.
 
     Share This Post       
post-10750315
Post #1,312 of 5,289

x RELIC x

Headphoneus Supremus
Joined
Mar 8, 2014
Messages
11,971
Reaction score
7,568
Location
The West Coast, Canada
Joined
Mar 8, 2014
Location
The West Coast, Canada
Posts
11,971
Likes
7,568
When using the remote to control volume does anyone else find it twitchy?

Sometimes I push vol + quickly to raise it .5db and it doesn't move or actually goes down .5db.

I find I have to hold button down and raise up a lot and then bring back down.

Yup.

The volume pot is not a digital device so it's bound to be twitchy with input from the remote. The remote volume control and volume display is actually just an approximate representation of the analog signal so some inaccuracy is expected.

I'm just glad to have these features as the alternative would be much less convenient.
 
     Share This Post       
post-10750333
Post #1,313 of 5,289

Badas

Headphoneus Supremus
Joined
Jul 9, 2014
Messages
3,240
Reaction score
833
Joined
Jul 9, 2014
Posts
3,240
Likes
833
Yup.

The volume pot is not a digital device so it's bound to be twitchy with input from the remote. The remote volume control and volume display is actually just an approximate representation of the analog signal so some inaccuracy is expected.

I'm just glad to have these features as the alternative would be much less convenient.

Oh agreed.
 
It was one of the big selling points to me. I never want to get up and down to adjust the volume.
So it is guessing the volume on the display. So would that mean that if the volume dial moves it is actually adjusting the volume?
 
     Share This Post       
post-10750347
Post #1,314 of 5,289

x RELIC x

Headphoneus Supremus
Joined
Mar 8, 2014
Messages
11,971
Reaction score
7,568
Location
The West Coast, Canada
Joined
Mar 8, 2014
Location
The West Coast, Canada
Posts
11,971
Likes
7,568
Oh agreed.

It was one of the big selling points to me. I never want to get up and down to adjust the volume.
So it is guessing the volume on the display. So would that mean that if the volume dial moves it is actually adjusting the volume?

Yeah, something like that.

This is from HasturTheYellow (Oppo Digital rep) in an earlier post regarding the volume:

"The algorithm used to convert the absolute analog signal to its digital representation on the front panel is done with only 1-bit of information. It is an approximation, not an absolute, which is why you will see the front panel show some amount of inconsistency in how it performs. This is something we are looking into, but with such a small sample it may not be something that we can enhance through future firmware releases."

Hope this helps. :wink:
 
     Share This Post       
  • Like
Reactions: SharpEars
post-10750686
Post #1,315 of 5,289

akhyar

500+ Head-Fier
Joined
Apr 3, 2013
Messages
953
Reaction score
87
Joined
Apr 3, 2013
Posts
953
Likes
87
Good to know about the Balanced output!  I am getting my Heimdall 2 cable for my HD800.  I hope it brings it to another level!  What balance cables are others using with the HA-1/HP or the HA-1/HD800 combo?


Thanks

I'm using WyWires Red balanced cable for my HD800 to HA-1.
Heimdall2 was in my radar as I used Heimdall i/c and s/c on my previous hi-fi rig but the price of the cable is way above my budget.
I'm also worried if the SPC on Heimdall2 cable will tilt the HD800 more towards the high frequency as I can't audition the cable and have to buy blind
 
     Share This Post       
post-10751017
Post #1,316 of 5,289

Maxx134

Headphoneus Supremus
Joined
Oct 15, 2010
Messages
4,747
Reaction score
1,812
Location
NYC
Joined
Oct 15, 2010
Location
NYC
Posts
4,747
Likes
1,812
^
Your cans sound better (to you) with high gain. Fair enough. That does not mean that all cans sound better or need to use high gain.
I use normal gain and it works just fine for me, with plenty of headroom too. :smile:
Woops Sorry I overlooked that I was actually using the single ended headphone jack because of the stock he560 cable..
So high gain was not that loud on headphone jack only, as I was not using the more powerful balanced xlr out.

On balanced out, the high gain Setting would be VERY loud if using a can like th600 & may be overkill..
So you have a valid point. :wink:

Anyway, on another note, balanced still sounds better even in normal gain at low volumes..
:)

When using the remote to control volume does anyone else find it twitchy?

Sometimes I push vol + quickly to raise it .5db and it doesn't move or actually goes down .5db.

I find I have to hold button down and raise up a lot and then bring back down.
What is strange is that it was better in the beginning of ownership and now it has gotten a bit twitchy exactly like you stated. .


Do you think the HA-1 could safely support a monitor on the part behind the vent? I know it gets hot, but not plastic-melting hot, and it sure would clean up my workstation...
I think to tone down the heat we need bigger feet on bottom..
 
     Share This Post       
post-10751129
Post #1,317 of 5,289

Maxx134

Headphoneus Supremus
Joined
Oct 15, 2010
Messages
4,747
Reaction score
1,812
Location
NYC
Joined
Oct 15, 2010
Location
NYC
Posts
4,747
Likes
1,812
....

Reference my post earlier regarding Ifi iUSB, I can confirm that with the Gemini Cable and Purifier, it makes a substantial difference. Plenty of reviews etc... out there, it's more money I know but it really does make a difference. 
I believe it that a cleaned up, or removed power from the usb would benefit the digital signal from interference.
So I am interested in trying this on my HA-1..

BUT..

From what I have observed,
The "IFI Gemini Usb Cable" is actually redundant(!)...
as the "IFI - MICRO iUSB POWER SUPPLY" does the same thing(removing usb power),
While also replacing it with a separate power supply that they like to give special hyperbole descriptive names to...
:p

To state that both solutions sound better together, means the one is not doing its job of isolating the source usb power, as that is the only thing they perform in common.

So if you like to have a clean USB,
Do you need to get BOTH the wire AND the power supply?..
For $200 each? (!)...

Why do that?..
Why spend about $400? For both??...

When you have an actual BETTER solution for just $100..!!!

What's the schiit I state?
The "WYRD USB DECRAPIFIER"
From schiit is arguably BETTER than BOTH (!)...
How?
Not only does it separate and add it's own power supply to the line,
But ALSO has a USB repeater to "regenerate" the digital signal :wink:

ALSO you can use your own preferred USB cables instead of some forced use of a "Gemini Cable"....

Will common sense prevail?
Up to you!
:p
:wink:
:)
 
     Share This Post       
post-10751155
Post #1,318 of 5,289

Smarty-pants

100+ Head-Fier
Joined
Dec 8, 2013
Messages
418
Reaction score
85
Joined
Dec 8, 2013
Posts
418
Likes
85
^
Your cans sound better (to you) with high gain. Fair enough. That does not mean that all cans sound better or need to use high gain.
I use normal gain and it works just fine for me, with plenty of headroom too. :smile:
Woops Sorry I overlooked that I was actually using the single ended headphone jack because of the stock he560 cable..
So high gain was not that loud on headphone jack only, as I was not using the more powerful balanced xlr out.

On balanced out, the high gain Setting would be VERY loud if using a can like th600 & may be overkill..
So you have a valid point. :wink:

Anyway, on another note, balanced still sounds better even in normal gain at low volumes..
:)

When using the remote to control volume does anyone else find it twitchy?

Sometimes I push vol + quickly to raise it .5db and it doesn't move or actually goes down .5db.

I find I have to hold button down and raise up a lot and then bring back down.
What is strange is that it was better in the beginning of ownership and now it has gotten a bit twitchy exactly like you stated. .


Do you think the HA-1 could safely support a monitor on the part behind the vent? I know it gets hot, but not plastic-melting hot, and it sure would clean up my workstation...
I think to tone down the heat we need bigger feet on bottom..

Oh yes of course, balanced definitely sounds better in most cases.

I don't think bigger/taller feet would matter. It is a CLASS A amp which will always run very warm when used normally.
This isn't detrimental to the unit, but the unit is also designed to dissipate heat. Not just from the vents, but it uses the whole chassis,
sort of like "heatsinks" do. The only thing that could make is cooler is the use of a fan, but that introduces noise so Oppo decided against that.
 
     Share This Post       
post-10751968
Post #1,319 of 5,289

SpudHarris

Headphoneus Supremus
Joined
Jan 30, 2009
Messages
3,028
Reaction score
86
Joined
Jan 30, 2009
Posts
3,028
Likes
86
I believe it that a cleaned up, or removed power from the usb would benefit the digital signal from interference.
So I am interested in trying this on my HA-1..
 
I can assure you it makes a difference. Not so much the Gemini Cable but the iUSB. I didn't buy them together... When I heard the difference the iUSB made I bought the Gemini Cable to squeeze what ever additional benefit it could bring. I would say I heard a difference using the Gemini but realistically it was probably placebo, certainly not night and day. With the iUSB everything seems clearer and the background is pitch black.
 
     Share This Post       
post-10752181
Post #1,320 of 5,289

Maxx134

Headphoneus Supremus
Joined
Oct 15, 2010
Messages
4,747
Reaction score
1,812
Location
NYC
Joined
Oct 15, 2010
Location
NYC
Posts
4,747
Likes
1,812
I can assure you it makes a difference...

... With the iUSB everything seems clearer and the background is pitch black.
I do believe you 100%
As a pure power will not create problems with interference.
But these problems of dirty power interference can also happen inside the cable.

Also I have been reading up on why the usb cable would make a difference in real world conditions and it is not only interference but the high data volume from HD music which is susceptible to data corruption from overhead and bits with higher priority turning making a difference,
so the need of good usb cable becomes important..

Point is that everything digital looks perfect "on paper" but not in real world.
 
     Share This Post       

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top