Well guys, I sold my beyerdynamic a1 amplifier. It was a great match for the Audeze LCD-2s, however the reason I sold it is because I finally got my tubed Sansui 500a in operation. Before I got the beyerdynamic, I used this receiver with the Audeze LCD-2s with great results, the unfortunate thing is it had issues at the time and it took me until a couple weeks ago to resolve them. I purchased the beyerdynamic a1 thinking that it would be the dedicated amplifier for the LCD-2s.
However, once the Sansui 500a came into the picture, I decided I would do a shootout between the beyerdynamic a1 and the Sansui 500a to see which I would prefer for the LCD-2s. I was also curious as well to see how the Sansui 500a would stand against a standalone, dedicated headphone amplifier with an MSRP north of $1000.
To conduct this shootout, I decided to involve my wife's ears as she is a lot less biased than I am and also has not invested the 40 hours into the Sansui to restore it. I figured a second opinion would be smart in order to properly ascertain which one is really better.
With that, I conducted the following listening test. I chose 5 songs for 5 different categories where I felt would be important to listen for between the two. While I had my wife listen, I would play one minute of the song on each, and I had her face away from both units so she did not know which one she was listening to. I also changed the order of which one I had her listen to so that she really didn't know.
The test went as follows. Between the two, I would put which one is better by indicating a '+' and also I would indicate how much better by using one, two or three '+'s.
+ = Slightly better
++ = A decent amount better
+++ = Quite a bit better
Category 1: Rhythm
Rhythm, as in the motion of the music, the space between the notes. How well does the unit make you feel the rhythm of the music?
Song: Stevie Wonder - Superstition
Rating:
Sansui ++
beyerdynamic
Category 2: Detail Retrieval
How much into the recording can you hear? Terms such as space, atmosphere, microdetail apply here.
Song: Acoustic Alchemy - Mr. Chow
Rating:
Sansui +++
beyerdynamic
Category 3: Fidelity
How natural does the recording sound? As in, do instruments have proper timbre? How believable does it sound?
Song: Joni Mitchell, A Case Of You
Rating:
Sansui +
beyerdynamic
Category 4: Bass
What is the quality of the bass? Loose, flappy, overextended, or is it lean, tight and controlled?
Song: Bela Fleck and the Flecktones - Flight of the Cosmic Hippo
Rating:
Sansui
beyerdynamic +++
Category 5: Imaging
How well can you pinpoint instruments and do they appear to be in their own space?
Song: Jazz at the Pawnshop, Now's The Time
Rating:
Sansui
beyerdynamic ++
As you can see, the Sansui won in 3/5 categories, and impressively was much more detailed sounding. Overall, the Sansui has a richer, more compelling and musically appealing sound. Not surprisingly, the beyerdynamic has far better bass. Perhaps on the LCD-2, you might suggest that this is an important area but, not for my listening preference. I'm fine with a looser sounding bass and trading off for better rhythmic performance and detail retrieval.
Obviously, there could be many reasons why the beyerdynamic a1 was not better in many of these categories. It could be not as good of a match, perhaps the Sansui 500a really is just a better unit in those other areas, and of course some of it is listening preference. I didn't hear any of these recordings in the studio when they were recorded so my reference point (and my wife's) is certainly not an accurate representation of the music, so the main criterion here was enjoyability.
Anyway, I thought I would share as I found it rather interesting the Sansui 500a came out on top in many important areas. It being a nearly 50 year old piece of equipment (restored, of course) compared against a dedicated headphone amplifier that is only a few years old with much newer technology, and holding its own just fine, suggests that you might be able to get away with receivers with headphone outputs sometimes. I would still suggest a dedicated headphone amplifier is the way to go, since receivers can be a crapshoot, but if you are on a short budget (as I was) you could perhaps find synergy with an integrated or receiver.