Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Lavry black initial impressions
New Posts  All Forums:Forum Nav:

Lavry black initial impressions - Page 3

post #31 of 287
Quote:
Originally Posted by thomaspf
Maybe, I probably had 300 hours or less on that amp.

Cheers

Thomas

Most tubes last atleast 2000-5000 hours .... even new production tubes. But the tube type you use has a history of going bad or getting noisy much sooner. If you have some spares lying around ..... it may be worth the time to see what happens if you put in new tubes.
post #32 of 287
I'd looked at Lavry DACs over a year ago when I was looking for a new source, and almost bought the Lavry Blue DAC, which if memory serves is larger and slightly more expensive.
Since not much is said about Lavry products out of the Pro Audio world, (although I can see that changing with this well priced product) how does the Lavry Black compare purely as a DAC to the Lavry Blue? Are they similar as far as pure D/A conversion goes, or has the passage of time allowed Lavry to build a superior DAC for a lower price?
Thanks for the posts and info, Thomas.
post #33 of 287
According to Lavry themselves the the lavry black da10 should sound exactly like the lavry blue. They just differ on form factor, expandibility and features.
post #34 of 287

post #35 of 287
As for initial impressions...This is one fantastic amp/dac. It is very smooth and effortless yet, detailed and resolving. I certainly like it better then the DAC1 and 901 at this point. The sound itself best reminds me of a nice M3/GS1 as far as sonic traits go.

Ill report back after Ive spent some more time with it.

I will say this however, it might not be ideal for those that like speed and forwardness (Grado guys) but for me, a Senn guy, I simply love it.

on a side note it measures about 8"x10"
post #36 of 287
Quote:
Originally Posted by darkless
Anyone in the US who has an AQVOX USB 2 D/A? I'd love to see how the two of them compare
I am thinking about doing this. My Aqvox is stuck in customs right now I might end up with a DAC1-USB2DA-DA10 shootout on hand, maybe even in time for the next LA Head-fi meet, now wouldn't that be a ball!

BTW the pics look great, I can't wait to figure out what is behind the Lavry!
post #37 of 287
Cant wait post here again without saying anything. My unit is on the way to Halifax by FedEx. Hope everything goes all right. I will post some pics in here once I get the baby.

You guys make me so exciting

Edison
post #38 of 287
Quote:
Originally Posted by edisonwu
Cant wait post here again without saying anything. My unit is on the way to Halifax by FedEx. Hope everything goes all right. I will post some pics in here once I get the baby.

You guys make me so exciting

Edison
Can you tell me where you ordered the DA10?
-Nathan
post #39 of 287
Quote:
Originally Posted by some1x
Can you tell me where you ordered the DA10?
-Nathan
Please check you PM
post #40 of 287
I noticed a couple sheets of paper next to the box in the photos. The Lavry Blue manual contains a surprisingly detailed circuit description...is there anything like that with the Black? Unfortunately, the manual doesn't seem to be available online yet.

I'm excited waiting for more impressions...I can't believe I'm so eager to blow money on this...^@*$ Head-Fi!

Iron_Dreamer, if you get all those in time, I'd love to audition them at the LA meet(hopefully there's still room...should get on that).
post #41 of 287
Quote:
Originally Posted by some1x
Can you tell me where you ordered the DA10?
-Nathan
I'd be interested to know that as well.
post #42 of 287
Lavry will not be doing a second run of the DA10's until February. Their vendors got around 10 each, at the most. When I ordered mine "Sound Pure" had maybe 3 left... this was only after speaking with Lavry directly and trying to track one down... which they were very willing and happy to do.
post #43 of 287
I knew Lavry uses tons of resistors as integral part of their DAC design, but that circuit board has ridiculous amount of resistors!

Which modder will attempt to change out the resistors first ?

Also, not a single part is socketed. All-surface-mounted-modder's-nightmare.

And, God, please don't call it Sennheiser of DAC's. Not that...
post #44 of 287
Thread Starter 
Most of the resistors you see are the components for the discrete analog volume control. Then there are two FPGAs that integrate the analog switches for the matrix. 60 steps for each channel make for a lot of components.

However, this volume control is actually calibrated and has very precise channel matching.

The other unique feature of the Lavry DACs is their dejitter circuit which uses a VCXO and a buffer to synchronously reclock the digital signal without changing the bits. This is quite a bit different than the "unique" Ultralock from Benchmark which to my knowledge just happens to be an AD1896 chip. Again this accounts for some complexity on the board.

The output stages for the headphone amp are build from discrete transistors instead of integrated op-amps which further adds to the component count.

grandenigma1 might want to check for the line ouputs but I think this true for those as well.

I think Woodgy mentioned before that this unit is not just small variations to a chip manufacturers reference design but a lot of grounds up enginering.

Now, the sound .....

I like it a lot and more so with my ER-4S than with my HD600.

Cheers

Thomas
post #45 of 287
Thread Starter 

DA10 RMAA measurments

Hi,

I managed to do some RMAA measurements with my Juli@ in balanced mode. The chain was coax digital output from the Juli@ into the DA10 and then balanced analog back to the Juli@.

Frequency response (from 40 Hz to 15 kHz), dB: +0.00, -0.00 Excellent
Noise level, dB (A): -94.6 Very good
Dynamic range, dB (A): 95.4 Excellent
THD, %: 0.0006 Excellent
IMD + Noise, %: 0.0052 Excellent
Stereo crosstalk, dB: -93.2 Excellent
IMD at 10 kHz, %: 0.0063 Excellent

more to follow (24/96 etc.) when I get my Lavry back.

Edited: I made all the measurements into links. Cick on them to see the matching graph.

Happy new year

Thomas
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Lavry black initial impressions