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Audiophile by accident . The Hobby: An Unexpected Journey - Page 20

post #286 of 461
Thread Starter 
Quote:
Originally Posted by Andrew_WOT View Post


How about Berkeley Alpha USB, it's arguably the best money no object USB to SPDIF converter today but it's XMOS based, it's covered here

15 USB/SPDIF converters shootout

 

 

Quote:
Originally Posted by Andrew_WOT View Post


Dan, no offense, I really like your writing style, it's really entertaining and fun to read, but I guess getting someones else perspective on the product would be really beneficial and helpful for everyone, including the vendor.

 

 

I have talked to Audiobyte and Adam (Author of  the 15 USB/SPDIF converters shootout ). Nucu agreed to send a demo unit to Adam and Adam agreed to compare it to the Berkley :D

 

So I managed to pull this through! :D

post #287 of 461

And the crowd gone wild :))

post #288 of 461

popcorn.gif

post #289 of 461
Quote:
Originally Posted by dan.gheorghe View Post

 

 

 

 

I have talked to Audiobyte and Adam (Author of  the 15 USB/SPDIF converters shootout ). Nucu agreed to send a demo unit to Adam and Adam agreed to compare it to the Berkley :D

 

So I managed to pull this through! :D

 

Really interested myself in the above review. Meanwhile, I have a Hydra on my desk today and I will start comparing it with the Audiophilleo 2. :)


Edited by negura - 5/31/13 at 2:38pm
post #290 of 461

Dan,

 

I was thinking about your DAC-V1 impressions and it made me curious about what your typical volume settings were for the LCDs and the HD-800? That is, did you have to use more volume for the LCDs than the HD-800?

 

For my HD-650 85% would be very loud from the DAC-V1...

post #291 of 461
Quote:
Originally Posted by dan.gheorghe View Post
I have talked to Audiobyte and Adam (Author of  the 15 USB/SPDIF converters shootout ). Nucu agreed to send a demo unit to Adam and Adam agreed to compare it to the Berkley :D

 

So I managed to pull this through! :D

Very nice, thanks Dan!

Now the wait

popcorn.gif

post #292 of 461
Thread Starter 

 

BAD EDIT


Edited by dan.gheorghe - 6/6/13 at 12:53pm
post #293 of 461
Thread Starter 

 

Previous:

 

Naim DAC-V1 review

 

Bakoon HPA-21 Review

 

Hey guys,

I have got the chance to listen to the famous Bakoon HA-21. Who do you think I have to thank again? Of course, DarKu!

Bakoon HPA-21

After I have read a little about it, it made me really curious. This amp seems to bring something new. It has a current output designed for low impedance planars like theAudeze for example.

The HPA-21 is a truly unique product that is the world’s one and only current driving headphone amplifier.
By incorporating the SATRI Circuit technology, our years of R&D effort in current amplification technology is now perfectly refined for headphone listeners.

Unlike the conventional voltage driving method, the HPA-21’s current driving method achieves far superior driving precision, power and distortion level unmatched by any other available conventional headphone amplifiers. In addition, our latest analogue battery power supply technology has been meticulously analyzed and employed into the HPA-21, which further enhances the performance of the circuit to the next level.

DarKu explains in detail what the SATRI Circuit is and does, as well as other technical aspects of the HPA – 21 here.

The amp looks very good and it is smaller than I thought it would be.

P1250698

One thing I love about it is that it runs on battery and you don’t have to care about power cables with it.

I have never heard a headphone amp to be better than Conductor / Soloist until now. Will this be the one?

Let’s listen to some songs with it, shall we?

The tests were made with ConductorAudeze LCD3Audeze LCD2Sennheiser HD800.

(Audeze from the current output and HD800 from the voltage output)

The main tests were made with Audeze from the currend output.

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Pink Floyd – Time

The sound is indeed very clear and transparent. The bells were clear as a whistle. Also the positioning was very good. The details are amazing. Unfortunately it lacked a little energy & body compared to conductor.

Dire Straits - Ride Across The River

WOW. The sound is incredibly clear. No distortions , no nothing. It is just you and the music.  The guitar was very clear but lacked some body and extension. The instruments were well placed into space.

Leonard Cohen – Dress Rehearsal Rag

The scene presented itself very wide and the guitars were incredibly detailed. It puts more air between the instruments. When the chorus enters into the melody it was really impressive how well was placed into 3d space.

Bozzio Levin Stevens – Book of Hours

Incredible! I have never heard such a clear and detailed sound from a headphone amp before.  The sound was very opened, the sound was very multi layered and the instruments really tickled my years.

Franz Schubert – Gloria in excelsis Deo

As I suspected, this amp would be great with classical music. The wide soundstage and airy sound made it perfect for this song. The chorus and voices were extraordinary put on different layers.

Infected Mushrooms – Wanted To & Nation of Wusses

WOW did not expect this. The bass & all the sound was very fast and very very controlled. I was quite sleepy when I wrote this review. The bass really woke me up and made me toe tap.

P1250746

Conclusions

This little guy really impressed me with the Audezes from the current output.

I have never heard a headphone amp to sound so clear, so detailed & so transparent.

Until now I thought Soloist was the most neutral amp I have ever heard, but I think Bakoon is even more neutral.

The sound is very clean, and I think there are more factors that contribute to this : the current ouput and the battery.

P1250740

The normal voltage output was ok but It did not impress me too much with either Audezeor HD800.

Be careful with HD800 and the current output. I have put them in with 10% volume and I thought I burned them. They sounded extremely loud. That output is NOT meant for high impedance headphones.

From the voltage output they sound very clear and detailed but they haven’t got sufficient body for my tastes.

They should really do something about the current output as you could accidentaly burn your headphones if you insert the wrong ones there.

The gain switch is just for the current output and it has low and high. The low is useless with audeze as it hasn’t got enough volume and if you try to increase it, it starts to distort badly.  Between the low and high gain is a too larger gap. I used the knob at maximul 9 o clock as more than that was too much.

I understood that Bakoon will lower the gain with 6 db in the future.

P1250752

The battery charges while the amp is turned off. It would have been great if it would have recharged as you listen, but maybe this was better for the sound quality, I don’t know.

Compared to Conductor/Soloist it has a cleaner sound, better transparency, more details and wider soundstage.

Would I change conductor for it? No. Why? Because it has better PRAT and energy, it has  more body, better dynamics, a smoother sound, better bass and it has more musicality. I find tha Burson achieved a very important balanced with it.

P1250757

But overall the Bakoon is a very good amp, in some aspects the best I have heard, and I think I will miss it.

PROS

  • Cleanest sound I have heard in a headphone amp
  • Very good transparency
  • Very detailed
  • Wide soundstage
  • Clean and nice design
  • Powered by battery

Cons

  • Lacks some body
  • some design issues
  • lacks musicality

P1250764

Next:

The Sexy Martin Logan Mikros 90 

 


Edited by dan.gheorghe - 8/4/13 at 7:39am
post #294 of 461

How long does it hold it's charge?

post #295 of 461
Thread Starter 
Quote:
Originally Posted by preproman View Post

How long does it hold it's charge?

Somewhere from 6 to 8 hours.

post #296 of 461
Thread Starter 

Hey guys,

 

I was away for a month due to a lot of work and then some traveling :)

 

Meantime I have bought a Hydra  and a big ass coax cable(1.5m, length recommended from the manufacturer)  from http://www.audioalchemy.ro/ . I also heard the new MSB Analog Dac . Hope I have the time to review them soon. :D

post #297 of 461
Thread Starter 

I am freaking amazed. Hydra and W&M audio dc-01 coax cable transformed my hd800 into bass monsters. It changed the tonality of hd800. It is now full body. I just looove it!!!

post #298 of 461
Thread Starter 

The last week I have suffered from otitis externa. First time I have had such thing. Painful sucker. 

This was painful for the hobby too, as I cannot hear with one ear.:

man_using_ear_horn_700-03508155.jpg

 

Has any of you guys had one recently? I feel that I cannot hear with the other ear as well too? May it be that the good year actually isn't that good? (I will do a audiometry after this) . Already done an online test. The funny thing is that I have something stuffed (by the medic) in the infected ear and cannot hear with it well at all, and I got the result:

"Your result suggests that you do not have a hearing loss."

However I am curios if by the time you had one ear infected, you heard well with the other.

post #299 of 461
Chill Dan, everything is going to be fine. I used to have otitis three times a year and I'm great. smily_headphones1.gif
post #300 of 461
Thread Starter 

Are you? Are you really ? :)) ( kidding )

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