Darkvoice 337 - A Review

[les_garten]

Originally Posted by fhuang

my point is, i use my ears to listen to headphones. i don't read headphones. plus, k340 is a 20 plus year old headphones. i doubt you can get too much numbers about it. besides, most reviews here(from search) about k340 didn't use 337 at all. and did i mention i listen to headphones, don't read my phones.

You asked how may Ohms your Headphones were? I said get a Volt OHM meter, Get it!!

[Tiff_Needle]

Hi...

I would like to inform that I'm proudly an owner of a Darkvoice 337, for about a month now!! (I must ad that I've bought it trough Jasmine! Highly recommended seller by the way)

I have to confess, I'm really impressed with it's sound. I wasn't expecting such an Hi-def sound from my headphone (DT880).

Both my phones and amp are new and have only about 20 hours of listening and my DV337 is working with stock tubes. By the way, the amp is dead quiet... no hisses or hums or anything else.

But I must confess that I was surprised with the sound quality of my new little rig. I'm used to ear my Hi-Fi setup (Proac 2.5 + Conrad-Johnson) and I must honestly say... GREAT AMP!!!

Witch tubes would you recommend as replacement. (I love a sound between lush sound and fast dynamics without losing any of the sound stage, like my CJ)

I'm thinking on getting some o-rings for the tubes and change the amps feet to a sorbo gel feet type.

Are there any feet that you would also recommend?

Once again I would like to thank you all for creating this post, since if it wasn't for all your post I've wouldn't know the existence of such a Head-Phone amp and Headphones, and would be still having the problem of listening to great music with hi-fi standards at home at night without bothering my neighbors.

Thank You!

[Skylab]

Congrats on your 337! I still love mine and use it every day. Definitely try to get some Tung-Sol 5998's for the power (front/big) tubes and some Tung-Sol mesh-plate 6SJ7GT's for the driver (rear/small) tubes.

And just as a reminder to everyone, NOS 6SJ7's take almost a full 24 hours to become hum-free. I was reminded of this last week as I burned-in a new set of the aforementioned TS mesh-plates - I had to run them for 3 days of 10 hours/day before they were totally silent. The first day they buzz really loudly all day. Then over the next 2 days they get progressively quieter. Now they are silent. This is just how they are!

[pataburd]

DT880/2003 and Darkvoice 337 are a great combination. Get some RCA 6AS7G blackplates and some JAN-Sylvania 6SJ7s and the Beyers will sound even better!

[les_garten]

Originally Posted by Tiff_Needle

Hi...

I would like to inform that I'm proudly an owner of a Darkvoice 337, for about a month now!!

I have to confess, I'm really impressed with it's sound. I wasn't expecting such an Hi-def sound from my headphone (DT880).

Both my phones and amp are new and have only about 20 hours of listening and my DV337 is working with stock tubes. By the way, the amp is dead quiet... no hisses or hums or anything else.

But i must confess that I was suprised with the sound quality of my new little rig. I'm used to ear my Hi-Fi setup (Proac 2.5 + Conrad-Johnson) and I must honestly say... GREAT AMP!!!

Wish tubes would you recommend as replacement. (I love a sound between lush sound and fast dynamics without lossing any of the soundstage, like my CJ)

I'm thinking on getting some o-rings for the tubes and change the amps feet to a sorbo gel feet type.

Are there any feet that you would also recommend?

Once again I would like to thank you all for creating this post, since if it woesn't for all your post I've wouldn't know the existence of such a Head-Phone amp and Headphones, and would be still having the problem of listening to great music with hi-fi standards at home at night without bothering my neibours.

Thank You!

I have a 337SE and I get some transformer HUM with the Vol controls up around 12:00, how about you guys?

TS 5998's, great tubes!!


.

[Skylab]

No, my 337 does not hum.

[Tiff_Needle]

Originally Posted by Skylab

Congrats on your 337! I still love mine and use it every day. Definitely try to get some Tung-Sol 5998's for the power (front/big) tubes and some Tung-Sol mesh-plate 6SJ7GT's for the driver (rear/small) tubes.

And just as a reminder to everyone, NOS 6SJ7's take almost a full 24 hours to become hum-free. I was reminded of this last week as I burned-in a new set of the aforementioned TS mesh-plates - I had to run them for 3 days of 10 hours/day before they were totally silent. The first day they buzz really loudly all day. Then over the next 2 days they get progressively quieter. Now they are silent. This is just how they are!

Thank You for your input! I'll try them on my DV337.

I've noticed on one of your photos of the DV337, that you have replaced the amplifiers feet. Do you have any recommendations?

Originally Posted by pataburd

DT880/2003 and Darkvoice 337 are a great combination. Get some RCA 6AS7G blackplates and some JAN-Sylvania 6SJ7s and the Beyers will sound even better!

Unfortunately my DT880 are not the 2003 model! I've been told that the 03 model is more neutral than the 05 model. But hey... They sound great with the DV337. I found the 2005 model+dv337 to have the High Frequencies a little overemphasized. Maybe with a little more burning...

I'll try to replaced my tubes by those recomended by SkyLab. As soon as I get them I'll post my opinion on them.

Cheers,

Tiff

[Skylab]

Originally Posted by Tiff_Needle

I've noticed on one of your photos of the DV337, that you have replaced the amplifiers feet. Do you have any recommendations?

I use a very high-tech device - a hockey puck Yes, actual hockey pucks. They are very effective at vibration control, they look nice, and they are very cheap.

[Skylab]

Also, the 2005 DT880's are much better than the 03 versions, IMO.

[Tiff_Needle]

Originally Posted by Skylab

I use a very high-tech device - a hockey puck Yes, actual hockey pucks. They are very effective at vibration control, they look nice, and they are very cheap.

LoL

Well maybe for you it's cheaper in the US, but since I'm in Portugal and they aren't huge fans of hockey I think maybe it would be more expensive... hehe

I'm going to Canada this summer so... I'll look into hockey pucks hehe

[les_garten]

Originally Posted by Tiff_Needle

LoL

Well maybe for you it's cheaper in the US, but since I'm in Portugal and they aren't huge fans of hockey I think maybe it would be more expensive... hehe

I'm going to Canada this summer so... I'll look into hockey pucks hehe

Here's what you want to find:






I have a set of these I bought 30 years ago and they are awesome. They are Sorbothane and are 3" in diameter.

My opinion, Hockey Pucks are too hard to act as vibration traps, but to each his own.

.

[frank99]

I found a customized DV337 made by darkvoice on the following web site. It basically a DV337SE plus using better quality components, cables, and increasing the coupling capacitors from 51uF to 100uF. It was reported that the bass was improved a lot.

Just want to share this info with other DV337 owners. And I would like to know whether the output coupling capacitors are the bigger the better, is there any side effects on that?


the DV337 customized link (many pictures)

[les_garten]

Here's a pic of my 337SE for reference.
>>
>>


.

[fhuang]

Originally Posted by Tiff_Needle

LoL

Well maybe for you it's cheaper in the US, but since I'm in Portugal and they aren't huge fans of hockey I think maybe it would be more expensive... hehe

I'm going to Canada this summer so... I'll look into hockey pucks hehe

besides pucks, anybody using any rubber feet, stand or any other thing for the amp? really, any difference without extra feet? i should upgrade my cable first? right now i'm using ps audio punch.

[ChrisHopcroft]

So, I just bought a pair of Senn HD650s and a Darkvoice 337. Only around 20 hours of burn in so far, but oh my goodness ... amazing!