[seeteeyou]

 
Do you remember the other options?
 
Are the other options still possibilities or was one configuration settled upon?

 
The best bet would be sending Masuda-san an e-mail and he'll let us know
 
http://www.masskobo.com/e/main-contact.htm
 
I'm copying the e-mail I received as follows
 

I will ship the 404 was completed.
 
And I will ask you a question about the connection of balance input and output.
 
Please choice each one.
I make by your instructions.
 
2.5mm 4Pole Phono Jack
1. Input - General , Output - General
2. Input - AK , Output - General
3. Input - General , Output - AK
4. Input - AK , Output - AK
 
Note
<General>
Tip : L+
Ring1 : R+
Ring2 : L-
Sleeve : R-
 
<AK>
Tip : R-
Ring1 : R+
Ring2 : L+
Sleeve : L-
 
I'm waiting your reply.

 

---

 
The choice could depend on what connectors are preferable
 
http://e4ua.blog.fc2.com/blog-entry-185.html
http://e4ua.blog.fc2.com/blog-entry-383.html
 
2.5
http://ns-t.com/products/trans/nsit47.html
http://item.taobao.com/item.htm?id=39899035889
http://item.taobao.com/item.htm?id=40386154063
http://item.taobao.com/item.htm?id=40402753720
http://item.taobao.com/item.htm?id=40781325678
http://item.taobao.com/item.htm?id=40795196400
http://item.taobao.com/item.htm?id=41667262254
http://item.taobao.com/item.htm?id=41685401546
http://item.taobao.com/item.htm?id=41820967160
http://item.taobao.com/item.htm?id=41839502148
http://item.taobao.com/item.htm?id=43784532529
http://item.taobao.com/item.htm?id=44794091455
http://item.taobao.com/item.htm?id=44892960165
http://item.taobao.com/item.htm?id=45046146137
http://item.taobao.com/item.htm?id=45142907050
http://oyaide.com/catalog/products/2-5mm_4.html
http://www.plussoundaudio.com/diy/connectors.html
http://www.e-earphone.jp/shopdetail/000000044995/
http://www.e-earphone.jp/shopdetail/000000044996/
http://item.rakuten.co.jp/e-earphone/4571263352848/
http://item.rakuten.co.jp/e-earphone/4571263352862/
http://www.dma-audio.com/product_detail.php?id=2570
http://store.shopping.yahoo.co.jp/venturecraft/bp-254s.html
http://store.shopping.yahoo.co.jp/venturecraft/bp-254b.html
http://labkable.com/products/日本進口碳纖維2.5mm四極平衡插頭.html
http://www.doublehelixcables.com/store/index.php?main_page=product_info&cPath=18&products_id=155
http://www.doublehelixcables.com/store/index.php?main_page=product_info&cPath=18&products_id=166
http://www.norneaudio.com/litzheim/Furutech-Valab-Oyaide-Shure-Denon-diy-headphone-cable-connector/Eidolic-Astell-Kern-AK240-trrs-2-5-mm-balanced-4-pole-connector-diy
http://www.norneaudio.com/litzheim/Furutech-Valab-Oyaide-Shure-Denon-diy-headphone-cable-connector/Eidolic-Astell-Kern-AK240-trrs-2-5-mm-balanced-4-pole-connector-carbon
http://www.aliexpress.com/store/product/2-5mm-4-poles-Oyaide-Carbon-Shell-Stereo-Male-Plug-Audio-Connector-DIY-Solder-adapter/804746_2042447474.html
http://www.lunashops.co.uk/goods-3651.html
 

---

 
3.5
http://ns-t.com/products/trans/nsit48.html
http://oyaide.com/catalog/3-5mm_4.html
http://oyaide.com/catalog/products/p3-54g.html
http://oyaide.com/catalog/products/p3-54sr.html
http://item.taobao.com/item.htm?id=26811148737
http://item.taobao.com/item.htm?id=36942876198
http://item.taobao.com/item.htm?id=37805298975
http://item.taobao.com/item.htm?id=38119128550
http://item.taobao.com/item.htm?id=38748213510
http://item.taobao.com/item.htm?id=38727683814
http://item.taobao.com/item.htm?id=38746270075
http://item.taobao.com/item.htm?id=39247075298
http://item.taobao.com/item.htm?id=45089849731
http://item.taobao.com/item.htm?id=45109672269
http://item.taobao.com/item.htm?id=45170506959

 

[sfoclt]

Thank you.  That is very helpful.  And you really are a living encyclopedia of product accessories. 

 

[yates7592]

Has anybody heard or own this portable amp yet?

 

[b0ssMax]

Has anybody heard or own this portable amp yet?

I have and a couple of others in this thread.

 

[Uncle E1]

can anyone explain why is the 3.5 unbalance output much louder than the 2.5 balanced output?
 

 

[raypin]

mmm......loving  my 404 (dumped my 395). Pretty powerful portable amp. Out of the unbalanced 3.5 mm., I never get past 8 o'clock for headphone use. It gets too loud too fast. Fine-tuning the volume pot is like a game of millimeters.

 

[HeavenMore]

I put my mk404 on the sale.

Who are interested in this amp please pm me.

Thanks.

http://www.head-fi.org/t/777575/mass-kobo-404-full-balance-portable-headphone-amp

 

[yates7592]

If anyone else wants to sell their 404 drop me a message.

 

[yates7592]

Anybody heard HD800 through Mass Kobo 404?

 

[holmieSG]

Anyone knows how much this usually go for used?

 

[holmieSG]

Hi selling my new mass kobo 404 pls pm me if int

 

[zachchen1996]

Anyone try this amp with the se5 ult?

 

[zachchen1996]

If anyone wants to sell their MK404, please PM me!

 

[m-i-c-k-e-y]

Why the selling?

Anymore feedbacks on this Amp?

 

[zachchen1996]

Why the selling?

Anymore feedbacks on this Amp?

​Oh I'm not selling, I want to BUY one haha.
 
I've tried looking online for more impressions on this amp, but they're all in chinese or japanese xP.