Discount sales in Head-Direct
Mar 17, 2007 at 4:56 PM Post #47 of 49
MiniBox-D portable headamp is the thinnest portable headamp avaible so far.

Price: $69 shipped
Paypal to: head.direct@gmail.com
Shipping: USPS Priority Mail to US, Canada,UK and AU customers
One year repair waranty
Discount Sale: MiniBox-D Portable Headamp and DOWIN CABLE DW-08 Combo

Product Details

* Portable headamp
* Ultra light and thin
* Very Powerful output
* AC Charger and USB charger Cable
* Nice leather carrying case


Technical Details

* Battery: 500mA Ni-H "chewing-gum" battery*4
* Output: 70 mW at 16ohm; 130 mw at 32ohm
* THD+N: 0.009%;
* Output impedance:16-300Ω;
* Battery time: 70hrs
* Dimension: 3.64*2.2*0.34inch(91mm*55mm*8.5mm)

Photo Gallery
MiniBox1.jpg

MiniBox2.jpg

MiniBox3.jpg

MiniBox4.jpg
 
HiFiMAN Innovating the art of listening. Stay updated on HiFiMAN at their sponsor profile on Head-Fi.
 
http://hifiman.com
Mar 17, 2007 at 6:31 PM Post #48 of 49
About Radio Partner

Radio Partner is a professional hearing aid and pro-audio company located in NYC midtown. Starting their bussiness for more than 20 years, they helped a lot of famous artists doing their customer earpiece and got very high reputation.

Collaboration with YUIN


After listening to PKs, Radio Partner decide to collaborate with YUIN and make Custom Earst for them. The Radio Partner Custom Earset consists of Earbud style speakers molded into a pair of custom earpieces made from impressions of your own ears. In order to manufacture your Custom Earset they first send you a packet of material with directions on how to do your own ear impressions, and a return mailer with earbuds so they can then custom make your Radio Partner Custom Earset and send them to you.

Product impressions

After testing Custom PK1 and PK2 IEM for two weeks, I have to say they are terrific headphones.

Those earpieces improve PK2 a lot. The shortcome of deep sub bass extension is improved and there is much more detail at mid range. On the other hand, bass is not too much and did not blur mid and treble at all. Overall with the earpiece PK2s was inproved a lot and make PK2 jump to Hi-end IEM level. It is very nice to have a Hi-end Customized IEM at $69+$99=$168, isn't it?

With the custom earpiece, what happenned to PK1 is similiar to PK2. However, as PK1 have more bass than PK2, after adding the earpiece PK1's bass part become a little too much. Fortunately this problem can be fixed by adding resistors and controlling the length of the in-ear-tube. After I connect the $25 DOWIN CABLE DW-04 75ohm ER4P-4S adaptor to those custom-IEM-PK1s, booming bass vanished. Sound become balance, neat, smooth and detail.

Pricing and Contact info

Current Price for a pair of Custom Earpieces: $99
Payment: Call 1-800-321-3364 and pay via Credit card on the phone

RADIO PARTNER CUSTOM EARSET, INC.
243 W. 30th Street
New York, NY 10001
1-800-321-3364 / 212-967-7628
Fax: 212-967-9609

Photo Gallery

9.jpg
 
HiFiMAN Innovating the art of listening. Stay updated on HiFiMAN at their sponsor profile on Head-Fi.
 
http://hifiman.com
Apr 27, 2007 at 12:23 AM Post #49 of 49
Could I use MINIBOX to amplify dynamic microphone signal?
Plugging it directly in an iRiver (I'm waiting for a used one to arrive now) would be useless, there would be too much white noise.
 

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