digi01

the amp is designed by my friend 3 stones,assembled by digi01.purpose for hifi pads.

pm me for details.

PACKAGE CONTENTS

❍ Aluminium suitcase *1

❍ Mini Box headphone amplifier *1

❍ DC Power Adapter *1

❍ Quick Start Guide leaflet

❍ 3.5mm to 3.5mm Stereo Interconnector *1

❍ MINI BOX HeadAmp Server Manual

❍ Power adapter Server Manual

Technical Specifications

Size ❑ 3.2" (W) x 0.9" (H) x 2.7" (D) or 81(mm) * 24(mm) * 69(mm)

Weight ❑ 300g

Battery type ❑ unremovable Ni-H batteries 10*1.2V connect in series

Battery Life (playback time) ❑ Up to 15 hours of continuous playback from fully charged batteries. Using passive speakers or high-power headphones may reduce the playback time

Loading range ❑ 16ohm ~ 300ohm

Output Power ❑ 60mw / 100ohm

Signal to Noise Ratio ❑ Up to 98 dB (Headphones)

Power on display ❑ 3mm, Blue LED

Channel Separation ❑ Up to 66 dB (Headphones)

Frequency Response ❑ 100ohm loading: 1~900KHz 0~1.5dB

Headphone Out ❑ 1/8" or 3.5mm stereo minijack

Source Input ❑1/8" or 3.5mm stereo minijack

hi rioven i am sorry for delay.

all details are here:http://headwize.com/ubb/showpage.php?fnum=3&tid=5708

ygpm

all resistors 被焊接在IC 的下面,for reduce feedback distance and signal route.

photo.

thank you for your nice words.

mine is a modified footprint for quality parts.all resistors have room for 1/2W DALE or the other brand.the output emitter resistors is 1W footprint as premium purpose when bias current over 100ma.

Z

yes,it is myself.

Zang

photo.

I have a diy earmax for sell.ask for $190SGD,shipping cost is 60SGD.

some photos below,it is very good for DT880.

bump,still available

ppa2 is cheaper than ppa1,because the three solid buffers drop 30% cost:-)and I think solid buffer is more fun for diyer.

ppa1's 12 ha3-5002 chip is tooooo costly.

I am going to build it by myself.

photo attached.

nice!have you got the unit runing?

P.S.

I have send you a remotable cdp control,how it works?

Z

OK,pm reply.

Z'

pm reply

OK,ygpm.

pm reply.

P.S.

I accept paypal and cash order.thanks.

I live in beijing china.

I can customize amp basis on users requirement.the standard design is meta42 likes circuit.

another photo of my headamp below:

hello everyone,I have 5 headamp for sell.60sgd per one,shipping is 10.

FYI,below photos is a couple of sold amp looks like.

inner photo.

photo attached.

inner photo(take it at assembly progress).

OK.

more photo below:

P.S.

do you use DT880 headphone now?

http://www.sgheadphones.net/index.php?showtopic=3697

here is a short comment about DT880:

http://www.diyaudio.com/forums/showthread....0662#post680662

here is a assembly and comment thread at diyaudio.you can find some reviews.thanks.

http://www.diyaudio.com/forums/showthread....&threadid=29784

Hi!

you are welcomed.the amp can ship to Australia.the price is same.

Zen headamp is a pure calss a headamp designed by Marcello Pellerano,the project concept is basis on pass labs ZEN power amp.the archetype article below:

http://headwize.com/projects/showfile.php?...llerano_prj.htm

mine is a modifiy version with regulator power supply.the amp is very good for grado,alessandro and sennheiser headphones.

Specs:

Frequency Response:20～20000Hz ( +_1dB)

S/N:102dB

TDH+N:0.2%

Loading range 16ohm ~ 300ohm

Output Power 60mw / 100ohm

Headphone Out: 6.5mm stereo jack

Source Input: RCA jack

Power:220-240VAC