This is the PARTS and CIRCUIT
BOARD for our current
production
Zen Head
model ZH-1
The Zen Head is quickly becoming one of
the best sounding portable headphone amps in the world - as
evident by the threads on head-fi.org ! Now you can build
one yourself without our fancy machined chassis and save some
serious cash! Kit comes with everything shown above. You
supply the 9 volt battery.
CIRCUIT BOARD
Based on the Burr Brown OPA2132 op amps, this
kit will drive audiophile headphones between 10 ~ 600 ohms with around
50 hours of battery life. It uses 3.5mm stereo input and output
jacks. It features one of the best sounding cross feed circuits out
there (this baby images!) but if you don't like cross feed you can
simply turn it off. Additionally there some other switches that allow
you to tweak the unit while you listen:
1) Crossfeed - on / off
2) Inter-stage gain level - hi / low
Adjusts inner dynamics - the
effect is subtle
3) Input impedance - 32KOhms / 10KOhms
The 10K setting gives the unit
lots of gain and lots of hit, ideal for IPODs etc., the 32K setting is
less gain better suited for standard 2 volt outputs from your favorite
CD player or DAC set up.
4) Output impedance - HiZ / LoZ
This can be used to best
compliment the sound of your headphones. LoZ will drive almost
all headphones up to 600ohms, as will the HiZ setting. Choose
based on the best sound and performance with your phones. NOTE:
When using this as a line level preamp the unit should be sest to HiZ
only.
For additional information on availability, click on the Mouser Part #.
Note: Some parts will become obsolete as is common with electronic parts and you may have
to find a suitable substitute. Mouser makes this easy by showing you similar parts with the same specs.
Case for ZKIT3 with blank face plate,
screws and battery holder
NOTE: This is the same case as our production
unit, but done in white and with a different front panel so that there
can never be any confusion between a Zen Head built by Decware and one
built from a kit.
NOTE: if you would like this unit completely
finished in our machined chassis with a lifetime warranty you can purchase our non-kit version here.