Simaudio Neo 430HA Headphone Amplifier - Manual (Page 10)

430HA Headphone Amplifier
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10
There are three (3) different headphone outputs
located on the front panel of the Nēo 430HA. The
first is the “Phones” jack, located directly below the
“MP in” jack. This is used for connecting a pair of
single-ended stereo headphones to the 430HA. The
input connector uses a standard single-ended ¼”
TRS jack.
The two other headphone outputs are hidden behind
the right side of the display window. To expose
them, simply slide the display window to the left.
This is done by placing one of your fingers into the
contoured groove, located on the far right side of
the window, and gently sliding it to the left until it
stops moving; when the groove is vertically aligned
to the blue indicator LED. You will now see three (3)
female XLR connectors; The left and middle sockets
are 3-pin XLR connectors, intended for use with a
pair of dual-mono fully balanced headphones
equipped with two 3-pin XLR male connectors. The
right socket is a 4-pin XLR connector, intended for
use with a pair of fully balanced headphones
equipped with one 4-pin male connector. When
none of these three XLR connectors are in use, you
should close the display window; this is done by
placing one of your fingers onto the left side
contoured groove and gently sliding it to the right
until it stops moving. Note: We recommend
connecting only one pair of headphones at a
time to the Nēo 430HA.
Optional Digital Inputs
The Digital Input option includes four (4) separate
inputs: “D1” uses an optical Toslink connector, “D2”
and “D3” use S/PDIF on an female RCA connector
and “D4” uses a type-B USB connector. The “D1” is
intended for use with a source equipped with a
TosLink digital output such as a satellite dish
receiver or DVD player; The “D2” and “D3” inputs
are intended for use with a source equipped with a
S/PDIF digital output such as a network player,
music server or CD transport. The “D4” input is for
use with a computer equipped with a USB connector
and music player software; you cannot connect a
USB flash drive or external hard drive to the “D4”
input.
When you select one of the digital inputs the display
window will indicate which of the four digital inputs
is selected. At the same time, the right side of the
display window will initially show four dashes as
follows “----” which indicates that the Nēo 430HA is
in the process of locking onto the external digital
input signal – this may take several seconds. Once
the 430HA successfully locks onto the digital signal,
the four dashes will be replaced by the sampling
rate of this digital signal. When the DAC cannot lock
onto signal, “----” remains in the display window.
The optional DAC is capable of processing the
following data/sampling frequency rates. The
corresponding values as they appear in the display
window are listed directly below each rate:
PCM: 32.0kHz, 44.1kHz, 48.0kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8 and 384kHz
Displays as: 32.0 44.1 48.0 88.2 96.0 176.0 192.0 352.8 384.0
DSD: DSD64 (2.82MHz), DSD128 (5.64MHz) and DSD256 (11.28MHz)
Displays as: DSd DSd.2 DSd.4
Notes: (i) DSD format signals can ONLY be played through the USB (“D4”) input.
(ii) PCM format signals with sample-rates of 352.8kHz and 384kHz can
ONLY be played through the USB (“D4”) input.