Simaudio Neo 430HA Headphone Amplifier - Manual (Page 8)

430HA Headphone Amplifier
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8
Front Panel Controls
Figure 1: Nēo 430HA Front panel
The front panel will look similar to Figure 1 (above).
The large display window indicates the selected
input and volume level setting. If your Nēo 430HA
includes the Digital-to-Analog converter (DAC)
option, the digital input signal’s sampling rate will
briefly appear in the display window. Refer to the
section entitled “Optional Digital Inputs” on page
10 for further details.
The “Standby” button disengages all internal
circuitry from the power supply, except for the
controller circuit and the IR receiver. The blue
indicator LED turns off when the Nēo 430HA is in
“Standby” mode. When switching back from
“Standby” to the “on” mode, the blue LED directly
above the display window will illuminate and the
current ‘input’ will be memorized from the previous
listening session. When you press and hold the
“Standby” button for approximately 3 seconds, all
components connected to the 430HA via SimLink™
will also switch between “Standby” mode and “on”
mode. Please refer to the section entitled SimLink™
for further details.The 430HA will automatically go
into standby mode after approximately 20 minutes
of inactivity. To disable this feature, please refer to
the “Mute” button details on the following page.
The “Gain” button allows you to switch between a
low gain (14db) setting and a high gain (20dB)
setting. The default setting is low gain. When you
engage this button, the corresponding setting wil
appear briefly in the display window as either “Lo”
or “Hi”. The high gain setting should be used in
situations when (i) your source component
connected to the 430HA has a low output signal (ii)
your headphones have either a low sensitivity or low
efficiency rating. When you press and hold the
“Gain” button for approximately 3 seconds, the
current version of installed firmware will appear
briefly in the display window.
When your Nēo 430HA is equipped with the
optional DAC, pressing the "Display" button allows
you to alternate the contents of the display
window’s right side between the volume level and
the sampling rate of the digital input signal for the
four (4) digital inputs (D1, D2, D3 and D4). Note:
When the volume level is displayed and the digital
input signal’s sampling rate changes, the new
sampling rate will appear briefly. The volume level
will always be displayed on the right side for the
three (3) analog inputs (A1, A2, B1). The “Display”
button also allows you to turn the digital display on
and off. If you want to turn the display off, press
and hold the “Display” button for 3 seconds. When
the display is turned off, it will still illuminate for a
short period of time whenever you press any of the
buttons located on the front panel or the remote
control; the display will automatically turn off again
once you are done. To turn the display back on,
simply press and hold the “Display” button for 3
seconds.
The “Xfeed” button engages the Nēo 430HA’s
internal Crossfeed circuit. When activated the red
LED, located to the right of this button, will
illuminate. The Crossfeed circuit is designed to
reduce listener fatigue that may result from stereo
recordings with extreme channel separation. This
feat is accomplished by (i) blending a small amount
of the music from the left channel into the right
channel and (ii) blending a small amount of the
music from the right channel into the left channel.