darTZeel Audio NHB-18NS - Manual (Page 7)

darTZeel NHB-18NS
User Manual, version 0.93 Page 7 of 10
3.5. Special features
Home Theater Bypass:
If you hold the mute toggle switch (Chapter 3.1. pos. 5) for about 7 seconds, the Mute LED will go green, indi-
cating that the corresponding input is now in HT bypass mode. The pleasure control is now defeated, and the
global In-to-Out gain is set at 0 dB. The setting will be kept in memory until the Mute toggle will be hold again
for 7 seconds.
Each input can be HT bypassed separately if needed.
Front panel Illumination
You can switch off - or back on - all light illumination (LEDs and knobs surrounding) by either doing the followings:
Holding down the Mono/Stereo toggle switch (Chapter 3.1. pos. 6) for 3 seconds.
OR
Pressing, on the remote control, both plus and minus loudness keys for about 2 seconds.
Power supply mode operation
From software version 2.10, it is now possible to choose between two operating modes:
1. BTM (Battery Through Mode, or so called AC Mode): batteries are always kept under charge/maintain
mode, whatever the NHB-18NS is switched on or off. This new factory default mode allows for ex-
tended battery life time and ensures batteries will be fully charged while performing critical listening
session. In this mode, power is supplied by the external power supply through internal batteries, exactly
like a computer in-line UPS (Uninterruptible Power Supply): AC grunge, while not fully removed, will
be well filtered out thanks to batteries’ damping action. This mode will also permit the NHB-18NS to
operate even if batteries do not hold a charge anymore, allowing for smooth operation until eventual
batteries’ replacement.
2. Automatic Mode: the NHB-18NS always works on battery mode when powered on, as long as they
have enough juice. Batteries are charged/maintained when the machine is switched off. This is the mode
you will choose when performing critical listening session, when you will want to be sure there are no
any noise and/or RFI coming from AC mains.
Ultimate sound performance will be given in Automatic Mode.
In case of intensive use, say more than 4-5 hours every day, we strongly recommend switching to BTM for about
2-3 days every month: this will allow for full reconditioning charge and will ensure longest possible life span of
batteries.
!!! NEVER, EVER PHYSICALLY REMOVE OR UNPLUG BATTERIES !!!
THE NHB-18NS WILL NOT START UP DOING THIS
Going from BTM to Automatic Mode:
• Press down both "Mono/Stereo" and "Mute" switches for 2 seconds.
• Central LED colour status will change from GREEN to ORANGE.
Going from Automatic Mode to BTM:
• Press down both "Mono/Stereo" and "Mute" switches for 2 seconds.
• Central LED colour status will change from ORANGE to GREEN.
LED status has been updated too, in order to provide you a better monitoring view of the chosen operation mode.
Please read very next chapter, which explains this in detail.