Additional Functions - HELIX ULTIMATE P SIX DSP User Manual

Hardware configuration
Examples for adjusting the input sensitivity:
Source
4- to 6-channel OEM radio
Up to 25 W RMS power per channel
at 4 Ω or up to 50 W RMS power
at 2 Ω
OEM-Radio with additional 4-
to 8-channel amplifier
> 25 W and up to 200 W RMS power
per channel at 4 Ω or up to 400 Watt
2 Ω or 100 W at 8 Ω
4- to 6-channel aftermarket
radio with pre-amplifier outputs
Up to 4 V RMS RCA / Cinch output
voltage
Fig. 1 – Low Voltage Range configuration:
Value range: Highlevel
Lowlevel / Cinch 1 - 4 Volts
For further applications please contact your HELIX specialist dealer.

Additional functions

1. Clipping LED
Normally the Clipping LED is off and only
lights up if one of the Line or Highlevel Inputs
is overdriven.
On (red): One of the analog signal inputs is
overdriven. Reduce the input sen-
sitivity using the three gain controls
until the LED goes out. How to
reduce the input sensitivity is de-
scribed on page 21 point 8.
Note: The LED has no function when using
one of the digital inputs.
24
Input Jumper positions
Highlevel Low Voltage Range –
A - F default jumper posi-
tions (see fig. 1)
Highlevel High Voltage Range
A - F (see fig. 2)
Lowlevel / Low Voltage Range –
Cinch default jumper
A - F positions
(see fig. 1)
4 - 16 Volts
2. Status LED
Position gain control
16 V (by default)
Typically max. CCW position
Typically max. CCW position
for radios with 4 V output
voltage; max. CW position for
radios with 1 V output voltage
Fig. 2 – High Voltage Range configuration:
Value range: Highlevel
Lowlevel / Cinch 2 - 8 Volts
The Status LED indicates the operating mode
of the amplifier and of its memory.
Green: Amplifier is ready for operation.
Orange: Power Save Mode is active.
Red: Protection Mode is active. This may
have different root causes. The HELIX
P SIX DSP ULTIMATE is equipped with pro-
tection circuits against over- and undervolt-
age as well as overheating. Please check for
connecting failures such as short-circuits or
other wrong connections. If the amplifier is
overheated the internal temperature protec-
8 - 32 Volts