Entering a new dimension
The name says it all – the new HELIX DSP ULTRA is anything but another signal processor with just more channels. Rather, it is the next technological milestone that impressively demonstrates Audiotec Fischers expertise in the field of DSP technology.
Computing power can only be replaced by even more computing power – and that is why the DSP ULTRA is equipped with two of the most powerful 64 Bit audio signal processors from Analog Devices. Incredible 2.4 billion MAC operations per second make the twelve separately processed channels and the multitude of new sound features in combination with the high sampling rate of 96 kHz (resulting in an audio bandwidth of over 40 kHz) possible.
ACO – Advanced 32 Bit platform
Rapid processing power not only in the signal path – the particularly fast 32 Bit ACO platform takes over all control tasks and ensures the decisive speed increase, especially for data communication with our DSP PC-Tool software, but also for the lightning-fast switching between up to ten possible sound setups. But ACO offers much more – fantastic sound effects such as Augmented Bass Processing or StageXpander are implemented as well as a channel-separated Input EQ including Input Signal Analyzer (ISA) for easy analysis and compensation of input signals of OE radios, which already include a sound setup ex works.
Smart highlevel input ADEP.3
Modern, factory-installed car radios incorporate sophisticated possibilities of diagnosing the connected speakers. In particular the latest generation of car radios are equipped with additional monitoring functions so that failure messages and loss of specific features (e.g. fader function) quite often appear if a signal processor will be hooked up – but not with the DSP ULTRA. The new ADEP.3 circuit (Advanced Diagnostics Error Protection, 3rd Generation) avoids all these problems without loading the speaker outputs of the OE radio during high volumes unnecessarily.
The switched power supply of the HELIX DSP ULTRA assures a constant internal supply voltage even if the battery’s voltage drops to 6 Volts during engine crank.
Power Save Mode
The Power Save Mode is incorporated in the basic setup. It allows to significantly reduce the power consumption of the amplifiers that are connected to the HELIX DSP ULTRA once there’s no input signal present for more than 60 seconds. Please note that in many up-to-date cars with "CAN" or any other internal bus structures it may happen that the radio remains “invisibly” turned on for up to 45 min. even after locking and leaving the car! Once the “Power Save Mode“ is active the remote output and therefore the connected amplifiers will be turned off. The HELIX DSP ULTRA will reactivate the remote output within a second if a music signal is applied. It is possible to either modify the turn-off time of 60 sec. or completely deactivate the “Power Save Mode” via the DSP PC-Tool software.
Inputs 8 x RCA / Cinch
8 x Highlevel speaker input
1 x Optical SPDIF (12 - 96 kHz)
1 x Coax SPDIF (12 - 192 kHz)
1 x Remote In
Input sensitivity RCA / Cinch 1 - 8 Volts
Highlevel 4 - 32 Volts
Outputs 12 x RCA / Cinch
1 x Remote Out
Output voltage 8 Volts
Frequency response 10 Hz - 44,000 Hz
DSP resolution 64 Bit
DSP power 2 x 295 MHz (2.4 billion MAC operations/second)
Sampling rate 96 kHz
DSP type 2 x Audio signal processor
Signal converters A/D, D/A: Asahi Kasei 32 Bit
Signal-to-noise ratio digital input 117 dB (A-weighted)
Total harmonic distortion (THD+N) digital input 0.0004 %
IM distortion (IMD) digital input 0.002 %
Operating voltage 9.6 - 18 Volts (max. 5 sec. down to 6 Volts)
Current draw 650 mA
Max. remote output 500 mA
Additional features HEC slot, Ground lift switch, Control Input, 32 Bit CoProcessor, ADEP.3 circuit, Auto Remote switch