General instruction for connecting the digital crossover The HELIX DXP-6 may only be installed in motor vehicles which have a 12-volt minus pole connected to the chassis ground. Any other system could cause damage to the amplifier and the electrical system of the vehicle. The plus cable from the battery for the complete system should be provided with a main fuse at a distance of max. 30 cm from the battery. The value of the fuse is calculated from the maximum total current input of the car audio system. Install the cabling in a manner which precludes any danger of the leads being exposed to shear, crushing or rupture forces. If there are sharp edges in the vicinity (e.g. holes in the bodywork) all cables must be cushioned and protected to prevent fraying. Never lay the power supply cables adjacent to leads and lines connecting other vehicle equipment (fan motors, fire detection modules, gas lines etc.). In order to ensure safe installation, use only high-quality connections and materials. Ask your dealer for high quality accessories.
EQUIPMENT AND CONTROL UNIT OF THE HELIX DXP-6
Digital Signal-Input Analog Signal-Input Signal-Output, Channel 1-6 Power Connector: Ground
Power Connector: +12 Volt Power Connector: Remote Input Power Connector: Remote Output Control Unit

FUNCTIONAL BLOCK-DIAGRAM

Connection
1.1 Digital Signal-Input The HELIX DXP-6 has a Digital Signal-Input which has to be connected to the pre-amplifier-output of the head-unit. 2.1 Analog Signal-Input The HELIX DXP-6 offers 4 RCA-connectors which generate 2 Stereo-Signals. Thus, the HELIX DXP-6 can be connected to the pre-amlifier-output of the head-unit by using Cinch-plugs. 3.1 Signal-Output, Channel 1-6 The Signal-Outputs have RCA-connectors which are connected to the input of the downstream amplifier. 4.1 Power Connector: Ground Cable The Ground Cable should be connected to a to a dismantled, unlaquered ground point of the car chassis. 5.1Power Connector: + 12 Volt The +12V-Cable has to be connected to a positive pole. 6.1Power Connector: Remote-Input The Remote-Input has to be connected to the remote output of the head-unit. It is only active if the head-unit in ON. Thus, the HELIX DXP-6 is switched on and off automatically togehter with the head-unit. 7.1Power Connector: Remote-Output The Remote-Output has to be connected to the Remote-Input of the downstream amplifiers. If this is neglected, static noise can occur when the amplifiers are switched on or off.
8.1.1 Normal Mode The Normal Mode starts after the HELIX DXP-6 has been switched on via the Remote-Input-Signal. The Input-Source (analog/ digital) can be chosen in the Normal Mode. Moreover, the Bass Level for the Output-Channels 1-6 can be adjusted.

8.1.1 Selection of the Input-Source Using the SOURCE-key, either the analog or the digital input mode can be chosen. 8.1.2 Adjustment of the Bass Level Using the keys UP and DOWN the Bass Level can be adjusted in 2-dB-steps from 0 to 18 dB. The respective Output-Channel can be chosen via the keys CH+ und CH. 8.2.1Setup Mode The following adjustments can carried out in the Setup-Mode: - INPUT LEVEL SETUP (only analog) - CHANNEL SETUP - BASS EQ SETUP 8.2.1 Input Level Setup Using the key INPUT LEVEL the respective menu can be chosen. Via the keys UP and DOWN the Input Level can be adjusted.

Operation

8.1Control Unit Via the Control Unit the Digital Crossover HELIX DXP-6 can be operated in three different control modes: - NORMAL MODE - SETUP MODE - TEST TONE MODE
The respective channel has to be chosen with the keys MENU+ und MENU.
If the Input Signal is in the clipping area, the display will show a filled-out HELIX diamond. If there is no clipping, the HELIX diamond is not filled out. 8.2.2 Channel-Setup By using the the CHANNEL key, the respective menu can be selected. The output channels which have to be adjusted can be selected via the keys CH+ and CH. Please chose the desired function for each channel with the keys MENU+ and MENU. The respective settings can be made with the keys UP and DOWN. The menu DELAY TIME provides the possibility to change the displayed unit. Use the key BASS EQ/ SLOPE/ DELAY to select between ms / cm / inch. Use the key BASS EQ/ SLOPE/ DELAY for the filter settings. The edge steepness can be adjusted between 12 or 24dB. - HPF.. 40 Hz - 10 kHz - LPF.. 40 Hz - 10 kHz - Subsonic Filter..15 Hz - 30 Hz - Bass EQ Level. 0 dB - 18 dB - Channel Trim Level.-6 dB - + 6dB - Delay Time.0 - 14 ms / 480 cm / 189 inch - Channel Routing. FL > FR > RL > RR > FL and FR mix > RL and RR mix - Polarity. Normal > Invert
8.3 Test Tone Mode The HELIX DXP-6 has a Test-Tone-Mode (white noise) in order to test the loudspeaker connections and the balance settings of each channel. Use the key TEST TONE to select the mode. The channel which shall be tested can be selected via the keys CH+ and CH. Use the keys UP and DOWN to adjust the testtone-level. Use the keys ESC or TEST TONE to quit the Test-ToneMode.
9 Default Settings in order the restore the default settings of HELIX DXP-6, press the ESC key for 5 seconds. Confirm the reset process with the key MENU+ (=Y=yes). Press the key MENU (=N=no) or ESC to cancel the reset process.
8.2.3 Bass-EQ-Setup / Bass-Equalizer-Setup By using the key BASS EQ, the respective menu can be chosen. Select the desired function with the keys MENU+ and MENU. The settings can be made via the keys UP and DOWN. - Center Frequency. 45 Hz - 60 Hz - Bandwith. Narrow > Wide

TECHNICAL DATA HELIX DXP-6
Lowpass. 40 Hz - 10 kHz Highpass. 40 Hz - 10 kHz Subsonic Filter. 15 Hz - 30 Hz Bass Boost Level Increase. 0 dB - 18 dB Bass Boost Center Frequency. 45 Hz - 60 Hz Phase. 0 / 180 Edge Steepness. 12 dB / 24 dB Time Delay. 0 - 14 ms / 480 cm / 189 inch Total Harmonic Distortion Analog-Input (THD+N). < 0,01% Total Harmonic Distortion Digital-Input (THD+N). < 0,005% Signal-To-Noise-Ratio Analog-Input. > 95 dB Signal-To-Noise-Ratio Digital-Input. > 100 dB Input-Impedance. 10 kOhm Output-Impedance. 10 kOhm Input Sensivity. 0.2 V - 8 V Output-Level. max. 4 V SPDIF-Input-Level. 200 mV Fuse.3 Ampere Dimensions (H x W x D) in mm. 33 x 235 x 140 Weight net. 0.86 kg

WARRANTY REGULATIONS

Due to the high quality standard Helix products achieved an excellent international reputation. Therefore we grant a warranty period of 2 years. The products are checked and tested carefully during the entire production process. In the case of service note the following: 1) The 2 years warranty period commences with the purchase of the product and is applicable only to the original owner. 2) During the warranty period we will rectify any defects due to faulty material or workmanship by replacing or repairing the defective part at our decision. Further claims, and in particular those for price reduction, cancellation of sale, compensation for damages or subse quential damages, are excluded. The warranty period is not altered by the fact that we have carried out warranty work. 3) Unauthorized tampering with the product will invalidate this warranty. 4) Consult your authorized dealer first, if warranty service is needed. Should it be necessary to return the product to the factory, please ensure that a) the product is packed in original factory packing in good condition b) the warranty card has been filled out and attached to the product c) the product is shipped prepaid, i.e. at your expense and risk d) the receipt/invoice as proof of purchase is enclosed 5) Excluded from the warranty are: a) Shipping damages, either readily apparent or concealed (claims for such damages must be immediately notified to the forwarding agent). b) Scratches in metal parts, front panels or covers etc. This must be notified to your dealer within 5 days of purchase. c) Defects d) Products caused which by incorrect been installation repaired or connecor tion, by operation errors, by overloading or by external force. have incorrectly modified or where the product has been opened by other persons than us. e) Consoquential damages to other equipments. f) Reimbursement when repairing damages by third parties without our previous permission g) Products with removed serial numbers

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