We offer a $15 flat rate Australia-wide shipping service, no matter how many items, however large or heavy items may incur a higher freight charge. If your item/s is subject to additional freight charges due to being large or heavy, this will be calculated at checkout. If any damage occurs during shipping, it is the responsibility of the customer to notify us within 24 hours of the order arriving. This is a requirement of our freight insurance and we are unable to lodge any claims after 24 hours from delivery.
The new entry into the HELIX world! The amplifiers of the D series are solely modest with respect to pricing. Everything else is thoroughly pure HELIX quality without any compromises. Loads of power, excellent measurement data and a whole bunch of features ensure a pristine and crispy sound experience!
Absolutely nothing has been missed for powerful sound reproduction - the active crossover with highpass filter, lowpass filter, bandpass and bass boost are equally as self-evident as the intelligent high level input that incorporates Audiotec Fischer´s proprietary ADEP circuit. It is even possible to add an optional volume remote control for the amp channels C and D which is very useful if those outputs are firing a subwoofer.
The elegant design not only states right from the beginning the amp's heritage but also allows an easy integration into your car thanks to its compact dimensions. That is sound-tuning at its best!
Smart high level input
The latest generation of OE car radios incorporates sophisticated possibilities of diagnosing the connected speakers. If a common amplifier will be hooked up failure messages and loss of specific features (e.g. fader function) quite often appears - but not with the D FOUR. The new ADEP circuit (Advanced Diagnostics Error Protection) avoids all these problems without loading the speaker outputs of the OE radio during high volumes unnecessarily.
4-channel high- and lowlevel input
Smart highlevel input with ADEP circuit (Advanced Diagnostics Error Protection) and Auto Turn-On function
Fully active crossover with highpass, lowpass, bandpass and bass boost
Extremely stable MOSFET power supply
“Input mode” switch for flexible input signal routing
Highlevel input sensitivity up to 14 Volts max.
Cable remote control for volume adjustment of the channels C & D optionally available
Massive aluminum heatsink for best cooling conditions
Dimensions (H x W x D): 53 x 320 x 230 mm
Output power RMS / max.
- @ 4 Ohms
4 x 65 / 130 Watts
- @ 2 Ohms
4 x 90 / 180 Watts
- @ 1 Ohm
- bridged @ 4 Ohms
2 x 180 / 360 Watts
- bridged @ 2 Ohms
Max. output power per channel*
Up to 160 Watts RMS @ 2 Ohms
4 x RCA / Cinch 4 x Highlevel speaker input 1 x Remote In 1 x Remote control input
RCA / Cinch 0.5 - 6 Volts Highlevel 1 - 14 Volts
Input impedance RCA / Cinch
Input impedance highlevel
4 x Speaker output
Output voltage RCA / Cinch
Signal converter for digital input
10 Hz - 50.000 Hz
0 - 12 dB / 45 Hz
15 Hz - 4,000 Hz adjustable
40 Hz - 4,000 Hz adjustable
15 Hz - 4,000 Hz adjustable
Slope high- / lowpass
Slope subsonic / lowpass
Signal-to-noise ratio digital input
Signal-to-noise ratio analog input
108 dB (A-weighted)
9.6 - 16 Volts
2 x 25 A Maxi-fuse (APX)
Active, adjustable crossover, bass boost, input mode switch, highlevel input with automatic turn on function and Advanced Diagnostics Error Protection (ADEP), optional cable remote control
We offer a $15 flat rate Australia-wide shipping service, no matter how many items, however large or heavy items may incur a higher freight charge. If your item is subject to additional freight charges, this will be communicated to you when your order is processed. You are able to cancel your order and receive a full refund if you do not accept the additional freight charges.
If any damage occurs during shipping, it is the responsibility of the customer to notify us within 24 hours of the order arriving. This is a requirement of our freight insurance and we are unable to lodge any claims after 24 hours from delivery.
For express shipping, we offer a $30 flat rate Australia-wide shipping, however, larger/heavier items and remote areas may incur additional/higher fee which will be communicated with you at the time of processing your order.
Any order can be picked up in-store, located at 9 Strathaird road Bundall 4217, during our regular business hours for no freight or handling fees. We request 2-4 business to process the order but often will have it ready in less time. For security reasons, when picking up in-store you must present photo ID if you have paid online via credit card. The card holder must be the person picking up the order.
P.O. Boxes and Parcel Lockers
Unfortunately, GCCS are unable to ship to PO Boxes or Parcel Lockers for insurance reasons at this time, an alternate shipping option may be offered. Additional fees may be applicable.
GCCS do not ship internationally at this time.
Warranties, Returns and Refunds
All products sold by GCCS come with a minimum 12 month warranty as stipulated by Australian consumer law. If your product is defective please contact us to organise the return of the item. All products are sent back to the manufacturer for assessment and either repair or replacement. Manufacturers can take up to four weeks for goods to be repaired. All goods are subject to the manufacturers terms and conditions for repair or replacement. Please contact us for further information.
Any unopened item can be returned within 30 days of delivery for a refund less 20% re-stocking fee and freight costs. If the item has been opened, unpacked or used please advise us to discuss options. GCCS will pay freight charges on any orders returned if the order is the result of our error.
Refunds are paid back to you by the same method of payment for that order. Refunds can take 48-72 hours after the item has been received by our store.
To organise the return of an item, please contact us before sending the item to ensure prompt service.