FOCAL 4-Channel Ultra-Compact Amplifier For In-Dash, 4 X 55W Rms (4Ω), 4 X 80W Rms (2Ω) -Impulse 4.320

Give your head unit a breath of fresh air

Head unit amplifiers (whether OEM or aftermarket) soon reveal their limits in terms of power and dynamics. At high volume, they soon saturate and ruin the listening pleasure. To compensate for this and to enable you to get the best out of your speaker drivers, Impulse 4.320 is the ideal solution.

TECHNOLOGY PLATFORM FROM FD AMPLIFIERS

The technology used for Impulse 4.320 was inspired by the Performance range’s FD amplifiers.

With an efficiency of more than 90%, Class D amplification has numerous advantages: less heat, low power consumption, low distortion at high volumes, compact…With the Impulse 4.320 amplifier, an unbeatable size/power ratio has been achieved. It delivers 4 x 55 or 2 x 160 Watts RMS at 4 Ohms.

Thanks to the adequate power and the fast attack for realistic and more aerated sound, it will completely transform the sound of your front and rear speaker drivers.

VERY EASY TO INSTALL AND PERFECT INTEGRATION

Impulse 4.320 – Cables Measuring only 67/8 x 17/8 x 25/8″ (17.65 x 4.6 x 6.7 cm) Impulse 4.320 can easily be concealed within the dashboard or the centre console.

Equipped with high-level (automatic detection feature) and low-level inputs, it is compatible with all head units. Supplied with all fastenings, an adaptor for the head unit’s speaker driver outputs, RCA adaptors for aftermarket head units and power connector, this amp was specially designed to be easy to install. No direct hook up to the vehicle’s battery is required.

An optional ISO connector is available for “Plug&Play” connectivity via the head unit’s harness.

Note: On certain cars, a harness adapter may be necessary.

EXTREMELY VERSATILE

To ensure compatibility with different head units, this amplifier features a 2-channel or 4-channel input selector switch.

Most of all, Impulse 4.320 has been designed to power front and rear speaker drivers. However, it can also be used in a 3-channel or 2-channel mode in order to meet all needs for improving small installations and it can also be used for powering the front speaker drivers and a small subwoofer.

Each pair of channels features an active crossover to adapt the sonic response according to the speaker drivers used. The front channels can be used for wideband speaker drivers or the high-pass filter can be used for frequencies above 75 Hz when only small speaker drivers are used. By avoiding having small speaker drivers reproduce very low frequencies, the sound will have more clarity. The rear channels are equipped with an active crossover (wideband, high-pass or low-pass) and with progressive phase adjustment for powering a small subwoofer or wideband speaker drivers of different sizes.

✓ Available at our Brookvale workshop
✓ Installed by qualified auto electricians and audio technicians
✓ Over 30 years of combined car audio experience
✓ OEM-grade wiring looms, connectors and installation materials
✓ Warranty-backed workmanship
✓ Suitable for cars, 4WDs, SUVs, utes and commercial vehicles

Whether you're upgrading speakers, adding an amplifier, installing a multimedia system, fitting a dash cam, or improving vehicle security, our experienced installation team can recommend and fit the right solution for your vehicle.

Need installation pricing or advice? Contact our team on 02 993 92977or visit our Brookvale showroom.

Our Northern Beaches team can assist with:

✓ Product recommendations
✓ Vehicle compatibility checks
✓ Installation advice
✓ System upgrade planning
✓ Warranty and support enquiries

Call 02 993 92977, visit our Brookvale showroom, or use our contact form and we'll help you find the right solution for your vehicle.

Thank you for shopping at Audio Emporium. The following are the terms and conditions that constitute our Shipping Policy.

Where We Ship

We ship to all Australian states and territories, including PO Boxes. We do not currently ship outside Australia.

Shipment Processing

We aim to dispatch orders placed before [CUT-OFF TIME] AEST on a business day the same business day, where stock is on hand. Orders placed after the cut-off, on weekends or on public holidays are dispatched the next business day.

If we are experiencing a high volume of orders or if a product needs to be sourced from our distributor, dispatch may take longer. If there is a significant delay, we will contact you by email or phone.

Orders are not dispatched or delivered on weekends or public holidays.

Shipping Rates and Delivery Estimates

We offer free standard shipping on all orders within Australia to most metropolitan addresses. Bulky or heavy items — such as large subwoofers, multiple amplifiers, or full system shipments — may attract an additional freight surcharge, which will be shown at checkout before you confirm your order. Remote and regional addresses may also attract additional freight depending on the courier.

Estimates are guidelines provided by our courier partners. Delays can occasionally occur and are outside our control.

Carriers

We dispatch via [COURIER PARTNERS]. Carrier selection depends on order size, weight and destination.

Shipment Confirmation and Order Tracking

You will receive a Shipment Confirmation email once your order has been dispatched, containing your tracking number. The tracking number will typically be active within 24 hours.

Shipping to PO Boxes and Parcel Lockers

We can ship to PO Boxes and Australia Post Parcel Lockers, subject to carrier and item size restrictions. Bulky items may not be deliverable to these addresses; if that's the case for your order, we will contact you to arrange an alternative.

Damaged in Transit

If your order arrives damaged, please contact us at [EMAIL] or call [PHONE] within 48 hours of delivery, with photos of the damaged packaging and product. We will work with the courier to file a claim and arrange replacement or refund as appropriate. Please retain all original packaging until the claim is resolved.

Lost Parcels

If your tracking shows the parcel as delivered but you haven't received it, please contact us within 7 days of the delivery date so we can investigate with the courier.

Customs, Duties and Taxes

As we ship within Australia only, no customs duties apply. GST is included in all prices displayed on the site.

Click and Collect

Sydney customers can collect online orders directly from our Northern Beaches showroom by selecting "Click and Collect" at checkout, subject to stock availability. We will email you when your order is ready for collection. Please bring photo ID and a copy of your order confirmation.

Installation Customers

If your order includes installation at our Sydney workshop, products are held at the workshop and not shipped. We will contact you to confirm your installation booking.

Contact

Shipping questions can be sent to info@audioemporium.com.au or call 02 993 92977.