SKU: 35955801552

focal IMPULSE 4.320

Sale price$247.05 Regular price$274.50
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

focal IMPULSE 4.320Compact 4 channel digital amplifier With the Impulse 4. 320 amplifier, breathe new life into your car radio. The amplifier of a car radio (standard equipment or purchased subsequently) very quickly admits its limits in terms of power and dynamism. At high sound levels, it quickly goes into saturation and spoils the musical pleasure. To compensate for this lack and allow your speakers to express themselves fully, the Impulse 4. 320 is the ideal

Compact 4-channel digital amplifier

With the Impulse 4.320 amplifier, breathe new life into your car radio. The amplifier of a car radio (standard equipment or purchased subsequently) very quickly admits its limits in terms of power and dynamism. At high sound levels, it quickly goes into saturation and spoils the musical pleasure. To compensate for this lack and allow your speakers to express themselves fully, the Impulse 4.320 is the ideal solution. It will boost your installation without the need for complicated assembly. Semi “Plug and play”, the Impulse 4.320 is a 4-channel digital micro amp, delivering 4 x 55 Watts. The Impulse 4.320 perfectly complements the Focal Integration speakers.

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.


“Y” Adapter cable – FOCAL IMPULSE 4.320 cable kit for quick connection of Impulse amplifier in vehicles with ISO Standard wiring connectors behind the head unit. Simply unplug the ISO plug and connect this cable kit inline (with the Impulse amp) for an immediate improvement in power and sound quality.

(Cable extra $65.00)

    • Easy Plug and Play installation
    • No soldering – Direct IMPULSE 4.320 connection to your original manufacturer head unit
    • No modification of the original manufacturer equipment

WHAT MAKES THE DIFFERENCE

    • Optional ISO connector for semi “Plug&Play” set-ups
      Extremely versatile
      Compatible with all head units
      Easy integration within the dashboard
      Far more powerful than a head unit
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35955801552

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Anonymous
Battle Creek, US
★★★★★ 4
Little big
Size: 20, Color: Rinse Wash
They run just a tiny bit big. The length is more ankle length instead of capri length as shown. However, I liked the wash and the length doesn't bother me. Perfect match to the essentials jacket.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025
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Haley D
Lexington, US
★★★★★ 5
good stretch
Size: 10 Long, Color: Dark Wash
Honestly, these are one of those surprisingly good basics—especially for the price. The biggest standout is the stretch. They’re really comfortable and move with you, so they don’t have that stiff “jeans” feeling. They hug your body in a flattering way without feeling too tight or restrictive, which makes them easy to wear all day. The mid-rise fit is also a sweet spot—not too low, not too high—so they’re super versatile with different tops. What I liked: Very stretchy and comfortable (almost feels like jeggings, but still looks like denim) Flattering skinny fit through the legs Easy everyday jeans—work, errands, going out Great value for the price What to know: Material is on the thinner side (more comfort than “structured denim”) They can lose shape slightly after a full day of wear Not the most durable long-term compared to higher-end denim Final thoughts: These are perfect if you want cute, comfortable, affordable jeans you can throw on with anything. Not premium denim, but for everyday wear—they definitely get the job done and are worth having in your rotation.
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Reviewed in the United States on April 10, 2026
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Debra R Singleton
Battle Creek, US
★★★★★ 5
Amazon Essentials Women's High Stretch Jeans
Size: 14, Color: Iced Blue Light Wash
Amazon Essentials Women's High Stretch Jeans receives positive reviews from me for their significant stretch, comfort, and flattering fit. The jeans are great for everyday wear, they feel soft and thick yet move well. Although some folks find sizing inconsistent, occasionally needing to size up or experiencing a slightly odd fit in certain areas. They're praised for looking good, offering good value, and being versatile enough for various occasions. Sizing can be hit-or-miss for some, but not for me.
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Reviewed in the United States on December 31, 2025
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Amazon Customer
Lake Worth, US
★★★★★ 5
Super comfortable
Size: 8, Color: White
These are high quality fabric.. Not thin and flimsy buy good fabric. Fit me like a glove. I love them and they are very comfortable.
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Reviewed in the United States on May 29, 2026
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Isabel
Charlottesville, US
★★★★★ 4
Size down.
Size: 8 Long, Color: Iced Blue Light Wash
They are high stretch so I would size down from your usual size. I have bought size 10 in their brand and noticed the two previous I've purchased before this one were loose. So when I purchased this one I sized down and they fit good to me. I got long so they are LONG. And the regular would probably fit at your ankle or above. The only reason why I didn’t give it 5 stars was bc I don’t feel it mid rise to me it feels like high rise but I don’t feel them uncomfortable and also THEY ARE NOT SKINNY JEANS. They are straight leg and a tad bit loose so if you want stretch and skinny jeans these are not the ones for you. I only bought them thinking they were like the picture but it’s false advertisement.
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Reviewed in the United States on February 28, 2026

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