The ZXI.4XL is one of the leading amplifier families in DS18’s catalog!

As one of our best-selling lines, it’s only right we honor it with EXTREME upgrades given our decade of experience!

The ZXI.4XL is one of the most versatile amplifiers in our catalog: this Full-Range Amplifier outputs enough power to supercharge any powerful competitive or casual sound system and any of the components that build it!

The ZXI.4XL 4-channel amplifier supplies pure and clean 4-channel signal and 2 channel outputs to run HQ signal to run to another amp or string of amps. There is also a selector switch to move from 4 channel to 2 channel mode.

Built from top of the line components (Block Style Terminals, Fully Variable Crossover, Platinum Finish Connections, and High Quality Protection Circuitry) the ZXI.4XL amplifier is guaranteed to deliver insane quantities of RMS Power on demand!

The ZXI.4XL handles 250W x 4CH @ 4 OHM; 400W x 4CH @ 2 OHM; and 800W x 2CH @ 4 OHM Bridge of RMS Power.

• Platinum finish connections that resist corrosion
• Fully Variable Crossovers
• Protection Circuitry against Overload, Short Circuit, Thermal, Low Voltage, High Voltage, and Reverse Polarity
• Up to 16.8v of Operational Voltage
• Filters are included so you can adjust the high pass and low pass filters so your speakers perform at their best.
• 0 to 180 degree phase switch is included for more complex systems that need the phase reversed.
• Fuses included on the amplifier for easy access and amp circuitry protection.
• The terminals are stainless and use Allen keys to tighten for the best connectivity possible.

• Total Watts (Peak): 4800W
• RMS Power @ 4 ohm: 4 x 250W
• RMS Power @ 2 ohm: 4 x 400W
• RMS Power @ 4 ohm Bridge: 2 x 800W

• Frequency Response: 20Hz-20KHz
• Signal to Noise Ratio: >90dB
• Efficiency @ 4ohm: >85%
• Damping Factor: >200
• Total Harmonic Distortion (THD): <0.1%
• Low Level Input Range: 0.2 - 6v
• Selectable X-Over: LPF/FULL/HPF
• X-Over Filter Range: 40Hz-4KHz

• Amplifier Class: Digital
• Amplifier Type: Stereo Full Range
• Number of Channels: 4
• Minimum Impedance: 2 ohm (Stereo) / 4 ohm (Bridge)
• Led Indicator: Power/Protection/Clip
• Power Input Terminal Size: 4ga
• Fuse Size: 200A (External)
• Thermal Protection
• Over-Load Protection
• DC Output Protection
• Short Circuit Output Protection
• Voltage Input Protection
• Body Color / Finish: Black Aluminum Brush

• Overall Length: 12.2" / 310mm
• Overall Wide: 5.66" / 144mm
• Overall Height: 1.9" / 48.5mm
• Heat-sink Length: 11.42" / 290mm

Shipping Policy

DBs Car Audio is proud to offer fast & free shipping on all items listed in our store!!

Shipping Methods and Transit Times

DBs Car Audio ships orders from our Saint Cloud, Florida location. On occasion, orders will be fulfilled directly by the manufacturer or distributor in order to reduce the shipping time..

Order Tracking

Once an order has been shipped, we send our customers an email with the tracking number for the order. Click on the tracking link in the email to follow the location of the package on the carrier's website. If you did not receive a tracking number by email or need to confirm the tracking information, please contact call us at 1-800-927-9390

Signature Required

Due to the valuable contents of some shipments, DBs Car Audio will only require a signature upon delivery if the order is over $500. Such guidelines will not be overruled upon the customer's request. Please understand that this is a security measure taken by our Company to ensure the safe delivery of each package and guarantee excellent service. Many of our third-party shipping carriers and payment companies require signatures upon delivery to protect against fraud and theft. Customers may request a signature upon delivery by emailing us at dbscaraudiofl@gmail.com.

Shipping Policy Disclaimer

Delivery estimates do not apply to items shipped directly from the manufacturer, nor out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 continental states.

Standard delivery time for domestic customers will average from 2-4 business days, but can take longer in some cases. Saturday, Sunday and national holidays are not considered business days for delivery purposes.

Our Shipping Guarantee applies only to shipments delayed due to our service failure. We will not guarantee shipments that are delayed due to an act of god (ex: weather), a catastrophic event, or failure by our delivery partners. Our guarantee is also voided if incorrect billing or shipping information is given and results in your order being delayed to its destination. Our guarantee is also void if no one is available to sign for shipment when delivery attempt is made if a signature is required.