- Ultra compact 4 channel Class D amplifier with built in Bluetooth 5.1 for wireless music streaming without a head unit
- Delivers 70W RMS x4 at 4 ohms, 140W RMS x4 at 2 ohms, or 220W RMS x2 bridged at 4 ohms
- Ideal for motorcycles, powersports, marine, and compact vehicle installs where space is limited
- Selectable HPF, LPF, or full range crossover with automatic switching between Bluetooth and RCA inputs
- Weather resistant brushed aluminum chassis with full protection circuitry for reliable daily performance
DS18 X4BT 4-Channel Class D Full-Range Amplifier with Bluetooth 70W RMS
This Listing Includes:
- (1) DS18 X Series X4BT 4-Channel Ultra Compact Full-Range Amplifier with Bluetooth
The DS18 X4BT from the X Series is an ultra compact 4 channel full range amplifier built for modern audio systems that need clean multi channel power and wireless streaming in a small footprint. With built in Bluetooth 5.1, the X4BT lets you stream music directly from your phone without a head unit, making it perfect for motorcycles, powersports, marine, and compact vehicle installs.
Despite its small size, the X4BT delivers efficient Class D output with low heat and dependable performance. It produces 70 watts RMS per channel at 4 ohms, 140 watts RMS per channel at 2 ohms, or can be bridged to deliver 220 watts RMS per channel at 4 ohms. This makes it ideal for running a full front and rear speaker setup, components, or compact subwoofer configurations.
Selectable crossover modes allow flexible system tuning, while automatic input switching between Bluetooth and RCA keeps everyday use simple. Built with a brushed black aluminum chassis, four layer PCB design, and full protection circuitry, the X4BT is engineered to handle demanding environments where space and reliability matter most.
If you want a compact all in one amplifier that delivers wireless control and clean multi channel power, the DS18 X4BT is a solid upgrade.
Specifications:
- Amplifier Type: 4-Channel Stereo Full Range
- Amplifier Class: Digital Class D
- RMS Power @ 4 Ohm: 4 x 70 Watts
- RMS Power @ 2 Ohm: 4 x 140 Watts
- RMS Power @ 4 Ohm Bridged: 2 x 220 Watts
- Peak Power: 1320 Watts
- Minimum Impedance: 2 Ohm Stereo / 4 Ohm Bridged
- Frequency Response: 20Hz to 20kHz
- Signal to Noise Ratio: 90dB
- Efficiency @ 4 Ohm: 80 Percent
- Damping Factor: 200
- Total Harmonic Distortion: 0.20 Percent
- Low Level Input Range: 0.2 to 5V
- Selectable Crossover: LPF / HPF / Flat
- Crossover Frequency: Fixed 80Hz
- Bluetooth Version: 5.1
- Bluetooth Profile: A2DP 1.3.1
- Bluetooth Range: Up to 60 ft
- Audio Codec: SBC / AAC
- Power Input Terminal: 8 Gauge
- Fuse Rating: 25A
- LED Indicator: Power / Protect
- Protection: Thermal, Overload, Short Circuit, DC Output, Voltage
- Finish: Brushed Black Aluminum
- Weather Resistant: Yes
- Automatic Bluetooth or RCA Input Switching: Yes
- 2 or 4 Channel Input Selector: Yes
Dimensions:
- Overall Length: 5.54 Inches
- Overall Width: 3.24 Inches
- Overall Height: 1.37 Inches
- Heatsink Length: 4.75 Inches
Accepted Payment Methods at Big Jeff Audio
At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:
Credit and Debit Cards
- Visa
- Mastercard
- American Express
- Discover
- Diners Club
Digital Wallets
- Amazon Pay
- Apple Pay
- Meta Pay (formerly Facebook Pay)
- Google Pay
- Shop Pay
- PayPal
International Payment Methods
Bank Transfers
Financing Options
We also offer financing options to make purchasing easier. Learn more about our financing options here.
- Klarna
- Affirm
- Sezzle
- Snap
- Acima
- Tiptop
If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.
Shipping Options and Delivery Time
Do You Offer Expedited Shipping?
Yes! At checkout, you can select from different shipping options:
- Standard Shipping: Free for orders over $100.
- Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.
How Long Does Delivery Take?
- Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
- Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.
What Happens If My Package Is Undeliverable?
If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.
Why Can’t I Track My Order?
If you're having trouble tracking your order:
- Make sure you’ve received the shipping confirmation email with the tracking number.
- Log into your account on our website and use the “Check Your Order Status” button.
- If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.
