• HIGH-OUTPUT 4-CHANNEL POWER: The B2 Audio El Cholo 4000.4 Class D full-range amplifier delivers 4 x 700W RMS at 4 ohms, 4 x 1,000W RMS at 2 ohms, or 2 x 2,000W RMS bridged at 4 ohms, providing powerful output for high-performance car audio systems.
• VERSATILE FULL-RANGE PERFORMANCE: Designed to power midrange speakers, loudspeakers, and subwoofers with a 20Hz - 20kHz frequency response. Supports both stereo and bridged configurations, making it ideal for custom high-output audio builds.
• ADVANCED CROSSOVER CONTROL: Adjustable 40Hz - 4kHz high-pass and low-pass filters with 24dB/octave slopes, band-pass filtering, and 10X crossover multipliers allow precise frequency adjustments for different speaker configurations.
• PRECISION TUNING & SIGNAL MONITORING: Independent front and rear gain controls, selectable 2CH/4CH RCA input modes, and dedicated clipping indicators for channels 1 - 2 and 3 - 4 help optimize system performance and identify signal distortion.
• HEAVY-DUTY DESIGN & PROTECTION: Features 0 AWG power and ground terminals, a 300A external fuse rating, thermal and electrical protection circuitry, and a selectable illuminated B2 badge. Operates from 9V - 16.5V and requires adequate electrical system support for full-rated output.

B2 Audio El Cholo 4-Channel Class D Full-Range Amplifier 4000W RMS 2 Ohms

This Listing Includes

• (1) B2 Audio Amplifier B2-EL-CHOLO-4000.4

Built with power, heritage, and attitude, the B2 Audio El Cholo 4000.4 brings serious performance to the El Cholo amplifier family. Inspired by Southwest lowrider culture and the community that helped shape the original El Cholo monoblock, this high-efficiency Class D amplifier delivers exceptional output in a versatile 4-channel design. Whether you're building a powerful front-stage system, driving multiple loudspeakers, or powering subwoofers, the El Cholo 4000.4 delivers the flexibility and performance needed for high-output car audio.

Producing 4 x 700 watts RMS at 4 ohms, 4 x 1,000 watts RMS at 2 ohms, or 2 x 2,000 watts RMS bridged at 4 ohms, the El Cholo 4000.4 is designed for demanding audio systems. Its full-range frequency response of 20 Hz - 20 kHz allows it to power everything from midrange drivers and loudspeakers to subwoofers. Independent front and rear gain controls, adjustable high-pass and low-pass crossovers, and band-pass filtering provide the flexibility to fine-tune your system for your specific speaker configuration.

The El Cholo 4000.4 also features front and rear clipping indicators, power and protection LEDs, heavy-duty 0 AWG power connections, and an illuminated B2 badge with selectable lighting modes. With its rugged construction, high-output capabilities, and distinctive El Cholo styling, this amplifier combines modern performance with the culture and craftsmanship behind the B2 Audio name.

Features

• High-Efficiency Class D Design: Delivers powerful, efficient full-range amplification for demanding car audio systems.


• 4,000 Watts RMS at 2 Ohms: Produces 1,000 watts RMS per channel at 2 ohms with sufficient electrical support.


• Versatile 4-Channel Configuration: Powers multiple loudspeakers, midrange drivers, or subwoofers in stereo configurations.


• Bridgeable Output: Supports two bridged channels delivering up to 2,000 watts RMS each at 4 ohms.


• Full-Range Performance: 20Hz-20kHz frequency response supports a wide range of speaker applications.


• Adjustable High-Pass and Low-Pass Filters: 40Hz - 4kHz crossover adjustment with a 24dB/octave slope.


• Band-Pass Filtering: Allows simultaneous high-pass and low-pass crossover operation for more precise frequency control.


• 10X Crossover Multiplier: Expands crossover adjustment capabilities for flexible system tuning.


• Independent Front and Rear Gain Controls: Allows separate input sensitivity adjustments for channels 1 - 2 and 3 - 4.


• 2CH/4CH Input Selection: Operates all four channels from one stereo RCA input pair or separate front and rear inputs.


• Front and Rear Clipping Indicators: Dedicated clip LEDs help identify signal distortion during system tuning.


• Power and Protection Indicators: LED status indicators provide visual feedback on amplifier operation.


• Illuminated B2 Badge: Selectable LED lighting modes add a distinctive visual element.


• 0 AWG Power and Ground Terminals: Heavy-duty connections accommodate high-current electrical systems.


• Built-In Protection Circuitry: Protection against short circuits, speaker overload, excessive temperatures, and voltage outside the operating range.


• El Cholo Styling: Distinctive design inspired by Southwest lowrider heritage and car audio culture.

Specifications:

• Brand: B2 Audio


• Series: El Cholo


• Model: El Cholo 4000.4


• Amplifier Type: 4-Channel Full-Range


• Circuit Configuration: High-Efficiency Class D


• RMS Power @ 4 Ohms: 4 x 700W


• RMS Power @ 2 Ohms: 4 x 1,000W


• RMS Power @ 4 Ohms Bridged: 2 x 2,000W


• RMS Power Rating Conditions: 14.4V, less than 1% THD


• Amplifier Dyno Power @ 4 Ohms: 4 x 600W


• Amplifier Dyno Power @ 2 Ohms: 4 x 850W


• Amplifier Dyno Power @ 4 Ohms Bridged: 2 x 1,700W


• Minimum Impedance (Stereo): 2 Ohms


• Minimum Impedance (Bridged): 4 Ohms


• Frequency Response: 20Hz - 20kHz


• Signal-to-Noise Ratio: Greater Than 90dB


• Input Sensitivity: 6V - 0.2V


• High-Pass Crossover: 40Hz - 4kHz


• Low-Pass Crossover: 40Hz - 4kHz


• Crossover Slope: 24dB/Octave


• Band-Pass Crossover: Yes


• Subsonic Filter: N/A


• Bass EQ: N/A


• Input Mode Selection: 2CH / 4CH


• Operating Voltage: 9V - 16.5V


• Power Terminal Size: 1 x 0 AWG (67mm²)


• External Fuse Rating: 300A


• Minimum Additional AGM Battery Capacity: 250Ah / 4,000 CCA


• Minimum Additional Lithium Battery Capacity: 45Ah (6C)


• Power Indicator: Blue LED


• Protection Indicator: Red LED


• Clip Indicators: Front (CH 1 - 2) / Rear (CH 3 - 4)


• Illuminated Logo: B2 Badge with Selectable LED Modes

Dimensions:

• Length: 18.86" (479mm)


• Width: 9.65" (245mm)


• Height: 2.48" (63mm)

Important Installation Information:

The El Cholo 4000.4 requires a properly supported electrical system to achieve its rated output. B2 Audio recommends a minimum dedicated battery supply of 250Ah / 4,000 CCA AGM or 45Ah 6C lithium, in addition to the vehicle's original battery.

The amplifier requires external fusing at both the battery and amplifier, with appropriately sized power and ground wiring. Operation below the minimum rated impedance or outside the specified 9V - 16.5V operating range may cause protection mode, damage, or warranty issues.

Power Rating Note: Published RMS ratings are measured at 14.4V and less than 1% THD. The manufacturer also provides separate amplifier-dyno results measured at 1,000Hz, which are listed above.

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