About: DS18 SMD-500.4AB 4-Channel Class AB Amplifier with VM-1 Voltmeter and Digital LED Lights 

Introducing the SMD-500.4AB— engineered by DS18 in collaboration with Steve Meade Designs. Built for superior audio performance, it features premium Korean components and Sky High Car Audio’s OFC Internal Wiring. With DS18’s reputation as the LOUDEST in pro audio and Steve Meade’s industry-standard installation peripherals, this amp is built for extreme power and convenience.

Manufactured using premium components from Korea, this amplifier guarantees the reliability and powerful sound quality that Steve Meade Designs is known for. The SMD-500.4AB is not only visually striking but also engineered for top-tier performance. It delivers an impressive 300W x 4 RMS at 4-ohm, 500W x 4 RMS at 2-ohm, and 1000W x 2 RMS bridged at 4-ohm, driving even the most demanding setups with ease.

The SMD-500.4AB is designed for audiophiles seeking superior sound quality. As a Class AB amplifier, it prioritizes clarity and detail, delivering pristine audio performance. Equipped with a precision attenuation knob for easy bass control, it maintains a .10% THD, ensuring exceptional Total Harmonic Distortion levels. With 0 AWG power and ground inputs and a 200A fusing requirement, it’s built for robust power delivery. Additional features include selectable 2/4 channel inputs and Tiffany RCA connectors for the highest quality signal transfer in your setup.

Product Highlights:

• 4 Channel Stereo Full Range
• Exclusive SMD Design ~ Class AB
• 2 - 4 Ohm Stable ~ 4 X 500 Watts @ 2 Ohms RMS
• VM-1 Voltmeter ~ Fans ~ Input Selector
• Acrylic Window ~ Digital LED Lighting w/ Remote
• Bass Knob ~ LED Indicators ~ Made in Korea

Features:

• Amplifier Class: Analog AB
• 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: 0 AWG
• Recommended Fuse Size (Not Included): 200A
• Cooling Fan: Yes
• Thermal Protection: Yes
• Over-Load Protection: Yes
• DC Output Protection: Yes
• Short Circuit Output Protection: Yes
• Voltage Input Protection: Yes
• Clipping Protection: Yes
• Body Color / Finish: Black
• Input Mode Selectable: Yes (2/4ch)
• Metal Adjustment Knobs with Click Position: Yes
• Professional Tiffany RCA Connectors: Yes
• Remote Level Knob with Clip indicator: Yes (Metal Case)
• Reliable Heavy Duty Korean Board Design
• High-Power Class AB Circuit Design
• Exclusive SMD design with VM-1 Voltmeter
• IR Remote Control for LED patterns and colors

Specifications:

• RMS Power @ 4 ohm: 300W x 4
• RMS Power @ 2 ohm: 500W x 4
• RMS Power @ 1 ohm: N/A
• RMS Power @ 4 ohm Bridge: 1000W x 2
• Operational Voltage: 8.5-16.5v
• Frequency Response: 10Hz-24KHz
• Signal to Noise Ratio: >98dB
• Efficiency @ 4ohm: >70%
• Damping Factor: 160
• Input Impedance: 22K ohm
• Channel Separation: >50dB
• Total Harmonic Distortion (THD): 0.10%
• Low Level Input Range: 200mV-6V
• High Level Input: NO
• Selectable X-Over: HPF/FULL/LPF
• X-Over Filter Range: 50Hz-2KHz
• Bass Boost Range: 0~9dB
• Bass Boost Frequency: 30Hz-60Hz
• Phase Select: 0~180

Dimensions:

• Overall Length: 16.6" / 422mm
• Overall Width: 9.15" / 232mm
• Overall Height: 3" / 76mm
• Heatsink Length: 15" / 380mm