DSA 125X4 | 125W Studio Monitor Power Amplifier

The DSA SERIES amplifiers from Danley Sound Labs are a range of professional-grade audio amplifiers designed for a wide range of applications. These amplifiers feature advanced technology and innovative engineering to deliver high performance, reliability, and versatility. The DSA SERIES amplifiers are equipped with a variety of inputs allowing them to easily integrate into a variety of systems. Additionally, they feature built-in DSP processing, which enables users to adjust the amplifier’s settings and control the sound quality to meet their specific needs. The amplifiers are also highly efficient, reducing energy consumption and ensuring consistent performance, even under demanding conditions. With their compact design and flexible mounting options, the DSA SERIES amplifiers are easy to install and can be used in a variety of settings, including studios, performance venues, and commercial spaces. Whether you’re looking for powerful, high-quality audio in a compact package or need a reliable amplifier for demanding applications, the DSA SERIES amplifiers from Danley Sound Labs are an excellent choice.

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Designed and assembled in GA.


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The DSA125x4 is a compact and highly efficient amplifier designed for smaller sound systems. It features four channels, each capable of delivering 125 watts of power with 250 per channel power sharing, making it ideal for small venues or applications where space is limited. Additionally, the series can power share up to 250W per channel offering maximum flexibility for the installer. Its half-space rack mount form factor makes it easy to install in tight spaces, and its flexible mounting options provide additional versatility. The DSA125x4’s advanced technology ensures consistent performance, even under demanding conditions, while its low energy consumption helps to reduce overall operating costs.


Channels 4 x Lo-Z/2 x Hi-Z
Output power @
All channels driven
125W Lo-Z / 250W Hi-Z
Output power @
Single channel driven
Output Power @
16Ω*** All channels
Power Consumption 150W
Dimensions 1.75 x 8.66 x 11.65 in | 44.5 x 220 x 296 mm
Weight 6.2 lbs | 2.8kg
Output Circuitry UMAC™ Class D – full bandwidth PWM modulator with ultra-low distortion
Output Voltage 70Vp / 140Vpp (unloaded) // Bridged 140Vp / 280 Vpp (unloaded)
Signal To Noise-Ratio >106dB (A-weighted, 20Hz-20kHz, 8Ω load)
THD+N (typical) < 0.05% (20Hz-20kHz, 8Ω load, 3dB below rated power)
Frequency Response 20Hz-20kHz (+0/-0.25dB (8Ω load, 3dB below rated power)
Protection Circuits Short circuit -, DC -, Undervoltage -, Temperature – and Overload protection
Power Supply UREC™ universal mains switch mode power supply with Power Factor Correction (PFC) and standby converter
Operating temperature 0-40C
Operating Voltage/Frequency Universal Mains, 100V-240V, 50Hz-60Hz
Standby Consumption <0.5W
Accessories Rack mount kit
Wall/desktop mount kit , 1x IEC to NEMA 5-15
Power Ratings 1% THD @ 120Vac and 230Vac


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