Introduced in 1967, the Universal Audio 1176 remains the king of audio limiting, heard on more classic records than any other compressor. Built on the powerful UAFX engine, the 1176 Studio Compressor delivers the same punchy, expressive tones of the world-renowned hardware, now in a compact stompbox.Features: Authentic emulation of the 1176LN Limiting Amplifier in a compact stompbox Switchable true or buffered bypass, and parallel compression mode Single, Dual, and Sustain types for unique compression and gain sounds Input, Output, Attack, and Release settings true to original 1176 hardware Ratio knob includes unique “all buttons in” setting for squashed, gritty textures Specifications: Power requirements: Isolated 9VDC, center-negative, 400mA minimum (power supply not included) Inputs: ¼” unbalanced TS Outputs: ¼” unbalanced TS Input Impedance: 1 Megohm Output Impedance: 500 Ohms Maximum Input Level: 12.2 dBu Maximum Output Level: 12.2 dBu Frequency Response: 20 Hz to 20 kHz, ±1 dB Dimensions: 2.58" (W) x 4.75" (D) x 2.29" (H) / 6.55cm (W) x 12.07cm (D) x 5.81cm (H) (with knobs and protrusions) Weight: 0.299 kg / 0.66 lbs