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AmplifiersHeadphone AmplifiersPre-AmplifiersDiscontinued
Estimated price (community-sourced)
$150
Around — community and catalog average, updates slowly
About the Magnius
The Magnius is a desktop solid-state headphone amplifier and preamplifier with balanced XLR and single-ended RCA inputs, plus balanced XLR and RCA preamp outputs. It provides both a 4-pin XLR balanced headphone output and a 1/4-inch single-ended output, with selectable high and low gain. Its composite amplifier design uses OPA1688 input buffers, an LME49724 differential amplifier, and a TPA6120A2 current-feedback output stage.
Specifications
Type: Solid-state headphone amplifier and preamplifier; Inputs: balanced XLR, single-ended RCA; Headphone outputs: 4-pin XLR balanced, 1/4-inch (6.35 mm) single-ended; Preamp outputs: balanced XLR, single-ended RCA; Gain: selectable high/low; Frequency response: 20 Hz–20 kHz, ±0.01 dB; Balanced output power: 6 W/channel at 16 Ω, 5 W/channel at 32 Ω, 3.2 W/channel at 50 Ω, 1 W/channel at 300 Ω, 0.5 W/channel at 600 Ω; Single-ended output power: 2.2 W/channel at 16 Ω, 2 W/channel at 32 Ω, 1.3 W/channel at 50 Ω, 0.3 W/channel at 300 Ω, 0.15 W/channel at 600 Ω; Output impedance: less than 0.1 Ω; Input impedance: 50 kΩ; Dimensions: 9 × 6 × 1.5 in; Weight: 2 lb; Power supply: 14–16 VAC external transformer.