Preamplifiers — Orpheus Lab H Two 33BD Opus II

The H Two 33BD Opus II is a flagship preamplifier from Orpheus Lab, built with comprehensive six-input connectivity and an extraordinarily wide bandwidth. The H Two 33BD Opus II brings Orpheus Lab's most accomplished current engineering to line-stage preamplification.

Key specs that matter

Three balanced XLR inputs and three single-ended RCA inputs are provided, with one balanced and one single-ended output. Output impedance is 50 ohms balanced or 25 ohms single-ended. Frequency response spans an extraordinary 5Hz to 1,500,000Hz within plus-or-minus 3dB - a remarkable bandwidth extending far beyond conventional audible range. Signal-to-noise ratio (unweighted) reaches an exceptional 132dB or 126dB depending on measurement configuration, with total harmonic distortion plus noise under an exceptionally low 0.00063%. At 440 x 420 x 301mm and 50kg, the H Two 33BD Opus II represents Orpheus Lab's flagship-tier current preamplifier engineering commitment.

Sound and use context

Expect exceptionally clean signal handling reflecting the extraordinary 132dB signal-to-noise and near-immeasurable 0.00063% distortion figures, combined with the extraordinary 1.5MHz bandwidth figure representing Orpheus Lab's absolute flagship-tier current engineering ambition.

Pairing

The comprehensive six-input connectivity comfortably accommodates source-rich system and Orpheus Lab's own H Three M1400 Opus II or H Three M800 Opus II power amplifiers offer natural, brand-coherent pairings.

Alternatives

Orpheus Lab's own Absolute Integrated Amplifier A Four I200 offers an all-in-one alternative combining preamplification and power amplification within one chassis instead.