Integrated amplifiers — MasterSound Evolution 845

The Evolution 845 is an accomplished single-ended-triode integrated amplifier from MasterSound, sitting above the Compact 845 with substantially greater output power. The Evolution 845 represents MasterSound's most ambitious current statement in single-ended-triode integrated amplifier engineering.

Key specs that matter

One balanced XLR input and three single-ended inputs are provided. Input impedance is 50,000 ohms on both connections. Output power is 2 x 50W into 8 ohms - considerably more than the Compact 845's 24W. Frequency response spans 8Hz to 40,000Hz within plus-or-minus 3dB, matching the Compact-series. At 540 x 470 x 270mm and 53kg, the Evolution 845 represents a more substantial commitment than the Compact 845, reflecting MasterSound's most ambitious current single-ended-triode engineering.

Sound and use context

Expect the exceptionally rich, harmonically resonant character single-ended-triode amplification is broadly celebrated for among tube enthusiasts, with the substantially greater 50W-per-channel output representing MasterSound's most accomplished current engineering ambition.

Pairing

The substantial 50W-per-channel output suits a broader selection of loudspeaker sensitivities than the more modest Compact 845.

Alternatives

MasterSound's own Compact 845 offers a more compact, lower-power alternative within the same broader single-ended-triode catalogue.