Integrated amplifiers — Luxman L-507Z

The Luxman L-507Z is an integrated amplifier that includes its own phono section and is placed above the L-505Z in Luxman's L-series of integrated models.

Key specs that matter

The L-507Z is rated at 110 W per channel into 8 ohms and 220 W into 4 ohms, a clean doubling that the L-505Z with its 100 W and 150 W figures does not reach. Damping factor is 350, against 200 for the L-505Z. The amplifier has two balanced inputs, one more than the L-505Z, together with four single-ended inputs and phono. Balanced input impedance is 79,000 ohms compared with 55,000 ohms on the smaller model, single-ended impedance is 47,000 ohms and line sensitivity is 180 mV. Frequency response extends from 20 Hz to 100 000 Hz, the signal-to-noise ratio is 105 dB and THD plus noise is 0.03%. The chassis is 440 x 178 x 454 mm and at 25.4 kg it is heavier than the L-505Z.

Pairing

Doubling its output into 4 ohms suits the L-507Z to inefficient speakers and those that present a hard load.

Alternatives

The Luxman L-509X sits above it with even more output and connectivity.