Luxman L-570Z's

1 9 9 2 september 1992
1 9 9 4 1994

Ultimate 150,000¥ Japan-only updated version of the L-570X's version of the L-570 bestseller.

The upgrades continued on the same route : more dynamic power-supply, better circuit design to avoid taming dynamics and phase shifts. In other words, making the L-570 sound more like a (much bettered) L-540.

So, on top of what was added to the L-570X's : partly redesigned circuit boards, gold-plated & nitrogen-filled sealed relays, reinforced chassis and preamp power-supply, pure copper Heat-Pipe fins and 6N (99,9999%) pure copper wiring throughout, bus bars included.

The rest is entirely the same as the L-570X's - attenuator, Heat-Pipe, five-point FRP base and even specifications.
Visually, the Z's is also entirely identical to the original L-570 / L-570X's but for the color of the "monitor" switch which was changed to red (last call to be reminded of the L-550 origins).

Despite its very steep price, the Z's version sold rather well, even if half of audiophilia planet already had an L-570 : japanese audiophiles in late 1992 were still willing to go the full-tilt 500,000¥ boogie.

There was however no fourth version and the next step was the "cheaper" L-580 (cheaper at 380,000¥ that is !) which ushered the AZDEN period of Luxman and the goodbye of Alpine.

Nudies of a real 570Z's here and a great image of a Z's supporting a very relaxed guest here.

Luxman L-570Z's, image 1 Luxman L-570Z's, image 2 Luxman L-570Z's, image 3
Luxman L-570Z's specifications
Title Value
Power output : 2x 50W (Class A, 8 Ohm)
THD : 0,01% (8 Ohm, "direct" on)
IMD : 0,01% (8 Ohm, "direct" on)
Inputs : 2,5mV / 50kOhm (MM)
0,1mV / 100 Ohm (MC)
150mV / 47kOhm (5x line & XLR)
150mV / 47kOhm (2x tape play & processor loop)
S/N ratio : 86dB (MM, for 5mV input)
74dB (MC, for 250µV input)
108dB (lines)
Frequency response : 20Hz...20Khz (MM, ± 0,3dB)
20Hz...20Khz (MC, ± 0,3dB)
10Hz...100Khz (lines, -1dB)
Tilt tone control : ± 4,5dB centered on 1Khz
PC : 270W
Dimensions : 43,8 x 17,6 x 46,7cm
Weight : 30kg.
List price : 500,000¥
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