Luxman C-700u

Luxman's new C-700u preamp benefits from the same uncompromising construction and attention to detail as the D-06u. At its heart lies Luxman's fourth-generation ODNF (Only Distortion Negative Feedback) amp circuit, which restricts feedback to distortion components only, thus greatly enhancing signal-to-noise performance. This is directly coupled to the LECUA 1000 attenuator circuit, trickled down from the flagship C-900u preamp, allowing an extremely fine degree of volume control and left/right balance adjustment whilst maintaining sound quality at the highest level.

Exceptional signal purity doesn't have to mean stripped-to-the-bone facilities - not when they are implemented with Luxman's no-compromise approach. The C-700u includes precision bass and treble tone adjustment (extremely useful given the variability of today's music formats), a 'loudness' control for low-level listening, a 'line straight' button that bypasses the tone controls, and phase selection for the balanced inputs. The FL display can even be zoomed in stages via the remote, ensuring key information remains readable no matter how far the listener is from the preamp (the D-06u shares this feature).

"The sound was open, clean transparent. No haze obscurring any of the atmosphere." ~ Hi-Fi News, 2015

SPECIFICATIONS

Item Value

Input Sensitivity

LINE 250 mV / 1 V output, 1 kHz, load 50 kΩ

BAL LINE 250 mV / 1 V output, 1 kHz, load 100 kΩ

LINE → BAL LINE 250 mV / 1 V output, 1 kHz, load 100 kΩ

BAL LINE → LINE 250 mV / 1 V output, 1 kHz, load 50 kΩ

Maximum Output

LINE 11 V / distortion 0.1 %, 1 kHz, load 50 kΩ

BAL LINE 11.5 V / distortion 0.1 %, 1 kHz, load 100 kΩ

LINE → BAL LINE 11.5 V / distortion 0.1 %, 1 kHz, load 100 kΩ

BAL LINE → LINE 11 V / distortion 0.1 %, 1 kHz, load 50 kΩ

Input impedance

LINE 46 kΩ / 1 kHz

BAL LINE 67 kΩ / 1 kHz

Unselected LINE 33 kΩ / 1 kHz

Unselected BAL LINE 67 kΩ / 1 kHz

Output impedance

LINE 90 Ω / 1 kHz

BAL LINE 600 Ω / 1 kHz

Total harmonic distortion

LINE 0.007 % / 1 V output, 20 Hz - 20 kHz, load 50 kΩ

BAL LINE 0.010 % / 1 V output, 20 Hz - 20 kHz, load 100 kΩ

LINE → BAL LINE 0.007 % / 1 V output, 20 Hz - 20 kHz, load 100 kΩ

BAL LINE → LINE 0.009 % / 1 V output, 20 Hz - 20 kHz, load 50 kΩ

Frequency response

LINE +0, −0.1 dB / 1 V output, 20 Hz - 20 kHz, load 50 kΩ

+0, −3.0 dB / 1 V output, 5 Hz - 120 kHz, load 50 kΩ

BAL LINE +0, −0.2 dB / 1 V output, 20 Hz - 20 kHz, load 100 kΩ

+0, −3.0 dB / 1 V output, 5 Hz - 80 kHz, load 100 kΩ

LINE → BAL LINE +0, −0.2 dB / 1 V output, 20 Hz - 20 kHz, load 100 kΩ

+0, −3.0 dB / 1 V output, 5 Hz - 110 kHz, load 100 kΩ

BAL LINE → LINE +0, −0.2 dB / 1 V output, 20 Hz - 20 kHz, load 50 kΩ

+0, −3.0 dB / 1 V output, 5 Hz - 85 kHz, load 50 kΩ

S/N ratio

LINE 125 dB (IHF-A) / distortion 0.1 %,1kHz, load 50 kΩ

BAL LINE 122 dB (IHF-A) / distortion 0.1 %,1kHz, load 100 kΩ (ATT. −87dB)

LINE → BAL LINE 122 dB (IHF-A) / distortion 0.1 %,1kHz, load 100 kΩ

BAL LINE → LINE 125 dB (IHF-A) / distortion 0.1 %,1kHz, load 50 kΩ (ATT. −87dB)

Tone control

Bass ±8 dB at 100 Hz

Treble ±8 dB at 10 kHz

Loudness Control

100 Hz +7 dB

10 kHz +5 dB

Power consumption 28 W / 2 W (at standby)

Power supply 230 V ~ (50 Hz)

Max. external dimensions 440 (W) × 130 (H) × 430 (D) mm

Weight 14.6 kg (main unit only)

Prix: 7,490€ TTC