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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).
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) |
Hificonsult är en av landets största butiker för bättre hifi-utrustning
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