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Luxman C-700u Control Amp
Influenced by the flexibility and supreme sonic performance of the C-600f, the C-700u control amplifier is equipped with version 4.0 of the ODNF circuit which significantly improves the distortion characteristics and overall sound quality. Fitted with the LEUCA1000 attenuator, users have an accurate control whilst the RA-22 also provides quick access to tone control and input selects, making it a comfortable hi-fi experience and a joy to hear.
| 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) |
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“As a pair the Luxmans are sumptuous without being overblown, sweetened or smoothed, and anything with tonal depth sounds more convincing than usual….
The Luxman pairings ability to reveal detail is largely because the noise floor is so low: put on a multi-layered recording and you hear the layers, all the effects, and the precise nature of the image.“The M-700u taken alone is a powerful and subtle beast… There is no sense of the amp gripping the speaker but the layers it uncovers in the mix show that distortion is being kept at bay, its not an iron fist but its grip is smooth and firm.
“Luxman remains a brand to be contended with, its sound is ultra refined, which means that it can deliver a fully render4ed, high resolution sound that is tonally stronger than a great many solid stae designs. This combined with world class build and finish quality make the C-700u control amp and the M-700u a very attractive proposition to anyone looking to discover what we mean by high-end. The price to performance and build ratio is impressive and should ensure that this venerable brand goes on to make its name with a new generation of music lovers.”
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