Cambridge Audio Azur651P AV Preamplifier
Moving Magnet and Moving Coil Phono Preamplifier
Love vinyl? Make the most of any turntable, including the most high-end audiophile models
Adding a turntable to your system is like having a log fire - a radiator may warm you up but you wouldn't want to sit and watch it. There's something uniquely pleasurable about listening to vinyl, something that digital media can't reproduce in quite the same way. While the latest digital formats sound incredible, there's detail and warmth that can't always be expressed in 0s and 1s, crackle that adds character, and live music simply comes to life. And the Azur 651P makes the very most of vinyl, whatever your deck. It even works with Moving Coil cartridges found in the highest of high-end audiophile turntables.
- compatible with moving magnet and moving coil phono cartridges
- external power supply for reduced noise and interference
- acoustically damped full-metal chassis with thick, brushed aluminum front panel
- discrete transistor input stages instead of I.C.s for greater dynamics and lower noise
- single-ended 'Class A' gain stage with audiophile-grade passive RIAA equalization
- defeatable subsonic filter to eliminate very low frequency 'rumble' due to vinyl imperfections
- gain: 39dB(MM), 55dB(MC)
- signal-to-noise ratio: greater then 86dB(MM), greater than 72dB(MC)
- THD: less than 0.005%(MM), less than 0.002%(MC) (20-20,000 Hz)
- RIAA response accuracy: ±0.3dB (20-50,000 Hz) with subsonic filter off
- crosstalk at 20 kHz: greater than 83dB(MM), greater than 69dB(MC)
- Dimensions (WxHxD)46 x 215 x 133mm (1.8 x 8.5 x 5.2'').
DESIGNED FOR PURITY
There's something uniquely pleasurable about listening to vinyl, something that digital media can't reproduce in quite the same way. However most hi-fi amplifiers won't let you plug in a turntable directly. You need to connect via a phono stage (also known as a phono preamp) to make the very small signal from the turntable powerful enough for your main amp to work with. But it's very easy to add noise at this stage, which is why Cambridge Audio have designed the 651P using premium components chosen for exceptional accuracy, amplifying the signal without distorting it or introducing noise.
The 651P works with all turntables, whichever type of cartridge they use. Like the 551P it works with popular Moving Magnet cartridges. But it also works with Moving Coil cartridges found in the highest-end audiophile turntables offering even more accuracy and detail than Moving Magnet. Additionally, even if your amplifier does have a built-in phono stage, it's well worth bypassing using the 651P to deliver much greater depth and detail of audio.
Audio circuitry has been refined with multiple transistors wired in parallel ensuring the lowest possible distortion and noise. A copper shield provides further protection to this extremely sensitive part of the circuitry, limiting the noise that can be injected into the signal. This is especially important with a Moving Coil cartridge because its signal is even quieter and more delicate than Moving Magnet, so it needs even more amplification.
High-spec multi-parallel capacitors achieve exceptional RIAA accuracy - the industry standard for reproducing vinyl recordings. While a highly accurate, subsonic filter removes the common problem of unwanted low-frequencies that are inaudible but can damage subwoofers.
TOTAL POWER OFF
In line with Cambridge Audio's commitment to the environment, a power switch cuts energy consumption to zero when not in use.
Power Consumption (max) Moving Magnet: 5W
Moving Coil: 5W
Gain Moving Magnet @ 1 kHz: 39dB
Moving Coil @ 1 kHz: 55dB
Input Impedance Moving Magnet: 47kOhm
Moving Coil: 100Okm
Input Capacitance Moving Magnet: 220pF
Moving Coil: 220pF
Nominal Output Moving Magnet: 300mV
Moving Coil: 300mV
Sensitivity Moving Magnet: For Nominal Output: 3.35mV
Moving Coil: For Nominal Output: 0.5mV
Overload Moving Magnet: >30dB
Moving Coil: >30dB
Moving Magnet: <0.005%
Moving Coil: <0.002%
Accuracy Moving Magnet: RIAA Curve: < +/-0.3dB
Moving Coil: RIAA Curve: < +/-0.3dB
Moving Magnet: 20Hz-50kHz (subsonic filter off) Moving Coil: 20Hz-50kHz
Signal to Noise Ratio Moving Magnet: >85dB (using Audio Precision RIAA-1 with grounded inputs)
Moving Coil: >72dB (using Audio Precision RIAA-1 with grounded inputs)
Crosstalk Moving Magnet: @ 20 kHz: >83dB
Moving Coil: @ 20 kHz: >69dB
Dimensions 1.8 x 8.5 x 5.2" (46 x 215 x 133 mm) Weight 2 lbs (0.9 kg)
All eligible company warranty and service support is being provided on Cambridge Audio Azur651P AV Preamplifier