Alva Duo
A desktop phono preamplifier that accepts both moving magnet and moving coil cartridges and includes a 6.35mm headphone output. It suits vinyl listeners who want to connect a turntable to a hi-fi system or listen privately on headphones.
- Supports moving magnet and moving coil cartridges
- Built-in 6.35mm headphone output
- Subsonic filter for low-frequency rumble
- Switch-mode power supply to reduce hum
- Auto power-down after 20 minutes of inactivity
- Gain: MM 39dB, MC 60dB at 1kHz
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Selja svonaLýsing
Alva Duo is a phono stage that boosts and equalises the signal from a turntable cartridge to a level a hi-fi system can use. It handles both moving magnet and moving coil cartridges, with separate gain and input settings for each, so it can work with a wide range of turntables.
A built-in headphone amplifier with a 6.35mm output allows private listening without a separate amplifier. A subsonic filter removes low-frequency rumble, which is useful with worn records. The circuit uses a surface-mounted board, and a switch-mode power supply operates outside the audible range to limit hum and interference.
The unit powers itself down after 20 minutes of inactivity, and standby consumption is under half a watt. It works with mains voltages worldwide. The package includes a mains lead, a user manual and a safety guide.
Myndband
Tækniupplýsingar
- Framleiðandi
- Cambridge Audio
- Líkan
- Alva Duo
- Flokkur
- Hi-Fi og heimilishljóð › Annar Hi-Fi búnaður
Audio
- Cartridge support
- Moving Magnet | Moving Coil
- Gain @ 1kHz
- MM: 39dB | MC: 60dB
- Nominal output
- 300mV
- Sensitivity for nominal output
- MM: 3.35mV | MC: 305uV
- Equivalent input noise (A-weighted)
- MM: ~0.09uV | MC: ~0.08uV
- RIAA curve accuracy
- +/- 0.3dB 30Hz-20kHz
- Signal to noise ratio (grounded inputs, ref. 1V output, 20Hz-20kHz BW)
- MM: >90dB | MC: >70dB
- THD+N 1kHz (20-20kHz BW)
- MM: <0.0025% | MC: <0.20%
- Overload margin
- >30dB
- Crosstalk @ 10kHz
- MM: >85dB | MC: 75dB
Inputs
- Input impedance
- MM: 47k Ohms | MC: 100 Ohms
- Input capacitance
- 100pF
Outputs
- Headphone output
- 6.35mm
Features
- Subsonic filter
- Yes
- Auto power-down
- After 20 minutes of inactivity
Power
- Max power consumption
- 10W
- Standby power consumption
- Less than 0.5W
Physical
- Dimensions (H x W x D)
- 48 x 215 x 159 mm (1.9 x 8.5 x 6.2")
- Weight
- 0.95kg (2.1lbs)
- Colour
- Grey
In the box
- Contents
- Alva Duo Moving Coil & Moving Magnet Phono Preamp, User Manual, Safety Guide, Mains Lead