BIAMP PM-7400 MKII Pre-Amplifier Stereo

Phono preamplifier with A/D converter and USB output

• Amplification and RIAA equalisation for MM & MC
• Design principle inspired by Dr. Sykora
• Digitalisation of vinyl for recording direct to USB with suitable recording programs
• Automatic recognition, no additional drivers needed
• Runs on Windows®, Mac OS® & Linux operating systems
• SMD circuitry with special low noise components
• Internal metal shielding
• Small size allows installation close to record player
• Gold plated RCA connection sockets
• Outboard power supply included
• Black or White casing

• MM & MC capable  

• True dual mono design  

• Balanced XLR & unbalanced RCA In & Outputs  

• Fully passive RIAA & DECCA equalisation  

• Unique continously variable input impedance loading,  

  matches every cartridge (adjustment even while playing)  

• RCA & XLR In & Out  

• Superior low noise / low distortion  

• Classy & elegant dip switches  

• DC power supply (

• Metal casing protects against vibration and interference  

• Faceplate silver or black 

 Manual/Εγχειρίδιο

Azur 851C Upsampling DAC, CD Player and Digital Pre-amplifier Features

Digital to Analogue Converter featuring S/PDIF and Toslink digital inputs, AES/EBU balanced digital input and USB audio inputs (all 24 bit compatible)
CD playback
Optional digital volume and channel balance control
Balanced XLR and unbalanced RCA analogue audio outputs
USB Audio input allowing streaming of up to 24-bit/192kHz audio from computer
ATF2™ audio up-sampling to 24-bit/384kHz
Twin Analog Devices AD1955 24 bit DACs delivering superior sound-staging and stereo imaging
Selectable digital filters – linear phase, minimum phase, steep
Audiophile grade toroidal transformer delivering ultra-low low noise and distortion
Full metal casework design with thick brushed aluminium front panel and dual layer damped feet, giving enhanced resonance control
RS232 controllable
Eco-friendly Azur Navigator remote control with Cambridge Audio amplifier and iPod dock control
Available in black and silver finishes

The Fono MC is an exceptionally high quality MC phono stage designed to maximise the potential of any MC cartridge. Although specifically to compliment the latest Rega range of  moving coils you will find full adjustability for loading is available via dip switches conveniently placed on the rear panel with two different gain settings located on the back panel making the Fono MC compatible with most low output MC cartridges.

The Fono MC has been designed to be effective, easy to use, and above all, to reproduce music. The Fono MC uses the Linear Systems low noise LSK389 FET in an all discrete input stage where low noise and linearity are vitally important to get the best from an MC cartridge. Because of the high input impedance of FET, the loading effects of the amplifier circuit are minuscule and do not affect the performance of the cartridge.

A MUSE operational amplifier is used in the RIAA equalization amplifier. Polypropylene capacitors have been used in the signal path and in the RIAA equalization circuits. There is selectable input loading for both resistance and capacitance along with two different gain settings located on the back panel making the Fono MC compatible with most low output MC cartridges.

The aesthetic design of the Fono MC was as important as the quality of its electrical capabilities, so it benefits from the same aluminium case as the Rega TTPSU and Fono MM amplifier, giving it a design which offers a familiar feel and moreover brings it in line with its illustrious bigger brothers. The new Fono MC circuit resulted from the design work carried out on the Aria phono amplifier.

The Fono disk stage is designed to amplify the signal from a moving coil cartridge to a level which can feed into a 200mV line level input on a standard hi-fi amplifier.

Specifications

Output impedance = 200Ω
Recommended minimum output load resistance = 5K
Frequency response (50KΩ output load) = 13Hz (-3dB) to 100KHz (-0.3dB)
RIAA accuracy (50KΩ output load) = Better than +/-0.2dB 100Hz to 100KHz
Power requirements = 24V AC at 150mA maximum. Only to be used with Rega PS1.

Input sensitivity (for 200mV output)
4 off = 133uV
4 on = 67uV

Input loading resistance
1 and 2 off = 400Ω
1 on = 100Ω
2 on = 150Ω
1 and 2 on = 70Ω

Input loading capacitance
3 off = 1000pF
3 on = 4300pF
Gain (at 1KHz)
4 off = 63.5dB
4 on = 69.5dB

Maximum input level (at 1KHz)
4 off = 6.7mV
4 on = 3.4mV

Load settings for adjustable MC stages

Impedance -100ohm
Capacitance - 1000pF
Gain setting - High (\'On\' position for Rega phono stages)

Fono MC dip switches settings (factory set at Rega for Rega MC models).

Thorens MM  002 moving-magnet phono preamplifier.

Specifications:

• Mode: Moving Magnet (MM)
• Gain at 1 kHz: 40 dB
• Cartridge matching (input impedance): 47 kOhms + 220 pF fixed
• Frequency response: 10 Hz - 50 kHz (-3 dB)
• RIAA curve accuracy: ±0.3 dB max.
• THD+N: 86 dB
• Crosstalk: ≧40 dB
• Input sensitivity: 3.14 mVrms for -10 dBV output (316 mVrms)
• Max. output voltage: 498 mVrms at 5 mVrms input (1 kHz)
• Output impedance: 47 Ohms
• Input connections: 1 pair of RCA sockets (left/right)
• Output connections: 1 pair of RCA sockets (left/right)
• Power supply: 24 V DC / 630 mA
• Power consumption: 3.3 W / 15 mA
• Weight: 292 g (not including power supply)
• Dimensions (W x H x D): 100 x 45 x 93 mm