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The signal processing of cartridges is one of the most delicate jobs in amplification. All the more so because it isn’t done merely by boosting a few hundred microvolts to a few hundred millivolts. In fact, at this thousandfold amplification (60 dB) the signal must be processed as cleanly and noise-free as possible. The extremely low signal level and the frequency-dependent amplification which arises from the RIAA equalisation curve applied in the cutting of LPs make the highest demands of the circuit topology and technical realisation of a phono preamplifier.

Our award-winning QUASAR phono stage, with its discrete conception and wide range of features, meets the requirements of even top-class turntable/cartridge combinations without being “unreasonable” in the usual high-end fashion.

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The QUASAR is built in dual-mono configuration from the power supply upwards. There are two separate amplifier stages for MM and MC cartridges, both being fed from their own regulated power supply arrangement. Optimum adjustments to the MC cartridge in use can be applied for sensitivity and load by various settings of the jumpers on the PCB. The two separate outputs with different output levels make it possible to fine match for preamps or recorders.

The output stage has huge headroom at extremely low noise levels and, due to its low output impedance and high current delivery, can drive long interconnect cables without any sonic degradation.

The enhanced power supply of the QUASAR, the Q-PSU that also can be used as power supply upgrade with other components, is based around a 50 VA toroidal transformer with low-density magnetic field and very little dispersion. This power, together with a fine voltage regulation system, can feed the circuit with the kind of super-clean current usually delivered only by battery-based supplies, even with extreme dynamic swings.

FEATURES

– separated MM and MC input stages

– adjustable MC gain and impedance

– discrete bipolar transistor architecture

– separated power supply (see Q-PSU)



SPECIFICATIONS

Inputs: 1x MM / 1x MC

Outputs: 1x 0dBm (High Out)/ 1x -10 dBm (Low Out)

Frequency response: 3 Hz – 150kHz

Input sensitivity (MC): 100 / 330 / 600 µV

Input impedance (MC): 100 / 470 / 1000 Ω

Input sensitivity (MM): 2.5 mV

Input impedance (MM): 47 kΩ

Gain: 50 dB (MM) / 62 – 78 dB (MC)

RIAA accuracy: +/- 0.5 dB (20 Hz – 20 kHz)

Power supply options: Q-PSU (standard) / Obelisk PX / Thesis Pi

Dimensions (W x H x D): 9.5 x 7.5 x 22 cm
945,00 € 945.0 EUR
Preamplificatore Phono MC

Nuovo pre phono Rega Fono MC, completamente regolabile, utilizza un circuito basato sulla pluri-premiata Rega Aria.

Regolazioni per l'abbinamento col fonorivelatore disponibili dal pannello posteriore con due settaggi del guadagno in modo da poter essere utilizzato con la maggior parte delle testine MC a bassa uscita.



CARATTERISTICHE:

REGA FONO MC PRE PHONO COMPLETAMENTE REGOLABILE
Sensibilità d'ingresso (per uscita 200mV)
4 off = 133uV
4 su = 67uV
Resistenza di carico di ingresso
1 e 2 spenti = 400Ω
1 acceso = 100Ω
2 acceso = 150Ω
1 e 2 su = 70Ω
Capacità di carico in ingresso
3 spento = 1000pF
3 su = 4300pF
Guadagno (a 1KHz)
4 spento = 63,5dB
4 su = 69,5dB
Livello massimo di ingresso (a 1KHz)
4 spento = 6.7mV
4 su = 3,4mV

Impedenza di uscita = 200Ω
Resistenza di carico minima consigliata = 5K
Frequenza di risposta (carico di uscita 50KΩ) = 13Hz (-3dB) a 100KHz (-0,3dB)
Precisione RIAA (carico di uscita 50KΩ) = Meglio di +/- 0,2dB da 100Hz a 100KHz
Requisiti di alimentazione = 24V AC a 150mA massimo. Solo per essere utilizzato con Rega PS1

359,00 € 359.0 EUR
ULTIMA VERSIONE , REALEASE FONO MM MK III



Rega Fono MM Disk stage Preamplificatore nero Phono MM è uno stadio phono per fonorivelatori MM progettato per essere efficace facile da usare e soprattutto riprodurre musica. La nuova scheda interna a montaggio superficiale è stata ottimizzata per funzionare anche con l'ultima generazione dei giradischi Rega serie RP.Caratteristiche tecnicheSensibilità d’ingresso = 3mV per uscite da 200mV / Carico di ingresso = 47KW in parallelo con 100pFMassimo livello d’ingresso = 100mVMinima impedenza di carico d’uscita = 36.5dBPotenza richiesta = 24v AC @ 110mA (Rega PS1)Risposta in frequenza (carico 50KW ) = 17Hz (-3dB) a 100KHz (-0.2dB)Precisione del RIAA (carico 50KW) = +/-0.2dB 100Hz a 100KHz


SIAMO RIVENDITORI UFFICIALI ITALIA
290,00 € 290.0 EUR
Pre-amplificatore phono MM / MC commutabile -elevata precisione e disturbo ridotto - chassis inalluminio e acciaio - filtro subsonico per eliminaredisturbi nelle basse frequenze causate dalleimperfezioni del vinile - controllo bilanciamentoper le testine Whether you’re dusting off your record collection or embracing analogue through the vinyl revival, there’s a unique experience to be had from the moment you drop the needle on your favourite album. To preserve the unique warmth of the vinyl sound, the Duo phono preamplifier has been carefully designed with a state-of-the-art switch mode power supply and a new surface mounted circuit board layout to reduce unwanted noise. WHY CHOOSE A DEDICATED PHONO PREAMPLIFIER? Due to the low-level signals created by a turntable, not all hi-fi amplifiers will let you connect directly to a record player. The phono preamplifier boosts this signal to something a power amplifier can work with. The challenge at this stage though is that noise can easily be added. This is why we’ve designed the Duo around exceptional components that deliver the warm and detailed sound that’s synonymous with vinyl, all without distorting the signal from your moving magnet cartridge turntable. The switch mode power supply improves performance by switching outside of audible frequency to drastically reduce hum and new circuit board layout uses surface-mount components to reduce noise. VINYL. JUST FOR YOU. Enjoy the warmth of vinyl privately thanks to Duo’s integrated headphone output. Uniquely, we integrated a 6.35mm headphone jack directly into the phono stage, so you can still enjoy your records when there’s no option to play out loud. The integrated headphone output also means no need to turn on your amplifier just to power your headphones, resulting in a more eco-friendly listening experience. ATTENTION TO DETAIL If some records in your collection are a little worse for wear, the subsonic filter will help to eliminate low frequency rumbles that can be caused by imperfections within your vinyl. Combine this with the balance control for handling potential cartridge imbalances in your record player (that can cause a difference between the left and right channels) and the result is a detailed experience with accurate soundstage. ECO FRIENDLY The Duo phono preamplifier is green at heart with less than half a watt standby power consumption and auto power down feature if the unit isn’t used after a 20 minute period. This in turn gives the unit the same worldwide voltage for compatibility wherever you are in the world



MAX POWER CONSUMPTION 10W 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-50Hz SIGNAL TO NOISE RATIO GROUNDED INPUTS REF. 1V OUTPUT (20HZ-20KHZ BW) MM: >90dB | MC: >70dB THD+N 1KHZ (20-20KHZ BW) MM: 85dB | MC: 75dB 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)
260,00 € 260.0 EUR
Pre-amplificatore phono MM di alta qualità -
elevata precisione e disturbo ridotto - chassis in
alluminio e acciaio - filtro subsonico per
eliminare disturbi nelle basse frequenze causate
dalle imperfezioni del vinile - controllo
bilanciamento per le testine



MAX POWER CONSUMPTION

10W



GAIN @ 1KHZ

39dB



NOMINAL OUTPUT

300mV



SENSITIVITY FOR NOMINAL OUTPUT

3.35mV



EQUIVALENT INPUT NOISE (A-WEIGHTED)

~0.09uV



RIAA CURVE ACCURACY

+/- 0.65dB 30Hz-20kHz



SIGNAL TO NOISE RATIO GROUNDED INPUTS REF. 1V OUTPUT (20HZ-20KHZ BW)

>90dB



THD+N 1KHZ (20-20KHZ BW)

<0.0025%



INPUT IMPEDANCE

47k Ohm



INPUT CAPACITANCE

100pF



OVERLOAD MARGIN

>30dB



CROSSTALK @10KHZ

>85dB



DIMENSIONS (H X W X D)

48x176x132 (1.9x6.9x5.2”)



WEIGHT

0.68kg/1.5lbs

160,00 € 160.0 EUR
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