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The A-70DA, which weighs more than 17 kilos, is not just about mass, it is above all about class: Separate mains transformers for pre-amplifier and amplifier sections, above all when they are individually cast and shielded as here, provide not only weight, but also working conditions with unsurpassed low interference for the audio circuitry. The doubled A-70DA is worth it because its pre-amplifier has a completely symmetrical layout. An individual, particularly low-loss loudspeaker volume control was even integrated for the symmetrical XLR input. Via its digital inputs the A-70DA is equipped for all modern music formats. In this respect, the very highest resolutions, such as Quad-DSD (11.2 MHz) and PCM with 384 kHz and 32 bit, are supported via USB. The high-resolution counterparts in the analog world are exclusive MC pick-ups which, thanks to the a switchable phono stage, supply this top model just as precisely as the widespread MM systems. With its doubled chassis, the full-metal loudspeaker knob and the thick aluminium front and side panels, the casing guarantees a suitably high-class performance.
Connectez votre ordinateur directement à l′entrée asynchrone USB. Le transformateur D/A ESS ES9016S intégré traite les signaux lui-même avec la plus haute résolution possible, comme Quad-DSD avec jusqu′à 11,2 MHz et les fichiers PCM dans le format WAV ou FLAC avec jusqu′à 384 kHz et 32 bit.
The three-part chassis effectively shields the power supply, pre-amplifiers and power amplifiers and avoids mutual interference. A fully symmetrical pre-amplifier circuit and symmetrical Neutrik XLR ports achieve the best possible signal-to-noise ratio. XLR connections are standard in the area of studio engineering and much less prone to any kind of interference.
The highly-efficient MOSFET Class D amplifier supplies 90 watts per channel and facilitates extremely dynamic, detailed and precise sound reproduction.
Connect your record player very easily to the phono input using an MM or MC system and enjoy your vinyl collection in the best quality.
Specificatii | 90 W + 90 W (20 Hz-20 kHz, THD 0.5 %, 4 ohms) 65 W + 65 W (20 Hz-20 kHz, THD 0.5 %, 8 ohms) THD: 0.02 % (Rated Output -3 dB, 8 ohms, 1 kHz) Guaranteed Speaker Impedance: 4-16 ohms (A or B), 8-32 ohms (A+B), 4-16 ohms (Bi-Wiring) Frequency Response (Measured with DIRECT button switched on): SACD/CD, NETWORK, LINE1, LINE2 5 Hz-50 kHz, ±3 dB RIAA Deviation: PHONO MM 20 Hz-20 kHz, ±0.5 dB, PHONO MC 20 Hz-20 kHz, ±0.5 dB Signal-to-Noise Ratio (IHF, A Network, Short Circuited) SACD/CD: 101 dB Phono: 89 dB (MM: 5 mV input)/74 dB (MC: 0.5 mV input) Power Amp Direct: 110 dB Channel Separation SACD/CD: 90 dB (100 Hz), 84 dB (1 kHz), 75 dB (10 kHz) Power Amp Direct: 95 dB (100 Hz), 95 dB (1 kHz), 80 dB (10 kHz) Pure Audio Grade High Efficiency Power ›› MOSFET Amplifier (Class D Amplifier) Fully-Balanced Preamplifier Circuitry Separated Construction for Preamp and Power Amp Source Direct Mode Highly Acclaimed ESS SABRE32 Ultra DAC 384 kHz/32-bit USB-DAC for Asynchronous Transfer Shielded Twin Transformer for Preamp and Power Amp Trans-Stabilizer Speaker A, B, A+B Selector Machine-Cut Aluminium Rotary Knob Aluminium Front/Side Panels Auto Power Down High-Grade AC Power Cord Rigid Under Base Aluminium Hair Line Finish Remote Controller Dimensions (W x H x D): 435 x 141.5 x 361.5 mm Weight: 17.2 kg |
Tip Echipament | Solid State |
- Pentru performante optime este necesara pozitionarea boxelor la o distanta de minim 30-40cm de peretele din spate pentru boxele cu bass-reflex in spate, pentru cele cu bass-reflex in fata, recomandam pozitionarea la o distanta de 10-20cm fata de peretele din spate.
- Boxele vor ajunge sa functioneze in parametrii recomandati de producator, dupa minim 50 de ore (ideal 100 ore) de functionare la volum mediu. In aceasta perioada de timp, de “rodaj a boxelor”, sunetul va fi la inceput ceva mai artificial, bass-ul nu va fi inca controlat, inaltele rigide iar vocile usor retinute, pe masura ce boxele vor functiona, veti remarca cum bas-ul devine mai controlat, mai prezent si mai voluminos, vocile si sunetele medii devin naturale si mai echilibrate, iar inaltele devin rafinate si detaliate. Exista boxe care necesita un „rodaj” mai amplu de minim 300 de ore mai ales in cazul celor care au difuzoare de kevlar, carbon sau alte materiale de acest tip. Boxele care se „rodeaza” cel mai repede sunt cele care au difuzoare de celuloza.
- Pentru performante optime este necesar „rodarea” echipamentului, In functie de complexitatea componentelor din aparatul dumneavoastra acesta poate dura intre 30-200 ore.
- Rodajul se face la volum minim, fiind astfel suficient faptul ca acesta este alimentat corect conform manualului de utilizare la 220-230 Volti si trece semnal audio sau video dupa caz prin el.
- Echipamentul supus „rodajului” va ajunge sa functioneze in parametrii recomandati de producator, dupa perioada mai sus mentionata. In aceasta perioada de timp, de “rodaj”, sunetul va fi la inceput ceva mai artificial, bass-ul nu va fi inca controlat, inaltele rigide iar vocile usor retinute, pe masura ce echipamentul va functiona, veti remarca cum bas-ul devine mai controlat, mai prezent si mai voluminos, vocile si sunetele medii devin naturale si mai echilibrate, iar inaltele devin rafinate si detaliate.
- Pentru performante optime este necesara „rodarea” cablurilor, In functie de complexitatea conductorului folosit, cat si geometriei acestuia, „rodajul” poate dura intre 30-100 ore.
- Rodajul se face la volum minim, fiind astfel suficient faptul ca va trece semnal audio sau video dupa caz prin el.
- Cablul supus „rodajului” va ajunge sa functioneze in parametrii recomandati de producator, dupa perioada mai sus mentionata. In aceasta perioada de timp, de “rodaj”, sunetul va fi la inceput ceva mai artificial, pe masura ce cablul va functiona, veti remarca cum bas-ul devine mai controlat, mai prezent si mai voluminos, vocile si sunetele medii devin naturale si mai echilibrate, iar inaltele devin rafinate si detaliate.
Pentru detalii privind aceste aspecte de rodaj si nu numai, va rugam sa ne consultati!