Περιγραφή
The A/D Phono Box S has also other significant features: It allows to connect a turntable, tape deck or other source to devices which has no line input. Today some AVRs have only digital inputs and connecting of the turntable or tape deck seems to be impossible. The answer is A/D Phono Box S, which allows the connection of analogue devices via S/PDIF optical output. Optical output is only available, when USB connection is active.
A front-sided input selector allows to select desired inputs: Phono or Line. Signal from selected input is present on analogue output. This function allows to connect A/D Phono Box S permanently in an HiFi system, use it as standard phono preamplifier and in case of need you can convert your records to digital data, stored in your computer. Record level adjustment is extremely helpful, because signal source scans significantly vary in level of their output voltage. Such big differences in voltage level can easily overload input of an A/D converter what is hearable as a distortion.
On the other hand, if the A/D converter is not fed with proper level of the signal, the sound will loose resolution. This is the reason why level of the signal on ADC input must be set carefully. Due to its outstanding audio quality and valuable features, A/D Phono Box S is the perfect partner for recording of analogue sources.
.• MM & MC capable
• Linear RIAA equalisation
• Phono stage technology by Dr. Sykora
• Line level input switchable
• Recording level control
• USB recording output to computer (PC & Mac)
• Digital optic output (Toslink), works while USB is connected
• Ultra low noise & low distortion levels
• SMD circuitry
• Metal casing protects against vibration and interference
Technical specifications |
Pro-Ject A/D Phono Box S |
| Input impedance | MC 100 ohms / MM 47k ohms |
| Load capacity | 120pF |
| Gain | MM or high output MC: 40 dB |
| low output MC: 60 dB & Line: 11dB | |
| Signal to noise ratio MM /MC | 94dB / 75dB (A weighted) |
| THD | MM / MC < 0,01% / < 0,05% |
| RIAA accuracy | within 0,5dB/20Hz – 20kHz |
| Analogue inputs | RCA (Phono) / 3,5mm jack (Line) |
| Analogue output voltage | 9,5V (RCA) |
| A/D converter | 16-Bit Delta Sigma |
| Sampling-frequencies | 32, 44,1 & 48kHz |
| USB interface | USB1.1, Mini B (cable included) |
| Suitable for | Windows XP®, Vista®, 7® 8®, Mac & Linux |
| Power supply | 18V/500mA DC; 220 – 240V, 50Hz |
| Power consumption | 100mA DC < 1 watt standby |
| Dimensions W x H x D (D with sockets) | 103 x 36 x 104 (115)mm |
| Weight | 580g without power supply |







