P.S. In fatto di CONVERTITORI per un GRANDE SUONO vi rimando al pargoletto di casa RME
"ADI-8 DD: 16-Channel 24 Bit/96 kHz Dual Universal Format Converter" recentemente confrontato sul n.39 di CUBASE MAGAZINE con il COLOSSO DELLA APOGEE (che in fatto di convertitori ha sempre detenuto lo scettro in assoluto) per farmi capire , si tratta dello stesso prodotto che usano su ProTools ; dallo scontro non sono emersi VINCITORI.Tra le altre cose ,l'ADI-8 DD risulta imbattibile anche per il prezzo che è circa un terzo del prodotto della concorrenza.
Ecco le caratteristiche del prodotto :
The ADI-8 DD is the youngest member of RME's world-wide successful ADI-8 series, and it commands any other format or sample rate converter in the price-range up to $5.000 to their places, with a single strike on the timps. Such a statement demands its proof - here we go!The ADI-8 DD consists of two (!) digital format converters with each up to 16 channels. It offers 34 different conversion modes, all with 24 bit resolution. Besides the bi-directional conversion between all formats (ADAT/TDIF, ADAT/AES or TDIF/AES), numerous additional modes are available. A simplified list looks like this:
Left part
8-channel AES (4 x stereo, XLR) to ADAT optical || TDIF converter (96 kHz)
8-channel AES to 2 x ADAT || 2 x TDIF splitter (48 kHz)
2-channel AES to 8 channel TDIF || ADAT splitter (96 kHz)
8-channel ADAT / TDIF to 2 x ADAT || 2 x TDIF splitter (48 kHz)
16-channel ADAT / TDIF to ADAT || TDIF converter (48 kHz)
8-channel ADAT / TDIF to ADAT || TDIF converter (96 kHz)
Right part
8-channel TDIF / ADAT to ADAT || AES (4 x stereo, XLR) converter (96 kHz)
16-channel TDIF / ADAT to ADAT (|| AES) converter (48 kHz)
8-channel AES to AES Sample Rate Converter (96 kHz)
2-channel AES to 8-channel AES splitter (96 kHz)
4-channel AES Double Wire to AES Single Wire converter (96 kHz)
4-channel AES Single Wire to AES Double Wire converter (96 kHz)
8-channel ADAT / TDIF to ADAT || TDIF Sample Rate Converter (96 kHz)
* ADAT || TDIF means that the output signal is present in parallel, i.e. at the same time on the ADAT and TDIF outputs. ADAT / TDIF means that the input can be either ADAT or TDIF.
Complicated? Not at all. The ADI-8 DD is both easy to understand and easy to operate. More on the plain and simple basic structure of the DD can be found here.
Because the ADI-8 DD is a dual converter, there are two modes available at the same time from the modes mentioned above - with few exceptions. Professionals are really thrilled by these features: the ADI-8 DD understands Sample Split, S/MUX, Double Wire and Double Line. It is thus compatible to all known methods for raising the sample rate by sample distribution, on all supported platforms. Also multiple units can be stacked and operated sample-aligned, using word clock.
Both converters work both completely independent and intelligently coupled. The actual states of incoming and outgoing signals and ongoing operations within the unit are displayed with LEDs of different colours in an easily overseeable way. The 8-channel Sample Rate Converter in Hi-End 24 bit/96 kHz quality is only available in the left or right part of the device. It allows for a wide range of applications. When the internal clock is used, the SRC works as a perfect jitter-killer. And thanks to the SRC's clock-decoupling non-synchronisable items like CD-players and DAT recorders can be used together as if they were synchronisable.
Devices from RME have an outstanding reputation. To maintain this, we keep on looking for details that others miss. A present example is the ADI-8 DD's SyncAlign® technology. As soon as more than one AES or SPDIF input are used, there is usually the chance of an accidental error of ± 1 sample misalignment between the stereo inputs. SyncAlign prevents this error and guarantees sample synchronicity between all 4 x 2 channels.
All of the ADI-8 DD's I/Os support 96kHz/24bit. As ADAT® optical and TDIF are usually restricted to 48kHz, in DS mode (Double Speed) two channels are being used for the transmission of one channel's data. The Sample Split algorithm used is also implemented in the Hammerfall and Hammerfall Light. Thus the ADI-8 DD also represents an ideal AES/EBU frontend for the Hammerfall series.
The compact device with 19" width and 1 HU has numerous exceptional features like Intelligent Clock Control (ICC) and storing of all settings. Other highlights are:
ADAT® optical inputs, 24 bit, using RME's unsurpassed bitclock PLL for sample accurate lock
TDIF-1 interface, 24 bit, SD-PLL, Emphasis support, DA-88 compatible
Sample rate conversion 96 kHz/24 bit switchable for the AES/EBU inputs
Copy Mode allows for copying data to an output of the same format (ADAT to ADAT etc.)
Clock decoupling (re-synchronisation) per SRC
Active jitter reduction per Serial Double PLL and SRC
Digital Patchbay, allows for copying, duplicating and distributing of the digital input signals
SyncCheck, unequalled technology for checking of clock synchronicity
SPDIF mode switchable for the second ADAT optical output
Compare the ADI-8 DD with other stereo or multichannel converters and you will agree: the ADI-8 DD shows an unsurpassed flexibility together with a sensational price point! It is the long-awaited link in the semi-professional and professional area, from project studio to broadcast applications
Technical Specifications and Features
Input AES/EBU: 4 x XLR, electrically isolated, highly sensitive input stage (< 0.3 Vss), SPDIF compatible
Output AES/EBU: 4 x XLR, transformer balanced, 5 Vss
Input ADAT® optical: 2 x TOSLINK, 24 bit, Bitclock PLL
Output ADAT® optical: 2 x TOSLINK, 24 bit
Input/Output TDIF: 2 x D-type 25 pin, 24 bit, SD-PLL
Input word clock: BNC, Signal Adaptation Circuit (functional from 1.2 Vss input signal), SD-PLL
Output word clock: BNC, low-impedance driver stage, 4 Vss into 75 Ohms, short-circuit-proof
Sync sources: ADAT optical input, AES/EBU input, TDIF input, word clock input
Varipitch: by input signal or word clock
Sample rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, variable (Sync/word clock)
Sample rate range: AES, word clock: 27 kHz-105 kHz, ADAT/TDIF 33 kHz - 57 kHz
Jitter: Internal clock < 1 ns, word clock In < 3 ns, ADAT In < 2 ns, TDIF In < 3 ns
Jitter sensitivity: all PLLs operate even at 40 ns Jitter without problems
Jitter reduction: SD-PLL > 50%, SRC > 99%
SRC dynamic ratio: 128 dB
SRC THD+N: < -117 dB (< 0.00014 %)
Sample rate ratio: Max. 3:1 / 1:3
Power supply: internal switching mode ps, 100 V-240 V AC, 50-60 Hz, 10 Watts
Dimensions: 483 x 44 x 200 mm
Warranty: 2 years
Suggested Retail Price (MSRP) excl. VAT: 998 Euro
B.lavoro , DAMIAFIX