FOSTEX VC-8 8CHANNEL ANALOG-ADAT CONVERTER

The 8 channel Fostex VC-8 Analog/ADAT converter offers users of Fostex Digital Multitracks
and PC soundcard users the flexibility of adding more analog inputs and outputs. This is
particularly useful in a ?live? recording application where the number of simultaneous recording
tracks (from analog sources) can be maximized. Inputs and outputs are via RCA pin connectors
and utilize excellent quality 20-bit A/D D/A conversion with 32-48kHz digital performance available
enabling seamless integration with digital equipment. Interfacing to an analog mixer is made
simple using the bus selector which can operate in 2, 4 and 8-bus modes.

Features:
Affordable ADAT Optical / Analogue converter
20-bit AD/DA performance
S/P DIF / Analogue conversion
Selectable clock - Internal (44.1kHz), Optical, Word (32-48kHz)
enables seamless integration with digital equipment
Input Mode select (2/4/8 buss) for easy combination with any analogue mixer
Word In for sync
Utilizes high quality 20bit AD/DA converters

SUGGESTED APPLICATIONS:
Add analogue I/Os to digital recorders such as D824, D1624, D2424 to maximize
the number of simultaneous recording tracks
Add 8 high quality analog inputs and outputs to a PC sound card equipped with
ADAT optical connectionGreat all-round capability
 
SPECIFICATION:
INPUT / OUTPUT
Analog Input (1-8) RCA pin jack
Input Level -10dBV
Input Impedance >20k ohm
Analog Output (1-8) RCA pin jack
Output Level -10dBV
Load Impedance >10k ohm
Digital Data In/Out Optical (x 2)
Format (Switched to 1 or 2.) 1. IEC60958 (S/P DIF)
2. Alesis Proprietary Multi Channel Optical Interface
Word Input BNC connector, TTL level
Input Impedance 75 ohm (terminate on/off)
PERFORMANCE
Sampling Frequency INT mode : 44.1kHz, OPTICAL/WORD mode : 32 - 48kHz
AD 20 bit 64 times over sampling modulation
DA 20 bit 128times over sampling modulation
Total Harmonic distortion 0.008%(@ 1kHz, Typical)
Dynamic Range 96dB (Typical)
PHYSICAL
Dimensions 220 (w) x 43 (d) x 180 (h) mm
Weight 1.0kg (Excluding accessories)

• Stereo D/A Converter
• Supports up to 24-Bit/96 kHz Resolution
• Dante-Enabled Ethernet Input
• Balanced Analog XLR Outputs
• Adjustable Output Level
• 3.5mm Stereo Headphone Output
• 14-Gauge Steel Enclosure
• Sync and Power Indicators

The Rosetta 200, Apogees successor to the PSX-100 and Rosetta AD namesake,
delivers the quality of the popular Rosetta 800, in a 2-channel AD/DA solution. Like
the Rosetta 800, the 200 features premium Apogee A/D and D/A conversion, 192k
sampling rates (standard), optional Pro Tools HD, Mix and FireWire expansion cards
and core Apogee technologies such as UV22HR, and SoftLimit. And while the
Rosetta 200 shares much of its feature set with its cousin, it throws in some irresistible
extras such as the new, CODA, Audio Finishing Module, full channel metering, and
MIDI and S/PDIF input and output. Flexibility and features galore make the Rosetta 200
an outstanding option for professional and project studios, mastering engineers, and
audio archivists.

Features:
Channels of premium 24-bit AD/DA conversion
Sample rates up to 192kHz with Apogee's "Intelliclock"
2 channels of AES, S/PDIF (coax & optical), and ADAT/SMUX I/O MIDI I/O
Optional FireWire expansion card for compatibility with OS X, and
Windows XP (X-FireWire card)
Optional expansion card for direct connection to Pro Tools HD & Mix systems
(X-HD card, X-Digi-Mix card)
“Soft Limit" for maximum digital level without overs
CODA: The Aptomizer Level Normalizer, Sample Rate Conversion (SRC), and
Apogees UV22HR for superior dither to 16-bit
Full channel metering

DB25 to 8 x XLR Female. This cable allows the Apogee AP-8AD Yamaha A/D card to accept eight channels
of analog input. Also suitable for use with the AD-16 (quantity 2 required for 16 channels). The wiring is the
same as the analog input connector on a Tascam machine such as the DA-88. Alternatives are available from
Tascam, Hosa and others.

Input MADI: 1 x BNC, 1 x optical
Output MADI: 1 x BNC, 1 x optical
Input ADAT optical: 8 x TOSLINK, 24-Bit, Bitclock PLL
Output ADAT optical: 8 x TOSLINK, 24-Bit
Input word clock: BNC, Signal Adaptation Circuit (functional from 1.2 Vpp input signal), switchable termination
Output word clock: BNC, low-impedance driver stage, 4 Vpp into 75 Ohms, short-circuit-proof
MIDI input and output: via two 5-pin DIN jacks
Sync sources: MADI, ADAT optical, word clock, internal
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: MADI: 32 kHz - 96 kHz, word clock: 27 kHz-105 kHz, ADAT: 33 kHz - 57 kHz
Jitter: Internal clock Jitter suppression on external clock: circa 30 dB (2.4 kHz)
Jitter sensitivity: all PLLs operate even at 100 ns Jitter without problems
Power supply: internal switching mode ps, 100 V-240 V AC, 50-60 Hz, 10 Watts
Dimensions: 483 x 44 x 200 mm

The Tascam LA-40 MKIII has been primarily designed to provide matching capabilities between professional equipment and semi-professional or consumer equipment. It consists of four RCA inputs and outputs (–10 dBV, unbalanced) as well as four XLR inputs and outputs (+4 dBu/–20 dBu, balanced) which enable the user to connect for instance four tracks of a multitrack recorder (ins and outs) to a balanced mixer ensuring optimum level and impedance matching. Also, a switch matrix allows channels to be linked, utilizing the converter as a distribution amplifier for splitting signals to multiple recorders, or for multizone sound routing applications.

Switches on the bottom panel allow to select a nominal level of +4 dBu or –20 dBu for each channel and ±12 dB trim pots on the front panel make perfect level matching easy. LEDs on the front panel indicate signal presence for each channel. The LA-40 MKIII has also ground lift switches for each channel and a combined master switch to avoid ground loops.
Main Features

    * 4 channels with unbalanced RCA inputs and balanced XLR outputs
    * 4 channels with balanced XLR inputs and unbalanced RCA outputs
    * XLR nominal level selectable between +4 dBu and –20 dBu
    * Trim pots for each channel on front panel (±12 dB)
    * Signal LED for each channel

    * Ground lift switches for each channel and master switch
    * Distribution amplifier functionality: One mono input signal can be routed to all four output channels, or one stereo input signal can be routed to two channels each (RCA to XLR and XLR to RCA)
    * Internal power supply, no AC adapter needed
    * 1 U rack-mountable chassis

Specifications
Inputs and outputs (unbalanced to balanced)
Inputs         4 RCA jacks (unbalanced)
  Input impedance         23 kOhm (when all INPUT LINK switches are OFF)
5.7 kOhm (when all INPUT LINK switches are ON)
  Nominal input level         –10 dBV, ±1 dB
  Maximum input level         +4.8 dBV
  Indicator detection level         –36 dBV or more (OUTPUT LEVEL switch set to +4 dB or –20 dB)
Outputs         4 XLR-type connectors (balanced, Pin 1 = ground, Pin 2 = hot, Pin 3 = cold)
  Output impedance         94 Ohm
  Nominal load impedance         10 kOhm
  Minimum load impedance         600 Ohm
  Nominal output level         +4 dBu, ±1 dB (OUTPUT LEVEL switch set to +4 dB)
–20 dBu, ±1 dB (OUTPUT LEVEL switch set to –20 dB)
  Maximum output level         +23 dBu
Inputs and Outputs (balanced to unbalanced)
Inputs         4 XLR-type connectors (balanced, Pin 1 = ground, Pin 2 = hot, Pin 3 = cold)
  Input impedance         54 kOhm (when all INPUT LINK switches are OFF)
13.5 kOhm (when all INPUT LINK switches are ON)
  Nominal input level         +4 dBu, ±1 dB (INPUT LEVEL switch set to +4 dB)
–20 dBu, ±1 dB (INPUT LEVEL switch set to –20 dB)
  Maximum input level         +30 dBu (INPUT LEVEL switch set to +4 dB)
+8 dBu (INPUT LEVEL switch set to –20 dB)
  Indicator detection level         –22 dBV or more (INPUT LEVEL switch set to +4 dB)
–46 dBV or more (INPUT LEVEL switch set to –20 dB)
Outputs         4 RCA jacks (unbalanced)
  Output impedance         200 Ohm
  Nominal load impedance         10 kOhm
  Minimum load impedance         1 kOhm
  Nominal output level         –10 dBV, ±1 dB
  Maximum output level         +18 dBV
Audio performance
TRIM range         ±12 dB
S/N ratio (at nominal levels)         90 dB(A) (20 kHz LPF)
87 dB(A) (20 Hz HPF and 20 kHz LPF)
Total harmonic distortion
(1 kHz, at nominal levels)         0.005 % or less
Frequency response (at nominal levels)         20 Hz – 100 kHz, ±3 dB
Crosstalk
(1 kHz, nominal levels, 600 Ohm load)         –90 dB
Other specifications
Power requirements         100–240 V AC, 50/60 Hz
Power consumption         6 W
Dimensions (W x H x D)         483 mm x 44 mm x 280 mm
Weight         3 kg