Offering the ultimate in sound transparency and depth, the Forssell Technologies MADC-4 opens up a new dimension in the realm of AD converters.

Housed in a 1U rack mount enclosure, the MADC-4 is designed for the most demanding applications where capturing musical performances with accuracy is required.

Sample rates from 44.1k to 192k Fs are selected with a single front panel switch, and LED indicators display the selected sample rate.

Digital "clipping" is indicated with a single front panel LED that latches on until the "reset" switch is pressed.

Analog circuitry features an all Class A discrete JFET with no IC opamps used in the signal path.

The analog inputs use high-quality XLR connectors.

The digital outputs provided are AES3 (XLR),SPDIF (RCA), and Word Clock output (BNC) are provided. An additional Word Clock output is available as an option. The MADC-2 digital output word length is fixed at 24 bits.

Sample Rates available:
44.1k, 48k, 88.2k, 96k, 176.4k and 192k

Level Calibration:
0 dBu Input = -10 dBFs to -20 dBFs in 6 steps (jumpers)

Analog Input Impedance:
Greater than 10k ohm balanced
Maximum analog input level is a function level calibration (no analog clipping). AES3 (XLR) digital output impedance = 110 ohm balanced floating

SPDIF (RCA) digital output impedance:
75 ohm balanced floating

WC output:
+5V (TTL) unterminated. Requires 75 ohm load termination at load.

Quantization Noise:
-115 dBFs

Dynamic Range:
-119 dB A-weighted

ADC Latency (Input to Output group delay):
Fs Time
44.1k: 1.6 ms
48k: 1.48 ms
88.2k: 967 us
96k: 895 us
176k: 660 us
192k: 605 us