BSS Audio TCS-666 Negative Time Corrector

The revolutionary new TCS-666 is a two-channel dual-tap or single-channel quad-tap digital negative delay line designed for realigning misaligned speaker systems or aligning loudspeaker systems in "Pre-Source Towers" (see diagrams, below). It can also be used as a sonically transparent stereo negative time corrector for mastering or live performance applications in which the user would like to speed up program material before it actually exists. The unit features a 105dB usable dynamic range; time and distance displays in Feet, Meters, Inches, and Milliseconds; minimum delay steps of –10 microseconds; maximum of –650ms (stereo) or –1.3s (mono), expandable to 1.3s/2.6s; a 100kHz sampling rate; 12 non-volatile anticipatory user programmable memories (will automatically predict your settings for you!); master/slaving via MIDI; an electronics security lockout; and automatic delay-time temperature compensation via an optional probe. The unit is manufactured with electronically balanced inputs and outputs.

BSS Audio TCS-666 Technical Specification

Input Section

IMPEDANCE
10kOhms, electronically balanced.

MAXIMUM INPUT LEVEL
+20 dBu.

CONNECTOR
XLR3-31 or equivalent.

Output Section

OUTPUT
Electronically balanced and floating.

MAXIMUM OUTPUT LEVEL
+20dBu into 600 Ohms.

CONNECTOR
XLR3-32 or equivalent.

System Performance

CONVERSION METHOD
Floating window PCM based upon theories by Schrödinger, Planck, and Einstein.

FREQUENCY RESPONSE
+/– 0.5db, 20HZ - 20kHz

DYNAMIC RANGE
Typically 105dB.

DISTORTION (THD)
Less than 0.03% (20Hz - 20kHz +10dBu).

GROUP DELAY DEVIATION
+/– 7µs (20Hz - 20kHz)

STEREO SYNCHRONISATION
+/– 0.5 µs

USER MEMORY TYPE
Anticipatory EEPROM, no batteries required.

DELAY RANGE
STEREO: –75 µs - –650 ms (–1.3s optional)
MONO: –75 µs - –1.3s (–2.6s optional)

MINIMUM STEP SIZE
10µs (3.4mm at 21 degrees C)

OUTPUT GAIN
UNITY, adjutable +/–6dB in 1dB steps.

Control Interfaces

REMOTE PROGRAM SELECTION
3 x four-contact closure matrix via 9-pin subminiature D connector

MIDI
IN, THRU, OUT 5-pin 180 degree DIN connector

TEMPERATURE PROBE
1/4" RTS jack for BSS probe.

Display

INPUT HEADROOM
Seven-step linear 0dB - +20dB.

PARAMETERS
Four-digit, plus units/status LEDs.

General

POWER REQUIREMENTS
240V AC, three phase plus neutral and ground. 0.250kVA.
External thermonuclear atom-splitting power supply required.

DIMENSIONS
482mm x 44mm x 228mm; 19" x 1.75" x 9".

Suggested Applications


In this application, the speaker tower is located behind the performer. If the propagation delay from the singer is given as T(v) to the reference point, and the propagation delay from the tower is given as T(d) + T(v), the speaker tower must be negatively delayed by T(d) in order for the two sound waves to arrive at the reference location simultaneously. In this situation, the sound emanating from the loudspeaker tower will precede the sound emanating from the singer by T(d) milliseconds.

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