The Spectra 1964 model V610 is a required addition to any mastering suite. In many mastering signal chain configurations, the V610 is used as the first device, as a peak limiter. The result is dramatic and measurable. With the elimination of audio program peaks, (inaudibly), signal processing devices that follow the V610 have headroom increases of 6-12dB, a reduction of noise and overload distortion, and provide extended harmonic content that is lost during conventional amplifier overload.
Like other Spectra 1964 Complimiter products, the V610 shares the revered and unequaled 601 Complimiter module. Originally introduced in 1969, the 601 set a standard that is well beyond the capabilities any other compressor limiter circuit. The V610 is an enhanced version of the C610 in that it allows for easy recall of prior settings in a high-resolution dB format. The ultra high-quality Elma switches feature mil-spec metal film resistors, and long-lasting contacts. In fact, the three space format of the V610 is due to the physical size of the switches on the control surface. In addition, the V610 employs the model 110A amplifier for makeup gain. The result is low distortion and noise, with a +24dBu output, (irrespective of audio transient peaks).
SPECIFICATIONS:
Input Impedance: 600 Ohms
Output Impedance: 2.5k Ohms
Input Pad: Selectable -10dB, -20dB, -30dB
Maximum Gain: 65dB
Threshold attack level: -40 dBm
Maximum Output: +24dBu
THD: Less than .01% @ 30Hz-20KHz, at +22 dBm, up to 30dB compression, dependent on release setting
Signal/Noise: Better than 80dB below +4dBm output, with -40 dBm input, 20Hz to 20kHz
Frequency Response: +/- 0.1dB 20Hz-40KHz
Compression/Limiting Ratio: Continuously variable from 1.1:1 to 100:1
Attack time: 100 nanoseconds to 1.2 milliseconds, automatically variable.
Release Time: Continuously variable from 50 milliseconds to more than 10 seconds
Phantom Power: 48VDC