AM660 Limiter

Recreating the classic 660, AnaMod-style

 

· Classic Variable-Mu compression profile and vintage tone
· Six 660 time constants plus two vocal-friendly variations
· All analog - no latency or conversion
· Single-space 500 series rack format



Actual Size (on some screens)

The Fairchild 660 limiter is arguably one of the most famous and sought-after compressors ever made. The magical way it adds density and dimension to a track or a mix has been demonstrated on many of the best-sounding records made in the last 50 years.

The AM660 is a faithful recreation of the classic sound and compression profile of the 660, using the AnaMod™ process to model the complex tube circuitry of the 660 and implement it entirely in the analog domain. Unlike a digital plug-in or processor based outboard gear, there is no latency, and no A/D or D/A conversions to compromise the sound.


AM 660 Specifications

Input Impedance: 20KΩ, balanced
Output Impedance: less than 50Ω
Max. Output Level: +27dBu, balanced
Input Gain: -15 to +15 dB
Frequency Response: +/- 1 dB from 40Hz to 15kHz
Noise Level: better than 73dB below +4dBu, 0-30kHz
Limiting Noises: same level as a vintage 660 with GE five star 6386 tubes and properly balanced
Total Harmonic Distortion: level- and compression-dependent
Compression Ratio: Variable from 1: 1 to 20:1, level-dependent

Time Constants: 1-6 are the classic 660 time constants, 2a and 2b are variations on #2
 
Position
Attack Time
Release Time
1
0.2ms
0.3s
2
0.2ms
0.8s
2a
0.2ms
1s
2b
0.2ms
2s
3
0.4ms
2s
4
0.8ms
5s
5
0.4ms
Auto, as in 660 #5
6
0.2ms
Auto, as in 660 #6

All specifications are subject to change without notice.


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