Atomic Squeezebox

MSRP $3995
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Single channel Vacuum-tube dynamics processor


The ASB is designed to control the amplitude of an audio signal that is passed through it while imparting virtually none of the sonic artifacts traditionally associated with compression and limiting. In short, our intention is that it does not have a sound, though we certainly hope it is this very fact that will help make your final product sound better.

As such, it can take a little getting used to, and new users sometimes find themselves experimenting with steep ratios and low thresholds just to “hear it working.” As you learn to dial in exactly what you need, though, we think you’ll begin to find that owning an ASB is best compared to having a skilled assistant, who knows the program material backwards and forwards, riding faders.


1.     General Description: Full-band analog dynamics processor, employing a proprietary 
        electrical circuit based on dual triode vacuum tubes.

2.     Gain Reduction: From 0dB to over 20dB.

3.     Distortion (typical): Less than 0.1% total harmonic distortion (THD) at 0 VU.

4.     Noise Floor (typical): Less than -85 dB below program at threshold of compression.

5.     Frequency Response: 20 Hz to over 20,000 Hz

6.     Input Level: -20 dBm to +20 dBm

7.     Output Level: +4 dBm (nominal)

8.     Input Impedance: 600 ohms, floating

9.     Output Impedance: 600 ohms, floating

10.   Panel Size: 2U (two vertical rack spaces)

11.   Depth behind panel: 12 inches

12.   Meter(s): Reads output level or gain reduction in dB. (0 VU = +4 dBm)

13.   Connections: Audio I/O via 3-pin XLR connectors (pin 2 hot), AC line entry via IEC type 
        III connector. Stereo link (single channel ASB only).

14.   Fuse: 1.5 amperes, 3AG

15. Power Requirements: 115 – 120 volts AC, 50 to 60 Hz, 50 VA

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