Wednesday, April 13, 2011
"The JDK Audio R22 dual channel compressor features two channels of API's patented award winning compressor circuit in a rack mount unit with internal power supply. This is the same compressor circuit originally designed into all ATI Paragon mixing consoles. Each channel includes the patented 'THRUST' switch to protect the sensitive high frequency content of the audio signal even under the most vigorous of compression ratios. The perfect companion to your R20 mic-preamp and R24 EQ, the R22 compressor provides comprehensive easy-to-use control of the audio signal with custom VU metering of both output and gain reduction. The two channels can even be linked for use as a stereo compressor with true RMS power summing of the left and right signals."
- Patented THRUST circuit
- Variable Threshold, Ratio, and Make-up Gain controls
- Switchable metering of output level and gain reduction
- Above threshold LED indication
- Switchable Hard or Soft Knee compression
- Linkable for stereo operation with true RMS power summing
Fully balanced XLR and 1/4" inputs and outputs
"The Summit Audio MPC-100A Mic Preamp/ Compressor-Limiter is a single channel tube preamp and tube compressor/limiter all in a two-space rackmount unit. It accepts line, microphone, and Hi-Z input signals. The preamplifier provides a warm yet crisp vacuum tube tone. The compressor/limiter section has very fast attack times, making it ideal for optimizing signal prior to entering the digital domain. In addition to having superb sound and a user friendly interface, the MPC-100A has the robust build quality consistent with the Summit Audio family of products."
"The AMTEC PHANZEN is a unique compressor that has been designed to be used in conjunction with any standard microphone preamplifier. The purpose of the preamplifier is to restore the gain lost in the PHANZEN and, furthermore, to power the PHANZEN through phantom-power.
The PHANZEN is a dual channel unit, where each channel is separate, but the control voltages of the both channels can be linked together by the LINK switch for stereo operation (the gain reduction in both channels will be the same, so stereo image will not shift to any side during compression) or for special effects like ducking.
The input of the PHANZEN should be driven by a line-level signal, the output is at micprophone level that is amplified by the mic preamp back to the line-level.
The preamp choice has great influence on the overall sound, so it allows the user to customize the combo's sonic character by selecting of the preamplifier paired with the PHANZEN. The gain of the preamplier should be set somewhere between +30dB and +40dB most of the time."
Gain (no compression): -20 to -50dB (in 3dB steps)
Max. Gain Reduction: over 20dB
Input Impedance: 2kohms
Output Impedance: 200ohms
Frequency Response: 20Hz-25kHz
current consumption: 5mA
Ratios: 2.5:1 (COMP setting)
9:1 (LIM setting)http://amtecaudio.com/phanzen.html