Based on the now-defunct CS505 Stereo Chorus, the Maxon PAC-9 Pure Analog Chorus takes that venerable design and brings it into the 21st century.

Featuring an improved oscillator section, the Maxon PAC-9 can perform rotary-speaker simulations and tremolo-chorus effects that were not previously attainable with the CS505. Pure and Bright switches provide a variety of useful chorus effects while performance is kept dead-quiet thanks for Maxon's proprietary RMS noise reduction circuity.

Input Impedance: 500K Ohms

Output Impedance: 10K Ohms or less

Maximum Output Level: +9 dB (400 Hz)

Delay Time: 4.6 msec – 7.68 msec

Speed Frequency: .33 Hz – 8 Hz

Controls: SPEED, WIDTH

Switch: BYPASS/EFFECT (mechanical TBS)
PURE, BRIGHT

In/Out: INPUT, OUTPUT, INVERSE OUTPUT

Residual Noise: -95 dB (IHF-A)

Indicator: BYPASS/EFFECT LED

Internal Circuit Voltage: 9 VDC (DC-DC Converter)

Current Consumption: 21 mA / 9 VDC

Power Supply: 6F22 9V battery or Maxon AC Adaptor

Battery Life:
Manganese battery 8.5 hours @ 25deg C
Alkaline battery 20 hours @ 25deg C

Dimensions: 74 mm (W) x 124 mm (D) x 54 mm (H) / 2.9” (W) x 4.9” (D) x 2.13” (H)

Weight: 580 g (including battery) / 20.46 oz.