Nine Series Effects Pedals

maxon nine series guitar effects pedalsSince their introduction in the early 1980s, Maxon Nine Series designs have achieved a legendary status with pedal connoisseurs around the globe. The reasons for this are simple - superior sound quality and innovative features that offer a seamless interface between performer and performance. 20 years later this rule still holds true. Now available with improved circuitry including JRC4558 IC chips and True Bypass Switching, Maxon Nine Series effects remain the standard by which all others are judged.

CS-9 Stereo Chorus Pro

$249.00

More Info

With a circuit based around the Panasonic MN3207 Bucket Brigade IC, the CS-9 Pro’s chorus effect is bold and resonant without sounding harsh.  Unlike the somewhat sterile sounds of its 80’s predecessor, the CS-9 Pro has an edgy, almost grainy quality that keeps your tone articulate and prevents wash-out.

The CS-9 Pro’s custom-tuned oscillator circuit provides enough speed for authentic rotary speaker simulation, and just the right amount of modulation for a lush vibrato that won't leave you feeling queasy.

With its Delay Time control the CS-9 Pro can venture into Flanger territory, adding a resonant, hollow quality to the effect that’s great for solos.

A top-mounted Blend control allows you to adjust the level of the Chorus effect to set it back in the mix against your dry signal.

A unique feature of the CS-9 Pro is its ability to create spatial effects that add dimension to your guitar tone without the traditional Chorus wobble.  With Speed and Depth set low and the Delay Time at max, the Pro thickens your sound much in the manner of a double-tracked guitar, adding girth and life without excessive modulation.

The CS-9 Pro features stereo outputs for mono, stereo, or inverted mono signal routing.

Why Choose Maxon?

The CS-9 Pro is essentially the same as Maxon’s CS550, but in a smaller chassis and with battery or AC power options.

Tech Talk

The CS-9 Pro circuit is similar to the Arion SCH-1 Stereo Chorus, or an updated Boss Chorus Ensemble.  A high-impedance input buffer passes next into a Compander stage that acts as a compressor/expander, bringing the input level of the signal up to an ideal output level and keeping it there as the signal decays – this provides a good signal-to-noise ratio and gives the chorusing section a nice, steady signal to modulate.

The Chorus effect is produced by a Panasonic MN3102 low-voltage clock driver IC and a Panasonic MN3207 BBD IC which is controlled by the MN3102.  Though the 3207/3201 combo has less delay range than other BBD’s of this type, the difference is negligible and the inherent decay of signal quality adds “vintage lo-fi warmth” to the signal.

After the Chorus section, the signal hits another Compander to level everything out and is then fed to an output buffer.

At the end of the circuit the signal is phase-split and sent to the two low-impedance stereo outputs - Output A is in-phase and Output B is phase inverted (90 degrees out of phase).

The CS-9 Pro features Mechanical True Bypass switching on both outputs via a Fujisoku 4PDT switch.

Mods & Mends

Input Level Mod

Video

cs9 video 01

GodlykeInc

Tone Talk Episode 5 - Maxon Choruses
cs9 video 02

GodlykeInc

Killswitch Engage Gear 2012 Interview

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Specs

Input Impedance: 500K Ohms Input Jack: 1/4 inch standard phone jack Output Impedance: 10K Ohms or less Output Jack: 1/4 inch standard phone jack Outputs: 2 (Out, Inv. Out) Residual Noise: -92 dB or less (input shorted IHF-A weighted) Delay Time: 0.9 mSec to 6.4 mSec Speed Frequency: 0.4 Hz to 8 Hz Controls: Speed, Width, Delay Time, Blend Switch: Normal/Effect (true bypass configuration w/4PDT switch) Power Supply: 6F22 9V Manganese dry cell battery x1 or Maxon AC adaptor Power Consumption: 26 mA (9 V) or 26 mA (10 V) Dimensions (whole): 74 mm (W) x 124 mm (D) x 54 mm (H) Weight: 580 g (including battery) Options: Maxon AC Adaptor (AC210N) Tip Negative/Barrel Positive configuration Accessories: 9V Manganese dry cell battery x 1 Warranty Card: x 1 User's Manual: x 1 * All specifications are subject to change for improvement without notice or obligation. All brand names and product names are trademarks or registered trademarks of their respective companies.
  • Updated analog chorus based on vintage 80’s CS-9
  • Wide range of standard chorus effects
  • Unique “spatial” effects unavailable with other chorus units
  • Panasonic MN3207 Bucket Brigade IC
  • Delay Time and Effect Blend controls
  • Stereo outputs
  • True Bypass Switching

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Geir Helgi Birgisson commented on 04-Apr-2015 06:57 PM5 out of 5 stars
Excellent chorus!
Works great with synths as well, very smooth and lush!
(enough headroom)
CS-9 Stereo Chorus Pro
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