Tiptop Audio RS909 Analog Rimshot Drum Module


Special Financing Options Available*

Hurry, Only 1 Left!
Free Shipping
Hassle-Free Returns
Trusted Retailer
Tiptop Audio Eurorack TR-909 Rimshot Circuit Module

Tiptop Audio RS909 is the Roland TR-909 rimshot analog sound generator in a eurorack module, adding yet another low-cost analog drum generator from a legendary drum machine to your modular synthesizer and expanding your Tiptop Audio modular drum machine even further.

Tiptop Audio used an exact reproduction of the original analog circuit for the RS909. Its sound is generated by a clever set of three T-bridge oscillators, each producing a damped sine wave at a different frequency. The mix of these oscillators goes through a VCA whose gain is controlled by an envelope generator, providing the well known attack feel of the sound.

The front panel has control knobs for two internal oscillators, OSC1 and OSC2, for adjustment of their pitch, further extending the sounds this circuit is capable of and allowing fine adjustment to the classic sound.

RS909 includes a high-powered output gain stage capable of producing hot signals. On the inputs, Tiptop Audio has designed a pulse-shaper circuit so you can trigger RS909 with trigger/gate signals from step sequencers, clock dividers or any other pulse/clock sources. This eliminates the need to shape pulses sent to the module and ensures the same stable sounds at peak power, regardless of your pulse source.

Based on the architecture of the 909, the Accent input is versatile and able to take in both CV and gate signals for continuously changing dynamics. All of these unique features make integrating this legendary sounds generator into your modular synth easy, unleashing the power of real analog drums.

  • Module controls
    • LEVEL knob: master output gain level
    • OSC1 and OSC2 knobs: control frequencies for two of RS909's three oscillators
    • ACCENT knob: accent level control, affects loudness and attack levels
  • Patch points
    • ACCENT IN input: gate trigger input to trigger accent
    • GATE IN input: gate trigger input to trigger rimshot sound
    • RS OUT output: audio output
  • Physical specifications
    • Size: 4hp
    • Module depth: 36mm
    • Power usage: 12mA @ +12V, 10mA @ -12V
More Information
Manufacturer Tiptop Audio
Condition New
Mfg. Included Accessories  
Module Type Drum/Percussion
Module Width 4hp
Depth 36mm
1U Module No
Module Power Usage 12mA @ +12V
10mA @ -12V
+5V Required No
Unique Features N/A

Tiptop Audio Limited Warranty

Tiptop Audio offers the most extensive product warranty on the analog synthesizer market.

The warranty fully covers any defects or malfunction of their modules for one full year.

Standard Shipping

When you place an order with Kraft Music, a confirmation will be sent to you via email, with details of your order, including method of shipping. Once your order leaves our facility, you will receive a shipping confirmation via email, with carrier name and tracking number. Many of the products we sell are shipped in the manufacturer box. These boxes will often have images, model numbers, and other text that indicate the contents inside. If your purchase is a gift, please make proper shipping arrangements or contact us about possible packaging options.

Kraft Music is able to ship to the continental US, HI, AK and PR.

UPS Ground Shipping at Kraft Music

Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account