Name: Tiptop Audio SD909 Analog Snare Drum Module
Brand: Tiptop Audio
Price: 200.0 USD
Availability: OutOfStock

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$200.00

Tiptop Audio SD909 Analog Snare Drum Module

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Tiptop Audio SD909 is the iconic TR-909 snare drum and noise generator for use in eurorack format. Tiptop Audio painstakingly tested the module in their lab to sound like a fresh machine coming off of the assembly line back in the 80s. On top of the original circuit, they have added new features that expand the palette of what can be produced with this analog circuit.

The sound of SD909 consists of two main sections: the binary noise generator and two modulated triangle oscillators. The oscillators provide the low end punch while the noise makes up the upper sonic spectrum, resulting in a combination that makes the 909 snare sound so rich. In the SD909 module, the noise generator and oscillators are variable and voltage-controlled, which pushes the circuit beyond its original boundaries, offering new sounds as well as many variations of the original tone. The panel has markings to guide setting the knobs to reproduce the snare sound of the vintage machine.

Just like the other drums in this series, SD909's high-powered output gain stage allows further enhancement of the sound through distortion and clipping. Tiptop Audio has designed a dual pulse-shaper circuit on each gate input so you can trigger SD909 with trigger/gate signals from step sequencers, clock dividers or any other pulse/clock sources. Also, SD909 is equipped with access to the MIXZ MixBus, matching the rest of the Tiptop line of percussive modules.

Module controls

TONE knob: sets length of noise section
LEVEL knob: master output gain level
TUNE knob: controls pitch of internal VCO
SNAPPY knob: sets gain of noise section
VC knob: controls clocking frequency of noise generator
ACC knob: accent level control, affects loudness and attack levels
TRIGGER button: triggers sound engine

Patch points

NOISE OUT output: pure, unfiltered noise output
VC-NOISE input: CV control over clocking frequency of noise generator
ACCENT IN input: gate trigger input to trigger accent
GATE IN input: gate trigger input to trigger snare sound
VC-TUNE input: CV control over pitch of internal VCO
SD OUT output: audio output

Physical specifications

Size: 8hp
Module depth: 46mm
Power usage: 35mA @ +12V, 30mA @ -12V

SKU	TIP-SD909
Vendor	Tiptop Audio
Module Type	Drum/Percussion
Module Width	8hp
MPN	SD909
Module Power Usage	35mA @ +12V 30mA @ -12V
1U Module	No
+5V Required	No
Depth	46mm

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