4-operator FM tone generator / New York low end

NY-
81z Move the floor.

The bass sound that helped define house music

Glassy electric pianos, tight organs, and hard-edged bass. The character of four-operator FM on a single panel that keeps your track moving.

Explore the sound Next: NY90

NY-81z four-operator FM synthesizer plug-in interface

4-OP FM · 8 algorithms

01 / The low end

Made for
the floor.

New York’s underground clubs in the 1990s.

Deep basslines, soulful grooves, and dancefloors moving until dawn. One of the instruments that came to embody that sound was the Yamaha TX81Z.

A distinctive FM bass sound in which Kerri Chandler found the essence of house music. “Lately Bass,” in particular, became a classic patch loved across generations.

Diggin’ Audio brings the appeal of this legendary four-operator FM synthesizer into the present.

The bass that moved the dancefloor.

02 / Core character

Clear edge.
Deep movement.

A clear view of complex FM structures. Follow each operator’s movement as you build everything from bass to keyboard sounds.

4-OP FM

Combine four operators to create tones with clarity and metallic character.

Envelopes

Shape each operator’s evolution over time on a single screen to define the contour of your sound.

Character

Clean, metallic, deep. Bring the distinctive textures of FM into your groove.

03 / Shape the tone

From algorithm
to bassline.

Choose

Choose the algorithm and operator relationships that form the structure of your sound.

Shape

Adjust each envelope’s attack, decay, and release to shape the contour you want.

Move

Add detuning and modulation to build bass that moves the floor.

Engine 4-OP FM

Operators 4 Envelopes

Algorithms 8 Structures

Character Clean / Deep

AU / System requirements

AU system requirements

NY-81z / Current build

Plug-in format: Audio Units AUv2 · 64-bit
Minimum OS: macOS 15.0 or later macOS edition
Processor: Apple Silicon arm64 · Native
Host: AUv2-compatible DAW 64-bit host environment

These are the build requirements of the current NY-81z AU (v0.3.0). They do not guarantee tested compatibility with every OS or DAW version.

AU builds for Intel Macs are not covered by these requirements. Audio Units and Mac compatibility (Apple) ↗

Shape the bass. Move the floor.

Back to Diggin’ Audio

NY- 81z Move the floor.