Helio is a new FREE and open-source music sequencer
Helio is a free, open-source sequencer that encourages experimentation with exotic scales and microtonal temperaments. It’s important to note that Helio isn’t meant to take your project from...
Class A Tape-Preamp Character.
Two Channels, Zero Setup.
Perpetual license - pay once, own it forever.
By purchasing you agree to our EULA and Privacy Policy.
Studio 351 doesn't wait for you to touch a knob. The moment signal hits it, a fixed low-mid weight, retuned tube saturation goes to work - real Class A tape-machine heft. Every control is there to shape it further, but the character is already on the track before you make a single decision.
Input drives the saturation, Bass and Treble sit exactly where they matter, Output sets where it lands. The Tape Format EQ gives you one more move: 7.5 and 15ips NAB as well as 15ips AME, a single knob that recolors both channels at once.
Load Drum Deck. Push the Input Past Noon.
Listen to the low end pick up mass, not just level. That's the fixed low-mid weight and retuned saturation doing exactly what they're built for. Every knob you touch from there is a real decision.
Try Studio 351 FreeNo account required - we send the link to your email. Silences briefly every 30 seconds in demo mode.
Tape Format EQ
Tape Format EQ sits above both channel strips and recolors the whole plugin at once - it's not per-channel because it's not a mixing decision, it's a format decision. 7.5 NAB is the slowest of the three and the darkest, more bottom end, less top. 15 NAB picks up speed and evens things out, still an NAB curve underneath. 15 AME runs the same 15 ips but a completely different curve, and it's the brightest of the three.
It's a different move than Bass and Treble below it too - those are mix decisions per channel, Tape Format EQ is one format decision for both.
Channel Modes
Three modes, three completely different jobs. Mono sums both inputs through a single channel and puts all the character straight up the center - kick drums, bass, anything that needs to hit hard and land in the middle. Stereo runs both channels together with one set of knobs shaping both sides, the way a classic stereo preamp runs.
Dual mode is what you came for. Each channel runs fully on its own - its own drive, its own response, its own level. Link them when you want them to match. Unlink them when the track demands something different from each side.
The VU Meters
Two large VU meters sit front and center, and a single switch decides what they're reading. Leave it on Output to watch what's actually leaving the plugin - the standard view. Flip it to Input to gain-stage what's coming in, before the preamp or any processing touches it. In Dual mode both needles read independently; in Mono mode the right needle rests and the left one tells you exactly where the track is landing.
Ten Factory Presets
Load Studio 351 and you're already in business. Drum Deck drives the input hard for low-end mass on a kick or drum bus. Reel Warmth and Vintage Heft lean into the tape-machine weight for a rounder, older character. Air & Iron opens the top up without losing the body underneath. Hot Bias pushes saturation harder for material that wants real grit, and Blend Ready pulls output back for parallel work.
Every preset is a real position, pulled from actual use against real program material - not a range demo. Load the one closest to the job, move from there, and trust your ears. Save your own presets, A/B between them, import and export.
One-time purchase. Yours forever. No subscription, no renewal.
Install on up to three machines simultaneously. Need to move a license? Email us.
Encrypted activation over HTTPS. No telemetry. No data leaves your machine during use.
You email us, we answer. No ticket queues, no bots, no knowledge base rabbit holes.
VST3 (64-bit) - Windows, macOS, Linux
AU (64-bit) - macOS only
Windows 10 / 11
macOS 11 Big Sur or later (Apple Silicon + Intel)
Linux - Ubuntu 22.04+ or equivalent
Any VST3-compatible host: Reaper, Cubase, Studio One, Ableton Live, FL Studio, Bitwig Studio, Nuendo, and more
AU (macOS): Logic Pro, GarageBand, MainStage
Plugin buffer only - no lookahead, no oversampling latency
Perpetual, single user
3 simultaneous activations
Need to move a license? Email us
SHA-256 (mmedia-studio-351-v1.0.3.zip): e4cb86b7413003a1d13a78c62b0ea58cc721c62f56b2baddca322e9d1b98e45d
Tested on Ubuntu 22.04/24.04, Debian 12, Fedora 40. Requires one system library for license verification:
sudo apt install libsodium23 # Ubuntu / Debian sudo dnf install libsodium # Fedora / RHEL sudo pacman -S libsodium # Arch
VST3 only. Confirmed working in REAPER and Bitwig.
Perpetual license - pay once, own it forever.
By purchasing you agree to our EULA and Privacy Policy.
Helio is a free, open-source sequencer that encourages experimentation with exotic scales and microtonal temperaments. It’s important to note that Helio isn’t meant to take your project from...
Elgato's Stream Deck, a push-button desktop controller with interactive color keys and software shortcuts, has quietly become an ideal DAW accessory. Take, for example, this thoughtfully designed...
SSA Plugins has updated their first- to tenth-order Ambisonic dynamic range plugins, aXCompressor and aXGate, to version 1.4.0. This new version adds a spatial side-chain that can be used to drive...