Firechild

Name: Firechild
Price: 99 USD
Author: Tone Empire

by Tone Empire · Compressor · Vari-mu tube compressor

Not rated yet

Firechild is a vari-mu tube compressor based on 1950s broadcast hardware, built with dynamic convolution rather than static snapshots.

It offers three tube circuits plus a clean mode, six release settings and a filtered modern sidechain, for $99.

Best for: Mix Bus, Mastering, Vocals, Drum Bus. Genres: all genres.

Keywords: tube, vari-mu, broadcast, clean, hardware emulation, sidechain input, vocals, 50s, bus processing, convolution, glue, impulse-response based, sampled hardware, bass, drums, full mix, mix bus, classic, drum bus, mastering, mixing, modern, oversampling, parallel processing, samples & loops, single-band, smooth, stereo-linked, transparent.

What it does

Firechild is Tone Empire's vari-mu tube compressor, modelled on the classic 1950s broadcast compressor often called the king of compressors. Tone Empire calls it "the fairest child of the vari-mu dynasty", built with dynamic convolution that samples real hardware at several gain and compression stages.

Four circuits: A, B and C are three tube emulations with different frequency and harmonic responses; Off gives a clean, transparent mode without the tube colour.
Six release settings: emulated release times that follow the original unit, from fast broadcast to programme-adaptive.
Extra controls: Knee, Bias and Mix controls that the original hardware never had, so you can soften the onset, change the character and blend for parallel compression.
Sidechain filters: 24 dB/oct high-pass and low-pass filters on the detector, to stop low end or top end driving the gain reduction.
Stereo modes: stereo link, or independent left/right operation as two mono channels.
Quality: 8x oversampling and 8 presets.

It comes with free updates. A 15-day full-version trial is available with no feature limits.

Source: Tone Empire product page

When to use it

Firechild is the better pick when you want vari-mu glue with more control than the original hardware offers. Compared with UA's Fairchild Tube Limiter Collection and IK Multimedia's Model 670, it adds Knee, Bias and Mix controls, sidechain filters and a clean Off mode. Compared with Analog Obsession's free MuChild, it gives three tube flavours to choose from, though it costs more and is heavier on CPU. Unlike Pro-C 3, it has no detailed metering or visual display; it is a character tool rather than a surgical one, and suits buses more than every channel.

Best for: smooth glue on mix buses, masters, drum buses, bass and vocals.
Genres: general purpose; especially pop, rock and soul-style productions that want vintage weight.
Look elsewhere if: you need fast, precise peak control (the 1176 Classic Limiter Collection or Pro-C 3 suit better), or you want to run it on many tracks at once on a modest computer.
Tip: MusicTech warns that the fastest settings can flatten transients and kill presence; the Mix control lets you blend some of that back.

What producers say

Reviewers see it as a characterful, good-value vari-mu emulation, with CPU load the main drawback.

MusicTech (Robbie Stamp, 2022) gave it 8/10, praising tube models that "immediately colour the source" and the added Knee, Bias and Mix controls, and found it useful on drums, bass, vocals and the mix bus.
Criticisms: MusicTech noted a substantial CPU load, especially with oversampling, and metering that shows gain reduction only, with no input or output levels.

MusicTech review

Where to buy

Tutorials and reviews

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