Vostok Instruments - Halo
€199.00
Net: €167.23
Ordered
| U | 3 |
| HP | 10 |
| Depth | 30 |
| +12V | 50 |
| –12V | 50 |
Vostok Instruments Halo — Quad Analog LFO with Pair-Based Boolean Logic, 16 Related Modulation Signals in Total.
Halo is a four-channel analog LFO that turns a small set of controls into a lot of related movement. Each channel has its own CV-controlled analog core with simultaneous triangle and square outputs, plus two frequency ranges. LO reaches down to cycles of over two minutes for very slow drift, while HI climbs to 80 Hz for faster modulation into vibrato/tremolo or audio-rate. The frequency CV inputs are normalled across the channels too, so one source can sweep several LFOs at once unless you break the chain.
The clever part sits in the Logic Section at the bottom. Channels 1–2 and 3–4 are paired internally, and each pair feeds four extra outputs derived from the two source LFOs. AND outputs the lower of the two signals at any moment — the result hugs whichever channel is currently closer to its minimum. OR does the opposite, following whichever is closer to its maximum. XOR responds to how far apart the two sources are, rising as they diverge and falling as they meet. MIX is the simplest of the four — it just sums both channels together. Each channel also has a switch that decides whether its triangle or square wave is sent into the logic circuit — a small flip with a pretty large effect on the result.
The total comes to 16 modulation signals running at once from four LFO cores, all sharing a kind of family resemblance. This is great if you want movement across a patch that feels connected rather than having four unrelated wobbles.
Features:
- 4 analog LFO channels with manual and CV control over frequency
- Simultaneous triangle and square outputs per channel
- Frequency CV inputs normalled across channels
- Two frequency ranges per channel: LO (0.008 Hz – 8 Hz) and HI (0.08 Hz – 80 Hz)
- Logic section for channel pairs 1–2 and 3–4
- AND, OR, XOR and MIX outputs per pair
- Switchable triangle/square source selection for the logic section
- Up to 16 simultaneous modulation outputs
- 10 Vpp output level