We say...
An interesting and original take on a quad VCO here from Vostok - four individual 3340-based oscillators, each with their own timbral controls, plus a handy multi-coloured 'noise bank'. This could conceivably be the only analogue VCO you'd ever need in a compact system.
Manufacturer's description
VCOs are probably the most popular modules in the Eurorack world. In its most common form, an oscillator module creates different basic waveforms by shaping its core, which gives us several timbres sharing the same frequency.
On Sena, we decided to reorganize those principles. We have the basic waveforms as on any VCO, but each has an independent core and frequency control. In addition, the tuning inputs of each channel are daisy-chained, allowing to create easy transpositions or detuning between them.
To maximize stability and tracking accuracy, every channel is designed around the famous 3340 oscillator core, present in many legendary synths like the Roland SH-101 and Jupiter-6, Oberheim OB-Xa, and the Sequential Prophet 5.
On top of that, the module includes four dedicated CV-controlled modifiers to extend the timbral range of each core: a two-stage Folder for the Sine, a Trapezoid shaper for the Triangle, a Phase modulator for the Saw, and a half-range Pulse-width modulator for the Square.
The addition of a complete analog Noise Bank makes Sena a super powerful and compact sound source. A cornerstone for any Eurorack setup.
Features
- Fully analog VCO circuits: Sine, Triangle, Saw and Square
- 1V/Oct pitch tracking over eight octaves
- Dedicated CV controlled Wave Modifier on each oscillator
- Daisy-chained Freq inputs with onboard buffers
- Selectable LFO mode per channel
- Analog noise bank with White, Pink, Blue and Brown circuits
Specs
- Input Impedance: 100kΩ
- Output Impedance: 1kΩ
- CV Inputs Range: 10Vp-p
- Frequency Pot range (FINE switch disabled): ∼ 6 octaves
- Frequency Pot range (FINE switch enabled): ∼ 2 semitones
- Frequency Range in LFO mode: ∼ 0.15Hz to 10Hz
- Width: 14HP
- Depth: 30mm
- Power: 130 mA +12V / 130 mA -12V / 0 mA 5V
How much is my shipping?
Shipping costs are calculated automatically at checkout. Simply add items to your cart and proceed to the checkout page, where you'll see the available shipping options and their prices. VAT at the applicable rate for your country will also be displayed at checkout.
European Union orders:
- Standard shipping is free on orders over €100. Express shipping is available on orders over €100, and free on orders over €400.
Poland orders:
- Standard shipping is free on orders over 250 PLN. Express shipping is free on orders over 500 PLN.
What about local taxes?
By default prices on the site include sales tax at 20%. The precise sales tax rate for your country will be calculated at checkout.
Do you ship to my country?
We ship to all EU member states from our warehouse in Warsaw, Poland. Add an item to your cart and enter your country and postcode to see the available shipping options and prices for your location. If you have any questions about shipping to your country, drop us an email at info@signalsounds.eu and we'll be happy to help.
Shipping methods
All EU orders are shipped via UPS. We offer two service levels:
- UPS Standard – our default shipping option. Delivery times vary by country (see estimated delivery times below).
- UPS Express Saver – next business day delivery to most EU destinations.
Each product page shows the estimated delivery time for your location, so you'll always know what to expect before you order.
Estimated delivery times (Standard shipping)
The times below are estimates in working days from dispatch, based on UPS Standard service. Express Saver delivers by the next business day to most destinations.
| Country | Estimated delivery (working days) |
|---|---|
| Austria | 2–3 |
| Belgium | 2 |
| Bulgaria | 4–5 |
| Croatia | 2–4 |
| Cyprus | 10 |
| Czechia | 2–3 |
| Denmark | 3 |
| Estonia | 2–3 |
| Finland | 3–5 |
| France | 2–4 |
| Germany | 2 |
| Greece | 5–7 |
| Hungary | 2–3 |
| Ireland | 4–6 |
| Italy | 3–5 |
| Latvia | 2–3 |
| Lithuania | 1–2 |
| Luxembourg | 2 |
| Malta | 5–7 |
| Netherlands | 2 |
| Poland | 1–2 |
| Portugal | 4–5 |
| Romania | 3–4 |
| Slovakia | 2–3 |
| Slovenia | 2–3 |
| Spain | 4 |
| Sweden | 3–5 |
These times are estimates and are not guaranteed. Delivery may occasionally take a little longer due to customs processing, local conditions, or carrier delays.
Dispatch times
Orders placed before 15:00 CET (Central European Time) on a working day are normally dispatched the same day. Orders placed after 15:00 CET, or on weekends and public holidays, will be dispatched on the next working day.
If you have an urgent order, please email us at info@signalsounds.eu before placing your order and we'll do our best to accommodate you.
Pre-orders
If a product is listed as a pre-order, it means we've ordered it from the supplier but it's not physically in stock yet. The product listing will include an estimated shipping date based on the best information we have from the supplier, but do bear in mind this is subject to change and is not a guaranteed date.
If you place an order containing a mixture of in-stock and pre-order items, we'll normally hold off on shipping anything until the pre-order item(s) have arrived, rather than splitting it into multiple shipments. If you need the in-stock items sooner, we'd recommend placing separate orders. As always, please get in touch at info@signalsounds.eu if you have questions.
Product Overview
We say...
An interesting and original take on a quad VCO here from Vostok - four individual 3340-based oscillators, each with their own timbral controls, plus a handy multi-coloured 'noise bank'. This could conceivably be the only analogue VCO you'd ever need in a compact system.
Manufacturer's description
VCOs are probably the most popular modules in the Eurorack world. In its most common form, an oscillator module creates different basic waveforms by shaping its core, which gives us several timbres sharing the same frequency.
On Sena, we decided to reorganize those principles. We have the basic waveforms as on any VCO, but each has an independent core and frequency control. In addition, the tuning inputs of each channel are daisy-chained, allowing to create easy transpositions or detuning between them.
To maximize stability and tracking accuracy, every channel is designed around the famous 3340 oscillator core, present in many legendary synths like the Roland SH-101 and Jupiter-6, Oberheim OB-Xa, and the Sequential Prophet 5.
On top of that, the module includes four dedicated CV-controlled modifiers to extend the timbral range of each core: a two-stage Folder for the Sine, a Trapezoid shaper for the Triangle, a Phase modulator for the Saw, and a half-range Pulse-width modulator for the Square.
The addition of a complete analog Noise Bank makes Sena a super powerful and compact sound source. A cornerstone for any Eurorack setup.
Features
- Fully analog VCO circuits: Sine, Triangle, Saw and Square
- 1V/Oct pitch tracking over eight octaves
- Dedicated CV controlled Wave Modifier on each oscillator
- Daisy-chained Freq inputs with onboard buffers
- Selectable LFO mode per channel
- Analog noise bank with White, Pink, Blue and Brown circuits
Specs
- Input Impedance: 100kΩ
- Output Impedance: 1kΩ
- CV Inputs Range: 10Vp-p
- Frequency Pot range (FINE switch disabled): ∼ 6 octaves
- Frequency Pot range (FINE switch enabled): ∼ 2 semitones
- Frequency Range in LFO mode: ∼ 0.15Hz to 10Hz
Technical Specs
Shipping Details
How much is my shipping?
Shipping costs are calculated automatically at checkout. Simply add items to your cart and proceed to the checkout page, where you'll see the available shipping options and their prices. VAT at the applicable rate for your country will also be displayed at checkout.
European Union orders:
- Standard shipping is free on orders over €100. Express shipping is available on orders over €100, and free on orders over €400.
Poland orders:
- Standard shipping is free on orders over 250 PLN. Express shipping is free on orders over 500 PLN.
What about local taxes?
By default prices on the site include sales tax at 20%. The precise sales tax rate for your country will be calculated at checkout.
Do you ship to my country?
We ship to all EU member states from our warehouse in Warsaw, Poland. Add an item to your cart and enter your country and postcode to see the available shipping options and prices for your location. If you have any questions about shipping to your country, drop us an email at info@signalsounds.eu and we'll be happy to help.
Shipping methods
All EU orders are shipped via UPS. We offer two service levels:
- UPS Standard – our default shipping option. Delivery times vary by country (see estimated delivery times below).
- UPS Express Saver – next business day delivery to most EU destinations.
Each product page shows the estimated delivery time for your location, so you'll always know what to expect before you order.
Estimated delivery times (Standard shipping)
The times below are estimates in working days from dispatch, based on UPS Standard service. Express Saver delivers by the next business day to most destinations.
| Country | Estimated delivery (working days) |
|---|---|
| Austria | 2–3 |
| Belgium | 2 |
| Bulgaria | 4–5 |
| Croatia | 2–4 |
| Cyprus | 10 |
| Czechia | 2–3 |
| Denmark | 3 |
| Estonia | 2–3 |
| Finland | 3–5 |
| France | 2–4 |
| Germany | 2 |
| Greece | 5–7 |
| Hungary | 2–3 |
| Ireland | 4–6 |
| Italy | 3–5 |
| Latvia | 2–3 |
| Lithuania | 1–2 |
| Luxembourg | 2 |
| Malta | 5–7 |
| Netherlands | 2 |
| Poland | 1–2 |
| Portugal | 4–5 |
| Romania | 3–4 |
| Slovakia | 2–3 |
| Slovenia | 2–3 |
| Spain | 4 |
| Sweden | 3–5 |
These times are estimates and are not guaranteed. Delivery may occasionally take a little longer due to customs processing, local conditions, or carrier delays.
Dispatch times
Orders placed before 15:00 CET (Central European Time) on a working day are normally dispatched the same day. Orders placed after 15:00 CET, or on weekends and public holidays, will be dispatched on the next working day.
If you have an urgent order, please email us at info@signalsounds.eu before placing your order and we'll do our best to accommodate you.
Pre-orders
If a product is listed as a pre-order, it means we've ordered it from the supplier but it's not physically in stock yet. The product listing will include an estimated shipping date based on the best information we have from the supplier, but do bear in mind this is subject to change and is not a guaranteed date.
If you place an order containing a mixture of in-stock and pre-order items, we'll normally hold off on shipping anything until the pre-order item(s) have arrived, rather than splitting it into multiple shipments. If you need the in-stock items sooner, we'd recommend placing separate orders. As always, please get in touch at info@signalsounds.eu if you have questions.
