Quad Variable LFO
The QV-L is a quad low-frequency oscillator with a variety of waveforms, flexible modulation options, clock sync and presets.
Waveforms included as of Firmware 0.9.0:
- Sine, Triangle, Saw Up, Saw Down, Shark Left and Right, and Square waves, all with variable shape controls (pulse-width for the square wave).
- Sample & Hold with selectable source (CV in, any other LFO, etc).
- Three morphing waves: Sine to Tri, Saw to Tri, Saw to Square
- Stair-step up, down and up-down
- A Sine / Saw / Square sequence-able waveform.
- A variable-pulse width Square wave sequence-able waveform.
- A three output Lorenz attractor chaotic waveform.
- A Perlin-noise style random waveform
- A Logistic Map chaotic waveform generator.
LFO Rates can be set using a variety of modes. There are two logarithmic response modes (Wide and Slow) to cover traditional ranges. There is a Hz mode for specifying the rate from 1Hz to 246Hz. There are also 3 tempo-based modes: 16th, Beat and Bar.
The QV-L's tempo can be set internally, or via a 16th note tempo clock to a Gate input. The QV-L can also be connected to a Vector Sequencer for sync and bi-directional MIDI communication.
The QV-L also includes two simple, linear EGs for modulation duties. The EGs currently have two modes: AR: Attack/Release, and ASR: Attack/Sustain/Release.
The QV-L supports extensive modulation via 8 modulation busses, with selectable sources, destinations and amounts. Sources include 4 CV inputs, all 4 LFOs, and either of two internal envelope generators.
In order to accommodate multi-output algorithms such as the Lorenz Attractor, and for general versatility, each of the 4 CV outputs can be custom mapped. Output processing also includes a selection of handy operations (invert, rectify, etc) and both sale and offset controls.
LFOs can be reset (and EGs triggered) from either of the two front-panel Gate Inputs, or from the TrigA or Trig B buttons.
Most edit pages have animated waveform displays.
The Main Edit page offers 6 customizable parameters for each performance control.
All settings can be saved via onboard presets in flash memory. Up to 40 presets can be saved.
Dimensions
12 HP
35 mm deep
Current Draw
120 mA +12V
20 mA -12V
Dimensions
12 HP
35 mm deep
Current Draw
120 mA +12V
20 mA -12V
How much is my shipping?
Shipping is automatically calculated before you submit your payment information. Simply add items to your cart and proceed to the checkout page, where you'll be offered shipping options and their prices. In the UK it's normally around £4 for order values under £150, and free above that. Shipping to mainland EU is typically between £7 and £20, depending on the shipping method and the size and weight of the order.
Do you ship to my country?
Almost certainly - the site will give you an estimate of shipping costs if you add an item to the cart and then enter your country and postcode. If you have specific requirements (such as if you prefer UPS over FedEx, for example) then let us know in advance and we'll try to work something out for you.
Shipping methods
We use a combination of Parcelforce, DPD, Royal Mail and UPS for the UK, and for international orders it's either Royal Mail, UPS, DHL or FedEx depending on where you are in the world. If you have a particular preference then try to let us know BEFORE you order so we can look into it for you. Please note that there may occasionally be additional shipping charges if you live in a remote area, depending on what surcharges are applied by the shipper. We'll get in touch to discuss this with you in such cases.
Dispatch times
For UK orders, we normally dispatch the same working day if we get the order before 15:00. If you have a really urgent situation then of course drop us an email before ordering and we'll always do our absolute best to accommodate you.
For international orders, we normally dispatch the same day if we get the order before 13:00 but again, occasionally it might be the next day before we can send it out, and sometimes FedEx or UPS may come a little earlier than scheduled which would also push an order into the next day.
Shipping times
Since April 2020 the couriers we use have suspended guarantees for shipping times, so even though we're paying them for priority services - 24-48 hours for most of the world - in practice it's often an extra day on top and sometimes it can be longer.
There is absolutely nothing we can do about this unfortunately. If you are outside the UK and it's a life-or-death situation where you absolutely MUST have that passive mult for the next day then... it may be better to find a local supplier.
Saturday shipping
If you're in the UK and you order before 15:30 on a Friday then we can send something for a Saturday delivery (NB: this applies to UK mainland addresses only). The success rate with DPD is about 95% so it's worth a punt most of the time. Please note that if you select Saturday shipping on an order placed earlier in the week, we'll wait until Friday to ship it.
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 if you have questions.
Product Overview
Quad Variable LFO
The QV-L is a quad low-frequency oscillator with a variety of waveforms, flexible modulation options, clock sync and presets.
Waveforms included as of Firmware 0.9.0:
- Sine, Triangle, Saw Up, Saw Down, Shark Left and Right, and Square waves, all with variable shape controls (pulse-width for the square wave).
- Sample & Hold with selectable source (CV in, any other LFO, etc).
- Three morphing waves: Sine to Tri, Saw to Tri, Saw to Square
- Stair-step up, down and up-down
- A Sine / Saw / Square sequence-able waveform.
- A variable-pulse width Square wave sequence-able waveform.
- A three output Lorenz attractor chaotic waveform.
- A Perlin-noise style random waveform
- A Logistic Map chaotic waveform generator.
LFO Rates can be set using a variety of modes. There are two logarithmic response modes (Wide and Slow) to cover traditional ranges. There is a Hz mode for specifying the rate from 1Hz to 246Hz. There are also 3 tempo-based modes: 16th, Beat and Bar.
The QV-L's tempo can be set internally, or via a 16th note tempo clock to a Gate input. The QV-L can also be connected to a Vector Sequencer for sync and bi-directional MIDI communication.
The QV-L also includes two simple, linear EGs for modulation duties. The EGs currently have two modes: AR: Attack/Release, and ASR: Attack/Sustain/Release.
The QV-L supports extensive modulation via 8 modulation busses, with selectable sources, destinations and amounts. Sources include 4 CV inputs, all 4 LFOs, and either of two internal envelope generators.
In order to accommodate multi-output algorithms such as the Lorenz Attractor, and for general versatility, each of the 4 CV outputs can be custom mapped. Output processing also includes a selection of handy operations (invert, rectify, etc) and both sale and offset controls.
LFOs can be reset (and EGs triggered) from either of the two front-panel Gate Inputs, or from the TrigA or Trig B buttons.
Most edit pages have animated waveform displays.
The Main Edit page offers 6 customizable parameters for each performance control.
All settings can be saved via onboard presets in flash memory. Up to 40 presets can be saved.
Dimensions
12 HP
35 mm deep
Current Draw
120 mA +12V
20 mA -12V
Technical Specs
Shipping Details
How much is my shipping?
Shipping is automatically calculated before you submit your payment information. Simply add items to your cart and proceed to the checkout page, where you'll be offered shipping options and their prices. In the UK it's normally around £4 for order values under £150, and free above that. Shipping to mainland EU is typically between £7 and £20, depending on the shipping method and the size and weight of the order.
Do you ship to my country?
Almost certainly - the site will give you an estimate of shipping costs if you add an item to the cart and then enter your country and postcode. If you have specific requirements (such as if you prefer UPS over FedEx, for example) then let us know in advance and we'll try to work something out for you.
Shipping methods
We use a combination of Parcelforce, DPD, Royal Mail and UPS for the UK, and for international orders it's either Royal Mail, UPS, DHL or FedEx depending on where you are in the world. If you have a particular preference then try to let us know BEFORE you order so we can look into it for you. Please note that there may occasionally be additional shipping charges if you live in a remote area, depending on what surcharges are applied by the shipper. We'll get in touch to discuss this with you in such cases.
Dispatch times
For UK orders, we normally dispatch the same working day if we get the order before 15:00. If you have a really urgent situation then of course drop us an email before ordering and we'll always do our absolute best to accommodate you.
For international orders, we normally dispatch the same day if we get the order before 13:00 but again, occasionally it might be the next day before we can send it out, and sometimes FedEx or UPS may come a little earlier than scheduled which would also push an order into the next day.
Shipping times
Since April 2020 the couriers we use have suspended guarantees for shipping times, so even though we're paying them for priority services - 24-48 hours for most of the world - in practice it's often an extra day on top and sometimes it can be longer.
There is absolutely nothing we can do about this unfortunately. If you are outside the UK and it's a life-or-death situation where you absolutely MUST have that passive mult for the next day then... it may be better to find a local supplier.
Saturday shipping
If you're in the UK and you order before 15:30 on a Friday then we can send something for a Saturday delivery (NB: this applies to UK mainland addresses only). The success rate with DPD is about 95% so it's worth a punt most of the time. Please note that if you select Saturday shipping on an order placed earlier in the week, we'll wait until Friday to ship it.
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 if you have questions.
