Cš-L is a dual voltage controlled oscillator.
It takes the modern approach of dual primary oscillators and expands upon them.
Each oscillator sports its own wavefolder, PWM output and wide range of classic waveforms.
A four-quadrant multiplier stage allows for ring modulation as well as rectified and positive only amplitude modulation.
Each oscillator uses a different core (top sawtooth core, bottom triangle core) giving the best of both worlds.
A versatile, definable routing modulation bus allows for CV control over a huge range of cross modulation without even needing to insert a patch cable.
Complex oscillators traditionally comprise of two VCOs used to generate complex waveforms. The classic configuration uses an arrangement of modulator -> carrier. Use of wavefolders enhance the timbre complexity to a ‘final’ output.
The Cš-L takes this tried and tested configuration, but blurs the lines of which voice is the carrier and which is the modulator. They can be either or both simultaneously!
Each Oscillator has it’s own unique characteristics and perks, down their core circuits.
There is a wavefolder per oscillator, giving the Cš-L two entirely separate ‘final’ outputs.
Oscillator A (Top) is a sawtooth core VCO which produces sine, triangle, sawtooth and pulse outputs.
The pulse is a classic variable duty cycle waveform.
The LFO button will insert a negative DC offset to the oscillator’s frequency control. This reduces the range into LFO territories.
The SYNC input hard syncs the oscillator’s waveforms which allows for classic hard sync tones when running at audio rate. In LFO mode the sync input can be used to force waveform resets. Very useful when clocking LFO patterns.
Oscillator B (Bottom) is a triangle core VCO. It has a slightly different set of waveforms to A: sine, triangle, square/sub and a double pulse with variable centre pulse width.
The SUB output can generate a square wave at the oscillator’s fundamental frequency, 1 octave below, or 2 octaves below. The button switches the octave and illuminates to identify the current sub state.
The SYNC input for Oscillator B is a soft sync control which inverts the triangle core’s charge direction on an impulse. This allows for unison tuning with other voices with frequency locking precision.
The SYNC button will choose internal soft syncing of oscillator B to oscillator A, or hard sync of oscillator A to oscillator B. Note that with A hard sync’d to B, the SUB square output is used as the clocking signal which means changing octaves can be used to immediately affect sync ratios.
The LINK button activates a cross normalisation between the oscillators allowing for a single control voltage signals to be used at either 1V/OCT input to control both voices in parallel.
The MULTIPLY output uses the sine waves of both oscillators normalised to the corresponding input jacks. The button alters the affect of the signal inserted at oscillator A’s input. It selects between RING, AM and RECT.
RING is full 4-quadrant amplitude modulation, more commonly referred to as ring modulation.
AM removes any negative voltage in the modulator signal, allowing only positive voltages to control the carrier amplitude.
RECT rectifies any negative voltage, inverting it to positive.
Each amplitude modulation type has it’s own distinct sonic character with differing makeups of sideband frequencies.
The multiplier section can be used with any signals allowing for implementations entirely isolated from the Cš-L’s voices if desired.
The INDEX control utilises two internal VCA’s used to control the amplitudes of branches of each oscillators’ sine wave.
These modulation signals can be routed internally to the opposite oscillator’s FM input, wavefold CV input, wavefold symmetry input, or PWM CV control.
The INDEX pot (and attenuvertable CV input) controls the depth of both oscillators’ sine waves simultaneously for use as a complex cross modulation bus.
The WAVEFOLD faders control the amplitude of each oscillators’ sine waves via exponential response VCAs.
These can be ‘struck’ with external envelopes and pulses for classic west coast plucked sounds.
The fader full left will silence the FINAL output. Centred, it will raise the amplitude to a sine wave and beyond that it will fold.
When not receiving from the modulation bus, the wavefolder symmetry controls receive a DC reference voltage that can be used to bias the sine waves before hitting the wavefolders.
Enabling the modulation bus to the symmetry control will effectively sum a scaled/inverted version of the opposite oscillator’s sine wave with the primary’s, before the wavefolder. This can also be used to mix any external signal with either of the oscillators’, pre wavefolder.
The results are rich and bell-like but without the clangorous a-tonality of FM
With very minimal patching, results can be extremely rich and… complex!
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, 'next working day' shipping is free if the order value is over £150, and £5 otherwise. We can also ship on a 'next working day before 12pm' service, which costs £6 for orders over £150 and £7.50 for orders under £150.
Shipping to mainland EU typically costs 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 DPD, Royal Mail and Parcelforce for the UK, and for international orders it's either DHL, FedEx, UPS, Royal Mail or Parcelforce 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 aim to dispatch the same working day if we get the order before 16:00. 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 the couriers may come to collect a little earlier than scheduled which would also push an order into the next day.
Saturday/Sunday shipping
If you're in the UK and you order before 16:00 on a Friday then we can send something for a Saturday or Sunday delivery with DPD. This is FREE for order values over £350, £5 for order values between £75 and £250, and £7 for order values under £75. (NB: this applies to UK mainland addresses only). Please note that any orders placed after 16:00 on a Friday will ship on the Monday.
International 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.
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
Cš-L is a dual voltage controlled oscillator.
It takes the modern approach of dual primary oscillators and expands upon them.
Each oscillator sports its own wavefolder, PWM output and wide range of classic waveforms.
A four-quadrant multiplier stage allows for ring modulation as well as rectified and positive only amplitude modulation.
Each oscillator uses a different core (top sawtooth core, bottom triangle core) giving the best of both worlds.
A versatile, definable routing modulation bus allows for CV control over a huge range of cross modulation without even needing to insert a patch cable.
Complex oscillators traditionally comprise of two VCOs used to generate complex waveforms. The classic configuration uses an arrangement of modulator -> carrier. Use of wavefolders enhance the timbre complexity to a ‘final’ output.
The Cš-L takes this tried and tested configuration, but blurs the lines of which voice is the carrier and which is the modulator. They can be either or both simultaneously!
Each Oscillator has it’s own unique characteristics and perks, down their core circuits.
There is a wavefolder per oscillator, giving the Cš-L two entirely separate ‘final’ outputs.
Oscillator A (Top) is a sawtooth core VCO which produces sine, triangle, sawtooth and pulse outputs.
The pulse is a classic variable duty cycle waveform.
The LFO button will insert a negative DC offset to the oscillator’s frequency control. This reduces the range into LFO territories.
The SYNC input hard syncs the oscillator’s waveforms which allows for classic hard sync tones when running at audio rate. In LFO mode the sync input can be used to force waveform resets. Very useful when clocking LFO patterns.
Oscillator B (Bottom) is a triangle core VCO. It has a slightly different set of waveforms to A: sine, triangle, square/sub and a double pulse with variable centre pulse width.
The SUB output can generate a square wave at the oscillator’s fundamental frequency, 1 octave below, or 2 octaves below. The button switches the octave and illuminates to identify the current sub state.
The SYNC input for Oscillator B is a soft sync control which inverts the triangle core’s charge direction on an impulse. This allows for unison tuning with other voices with frequency locking precision.
The SYNC button will choose internal soft syncing of oscillator B to oscillator A, or hard sync of oscillator A to oscillator B. Note that with A hard sync’d to B, the SUB square output is used as the clocking signal which means changing octaves can be used to immediately affect sync ratios.
The LINK button activates a cross normalisation between the oscillators allowing for a single control voltage signals to be used at either 1V/OCT input to control both voices in parallel.
The MULTIPLY output uses the sine waves of both oscillators normalised to the corresponding input jacks. The button alters the affect of the signal inserted at oscillator A’s input. It selects between RING, AM and RECT.
RING is full 4-quadrant amplitude modulation, more commonly referred to as ring modulation.
AM removes any negative voltage in the modulator signal, allowing only positive voltages to control the carrier amplitude.
RECT rectifies any negative voltage, inverting it to positive.
Each amplitude modulation type has it’s own distinct sonic character with differing makeups of sideband frequencies.
The multiplier section can be used with any signals allowing for implementations entirely isolated from the Cš-L’s voices if desired.
The INDEX control utilises two internal VCA’s used to control the amplitudes of branches of each oscillators’ sine wave.
These modulation signals can be routed internally to the opposite oscillator’s FM input, wavefold CV input, wavefold symmetry input, or PWM CV control.
The INDEX pot (and attenuvertable CV input) controls the depth of both oscillators’ sine waves simultaneously for use as a complex cross modulation bus.
The WAVEFOLD faders control the amplitude of each oscillators’ sine waves via exponential response VCAs.
These can be ‘struck’ with external envelopes and pulses for classic west coast plucked sounds.
The fader full left will silence the FINAL output. Centred, it will raise the amplitude to a sine wave and beyond that it will fold.
When not receiving from the modulation bus, the wavefolder symmetry controls receive a DC reference voltage that can be used to bias the sine waves before hitting the wavefolders.
Enabling the modulation bus to the symmetry control will effectively sum a scaled/inverted version of the opposite oscillator’s sine wave with the primary’s, before the wavefolder. This can also be used to mix any external signal with either of the oscillators’, pre wavefolder.
The results are rich and bell-like but without the clangorous a-tonality of FM
With very minimal patching, results can be extremely rich and… complex!
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, 'next working day' shipping is free if the order value is over £150, and £5 otherwise. We can also ship on a 'next working day before 12pm' service, which costs £6 for orders over £150 and £7.50 for orders under £150.
Shipping to mainland EU typically costs 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 DPD, Royal Mail and Parcelforce for the UK, and for international orders it's either DHL, FedEx, UPS, Royal Mail or Parcelforce 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 aim to dispatch the same working day if we get the order before 16:00. 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 the couriers may come to collect a little earlier than scheduled which would also push an order into the next day.
Saturday/Sunday shipping
If you're in the UK and you order before 16:00 on a Friday then we can send something for a Saturday or Sunday delivery with DPD. This is FREE for order values over £350, £5 for order values between £75 and £250, and £7 for order values under £75. (NB: this applies to UK mainland addresses only). Please note that any orders placed after 16:00 on a Friday will ship on the Monday.
International 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.
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.
