A Slew Limiter - also called a "Lag Processor" - is an example of a voltage processor. It produces no signal of its own, but affects those presented to its input.
Slew acts upon rapid changes in a signal, slowing them by an amount determined by manual and/or CV controls. Portamento is a perfect example of slew applied to a control signal: the slew circuit smooths the transitions between the stepped CVs normally used to determine pitch, thus making one note 'glide' to the next rather than jumping abruptly as it would otherwise do.
When applied to an audio signal, a slew limiter acts as a low-pass filter. On the RS-350 the maximum slew rate is about 100mS per volt, so a 1V signal can reach a frequency of just 5Hz before it is attenuated. (This is quite unlike the Slew Limiter in the RS-30 Frequency/Voltage Converter and Envelope Follower, which passes signals of up to 500Hz, or that in the RS-70 Pre-Amp, which allows signals of up to 5kHz to pass unimpeded.)
Unlike the other slew limiters in the RS Integrator, the RS-350 is voltage controlled, allowing you to control the amount of slew (or 'glide') dynamically. This permits a number of interesting possibilities that are not available elsewhere. For example, applying the keyboard CV to the V-IN socket, and an inverted/offset keyboard CV to the CV-IN allows you to decrease the glide time as you play up the keyboard, and increase it as you play down the keyboard. This is a very 'natural' sounding effect, rarely found on electronic synthesisers.
The RS-350 also offers an on/off CV that allows you to determine whether the original or the slewed signal is passed to the output. You can use this to jump between the target voltage and the intermediate, slewed voltage. This creates glissando type effects. You can, of course, use this together with the voltage controlled slew time to generate a wide range of unusual CV signals.
SLEW TIME:
This allows you to adjust the amount of slew applied to the input signal. At its minimum (fully anticlockwise) the slew time is about 100mS per volt. At its maximum (fully clockwise) the slew time is about 2S per volt.
V-IN:
The input accepts any signal in the range 0V - 10V.
CV-IN:
This accepts a CV in the range ±10V. The greater the CV presented, the greater the slew time becomes, thus slowing the transition from one voltage to another. (A negative voltage decreases the slew time.) You can apply a wide range of Gates and CVs to this input to create complex slew profiles.
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
A Slew Limiter - also called a "Lag Processor" - is an example of a voltage processor. It produces no signal of its own, but affects those presented to its input.
Slew acts upon rapid changes in a signal, slowing them by an amount determined by manual and/or CV controls. Portamento is a perfect example of slew applied to a control signal: the slew circuit smooths the transitions between the stepped CVs normally used to determine pitch, thus making one note 'glide' to the next rather than jumping abruptly as it would otherwise do.
When applied to an audio signal, a slew limiter acts as a low-pass filter. On the RS-350 the maximum slew rate is about 100mS per volt, so a 1V signal can reach a frequency of just 5Hz before it is attenuated. (This is quite unlike the Slew Limiter in the RS-30 Frequency/Voltage Converter and Envelope Follower, which passes signals of up to 500Hz, or that in the RS-70 Pre-Amp, which allows signals of up to 5kHz to pass unimpeded.)
Unlike the other slew limiters in the RS Integrator, the RS-350 is voltage controlled, allowing you to control the amount of slew (or 'glide') dynamically. This permits a number of interesting possibilities that are not available elsewhere. For example, applying the keyboard CV to the V-IN socket, and an inverted/offset keyboard CV to the CV-IN allows you to decrease the glide time as you play up the keyboard, and increase it as you play down the keyboard. This is a very 'natural' sounding effect, rarely found on electronic synthesisers.
The RS-350 also offers an on/off CV that allows you to determine whether the original or the slewed signal is passed to the output. You can use this to jump between the target voltage and the intermediate, slewed voltage. This creates glissando type effects. You can, of course, use this together with the voltage controlled slew time to generate a wide range of unusual CV signals.
SLEW TIME:
This allows you to adjust the amount of slew applied to the input signal. At its minimum (fully anticlockwise) the slew time is about 100mS per volt. At its maximum (fully clockwise) the slew time is about 2S per volt.
V-IN:
The input accepts any signal in the range 0V - 10V.
CV-IN:
This accepts a CV in the range ±10V. The greater the CV presented, the greater the slew time becomes, thus slowing the transition from one voltage to another. (A negative voltage decreases the slew time.) You can apply a wide range of Gates and CVs to this input to create complex slew profiles.
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.
