A-132-8 is an octal VCA and primarily planned for polyphonic applications. The module contains four VCA pairs. The amplification range for each VCA is 0 ... 1. 0V CV corresponds to amplification 0 (full suppression), +10V CV to amplification 1. Each pair includes two daisy-chained VCAs. One VCA has a linear control scale, for the second VCA linear or exponential control scale can be chosen by means of jumpers. We decided to provide two VCAs for each voice because usually one VCA is required for loudness envelope and a second one for velocity (or other functions like individual voltage-controlled loudness of each voice, amplitude modulation and so on). All VCAs are DC coupled and can be used in special applications also for the processing of control voltages.
These controls and in/outputs are available:
- Default Gain 1 (GL)
- Default Gain 2 (GX)
- CV Inputs for the four VCAs #1
- CV Inputs for the four VCAs #2
- four Audio Inputs
- four Audio Outputs
- Audio Sum Output
The module features two Default Gain controls (GL, GX), that enable the opening of the first four VCAs (L) and/or second four VCAs (X). For this the controls GL and GX generate two internal control voltages 0...+10V which are connected to the switching contacts of the sockets 1L...4L (control GL) and 1X...4X (control GX). As long as no patch cable is inserted into the socket in question the internal default control voltage (GL or GX) is used to control the corresponding VCA. This is necessary when the VCA in question is not in use (i.e. no external CV available). Otherwise the VCA would close and there would be no output signal even if the other VCA in the chain is open. The controls GL and GX are also useful for testing polyphonic patches (e.g. for tuning the VCOs).
As soon as a patch cable is inserted into a CV input socket the corresponding internal default control voltage (CL or CX knob) is no longer used to control the VCA in question. Rather the external CV patched to the CV input socket does now control the level of the VCA in question.
The sketch below shows the internal structure of the module.
Factory settings:
The trimming potentiometers of the CV inputs are adjusted for a CV range 0...+10V - matching to the polyphonic ADSR module A-141-4. But the sensitivity of each CV input can be adjusted by means of a trimming potentiometer to adapt the CVs even to other control voltage ranges.
The jumpers for the second VCAs are installed for linear control scale (i.e. also the VCAs labelled "X" are linear VCAs from the factory).
Application:
polyphonic patches with two VCAs per voice.
The following document shows the positions and functions of the jumpers and trimming potentiometers of the module: A132_8_trimming_potentiometers_and_jumpers.pdf
The following document contains basic information about the internal pre-wiring of polyphonic modules: A100_internal_polyphonic_wiring.pdf
Technical note:
Due to the amplification tolerances of the VCAs (up to about 10%) the output loudness (controlled by the knobs GL/GX and the CV inputs) is not exactly the same for each channel. If an exact ganging of the loudness is essential the module is not suitable. Please keep in mind that even four musicians will never play exactly the same loudness.
Width: 8 HP / 40.3 mm
Depth: 45 mm measured from the rear side of the front panel)
Current: +40mA (+12V) / -40mA (-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
A-132-8 is an octal VCA and primarily planned for polyphonic applications. The module contains four VCA pairs. The amplification range for each VCA is 0 ... 1. 0V CV corresponds to amplification 0 (full suppression), +10V CV to amplification 1. Each pair includes two daisy-chained VCAs. One VCA has a linear control scale, for the second VCA linear or exponential control scale can be chosen by means of jumpers. We decided to provide two VCAs for each voice because usually one VCA is required for loudness envelope and a second one for velocity (or other functions like individual voltage-controlled loudness of each voice, amplitude modulation and so on). All VCAs are DC coupled and can be used in special applications also for the processing of control voltages.
These controls and in/outputs are available:
- Default Gain 1 (GL)
- Default Gain 2 (GX)
- CV Inputs for the four VCAs #1
- CV Inputs for the four VCAs #2
- four Audio Inputs
- four Audio Outputs
- Audio Sum Output
The module features two Default Gain controls (GL, GX), that enable the opening of the first four VCAs (L) and/or second four VCAs (X). For this the controls GL and GX generate two internal control voltages 0...+10V which are connected to the switching contacts of the sockets 1L...4L (control GL) and 1X...4X (control GX). As long as no patch cable is inserted into the socket in question the internal default control voltage (GL or GX) is used to control the corresponding VCA. This is necessary when the VCA in question is not in use (i.e. no external CV available). Otherwise the VCA would close and there would be no output signal even if the other VCA in the chain is open. The controls GL and GX are also useful for testing polyphonic patches (e.g. for tuning the VCOs).
As soon as a patch cable is inserted into a CV input socket the corresponding internal default control voltage (CL or CX knob) is no longer used to control the VCA in question. Rather the external CV patched to the CV input socket does now control the level of the VCA in question.
The sketch below shows the internal structure of the module.
Factory settings:
The trimming potentiometers of the CV inputs are adjusted for a CV range 0...+10V - matching to the polyphonic ADSR module A-141-4. But the sensitivity of each CV input can be adjusted by means of a trimming potentiometer to adapt the CVs even to other control voltage ranges.
The jumpers for the second VCAs are installed for linear control scale (i.e. also the VCAs labelled "X" are linear VCAs from the factory).
Application:
polyphonic patches with two VCAs per voice.
The following document shows the positions and functions of the jumpers and trimming potentiometers of the module: A132_8_trimming_potentiometers_and_jumpers.pdf
The following document contains basic information about the internal pre-wiring of polyphonic modules: A100_internal_polyphonic_wiring.pdf
Technical note:
Due to the amplification tolerances of the VCAs (up to about 10%) the output loudness (controlled by the knobs GL/GX and the CV inputs) is not exactly the same for each channel. If an exact ganging of the loudness is essential the module is not suitable. Please keep in mind that even four musicians will never play exactly the same loudness.
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.
