Module A-111-3 is an extremely space-saving precision VCO/LFO with a 4HP panel only. Essentially it's the same basic circuit as the A-111-2 but with reduced features:
triangle core
fully analog design
min. 15 octaves pitch range in each mode (VCO/LFO):
VCO mode: typ. 0.5 Hz - 20 kHz (with appropriate external CV)
LFO mode: typ. 0.001 Hz - 40 Hz (with appropriate external CV)
range switch so that the module can be used as VCO or LFO (in LFO mode all frequencies about 1/500 compared to VCO mode)
about 24 octaves total in both modes (typ. 0.001 Hz - 20kHz)
perfect 1V/octave tracking over min. 10 octaves (typ. 16Hz - 16kHz in VCO mode)
exponential frequency section:
Tune control
selectable tune control range by means of an internal jumper: about 0.5 / 2 / 10 octaves
manual VCO tune range (with jumper pos. 1, without external CV): about 16 Hz- 20kHz
manual VCO tune range (with jumper pos. 2, without external CV): about 16 Hz- 70Hz
manual VCO tune range (without jumper, without external CV): about 16 Hz- 22Hz
if desired the min. frequency can be adjusted by the user (frequency offset trimming potentiometer, see note below)
the corresponding frequencies in LFO mode are about 1/500 lower, the max. frequency in LFO mode is about 40Hz
1V/octave CV input "1V"
exponential frequency modulation XM input with attenuator
the XM input socket is normalled to a small positive voltage so that the XM control works as fine tune control when exponential FM is not in use. As a logarithmic potentiometer for finer resolution in the lower range is used, also the fine control is exponential
(thank's to Václav of Bastl Instruments for this tip at Superbooth in Berlin)
access to internal bus CV (via jumper, optional, please remove the bus jumper if this feature is not used to avoid unwanted frequency modulation as then the unused CV line of the bus works as a kind of antenna)
linear frequency section:
linear frequency modulation input LM (without attenuator), DC coupled
Pulsewidth section for rectangle output:
Manual pulsewidth control PW, adjusts pulsewidth from 0% (output = fixed at "low" state) up to 100% (output fixed at "high" state)
Pulsewidth modulation input PM (without attenuator), about 5Vpp required for full PW range
Sync input SY (selectable hard or soft sync via internal jumper, CEM3340 hard sync type)
Waveform outputs:
Sawtooth, rising edge, output level ~ 10Vpp (voltage range ~ 0 ... +10V, can be modified for ~ -5V...+5V, see A111_3_trimming_potentiometers_and_jumpers.pdf for details)
Rectangle (controlled from pulsewidth section), output level ~ 10Vpp (voltage range ~ 0 ... +10V)
Triangle, output level ~ 10Vpp (voltage range ~ -5V ... +5V, DC offset can be adjusted also also to ~ 0 ... +10V, see A111_3_trimming_potentiometers_and_jumpers.pdf for details)
Nearly "perfect" waveforms
LED (for display in LFO mode)
only 4HP panel
A-111-3 is also the ideal companion for the subharmonic generator A-113.
The following document shows the positions and functions of the jumpers and trimming potentiometers of the module: A111_3_trimming_potentiometers_and_jumpers.pdf
Technical remarks:
The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection ! I.e. the 1V/Oct socket is not normalled to the bus CV. This allows e.g. transposing sequence CV (applied to the socket 1V/Oct) by the bus CV (e.g. connected to the CV output of a Midi-to-CV interface).
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
Module A-111-3 is an extremely space-saving precision VCO/LFO with a 4HP panel only. Essentially it's the same basic circuit as the A-111-2 but with reduced features:
triangle core
fully analog design
min. 15 octaves pitch range in each mode (VCO/LFO):
VCO mode: typ. 0.5 Hz - 20 kHz (with appropriate external CV)
LFO mode: typ. 0.001 Hz - 40 Hz (with appropriate external CV)
range switch so that the module can be used as VCO or LFO (in LFO mode all frequencies about 1/500 compared to VCO mode)
about 24 octaves total in both modes (typ. 0.001 Hz - 20kHz)
perfect 1V/octave tracking over min. 10 octaves (typ. 16Hz - 16kHz in VCO mode)
exponential frequency section:
Tune control
selectable tune control range by means of an internal jumper: about 0.5 / 2 / 10 octaves
manual VCO tune range (with jumper pos. 1, without external CV): about 16 Hz- 20kHz
manual VCO tune range (with jumper pos. 2, without external CV): about 16 Hz- 70Hz
manual VCO tune range (without jumper, without external CV): about 16 Hz- 22Hz
if desired the min. frequency can be adjusted by the user (frequency offset trimming potentiometer, see note below)
the corresponding frequencies in LFO mode are about 1/500 lower, the max. frequency in LFO mode is about 40Hz
1V/octave CV input "1V"
exponential frequency modulation XM input with attenuator
the XM input socket is normalled to a small positive voltage so that the XM control works as fine tune control when exponential FM is not in use. As a logarithmic potentiometer for finer resolution in the lower range is used, also the fine control is exponential
(thank's to Václav of Bastl Instruments for this tip at Superbooth in Berlin)
access to internal bus CV (via jumper, optional, please remove the bus jumper if this feature is not used to avoid unwanted frequency modulation as then the unused CV line of the bus works as a kind of antenna)
linear frequency section:
linear frequency modulation input LM (without attenuator), DC coupled
Pulsewidth section for rectangle output:
Manual pulsewidth control PW, adjusts pulsewidth from 0% (output = fixed at "low" state) up to 100% (output fixed at "high" state)
Pulsewidth modulation input PM (without attenuator), about 5Vpp required for full PW range
Sync input SY (selectable hard or soft sync via internal jumper, CEM3340 hard sync type)
Waveform outputs:
Sawtooth, rising edge, output level ~ 10Vpp (voltage range ~ 0 ... +10V, can be modified for ~ -5V...+5V, see A111_3_trimming_potentiometers_and_jumpers.pdf for details)
Rectangle (controlled from pulsewidth section), output level ~ 10Vpp (voltage range ~ 0 ... +10V)
Triangle, output level ~ 10Vpp (voltage range ~ -5V ... +5V, DC offset can be adjusted also also to ~ 0 ... +10V, see A111_3_trimming_potentiometers_and_jumpers.pdf for details)
Nearly "perfect" waveforms
LED (for display in LFO mode)
only 4HP panel
A-111-3 is also the ideal companion for the subharmonic generator A-113.
The following document shows the positions and functions of the jumpers and trimming potentiometers of the module: A111_3_trimming_potentiometers_and_jumpers.pdf
Technical remarks:
The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection ! I.e. the 1V/Oct socket is not normalled to the bus CV. This allows e.g. transposing sequence CV (applied to the socket 1V/Oct) by the bus CV (e.g. connected to the CV output of a Midi-to-CV interface).
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.
