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Doepfer A-173-1/2 Micro CV/Gate Keyboard Eurorack Module

Doepfer

£171.00
In stock.
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Shipping info

A-173-1/2 is a module combo that is used to generate a manually controlled 1V/Octave CV signal and up to 15 manually controlled gate/trigger signals. Typical applications are the transposition of a sequence by means of the CV output (without the need of an external keyboard and CV interface) and the manual generation of gate signals for start, stop, envelope generator triggering and other trigger tasks.

A-173-1 is the transmitter module and is made of a 1 ½ octaves micro keyboard and a three-position octave switch.

A-173-2 is the receiver module and generates several gate/trigger signals and a 1V/Oct. CV signal. The upper section of the module is used for the gates which are controlled by the corresponding buttons of the A-173-1. Each output can be programmed as gate (pressing/releasing the corresponding key turns the gate on/off) or toggle (pressing the corresponding key changes the state). The state of each output is displayed by an LED. To program the mode of each gate output the button "Learn Trigs" is used. While this button is operated the LEDs show the mode of each output (LED off = gate mode, LED on = toggle mode). By operation the corresponding key of the transmitter module A-173-1 the state of each output can be changed.
The lower section of the module is used the generate a 1V/Oct. CV signal and gate signal in the usual way.
By means of the "Learn CV" feature of the A-173-2 (i.e. defining the key for 0V CV) a few buttons can be separated from the CV generation section so that these buttons only control gate/trigger outputs without affecting the CV. That way e.g. start/stop or other triggers may become indepent from the CV section. For example it's possible to separate the lower five buttons (G to B) from the CV generation and use these buttons only for the generation of gate signals. For this the lower C has to be defined as lowest key for the CV generation. One could name this function also "keyboard splitting". To program the split position one has to press down the button "Learn CV" and operate the key of the transmitter module A-173-1 which should be used as "split key".
All settings (gate/toggle assignments, split point) are stored non-volatile in the module.

The modules communicate via standard midi note on/off messages and are connected internally by means of a simple two-wire cable. The cable that comes with the modules is about 30 cm long. That way the modules can be mounted at different positions within the case. Both modules are equipped with a pin header with two pins (A-173-1 = JP4, A-173-2 = JP5). The cable has to be installed with the same orientation on both connectors (e.g. black = top, red = bottom). In addition a GND sign (an upside down "T") and the term MID (abbreviation for Midi) is printed next to each connector. GND has to be connected to GND and MID to MID. In case of a wrong connection the communcation between 173-1 and A-173-2 will not work. But nothing can be damaged.

Width: 2 x 6 HP / 2 x 30.1 mm Depth: 45 mm (measured from the rear side of the front panel) Current: +100 mA (+12V) / -10 mA (-12V) Note: the specified current @+12V is valid for the situation with all LEDs "on"

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-173-1/2 is a module combo that is used to generate a manually controlled 1V/Octave CV signal and up to 15 manually controlled gate/trigger signals. Typical applications are the transposition of a sequence by means of the CV output (without the need of an external keyboard and CV interface) and the manual generation of gate signals for start, stop, envelope generator triggering and other trigger tasks.

A-173-1 is the transmitter module and is made of a 1 ½ octaves micro keyboard and a three-position octave switch.

A-173-2 is the receiver module and generates several gate/trigger signals and a 1V/Oct. CV signal. The upper section of the module is used for the gates which are controlled by the corresponding buttons of the A-173-1. Each output can be programmed as gate (pressing/releasing the corresponding key turns the gate on/off) or toggle (pressing the corresponding key changes the state). The state of each output is displayed by an LED. To program the mode of each gate output the button "Learn Trigs" is used. While this button is operated the LEDs show the mode of each output (LED off = gate mode, LED on = toggle mode). By operation the corresponding key of the transmitter module A-173-1 the state of each output can be changed.
The lower section of the module is used the generate a 1V/Oct. CV signal and gate signal in the usual way.
By means of the "Learn CV" feature of the A-173-2 (i.e. defining the key for 0V CV) a few buttons can be separated from the CV generation section so that these buttons only control gate/trigger outputs without affecting the CV. That way e.g. start/stop or other triggers may become indepent from the CV section. For example it's possible to separate the lower five buttons (G to B) from the CV generation and use these buttons only for the generation of gate signals. For this the lower C has to be defined as lowest key for the CV generation. One could name this function also "keyboard splitting". To program the split position one has to press down the button "Learn CV" and operate the key of the transmitter module A-173-1 which should be used as "split key".
All settings (gate/toggle assignments, split point) are stored non-volatile in the module.

The modules communicate via standard midi note on/off messages and are connected internally by means of a simple two-wire cable. The cable that comes with the modules is about 30 cm long. That way the modules can be mounted at different positions within the case. Both modules are equipped with a pin header with two pins (A-173-1 = JP4, A-173-2 = JP5). The cable has to be installed with the same orientation on both connectors (e.g. black = top, red = bottom). In addition a GND sign (an upside down "T") and the term MID (abbreviation for Midi) is printed next to each connector. GND has to be connected to GND and MID to MID. In case of a wrong connection the communcation between 173-1 and A-173-2 will not work. But nothing can be damaged.

Technical Specs

Width: 2 x 6 HP / 2 x 30.1 mm Depth: 45 mm (measured from the rear side of the front panel) Current: +100 mA (+12V) / -10 mA (-12V) Note: the specified current @+12V is valid for the situation with all LEDs "on"

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.