Send & Receive in Stereo
Xchangr is designed for low noise exchange of audio signals between high-fidelity stereo pedals and eurorack systems. The module features three stereo channels—two sends and one receive—each with switchable 12 or 18 dB boost/cut to interface with digital pedals and line-level processors.
Signal Interchange
The availability of quality stereo effects in pedal format still outnumbers those available in eurorack format, and thus processing eurorack-level signals with them is often desired. This requires proper attenuation and amplification, especially as the inputs of these digital effects can be unforgiving if the signals are too hot, have excess noise, or a slight DC offset.
Xchangr is meant to facilitate this signal interchange with its overall simplicity and purposely designed circuitry. Its three separate sections together exchange stereo audio with external processors at proper levels and with sonic transparency.
Level Scaling
The upper two SND sections are identical, and both apply attenuation to pairs of discrete inputs (3.5 mm) to send into stereo pedals and line-level processors. Each is equipped with a two-position switch to select the amount of attenuation, either -12 dB or -18 dB. The right side input is normalled to the left, so if no plug is present, the right SND output (1/4-inch) will copy the left.
The lower RCV section applies amplification to its pair of discrete inputs (1/4-inch) to bring external audio back up to eurorack levels. It is also equipped with a switch to select the amount of amplification, either +12 dB or +18 dB. The right side input is normalled to the left, so if no plug is present, the right RCV output (3.5 mm) will copy the left.
When interfacing with a stereo pedal, this leaves an extra SND pair on the module, which can be used for parallel processing or as an additional line output to a mixer, interface, or amplifier.
±18 dB is suggested for high-fidelity pedals, and ±12 dB for rackmount or line-level processors.
Audio Fidelity
Xchangr’s connectons are AC-coupled specifically for audio signals. This means control voltages are not meant to pass through the module, and any DC offsets will be removed.
The inputs of the two SND sections use first order low pass filters just above 25 kHz to attenuate any high-frequency noise in the signals like EMI (Electromagnetic Interference). The signals also run through 1.5 Hz high pass filters to remove any DC offset just prior to being output.
The inputs of the RCV section employ 5 Hz rumble filters to reduce any unwanted low frequency noise prior to being amplified back up to eurorack-level.
The combined filtering sections, along with low-noise buffering, allow only the desired parts of the signal to be processed and returned. The result is clean and undistorted external stereo effects processing.
All 1/4-inch inputs and outputs are TS unbalanced mono connections.
Technical Specs
Width: 8 HP
Depth: 1.49 in (38 mm)
Weight: 3.4 oz (97 g)
SNR: > 109 dB
Power: +12 V 11 mA, -12 V 11 mA
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
Send & Receive in Stereo
Xchangr is designed for low noise exchange of audio signals between high-fidelity stereo pedals and eurorack systems. The module features three stereo channels—two sends and one receive—each with switchable 12 or 18 dB boost/cut to interface with digital pedals and line-level processors.
Signal Interchange
The availability of quality stereo effects in pedal format still outnumbers those available in eurorack format, and thus processing eurorack-level signals with them is often desired. This requires proper attenuation and amplification, especially as the inputs of these digital effects can be unforgiving if the signals are too hot, have excess noise, or a slight DC offset.
Xchangr is meant to facilitate this signal interchange with its overall simplicity and purposely designed circuitry. Its three separate sections together exchange stereo audio with external processors at proper levels and with sonic transparency.
Level Scaling
The upper two SND sections are identical, and both apply attenuation to pairs of discrete inputs (3.5 mm) to send into stereo pedals and line-level processors. Each is equipped with a two-position switch to select the amount of attenuation, either -12 dB or -18 dB. The right side input is normalled to the left, so if no plug is present, the right SND output (1/4-inch) will copy the left.
The lower RCV section applies amplification to its pair of discrete inputs (1/4-inch) to bring external audio back up to eurorack levels. It is also equipped with a switch to select the amount of amplification, either +12 dB or +18 dB. The right side input is normalled to the left, so if no plug is present, the right RCV output (3.5 mm) will copy the left.
When interfacing with a stereo pedal, this leaves an extra SND pair on the module, which can be used for parallel processing or as an additional line output to a mixer, interface, or amplifier.
±18 dB is suggested for high-fidelity pedals, and ±12 dB for rackmount or line-level processors.
Audio Fidelity
Xchangr’s connectons are AC-coupled specifically for audio signals. This means control voltages are not meant to pass through the module, and any DC offsets will be removed.
The inputs of the two SND sections use first order low pass filters just above 25 kHz to attenuate any high-frequency noise in the signals like EMI (Electromagnetic Interference). The signals also run through 1.5 Hz high pass filters to remove any DC offset just prior to being output.
The inputs of the RCV section employ 5 Hz rumble filters to reduce any unwanted low frequency noise prior to being amplified back up to eurorack-level.
The combined filtering sections, along with low-noise buffering, allow only the desired parts of the signal to be processed and returned. The result is clean and undistorted external stereo effects processing.
All 1/4-inch inputs and outputs are TS unbalanced mono connections.
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.
