Description
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
Shipping policy
At Parkway, we pride ourselves in our extreme attention to detail in our final inspection process prior to shipping you your gear.
Our professional techs and shipping department ensure that your instrument and/or gear will arrive to you in the expected condition and playing exceptionally, right out of the box. We guarantee it.
Brand New Gear
We offer FREE domestic shipping on most of our brand new instruments and gear within the Continental US. Please note that in the event of a return on items with free shipping, the original shipping cost, in addition to the return shipping cost, will be deducted from your refund. In the event of a defective or damaged product, we are happy to cover all shipping costs incurred.
Used & Vintage Gear
We offer flat rate shipping options for all of our used & vintage gear. Our goal here is to simply cover the cost of getting the item to you and we appreciate your understanding.
Local Pickup Only
Although you have the option for local pickup on all of our products, there are some items that we must mark as 'Local Pickup' only. These items include products that are just too large, or certain vintage gear that we deem to be too fragile.
International Shipping
Unfortunately we are not offering international shipping at this time.
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