Reliably mix your Eurorack signals and output them to TRS line level. The 4ms Listen 4 Quarters Mixer Module is an extremely simple but versatile mixer module. It allows up to four channels to mixed down and sent out via TRS line level to any equipment you can think of. It's ideal for sending to amplifiers, effects units like guitar pedals, and your audio interface for easy recording. It features four channels, two have mono inputs with pan controls and the other two are stereo channels with dual inputs. This utility module features everything you need to mix your modular synth and can even be daisy chained with other Listen 4 Mixers to increase your channel count.
Reliable Mixing
Four channels of stereo mixing, with TRS line level jack outputs, as well as a headphone output. The Listen 4 Quarters module is an extremely useful utility module. Out of the four channels, two have mono inputs with pan controls and the other two are stereo channels with dual inputs. This provides optimised compatibility with both stereo and mono. If four channels are not enough then you can daisy chain multiple Listen modules.
The Listen 4 Quarters features LEDs to indicate clipping, anti-pop, and excessively low noise. If you rely on multiple ins and outs as part of your Eurorack then trust in 4ms to deliver and distribute your signal perfectly, every time.
Features
- Four channel Eurorack mixer
- TRS Line level output
- Headphone output
- Trim pot for clipping light level
- Daisy Chaining
- Anti-pop circuitry
- Specifications
- 12HP Eurorack format module
- 1.13” (28.7mm) maximum depth (includes power cable)
- 10-pin Eurorack power header
Power consumption
- Maximum values without using headphones jack:
- Main outputs shorted to ground, headphones jack not used, maximum signal levels on all channels
- +12V: 107mA
- -12V: 101mA
- Maximum values in worst-case conditions:
- All outputs including headphone jack shorted to ground, maximum signal levels on all channels
- +12V: 290mA
- -12V: 101mA
Main outputs
- Output type: balanced zero-impedance, compensated for electrolytic capacitor distortion
- Frequency Response: +/-0.2dB max deviation, 10Hz - 20kHz
- Maximum output level: 17.1V peak-to-peak (+17.8dBu)
- Maximum gain of channels 1 and 2: -4.4dB (hard-panned), -9.1dB (center-panned)
- Maximum gain of channels 3 and 4, and INS header: -7.5dB
Headphones jack
- Frequency response: -0.2dB at 20Hz; 0dB at 100Hz to 20kHz (driving 32Ω headphones)
- Maximum voltage (peak-to-peak): 5Vpp
- Module size:
- 12 HP Eurorack format module
- 1.13" (28.7mm) maximum depth with power cable
- Power consumption:
- Maximum values without using headphones jack: Main outputs shorted to ground,
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
Reliably mix your Eurorack signals and output them to TRS line level. The 4ms Listen 4 Quarters Mixer Module is an extremely simple but versatile mixer module. It allows up to four channels to mixed down and sent out via TRS line level to any equipment you can think of. It's ideal for sending to amplifiers, effects units like guitar pedals, and your audio interface for easy recording. It features four channels, two have mono inputs with pan controls and the other two are stereo channels with dual inputs. This utility module features everything you need to mix your modular synth and can even be daisy chained with other Listen 4 Mixers to increase your channel count.
Reliable Mixing
Four channels of stereo mixing, with TRS line level jack outputs, as well as a headphone output. The Listen 4 Quarters module is an extremely useful utility module. Out of the four channels, two have mono inputs with pan controls and the other two are stereo channels with dual inputs. This provides optimised compatibility with both stereo and mono. If four channels are not enough then you can daisy chain multiple Listen modules.
The Listen 4 Quarters features LEDs to indicate clipping, anti-pop, and excessively low noise. If you rely on multiple ins and outs as part of your Eurorack then trust in 4ms to deliver and distribute your signal perfectly, every time.
Features
- Four channel Eurorack mixer
- TRS Line level output
- Headphone output
- Trim pot for clipping light level
- Daisy Chaining
- Anti-pop circuitry
- Specifications
- 12HP Eurorack format module
- 1.13” (28.7mm) maximum depth (includes power cable)
- 10-pin Eurorack power header
Power consumption
- Maximum values without using headphones jack:
- Main outputs shorted to ground, headphones jack not used, maximum signal levels on all channels
- +12V: 107mA
- -12V: 101mA
- Maximum values in worst-case conditions:
- All outputs including headphone jack shorted to ground, maximum signal levels on all channels
- +12V: 290mA
- -12V: 101mA
Main outputs
- Output type: balanced zero-impedance, compensated for electrolytic capacitor distortion
- Frequency Response: +/-0.2dB max deviation, 10Hz - 20kHz
- Maximum output level: 17.1V peak-to-peak (+17.8dBu)
- Maximum gain of channels 1 and 2: -4.4dB (hard-panned), -9.1dB (center-panned)
- Maximum gain of channels 3 and 4, and INS header: -7.5dB
Headphones jack
- Frequency response: -0.2dB at 20Hz; 0dB at 100Hz to 20kHz (driving 32Ω headphones)
- Maximum voltage (peak-to-peak): 5Vpp
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.
