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    Monoprice 8-Channel Audio Mixer with USB
    Product # 615808
    In Stock This item should ship tomorrow (9/19/2018) if ordered within 16 hours 14 minutes
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    Model 615808
    Channels 8
    Inputs 4x XLR / 1/4" TS mic/line level
    4x 1/4" TS line level
    1x stereo RCA line level
    1x 3.5mm TRS line level
    2x USB 1.1
    Outputs 2x 1/4" TS line level
    1x 1/4" TS AUX send
    1x 1/4" TRS headphone level
    1x stereo RCA line level
    Phantom Power +48V on all mic inputs
    Equalizer 2-band ±15dB EQ at 80Hz and 12kHz
    Variable Gain Mic: -20dB ~ +45dB
    Line: -20dB ~ +25dB
    Frequency Response 20 Hz ~ 20 kHz ±1dB
    THD+N (0dBu) < 0.008%
    Signal-to-Noice Ratio Main Outputs: -103dB
    USB, RCA, and Phones Outputs: -90dB
    Aux Send -85dB
    Input Impedance Mic: 2.3 kΩ
    Line: 20 kΩ
    CD/RCA: 24 kΩ
    Input Power 12 VDC
    Maximum Power Consumption 11 watts
    Dimensions 8.7" x 8.3" x 2.7" (220 x 210 x 68 mm)
    Weight 2.2 lbs (0.98kg)

    Support Files:

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    Browse 12 questions Browse 12 questions and 28 answers
    Can this mixer power my blue yeti USB mic from input usb on mixer?
    A shopper on Apr 9, 2017
    BEST ANSWER: As far as I know this mixer uses professional audio cables. I ended buying XLR Male to XLR Female 16AWG Cable. And a Large Diaphragm Condenser Microphone. All I bought from monoprice. If you wanted to use a USB microphone you might have to get a USB to XLR connector.
    Will this mixer allow me to record with three microphones for a podcast?
    A shopper on Jan 8, 2018
    BEST ANSWER: I’ve recorded a couple podcasts with 3 mics on this mixer. Just make sure your levels are right and it’ll sound amazing. Might need to check your mics and see if they need phantom power or not. The mixer will provide the phantom power to the mics if need be. Enjoy.
    do I use regular instrument or speaker cables for the "mono 1/4" TS"for the r and L outputs? Does it matter?
    A shopper on Feb 15, 2018
    BEST ANSWER: yes, it matters. Speaker cables are not noise shielded (the ground wire wrapped around a center wire). Instrument cables are shielded but clumsy for more than a couple of feet. Thick gauge audio cables are best since they are shielded and paired together.
    Is this able to drive the speakers included with PID: 604355 or would I need an amplifier?
    Geoffrey P on Aug 15, 2018
    Monoprice 8-Channel Audio Mixer with USB
    Monoprice 8-Channel Audio Mixer with USB
    Stage Right by Monoprice 130-Watt 8-channel PA System with Two 10-inch Speakers
    Stage Right by Monoprice 130-Watt 8-channel PA System with Two 10-inch Speakers
    BEST ANSWER: Item 604355 (PA) includes a basic board and amp for the speakers. You can feed everything directly into it, versus plugging into a mixer like this one. Unless you were wanting to add more inputs than the PA allowed for, not sure why you would want the mixer in the configuration (save perhaps for outputting to USB from the mixer, which the PA system doesn't provide). That said, I do have both items, and it is a nice little mixer for the price.
    is there any way for me to mute the speakers but still listen through my headphones?
    New User U on Apr 2, 2018
    BEST ANSWER: There is no specific mute switch. You would have to turn down the volumes for the mains and/or aux sends (depending on your system configuration) and keep the headphone volume up in order to listen to the mix without sending it to your amp/speakers.
    Can this product record all 8 tracks simultaneously into a DAW? Been looking for something to record multiple drum mics with that's cheap.
    A shopper on Sep 17, 2018
    BEST ANSWER: Alas, this does not record 8 tracks - you can get away recording two separate tracks by panning the inputs left or right, but that's about it. :-/
    If I get a USB to lightning cable can I use my iPad as the recording device? I want to do a podcast and don't want to spend too much money upfront but want the ability for a 3 mic set up.
    A shopper on Jun 12, 2017
    BEST ANSWER: Interfacing with an iPad I *don't believe* is possible in that method, through the Mac computer it is able to interface with the driver, however the iPad is running iOS which isn't designed for that method of use.
    hi I want to know if I can connect it to Flstudio and use different effects for each channel ? and thank you :D
    New User U on Jan 22, 2018
    BEST ANSWER: So the answer is two parts. The first, yes you can connect this to any software as it is seen as a USB audio device with stereo audio in/out. Part two, no, you can't attach effects to each channel as what is seen by the computer, is just the stereo mix, so you get left and right in/out, with all the channels combined into that one stereo mix, so any effects you apply will be to all channels.
    Are all 8 channels individually available via USB to record to individual tracks in like Audacity or is it only stereo?
    A shopper on Nov 6, 2017
    BEST ANSWER: Thank you for your interest in this USB mixer. The USB will only carry 2 tracks of audio to record. Use the PAN controls set hard left or right for 2 channel operation to record to 2 separate mono tracks.
    hi can I add any effects from my computer (destortion, phase ....) and can I control volume and the other things from the computer ?
    New User U on Oct 29, 2017
    BEST ANSWER: This unit mixes together your audio sources from your computer's line, headphone, or USB and boosts the signal. Your computer will have volume control, but will only have effects if you have separate software installed for that.
    do you have mixing controls on the 3.5mm trs port? I need to be able to turn up/down the bass on a phone/computer.
    Zachary M J on Sep 20, 2017
    BEST ANSWER: Thank you for your interest in this mixer. The CD In 3.5mm does not have bass and treble control, only level. You will need to use the 1/4" inputs on CH 5/6 or 7/8.
    Monoprice 1/8in TRS Male to Two 1/4in TS Male Cable, 5ft
    Monoprice 1/8in TRS Male to Two 1/4in TS Male Cable, 5ft
    What is the output on the power supply? I know it's 12V, but what is the amperage?
    A shopper on Aug 3, 2017
    BEST ANSWER: Thank you for your interest in this USB mixer. The adapter provides 12 VDC, 1.5A of output power. It can accept any AC power input between 100-240 VAC, 50/60 Hz. It has a 1.3mm pin diameter and a 5.0mm barrel diameter, with pin/tip positive. It uses an non-polarized NEMA 1-15 AC plug configuration.
    3.9 / 5.0
    44 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    As with a previous reviewer, I received a noticeable hum on the USB input device, but was able to correct it. By changing the sampling rate on the input to the highest setting, the hum went away completely.

    PROS: Works as expected - both OSX and Win7 detected the input and output devices.

    CONS: N/A
    June 3, 2013
    1khz Hum FIX!
    Ah the Hum, everyone is bitching about the Hum! Monoprice is right, it records JUST FINE over USB. What you (like me) have been trying to do is push audio back out at the same time you record. This causes a nice 1khz hum.


    I have been able to resolve the issue and tested. I thought it was just the mac, but other USB devices seemed to work fine. It seemed to work fine on my desktop, but I don't think I've actually been pushing audio back out at the same time (monitoring the audio over USB) on my linux box.

    I use renoise on the mac and when I turn on the audio out to be the USB, instant hum... I plugged the headphones into the mac directly, and stopped monitoring the audio through the mixer and, amazing NO HUM.

    Monoprice responses are stupid, Its not the power, or anything like that. I've even tested with an independent 12v battery supply, hum is still there. It's only the fact that I was monitoring the audio over usb, while recording.

    Get yourself a virtual loopback cable software and monitor through the mac's audio out.

    PROS: Great interface for a simple setup

    CONS: USB hum at 1khz (and resonance), only on my mac! But I have a solution.
    October 12, 2014
    Very functional, but mediocre quality
    For the price, this mixer is adequate. I was, however, hoping for more out of it.

    From a hardware perspective, the mixer is very light and very compact. The knobs do not all rotate consistently some are more free than others. I'm not a fan of the layout of the board, especially with regards to the bezel running across the top that splits the EQ controls, but it's clear that these choices were made due to space constraints. The mixer does come with a bracket for mounting to a stand It is surprisingly useful when on the road, and I am a huge fan of it. Overall, I do not believe this mixer would stand up to heavy abuse, but its portability makes it easy to take on the road.

    I had three use cases for this device: using it when out gigging, using it when jamming with friends at home, and using it as an audio interface for single track recording. For gigging and jamming, I have no issues with this device as far as sound quality goes. However, the USB I/O is disappointing. When using it with a Linux workstation using the JACK connnection kit, there is a pronounced hum. When using it with the pulseaudio server, the hum is not present. I am unable to isolate settings to resolve this issue. This means that to record with this mixer, I must use a different sound interface. While talking to monoprice support, I learned that it is not recommended to use the USB interface for recording, which begs the question of why it was included in the first place.

    For single-track recording, it turns out that neither this mixer, nor any of the 8-track mixers out on the market would suffice while using their USB or 2TK I/O. This and other comparable devices mix the external audio with the instrument input and then send that mix out. This is the opposite of what you need for single-track recording you want the instrument sent out before being mixed so that your new track is isolated. It is not possible to alter this behavior. My workaround is to record the instrument using the AUX bus and monitor the entire mix using the 2TK-IN. This has the disadvantage of not using the USB interface (which is unusuable due to the hum in any case).

    All in all I give this device an 8 out of 10. I reduced the score due to the build quality with regards to the layout and feel of the knobs, and due to the issues with the USB audio. Had I known about these quirks ahead of time, I would still choose to purchase this device.

    PROS: Fantastic price point
    Adequate sound quality
    Very portable (the stand mount is surprisingly helpful!)

    CONS: Mediocre build quality
    Hum with USB I/O
    June 21, 2013
    Decent Unit - No great for USB Recording multiple tracks
    I am a electronics guy/computer guy/guitarist who likes to record multi-track recordings at home for personal use. Before buying this unit, I have used multiple other USB audio input devices and bought this because I wanted an adjustable clean USB recording input and the ability to add in all my inputs via a single control unit (and the phantom power for my mics kicks butt).

    USB HUM:
    First let me say that every one of the devices I've used for recording hum when connected to my desktop. However, using my Macbook Pro all my other recording devices get zero hum from power interference, except for this mixer, it still gives me the hum.

    With all my other USB audio input devices (Line 6 HD500, POD X3 Live, POD Studio UX2 and Digitech RP-350) I can record one track and listen to it while I add any additional tracks without issue. With this mixer, in order to hear my first track while recording the next track, it plays back the existing track on top of the new track into the new track. Basically re-recording the previous tracks in the background of the new track. This makes it impossible for recording as it muddies up the recording. This looks to be because you have to press the 2TK to MAIN buttons to hear the input and output at the same time, but it doesn't understand that you don't want to re-record what the USB is playing back.

    Beyond that it's really nice to have my drum machine, MICs, and amplifies all connected and mixable with this board, but I am unable to usefully record with it.

    Cool mixer, not really great for recording. Probably would NOT replace with the same unit if this one dies.

    PROS: - Affordable mixer
    - Phantom power
    - Easy USB recording
    - Stand Mountable

    CONS: - USB Hum (even using separated power and laptop)
    - Pretty useless for recording multiple separate tracks (see review)
    September 25, 2013
    A Bit Frustrated, However Great Product
    Here's the thing: I'm not rating a 10 because it's not a perfect interface and I didn't rate 9 because I'm unsure if the con I'm experiencing is due to the product itself or not. I got my laptop today (final piece of home-recording studio) and I was a little disappointed at the results of my recording. I was super hyped to be able to finally record music with crystal-clear audio (as evident by plugging in my headphones directly to the mixer and hearing immediate reception of my voice through the mics). However, after testing the audio in recording to my laptop, I discovered that A) it did not record the two microphones in separate audio tracks and B) the recorded audio did not sound nearly as clear as it did through the headphones. I know that this machine must be capable of producing the clarity I'm hearing the my headphones because it is all working through the machine, but I am frustrated as to why the recorded result is on par as if I had recorded with my phone. I am also frustrated with the fact that the audio tracks aren't separated, but to a much lesser extent (I could record music happy with this still in effect). Now I am not sure if this lack of good quality is due to the program, the product, or something else, but as I could not find any solution as the what the issue is at all, I can only assume it has something to do with the machine because it's absolutely not a professional product, however it has potential to do its job well. If I figure out this issue (I'm hoping maybe a Monoprice rep could help me figure it out because I can't find squat anywhere else on the Internet) then this product would make my year and gladly recommend it. Until then, a little frustrated and yearning to record music of a high audio quality. After all, the purpose of me spending a total of $200 of audio equipment at Monoprice was for me to be able to record much higher audio quality. Please help!

    PROS: -Supposed "buzzing" by other reviewers is not present (Maybe was fixed finally?)

    -Allows for a plethora of different options of audio input finding the levels and sound you want

    -Very dynamic piece of hardware

    CONS: -Recorded audio quality sounds much lower when played back from laptop in contrast to how it sounds when headphones plugged directly into device (?)

    -Doesn't record in separate audio tracks in Audacity Audio Program
    August 13, 2015
    Great little mixer, Poor implementation of USB IO.
    When I pulled this mixer out of the box, I was impressed with it's size and the complement of IO available. I planned to use it to bring in the audio from my rack of studio gear and a few computers and route them to some monitors. In this case, the mixer would have been perfect. However, my other use was for Voice Chat, IE Skype and other voip services.
    Unfortunately, the USB IO on this mixer automatically routes it's output to the main mix, as well as routing itself back in as an input source. This has been discussed by other reviewers.
    Unfortunately, just monitoring from another audio source, which was suggested by another reviewer isn't a good enough solution and defeats the purpose of purchasing a mixer that is designed to consolidate audio sources into 1 convenient board for ease of control.
    So, with some regret, I had to generate an RMA and return it.
    If all you want to do is combine audio sources for live or recording purposes, this mixer would do the trick. It's compact, built well, and has everything you need.
    However, if you really need to take advantage of simultaneous Bi-directional USB IO, this mixer does not properly implement this feature without generating a feedback loop. I urge the powers that be to consider revving this model to include a switch that would prevent the output of the USB signal to be sent back through the mixer as an input source, while still allowing it to be monitored through headphones or main outs.

    PROS: Compact, light, well built, A great little mixer for basic audio tasks.

    CONS: No way to take full advantage of simultaneous bi-directional USB IO without feedback loop.
    February 29, 2016
    It's compact and light, yet it's not missing the features most people will need. It sounds clean. Be sure to have the 2 track/main button pushed in or you won't hear anything but the 2 track input.
    May 22, 2017
    1 year ago
    Hum Fix update 1
    So after playing with it, I was able to get the 1khz hum to go away, but it came back.

    The majority of the failure comes from the Mac, the mac doesn't allow you to control the input volume from this device (at the computer). Therefore making a almost invisible hum completely noticeable, by using full output volume. If you can control the input volume (at the computer) the hum would be gone. Since you can turn the output levels (main, and input 1 level, and input 1 mic in on the mixer) up way beyond what the Mac can handle. The problem is you can't lower the input (level) at the computer(s internal mixer) itself.

    This is probably why I never noticed the hum on my linux computers, because I could control the volume at the computer side, and turned up the outputs which compensated for any digital noise.

    The noise is exacerbated by putting a loopback over USB to monitor the output, but turning it off is not the only solution.

    It is NOT a power noise issue, tested with a battery supply, and with UPSes. Power noises are if you get a 60hz hum, not a 1khz hum. This is a DAC issue, but shouldn't be as noticeable.

    I have only noticed the issue on my MacBook Air.

    I'm going to keep testing a bit. I love monoprice products, sometimes they are cheap for a reason. So if I discover any other solutions I will try to post them, right now the only solution I have is to use a throughput device to lower the volume at the computer side, right now trying to see if I can get soundflower to handle this.
    October 12, 2014
    USB Hum makes this unusable
    Was hoping to use the mixer via USB, connected to a Mac, but because of the high-pitched hum, I cannot use it. I've had this longer than a year, so it's unlikely I can return or exchange itand it seems that everyone has the same problem, so I'm not sure what exchanging would accomplish. But as it is, I'm an unhappy customer with this device.

    PROS: Works great as a simple mixer using XLR cables.

    CONS: After a long time not trying it, finally tried using USB connection. High-pitched hum makes this impossible to use, and basically worthless when connected via USB.
    July 30, 2014
    Sorely Dissapointed
    Let me start by saying I love Monoprice and (most) of its products. However, this mixer is just disappointing. Like the other reviewers, I get a horrible humming noise in all the recordings it produces. Unfortunately, I wasn't able to make this go away through tweaking settings or changing the output source. I had planned to use this as a replacement for the M-Audio FastTrack I've been using to record guitar with, due to all the extra features this mixer has, however, I need a clean track to be produced, and this thing just doesn't cut it.

    Support would be greatly appreciated, but I honestly don't know what else I can do to fix this issue.
    June 9, 2013