No one on KZfaq comes close to the quality, depth and clarity of your gear reviews and demos. I've recently bought a mix pre 6ii to help me improve my video/audio quality and your videos have been tremendously helpful to me! I seem to have no trouble getting a great recording of most instruments but I've found dialogue recording and editing to always be challenging. Many thanks, Michael :)

Your BEST review ever. In truth ALL your reviews are "perfect", it's just that for me this is the most relevant! Big THANKS for making this.

*Correction*: The MixPre pre-roll time also decreases when you record at higher sample rates (5 seconds at 96kHz & 2 seconds at 192kHz) Jump ahead: 00:11 Summary 01:03 How does it sound compared to Zoom F6? 01:58 Wide Dynamic Range 32-bit Float Recording 09:53 Other new features 11:55 What if you’re sending audio from your recorder to your camera? 13:09 MixPre II vs Zoom F6 - Advantages of each 23:25 Should I buy a Zoom F6 or MixPre II?

The honesty and objectivity of the videos on this channel are very much appreciated. Specifically regarding this video, I don't understand why someone would click the Dislike button. Seriously, what is not to like with this one?

The Return of the Judd. May the sound be with us. (Thanks man. Fantastic review).

You know it's a perfect review when the questions you ask in your head while watching are being answered as if the presenter is a mind-reader.

Great comprehensive coverage! Thanks! One thing I think is worth noting. In my extensive experience with high end audio recording and playback, the added warmth of the MixPre is likely a consequence of lower distortion rather than a coloration itself. It actually reveals more detail but less aggressively. Thanks again for your even handed attention to detail!

This is exactly the review I was looking for. I’m now decided on the Mix Pre 10 2. I’ll be primarily using it for recording music with field recording later. Thank you so much for your review. Very helpful!!

Alhamdulillah tq so much, i decided to get zoom H6

Technology is getting so amazing that I could not imagine before. Thanks for the review!

Thanks I’ve been waiting for this review !!!

What a fantastic review - many thanks. Will be ordering a MixPre II this week :)

Incredible review Curtis! Thank you! Definitely gotta pick this one up 👍

Great info! Nice to see such a in depth comparison of these highend mid range recorders. Decisions, decisions, still up in the air about my next recorder. Thx Curtis

Curtis so glad you did this review. You are one of my no agenda reviews. Honesty and Integrity is why I keep checking out your videos. Nice work Curtis.

This is the best 32 bit demo and analysis video I’ve seen to date.

Great review. Now with this wide dynamic range of the recorder, we will need to take a closer look at the dynamic range of the microphone. This is especially true for effects recording. *QUESTION:* what file formats does the Sound Devices recorder support with the floating point format? I'm a bit out of touch with that, if things have changed. For example, How many tracks can be recorded in a single file? Are they limited to ether one mono track or one stereo track? (I'm assuming uncompressed or lossless compression data in this files too.) I took a look for floating point audio file formats but only found two; WavPack Lossless in WAV files and ALS in MPEG-4 files.

How honest can you be in a video? I'm definitely going to post it in my group as a reference. And thanks for spending some money :-)

Hi Curtis, I just got a Mixpre 3 ii. I watched a basic intro first and came here for the nitty gritty!

Thanks for all of your videos. I have not done video and sound for a few years and they are helping me relearn old skills and learn some new skills. Recently I purchased a MixPre-6 II to replace a Sound Devices 302. I have had one major issue with it that has caused me to return it. I connected it to a Canon R5 through the tripod screw and via stereo out to mic on the camera. TC on the MixPre was off (though on or off did not change the result). I had a mic on channel one using phantom power though a mic was not necessary to get the issue to appear. The MixPre was powered via NP-F but at other times 4 AA cells. When recording all you could hear was the TC signal on the sound track. Remove the connection between the MixPre and the camera via the tripod screw and the sound goes away. I tried many setting for video and audio. No change. I managed to get the sound to come through a Ninja V+ that connected to the camera hot shoe with an aluminium bracket. The Ninja was connected to the R5 with an HMDI cable. The MixPre was connected to the Ninja via stereo out to mic in on the Ninja. I also tried a Canon R3 with similar results. Working with Sound Devices we tried many permutations of the set-up but never resolved the issue. My concern is that should I purchase another MixPre (if you can find one) the issue might reappear. Have you ever come across anything like this using a MixPre or similar device? Thanks for any comments. Darrill

I picked up the MixPre 3 II a couple of weeks ago and could not be happier. I was using a Tascam DR-70D for the field and a MOTU Ultralite-mk3 in the studio. The MixPre is such a step up from both! The self noise is much better than both. The ergonomics is significantly better than the Tascam and of course the wide dynamic range is a game changer!

Professor hello. Just a quick word. I now have the Sound Devices mix pre 6ii. Well I don't actually have it but it's been on back order and should ship out next week sometime. I purchased mine thru Broadcast Supply Worldwide. .my equipment list is growing exponentially!!! I now own a total of 32 mics and counting. Thank you sir for being the best.. Rev. Bailey

Thank you Curtis! It is always a great pleasure listening to and learning from your reviews.

It's been about 2 hours since I last used my original Mix-Pre 3, and I still thoroughly enjoyed this video. I've got a lot to learn before I need to upgrade, but I am fascinated with the new hardware. I also enjoy watching someone deliver a review without a stumble or a flub up. It's been about 2 hours since I stumbled through my own video, LOL. Well done, Curtis.

Mr. Witt from Sound Devices got back to me. We worked everything out. Thanks again.

So nice to watch and listen to. You have a good energy. Very inviting and relaxing. My mind is not overloaded but inspired and made curious. And that's quite unique in KZfaq-land imo. Thanks!

There should be a feature on youtube for professional/qualified review. Always a 10/10, thank you for the wealth of knowledge you share!

Excellent review! My F6 is on the way and it’s really helpful to see the comparison with the MixPre II. Thanks, Curtis!

It is officially time to retire my SD 442/Tascam DR70D setup. Thanks, Curtis for the information.

The lesson I **really** need to take home from this: "You can make absolutely great recordings with all of them, it really comes down to YOUR skill level and putting the tool set to use in an effective way."

Very nice video. Can't wait for the next video on mixpre 6 II timecode options. If possible could you also cover the mixpre setup and details about connecting to various TC units (ambient, tentacle, etc...)

Compared to the Zoom F6, the Mix Pre 6 II interface has 32 bit float, and FPS/400ms audio delay in interface mode, but the Zoom F6 does not. I say this for anyone who is using this for live podcasting because you may need the audio delay for video sync. Also true 32 bit into your workflow/DAW without having to remove the SD card for those home projects is really nice.

Great review as always! Looking forward to upgrading from my H4N to the Mix Pre-3 ii.

Thanks for your great review, Curtis. Your reviews are always informative and trustworthy. Thanks for the detailed comparison of these and pointing out the importance of the headphone amps. When I switched over to Sound Devices products, I was immediately impressed with the quality of the headphone amp, and think it's a critical part of the recording process in the field.

Ordered my MixPre6 II yesterday☺️

I love listening to your reviews Curtis.

Full marks for using MDR 7506 cans!

Hi Curtis. Love the reviews and explainers. They truly explain. If you're looking for why the hottest recording sounds different from the quietest, it might be down to the quietest clip using, basically, the least-significant bits of your PCM word. I'd love a true ADC geek to enlighten me, but from my limited experience, years ago, recording string quartets and such on 16/44.1 Sony PCM-1s, i was taught that recording too low meant using, essentially, too few of those limited bits--risking quantization errors. Most of the time what prevented that was the inherent noise in the mics and preamps--a rough-and-ready form of dithering, which linearizes the signal. But what I always noticed back then is that a too-low-yet-dithered recording still sounded different from ones with fuller levels and the same noise underneath. So what you might be hearing is slightly differently modulated noise floors, selectively (and minutely) masking different parts of the spectrum. Which is certainly not a knock on your signal chain. Mic, preamp and converter self-noise haven't changed drastically since the early days. Getting 70-some dB noise floors, through a mic and pre in a quiet studio is great. And even the best MilSpec ADC, wrapped in $20K worth of NASA-grade power supply, is only good for 20-22 bits of actual capture, because of noise. The additional bits are only good for headroom, which ain't a bad thing. We live in good times. Thanks for the great videos!

I love that the Peli case is the 1st instrument listed, like it's the main centerpiece of the Judd family orchestra.

My second or third viewing. Currently I use the Rodecaster. I pull my audio off of that device, and add it to my video in post production. I have focused more on video. But I’m trying to bring my audio skills up more.

Thanks for the comprehensive review and I look forward to the TC review soon 👍

- edit: I stand corrected! - Correct me if I’m wrong, but the MixPre-6 II does not have timecode output whereas Zoom F6 has a minijack timecode (LTC) out and you can connect it straight to your dslr minijack audio input with cheap minijack-minijack cable for timecode sync. This will essentially save you the cost of one Tentacle Sync (240€) if you wish to sync the timecode with the recorder and camera. The MixPre-10 II is the only in the series with timecode output which brings me to the second question: will the BNC timecode output give the same type of signal output as a minijack timecode out? If yes the it would be usable with a BNC-minijack cable to sync a dslr via the camera audio input. Anyways great video as always, thanks!

Thanks Curtis for the juxtaposition. Very insightful. By the way, I really appreciate the sincerity and honesty in all of your videos. Keep up the great work!

Thank you!

Hi Curtis, Great Review! In my opinion the biggest problem with the MixPre II series is the lack of outputs. If I remember correctly none of them even have a standard XLR L&R Output. Right now, I am liking the 833 a lot. It has a lot more common sense features like more outputs, 2 SD cards, and larger file sizes. I also like the SL-2 a lot; especially since Sound Devices and Audio Limited merged. The SL-2 allows the wireless receiver to transfer the signal digitally to the 833 recorder. Cheers, Mathew

This guy is the man. Very good review.

As far as sound goes, I think the Zoom sounds great with Rode and the Sound Design better for Sennheiser. Either is a nice balance of bassiness and cleanliness of sound. I'm going with the Mixpre-6ii for the better quality line out, the hdmi triggering, and the ability to control gain while recording 32 bit float mode and build quality. I didn't get the Sony L adapter because it's funky, and I plan to try using the AA's as a backup to the usb powering. If I need anything more than this then there's probably a sound crew with their own.

Great review as always, should be noted you can plug the Zoom F6 into a computer for a backup recording, not as convenient as the USB backup though.

I just received my Mixpre 10 ii! I sound tested it with my lav mic, Shure TL48, and wow what a difference!

Once again, extremely instructive video. Thank you very much for your effort to produce this.

Great video. I just looked at the F6 website, it now has the wide dynamic range 32bit oat recording capabilities. Good to know you do some courses. I'll be doing some. Excellent videos.

Thanks for the very informative review/comparison. You mention a word I do not recognise and I can't find it on google. I may not be spelling it correctly. The word sounded like, "ampasonic".

One thing to mention as I felt this section might of been a little misleading: the Mixpre ii’s Pre-roll function also decreases in time when choosing the higher sample rate / bit depth’s, just like the Zoom f6. I’m not sure what the F6 ends up with when maxed out but I believe the Mixpre ii at 192khz, 32bit float, will only Pre-roll 2 Seconds.

Thanks for checking.

At the 16:24 mark, I was anticipating you mentioning Sound Devices' Wingman iOS App for Mix Pre and 6-series product lines. (you later showed it at the 17:45 mark - my bad!)

Another great review, especially for being unbiased, as you deal with the obvious elephant in the room, comparing to the Zoom F6. I still went for the F6 because of the feature distinctions from smaller footprint to pricing to powering options, but still find it baffling why Zoom only develops for iOS and not Android.

How do you not have 30 trillion followers. Such a resource. Thank you!

Thanks Curtis :) Very helpful information sequenced beautifully.

Couple notes and questions: - Voice sounding different at +76db: Since gain is still technically being applied, is it possible that by running the mic "hotter" than the others, its bass response is stronger and that's why you think it sounds different/better? (Or am I totally off-base?) - If I just have 1 camera (specifically the UMP since you have that) there's nothing wrong with just using the MixPre II as a generator FOR the camera, too, right? Instead of buying one for it. - Worth nothing that the pre-roll buffer drops to like 2 seconds (on MixPre-3 II) when in 32-bit mode. (Or at least 32-bit + 192khz) I do wish the MixPre-3 could do USB backup while taking USB power - I refuse to futz with the NPF sled anymore and am only using USB batteries, but would love to give it a big flash drive to keep backups running.

I love that safety feature, not having to kick yourself for clipping, and the 2nd backup capability. The small form factor and quality is hard to beat for a run and gun scenario.

Great review as usual. Thank you, Curtis!

Thanks for the clear, informative review. I'd be interested in your tutorials.

Great review as usual. Thanks!

FAB review Curtis! Couple of things I would like to add.... Customer support and ruggedness. I work all over the world and all my SD kit (yep still have a bombproof 633 that always works. hot, cold, humid, rain, dust -Always) just works. On the couple of rare times where I had an issue (ruined out to be an ID 10 T error on my part) the team as SD picked up the phone call and talked me through a fix. Try doing that with the Zoom people! NOT. Thanks for the review!

I'm a simple man.* I see a Curtis Judd episode, I click it, I watch the ads** (to support his channel), and I thumbs up the video (even before watching it). * Because I think he is a nice person, with the bonus that he provides such an in-depth, honest opinions on products. And I love the fact he gets right to it with the PROs and CONs right at the beginning! ** Huh, seems like no ads in this one. Interesting! That's okay. I just watch another video. Saramonic gave me a juicy ad at 2 minutes 59 seconds... And that's just one of two ads. Haha! Oh, another one now (chgardens) at a minute 56. :) I make sure not to skip the ads. Tricky KZfaq, with your blank few seconds at the end so that people impatiently press skip. Just finished watch the video. Curtis, you freakin' rock. What a great overview. When I have "extra" money, I'll probably get the Mix Pre 6 II. Money is going towards a Skydio 2 at the moment. xD Haha!

Thanks Chris. Great review as always. Zoom F6 has 6 non - TRS XLR inputs. The MixPre II 6 has 4 XLR with TRS inputs. Less XLR inputs but with TRS. Bluetooth is not a big deal for me yet. Something else to lower the runtime of the device. This is a hard sell for me, the Zoom is less expensive with more XLR inputs with about the same audio quality just does not have TRS, but they have XLR to TRS female cables for that.

I loved one man in my life and that's Jesus and now I love another man and that's Curtis ahahahaha these videos are so informative they don't get the justice they deserve this is 700k views worth plus some . thank you for all you do!!!!!!!!!!!!!!!!!!!

My f6 just arrived I will say the remote app is fabulous and all the controls can be remote controlled I was on the fence but the lower price for the channels offered was a significant factor The form factor is fine and I found it easy to navigate even with the buttons but I use the app more The state of high quality audio is excellent these days thanks for your channel

exactly informative to what i’m looking for . amazing video man keep it up trying to figure out my audio system, coming form the cine world

Thank you Curtis. This is invaluable to us noobs who are trying to choose equipment for our future capabilities. Currently I’m very early in my AV career, and have a zoom h5, a Scarlett solo, and a beachtek and a 70d that I picked up second hand. Was considering a new gen Focusrite 2i2 to help with my NT1, but then...why not consider a Mix Pre 3 to cover all bases? Seems like a considerable upgrade on all of my recorders/interfaces. I can keep the solo plugged into my computer for face to face meetings, and the h5 for highly mobile stuff with the NTG3 or Lav, and use the Mix pre for everything in between. I feel as though I will be unappreciative for all the struggles that audio guys of the past went thru.

25:26 beautifully said Curtis. Keep it up, love watching your videos!

Great video Curtis, what we need now is how to normalize & compress the 32bit float audio in audition 2019...!!

Interesting. 32-bit float seems a bit like shooting raw, in that the level almost becomes metadata. "Gainless" recording seems perplexing at first, until you consider that you have to deal with the sound that's available, unless you want people to change their performance. So all you can do is position appropriate mics as well as you can... and start rolling. It's the same sound pressure hitting the mic regardless of gain... so it's great to simply be able to capture it all and deal with it in post.

Hey, great that you’re doing in depth paid for courses now. Enjoyed lots of your KZfaq stuff so I’ll be emptying my wallet your way for them!

love the videos. help so much when I'm thinking of new gear!

Loved !!! 👍 Thanks Curtis ! I'll buy a course soon ! 😉

I really appreciate the fact that you respond to questions/comments, thank you!!! What product do you recommend for recording audio for a musician?

Hi Curtis, thank you so much for all of your great reviews and videos. I almost watched them all and learned a lot (After 8 years of studying film at one of the best film universities and working in the field for more than 20 years that means something). After working as director, screenwriter on bigger feature films, I came lately to the decision to make a more guerrilla-one-man-show-documentary-project and started watching your channel, as well as Gerald's and Josh's. I've bought a Sony Alpha 7 III and some other stuff and now was planning to buy a Field Recorder. In this video you are mentioning all the differences between the Zoom F6 and MixPreSeries but somehow you forgot to mention one of the most important features of the MixpreSeries for a one-man-show-shooting which as far as I understand is missing at the F6: The Record-Trigger via HDMI. With this option you wouldn't need a external-TC-sync as Nano-Lockit or TentantcleSync because it not only syncs the timecode of your camera with the sounddevice but also starts the recording at the same time! With this exact starting point of both files (audio and video) you would not even need the timecode to sync in postproduction as you have exact same file length. (By saying that, the rec trigger would be more important for a solo-shooter than TC-Sync which becomes relevant if you work with more than one camera). So last week we had a shooting where I wanted to test this. The rental only had the old Mixpre 3 I Version available and I was facing several problems, not sure if they occurred because of a broken device or the older version or or or: - USB Power (via Powerbank) occurs the following problem: cannot read TC because of Low Power -Batteries both (rec trigger and tc sync) worked but batteries only lasted for half an hour While connected to a Sony Alpha 7 III the camera thinks it is a monitor that is connected. This means: The moment you hit the record button on the camera both devices start recording but the Picture on the Sony-Monitor disappears which means there's is no way of operating /controlling the shot/ picture. I am aware of that you are mostly using the GH5 and I also watched all videos of Gerald regarding the HDMI Settings which only helps if you record on an external monitor. I've also tried to find other videos and manuals. There is one by sounddevice regarding the Alpha7s but the setup did not work: cdn.sounddevices.com/download/guides/MixPreSeries-SonyA7SR.pdf As this option - recording on all devices with one button - is a super relevant topic for all one-man-shows (e.g. vloggers) I (and maybe others) would be sooooo thankful if you could give feedback on this. Thank you so much in advance! Best Niels

Listening on Sony 1AM2 headphones (3Hz to 100KHz specs), plugged to SoundBlaster X G6 with all the effects turned off, (32bit 192KHz audio settings on Windows 10). I can hear every sound your body and clothes make, even when your hands touch off-camera when you're talking, and the reflectons of your voice from the walls of your room. And also a noise floor, but I'm not sure if it's from the DPA 4017b, the XLR cable or the MixPre II, I can tell it's definetly not room noise though. At 5:52 I can clearly hear the difference on the recording levels too. The +6dB definetly sounds the cleanest and most pleasant, (I would describe this recording as the one with the most dynamic range and least noise/distortion). While the +45dB sounds boosted and the +76dB almost sounds clipped, and I can tell it definely was brough back in post from clipping levels. But this is exteme scenario, you probably wouldn't be able to tell the difference listening on normal speakers and all of these recordings would sound great. So, even though Sound Devices tells us that the knobs are useless in 32bit, turning these physical potentiometers up, probably introduces some sort of current on the preamps and meses with the signal. So I would keep these knobs at the minimum setting of +6dB at all times when recording in 32bit and bring it up in post. Great review.

Hello, thank you very very interesting, I have the gen1 MixPre6 model, I don't think I need to change it because for clipping I'm not afraid because limitier does a fantastic job, to increase the gain, your test is in a soundproof room, in a real environment, increased the gain of 50db would also increase the ambient sound (even if it will be clean)... Normally I increase the sound from 5 to 15 db maximum in postproduction, I don't see any noticeable difference in 24bits, The most important I think is to always remember that the distance between and axis the microphone and the soundproofing of the room are the most important :)

Incredible review Curtis, thank you very much. I just wait for a review of the music application and leave the computer. Greetings.

Brilliant review - will def consider buying MixPre

The F6 roller bars are designed to thread a belt through. This makes body mounting much easier for the recordist. The MixPre needs a (costly) audio bag instead!

13:09 great comparison of MixPre and Zoom. Everything I wanted to know. I'm probably set on using the Zoom F6 because I am stuck with iPhone in order to use Stream Deck Mobile. If I go pro with my mobile live mixing setup I'll definitely consider the MixPre-ii for the build quality, sound copy, and remix features.

Fantastic video! SO much useful information, and so nicely presented!! A+++

Curtis ! Big fan of your in depth analysis. One question, how many lufs do you recommend for youtube, given YT recommends -14.

This 32 bit audio is going to be a part of every reputable prosumer-pro mixer from here on forward. Just my opinion

Coming back to this having tried the zoom F6 and then bought an F8N for the slightly larger input count and the more ergonomic controls. However, the zoom F6 sounds spectacular - I believe better than zoom F8n. There is an airiness and effortlessness about the zoom F6 audio in 32 bit mode and I have to say I’m slightly regretting my decision in going for the F8n as I very seldom use all 8 inputs and ergonomics aside, the F6 would be better for my purposes, which is mainly location, music recording, and the odd ambisonic recording at home and away. I used the F6 for a location music video recording in a very difficult remote environment with very little power, and I don’t know if you cover this in your video, but you can also power it all day long using a power bank via the USB-C, something you can’t do with the F8n. This was using several phantom powered mics simultaneously for many hours of continuous use. It was very good indeed and because I had lighting and cameras to deal with as well, it was fantastic having one less thing to worry about. By the way, in my research, I discovered the mix pre-2 models will allow you to use it as an interface in 32-but float, whereas the F6 / F8n is limited to 24. However, if you are using it as an interface, it’s more likely in my case to be at home where I can be more in control of levels, whereas on location, it’s fantastic to have the assurance that the recording will work, come what may.

Great Video with fantastic analysis. I really do look forward to "Time Coding/Syncing "??? From multiple camera sources..... and then what equipment do you need. Thank you 😊

Chris, what an incredible review. I'm a Texas high school video teacher that teaches A/V as a moving operating filmset rather than your typical high school news cast. I'm looking at the mix pre for one of my new line items for this new 20-21 school year. I love this video to the point that my students will watch it next week and answer discussion questions over it. Great way of breaking down 32bit and its benefits. I find it difficult to help students understand the nuisances of bit depth and this does a great job. If you could answer a quick question, what outboard mixers would you recommend for the Mix Pre. I want my student who's our Production Sound Mixer on set to have real faders over knobs. How does this piece of equipment plug into the Mix Pre 10 and what would you recommend?

Hi Curtis, Do you have a MixPre10? If yes, what bag do you recommend? I have a PortaBrace bag but the mixer sinks too far in and isn't level. Tx

Hi Curtis, Thanks for all the awesome videos. they have helped me tremendously since I'm just learning about sound. I'm a little curious about the difference between the MixPre 3 II and a Zoom H5 ( price difference aside. I'm looking to upgrade from the H5, but am only doing tutorial videos so far) Any advise would be much appreciated. Thanks again.

Great video as always ... which one would you choose: Sound Devices 663 bought second hand or Sound Devices MixPre 10 II purchased new? Mainly oriented to the cinema. I have that big question right now. Thank you!

Thanks for the great review. I'm looking at replacing our old Shure FP33 with something a bit newer :) We always record directly to a variety of cameras, but the ability to do a recording with the mixer seems like a nice redundancy option for me. We typically just use a few wireless mics and maybe boom and output to the camera. If we're using multiple mics, I pan left and right, then in post, we can pan to center and cut out any excess audio and have a very clean finished product. It seems like this would be a good option for our needs. I assume all of the above scenarios would be achievable with the SDs. We only need 3 inputs with 48v option and output via XLR L/R. Would be nice to have a 1K tone... :)

What's your average gain setting on your MixPre10II ??? I found me cranking mine up to about mid 40's.... about 45db .... how about you??

32bit is jaw-dropping ! I didn't know it could be possible...

Hi Curtis, love your videos BTW. Keep it up. I just purchased the Mixpre-10 II. Love it! Have you ever had a corrupt file take on any MixPre? I'm concerned the lack of dual card recording might bite me in the butt.

Very interesting review, thank you. I'm currently looking at both the mixpre 10 II and the 633 for field recording. What I like about the mixpre 10 is that it can be used as an audio interface for recording music as well, while the 633 seems to be the one most professionals (on a budget) would go for. But is there really that big of a sound quality difference? I'm really unsure which one to go for.

Great video. I was just wondering if someone could clue me in as to why we're not recording 32 bit float all the time if it can salvage almost anything?

Hi Curtis, your channel is indeed a superior source of good information. Thanks. Since the MixPre-D series could change phantom voltage to 12v, I was wondering if MixPre -6 II could do the same on the 1 to 4 channel using a XLR to minijack converter plug! In the case you wanted to run all your lapel mics in. Yes my mics all work through the Aux/Mic IN. Regards.