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FCS210 Dual Dynamic Driver  In-Ear Monitors $129

The FCS210 sound as good as earphones costing hundreds more. It’s the best bang for the buck on the market today. The FCS210 comes with a 14-day money back guarantee. If you don’t feel it’s the best money you’ve ever spent towards improving your performance, you pay shipping back for a full refund. Please scroll down to read some client references.

$129 with waterproof hardshell case
Dual Dynamic In Ear Monitors

                            FCS210  Red-Right / Blue-Left                                                                                                       FCS210  Red   

The FCS 2x10 achieves a massive sound stage by combining 2 proprietary dynamic transducers in an array style format. The drivers are time aligned and in phase. Our proprietary voice coil technology moves air which creates bone induction. You’ll feel the sound – not just hear it. The result is a larger more visceral high-definition audio signature at less volume.

Hey guys,
Mike Volkerding here. My primary business is a regional sound lighting and staging company in Cincinnati Oh. For the last 20 years, as a side passion, I’ve been a consultant to many national and regional acts providing in ear monitors and wireless systems. Here are a link if you’d like more background http://www.freqcitysound.com/clients/

I get an average of hundred earphones a year from companies all around the world wanting me to sell their product. I don’t see the advantage of stocking another product that sounds the same as another. That’s why my website presents a limited number of items. A lot of the samples are great but there's one little thing that aggravates me about them. A little bit too much honk in the mid-range, high-end a bit too glassy, low end floppy and not tight, or overbearing, cable feels Mickey Mouse, you get my drift.

Well I finally received one in mail that had potential. The original product I was mailed was designed for personal listening. Obviously, a stage earphone needs to handle a lot more SPL. We worked with the manufacturer to upgrade the drivers and tweak the filters to our desired spec. Our result is totally stage worthy.

Okay, you're waiting to hear why they're so great.
Many of you that have worked with me for years and know that while I stock the armature driver Shure, Westone IEMs, if you ask my opinion - I am a dynamic driver kinda guy.  - https://app.create.web.com/builder/index.html?sso=VqeqdWpzYC&unique_id=1551999823277 Scroll down. 

The two main dynamic earphone manufacturers I’ve partnered with through the years are the Future Sonics, and Aurisonics. The future Sonics G10 and its predecessor the Atrio use a single 10mm Dynamic driver. The Aurisonics Bravo Series and the entire new Fender line also use a single 10mm driver. The FCS 2X10 has a 10mm & an 8.2mm Dynamic.

Why double the speakers? Sound guys; you know what happens to your sound when you double the FOH speakers or line arrays? It’s the same here. Yes, you can get more volume but mainly, your sound gets larger and more full. You get more coverage with less gain. The two speakers add a lot of space and size to the sound. Your volume can stay the same but the sound just gets bigger.
Every frequency is there and sounds correct. By correct, ever go to hear a band where you thought to yourself, “damn – that kick drum is bad ass?” or “How does that sound guy get the vocals out front like that?”
All the above comes from the system being tuned and EQ-ed correctly. The 2X10 IS TUNED CORRECTLY.

The shape of the earphone is very close to a custom mold. This helps with isolation and fit. It has a detachable cable which interchangeable with the Shure cables if you’d like to add phone capabilities to your 2X10.
The 2X10 comes with an oversized Pelican WaterProof case which makes it easier to get the IEM put away and adds storage for tips etc.

With all dynamic drivers, the seal or seating of the earphone in your ear canal is critical to getting 100% of the sound the earphone can produce. Included is a serious collection of tips to be certain of a proper fit. I didn’t put any money into a fancy retail package. These ears will go straight to the player’s ears (won’t be displayed on a music store shelf). My thought was to keep that eight dollars in your wallets.
Freq City Sound Warranty: I’d like to take the worry out of you trying this product. If you don’t think it’s everything I’ve spelled out (sounds like an IEM costing twice as much), send it back within 14 days and I’ll refund. You pay shipping back to me.

The product itself comes with a one-year warranty.

Color options are Ruby (Red) or Red-Right / Blue-Left
• Sensitivity: 98±3dB
• Frequency Response Range: 18Hz-20kHz
• Model Number: FCS 2X10
• Sensitivity: 98dB
• Input Impedance: 32Ω
• Driver Type: Coupled Dynamic Drivers
• Cord Length: 47”
• One Year Warranty
My Contact info for questions - MIKE VOLKERDING: 513.375.3302 CELL

Waterproof FCS210 Earphone Case
$129 with waterproof hardshell case
FCS210 $129 with hardshell case and tips package


Kyle - Sound Guy in Cincinnati was having a time with his bass players volume. Sent him home with a set of the 210. Here was his follow up email: 

Never had this much low end control in my life and the bass player has been smiling and giggling at what he hears all night.


Just received the FCS210's. I've got to say hands down the nicest sounding IEM's I've ever tried. Everything is tight, in front and crystal clear. Thank you for including an excessive number of tips. Took me a bit to get a good seal but once I did, Wow! Just Wow!!! Billy S. Port Saint Lucie, FL

Mike, thanks so much for the advice and for setting me up with the FCS210’s. Played my third show with them last night and they are amazing! The fact that you sent a variety of tips to try was awesome. When the set arrived, I sat listening to music with the TV on. I was able to pick the tips that fit the best in my ears, and delivered the broadest frequency response, solid lows and clean crisp highs. I’m hearing everyone in our band like never before. I really appreciate your help, and you sharing your expertise! All the best, Denny / Cincinnati OH


Thank you for the great customer service. I love the in ears. Just to let you know, I had a video shoot to do and in a moment of haste bought a set of Shure 425s for it. I like the in ears I got from you so much more. The bass response is lacking with the Shure but I haven't had that problem with the FCS210. Thanks again. K S REED Antioch, TN


Mike, I used the FCS-210 in ear monitors last night playing my electronic drum kit. You were right about the seal. I was completely blown away by the sound. Are you familiar with the old electronic 808 bass sound? It’s a subharmonic hit. It starts low but drops lower as the sample plays. The FCS210 were giving me full low-end response during the 808 hit. It sounded like a real subwoofer in my ear.

The attack on the snare drum was so clear I had to turn it down in the mix. Then when goofing around with some of the other sounds. The low end was producing frequencies that I have never heard out of my Westone UM20Pro. Lows weren’t overwhelming but damned sure there when I asked for it. They may not be totally flat in response, but they sound really damn good. Andy K. Sound Engineer & Drummer Cincinnati OH


Hey Mike,

Just wanted to say thanks for a great pair of earphones. I have been using in-ear monitors for 18 years now and these are without a doubt the best quality and bang for the buck earphones that I have come across. Add to that your incredible service and I must say you have found a loyal customer. When I had a problem with one of the ear pieces, you replaced it without question in 3 days, quick enough so I didn't miss a beat on my gig. Once again, I unabashedly recommend these earphones and your quality service to any and all in need of a good pair of in-ear monitors that won't break the bank. Thanks again,

Bill Lombardi Moscow PA


Hi Mike, just thought I’d drop you a note on the FCS 2x10’s you sent me.

I love them. I’ve spent a week listening to music out on my bike and in my studio. The 2X10 has prompted me to listen to a lot of music I’d forgotten about. They’re also very comfortable to wear.

We’ve been listening to armature drivers for so long that we have forgotten what low end in the music should sound like.

You have a great product in the 2x10. I believe you’re selling them far too cheap.

I’ve been in touch with a couple of my Monitor buddies and told them about the product and where to get it. You should see their orders soon.

Thanks again for turning me on to the 2X10.

Nick Warren
Northern Bloke Productions LTD
The 2x10's turned up the other day, thanks for the fast delivery. I was so looking forward to trying these baby's out after reading Mike's review.
Found a good song on my phone with plenty of bass and couldn't believe my ears WOW!
I've got a great pair of Yamaha Headphones that are great but the 2x10 just smoked them with clarity and depth.
I play bass in a band and I ran them through my Rolls PM351 IEM Hardwired Amp and all I can say is these "in ears" are Fricken Awesome. I highly recommend them.

John Wilkie, Nelson, New Zealand

Mike, you were right about the 2X10 helping with our stage volume. I never touched the volume on my bass amp because I could hear it fine with the IEM. Vocals were crystal clear with plenty of presence. Our guitarist also used the 2X10. His volume was so low on stage that the others were asking for more guitar in their floor monitors...which is a first. The 2x10 earbuds had the bass and kick drum thumping. Very pleased – Thanks!
Follow Up - Our drummer, Ernie Rehm also purchased a set of 2x10 earbuds from you just before new year’s (to replace his Shure 215) and he loves them.

Three of us now have the 2x10. This new IEM system sounds much better than anything I have used in the past! We are much quieter now (on stage and out front). Our harmonies have improved since we can hear the vocals so much better. I was thinking about buying a bigger bass cab for outdoor shows...no need now, I can hear everything fine.

Thanks again,
Jimmy G
Mr Zero Band
Indianapolis, In.

Hello Mike, just thought I’d drop you a quick line re: the 2x10. I’ve had them for a few days and had a chance to give them a good listening to.
(They’re a replacement for a pair of Westone UM-2’s which I got from you many moons ago).

Firstly, WOW! Immediately you can tell the difference from the Westone's. (I’m running them out of a Fiio X3 via an iBasso D2-Boa). A much bigger and fuller sound. They’re smoother and refined but still more detailed and very much more dynamic with a good controlled grunt at the low end.

For the price they're an absolute bargain.

Thanks for the extra tips too. I’m playing around to get the right fit for me but that’s just fine tuning.

Many thanks for the recommendation,

Cheers again,

Jim Frost / Alford UK

Mike. I have been playing the professional circuit since the late 70’s. Rock, metal, etc. I am now playing with some very talented individuals in an orchestra that plays Richard Clayderman and the like. I am the vocalist and Bass player. I play a fretless Jazz Bass. I have always played thru industry standard equipment including PA and wedges on stage. I am of the old school and I like my wedges but as a vocalist, in-ear systems have their place.

I just sold an Aurisonics – ASGB. They had great bottom end, but my current playing situation leans towards cutting and crisp vocals. I took your advice and bought the FCS2X10. I must say that I am very impressed Mike. The sound is balanced and full across the entire spectrum. That is no small accomplishment. Thank-you for everything Mike!

Mike just wanted you to know the IEM's came in and sound great. There's a little bit of extended bass but it's clear and tight. A lot of separation in the instruments which is exactly what I was looking for. Thanks for the recommendation and the awesome price.
Rivul Band / Gonzales, LA

The IEM's came in today’s mail, I tried a couple of the provided tips worked ok but was able to get best seal and fit with the Spinfit CP100 tips I had purchased at some point for a pair of UE TripleFi10's. The FCS210 IEM's tip is 5 mm. Should also let you know I am using the Westone Bluetooth cable with these and works great. Definitely more bottom with these over my Westone W40's, Etymotic ER4P and the UE TripleFi's. Thanks, Dave / Cary, NC

Mike, Nice clean low-end, but also has the highs that I was missing in the Aurisonics ASGB. Excellent sound and I will highly recommend. Mark Gray - Drummer / Cincinnati

Thanks Mike, The FC210 in ear monitor buds work great, and the bass is perfect I had to turn the bass player down in my mix. I would recommend the FC210 to anybody looking for a more professional quality sound for their group or band. Randy / Drums /First Baptist Church of Beverly Hills

Rehearsal was a blast. I love the 210s. The sound stage was better than the Beyer 770s I've been using. I'm really impressed. The tips you had on them worked great, never even felt the need to try the others. They stayed in place and were actually quite comfortable. Felt like a live band with cabs and I was right in the middle of it. I could here every instrument and every voice clearly, yet everything merged and meshed into one punchy coherent mix. For the money spent I couldn't be happier. I'm a Fractal Audio guy so I do a lot of tone tweaking. The 210s uncovered weaknesses in some of my presets. I'll be adjusting them to sound their best in the 210s and I think the tones will then translate better through our mains.

I'm a believer! I will be recommending 210s to anybody I run across looking to purchase some IEMs. This is going to sound ridiculous, but after one rehearsal I like the 210s more than ever did the $1150 JH16s I used to own.....way more. They are just a different beast altogether.

I'm glad I ran across your offering on eBay.
Ross Elliott - Granbury, TX

Hey Mike, I love the way the 2X10 sound and how they sit in the ear. The sound is full and rich. The low end is king and the highs are just where I like them to be. Isolation is great-as a drummer that's a must. Can’t wait to use them on stage. Thank-you Mike. Yuval Lion-professional Drummer-NYC

Hi Mike

Sorry this has taken a while, but you were right that you need to get those headphones setup properly before you get the full benefit of the sound.

So, I have a set of Westone 3 way in-ear (they're one of the original sets I got from you), the Aurisonics Kicker Gunmetal Gray, and my studio headphones are Sennheiser HD600s. Sadly I no longer have the Westone 4Rs. Those were very special.

The FCS 2X10 Dynamic IEM in-ear monitors have as good or better sound as other devices two to three times their price. To my ear anyways. The two drivers make them 'live' and they present move volume / sonic pressure than equivalent in-ear monitors that I've listened to. I had to dial down the volume as I am used to the efficiency of sound that you get from the mid- range in-ear monitors. The term 'massive' is a good description if you push the volume. They remind me of the Mofi Blue headphones with the in-phone amp turned on, without as much analog white noise at volume. I'm playing 96k/24bit recordings (both native and up converted from 44.1k/16bit & 24bit). After I got them dialed in, I can listen to them for hours without strain. They've become my main listening in-ears over the last couple of months. Thanks for letting me know about these IEMs.

And I am finding I am hearing new parts of the music (on all my soundstages), something I find only happens when my ears are presented with input that I haven't been hearing previously, and eventually my brain figures out what the ears are hearing. Given that the FCS 2X10 Dynamic IEMs are the only change I've made recently in my audio setup, I'm going to give them the credit for this happy experience.

Dave from Calgary, Canada

I wanted to drop you a line and extend a huge "THANK-YOU" for the new FCS 2x10’s. Because of your superb service with my previous in-ear system including the Future Sonics Atrio. I knew that I had to contact you again for my in-ear requirements. I am extremely satisfied with the product and the service you provided. The 2x10's provide a very fat full sound! A few months ago, our bass player was complaining about his in ears and I suggested that he call up Mike! Needless to say, you have two very satisfied customers in our band who love the FCS 2x10's. The Whiskey Boyz / Edmonton, Alberta, Canada Whiskey Boyz Band
Hello Mike got my FCS210 in ears today. They sound great, better than my Westone dual driver molds!!! Much less money and a fat, crisp much better sound!!! Thanks for the info and such a great product!!!
Jeff Offutt – Bass / Don Ray Band

Hey Mike,
Received my fcs 210's yesterday. They sound incredible, and I was able to use them at rehearsal last night. I believe it was the first time I could really hear my bass and it actually sounded like a bass. I usually end up pulling one of my iem's out at some point. No need to do that with these. Great isolation for me as well. Jerry / Waynesville Ohio

Hi, Mike.
I stumbled across your ineargear page and decided to try the ears you have listed. The FCS 2x10 model had a great price point and seemed like a good solution for my listening.
I placed the order and heard back from you the same day with shipping and contact info. Received the FCS 2x10s the next day and tried them out. Here are some of my observations:
1. FIT: These fit my ears better than any other in-ear speakers I have ever tried. Normally I can't keep in ear types in my ear without something holding them in. These fit comfortably right away. Big plus to me on this first item.
2. SOUND: The sound is considerably cleaner than the pair I was using. Highs were sharp and understandable while the lows gave a good solid foundation. I don't typically listen to bass heavy music, but I like a good solid foundation. Some brands are way too bass heavy. These let you feel the bass without getting muddy.
3. TIPS: Mike isn't kidding when he says he includes a generous selection. I experimented and found the tips that gave the best sound for me. I actually use two different types; one set for general listening so I can hear some of the ambient noise another with foam tips (not included) for total outside block for times I'm using power equipment, so I can listen without damaging volume.

4. CASE: It’s a minor thing in one way but the Pelican case provided (when purchased from the website) is large enough that I can put the 2x10s, a spare 6-foot extension cable and the extra tips. Some of the others I've purchased either have no case or it’s so small you can't fit anything extra. Shows more thought into what the end users need.
I provide equipment for a church worship band and have tried out several in-ear sets. These are equal to or better than some that cost more than twice as much. Sound quality blows the single driver sets out of the water and is as good as or better than any of the two driver sets I've tried. As a sound tech I like to find the cleanest sound I can get for my team. The move from wedges to in ear system has lowered our overall volume by at least 30% and it’s still very clear and comfortable to hear everything. I will be buying more sets as I retire those we have already purchased. Richard / Winchester KY
Hello Mike, I tried your in-ears for a gig and I'm very happy with them. I was really in the music, with lots of low end, the sound was crisp and precise, I really had the feeling I was playing along a cd :). A friend of mine, a drummer like me, he tried them and was convinced too, that's why I'm ordering another pair now. Who knows, I might convince the rest of my band buddies to buy some too!

Cheers, Pierre/ Bruxelles Belgium

Mike, First thanks for the super-fast shipping. I was able to use the FCS210’s at rehearsal yesterday and I was blown away by how clear the sound was and how well they blocked outside sounds. We practice in a small room with a 5-piece band and for the first time I could hear everyone perfectly. The in-ears were exactly what I had hoped they would be and probably even better than I thought possible. Thanks again, Andrew K Jacksonville, FL

Mike. I just wanted to tell you how much I love the FCS-210s. I have been an owner and regular user of Future Sonics for over 10 years (Atrios and G10 with custom molds). In my opinion they were one of the best values in an IEM with sound equal to much more expensive units. However, after receiving the FCS 210s for everyday use, I was blown away by the big full sound. After a/b testing, the FCS will become my stage units. The sound is amazing, and they stay in place extremely well. I recommend these highly for anyone looking for a great sounding IEM at an incredible price. Bobby M. Madison, AL

Hello Mike, The FCS 2X10 EARPHONE’s worked out brilliantly…… Love them.
Yours Truly, Marc / Delinquent Records / North Vancouver BC
Hi Mike thanks for the super -fast shipping on my new 2X10 earphones. I’ve got to say, for the price these buds rock. I'm a drummer. Needing to hear the vocals live on stage has always been tricky with a wedge. Usually to loud and/or bright. I put these on for my drum mix and love the deep feel it you get with them. Sweet. Thanks again. Rick Smyth

There can be only one word to describe your service: OUTSTANDING! Thanks for going the extra mile & under-declaring it. That propa made sure it got to me hassle-free. Very professional mate. Now I know where the next audio kit's coming from. Please stay in business! Plan to give you a lot more! The IEM's sound incredible. Thank you very much. 5-star feedback coming up!
Regards (from India) Rob

I finally got to use the new 210 earbuds last night at practice and I must say that they sounded fantastic. I used the tips they came with it but I had to keep reseating them often, so I changed them out with the future sonics style Christmas tree tips and tried that when I got home last night and they seem to stay pretty firmly seated. I remember that feeling from back when I had my Atrio‘s, and it’s uncomfortable at first because they’re so deep, but then you get used to it. I also played a lot of my favorite tunes through the 210’s and the bass was definitely there and the highs were not ice pack quality they seemed to be more rounded. Can’t wait to use them again at the next band practice with these new tips and see how they stay seated. I have never used any really expensive high dollar earbuds before Mike, but I loved the Future Sonics Atrios and these are right up there with them if not better.

If I ever decide again by some freak of nature to quit playing live music I will definitely keep these 210’s as my personal headphones at home as they sound really fantastic. Thanks again for doing the legwork on the product testing Mike and for all offering quality products at a good price.

Gary B / Daphne Alabama


Hi Mike, received these about 10 days ago. You are so correct about finding the right sized tips. I had these out on a few rehearsals and now 2 gigs with the stock tips, and they worked ok. After changing to the correct sized ends, it made all the difference. Having to fiddle with the tiny rubber tips isn't super easy, but I got the hang of it pretty quickly. Once I got them fitting perfectly, the performance really becomes apparent.
These do perform as well as other units that cost a lot more, imo
Jeff B Warrenton, VA
OMG! Just received my order (extremely fast shipping btw!) of the FCS-210’s and they are UNBELIEVABLE! As you know, I purchased a set of the Fender FXA2’s from you when you first started carrying them and, as good as they are, the 210’s simply blow them away! Pure bass, crystal clean mids and highs. Why anybody would spend more on IEM’s is beyond me. Thank you, thank you, thank you!
Den / Sterling, CT

I did my first gig yesterday with the FCS210 and wow, what a step up they are from the Future sonics Atrio (which I loved). A simple A/B test shows the FCS210 as being way better across all the range without losing any bass which is what is important for me (I’m a bass player). The sound is more 3D and closest to a good reference speaker or headphone (not in a lifeless sterile way). I’m totally happy with my purchase and cannot believe such a great product exist for such a low price! Thanks for your help and for offering this awesome product. My friends won’t believe the price I paid!

Martin L / BC Canada
Mike, all I can say is wow! I've used many high end, very expensive IMEs and these sound just as good or better. I am a bass player and the low end is tremendous. Tight and punchy. Coupled with the clear highs, I know I have made a quality purchase.
Thanks again! Alex / Cincinnati OH