Phenyx Pro 4-Channel UHF Mono Wireless in Ear Monitor System PTM-33-4B

The Phenyx Pro PTM-33 is by far the BEST budget wireless IEM system that I have used to date. I’m the worship director of worship team for a small church that averages in about 50-60 members per Sunday for our one 11am-1pm worship service. Before using the Phenyx Pro PTM-33 we were using a super budget 2 channel 250 dollar wireless IEM system with 6 wireless receivers sharing two channels. Needless to say as a band we were more or less dealing with it more than we were actually happy with it. We had more than occasional dropouts, the sound coming from the receivers were not only so quiet that the system needed an additional purchase of an amp to be usable, but they also were extremely treble heavy and left a lot of lower frequencies completely lost in the mix. We were always trying everything in our power to get more of our lower frequencies to come through clearly on these and just ended up dealing with it because at least we were able to somewhat hear ourselves despite the quality. Fast forward to the beginning of 2023 when I decided it was time to go wireless with our mics and ended up choosing the Phenyx Pro PTU-7000A which we were absolutely amazed by. This made me curious enough to get the PTM-33 wireless IEM system. Hooking this system up was a dream. I was actually late the day I decided to hook the new system up, panicking, thinking I wouldn’t have the time, but thank the Lord for how easy setup was. I had it out the box, connected to our system and ready to go in 5 minutes flat. Due to the ability to make a daisy chain connection, I literally only needed one wire from the system I already had and a couple spare short wires that I had sitting around to connect every channel and back out into the original system we were using. I couldn’t dream of it being any easier than this! The size of the transmitter was absolutely perfect as well, being not much bigger than the system and amp we already had. I think the only thing that would probably make me happier for the setup process was if there was an auto-scan option for every channel just like on the PTU-7000A to search the RF environment to locate better available frequencies with more precision than just randomly looking through and praying its a perfect channel. REGARDLESS, we experienced ZERO dropouts throughout our stage and sanctuary. Heck, I was able to go to the bathroom and not miss a beat of the sermon because the signal reached all the way out to our bathroom by the entrance of the church building while our transmitter sat on stage. As far as the sound quality goes, I will say the one thing I was not pleased by was the In-Ear Monitor earpieces that came with the system. These were the only thing I would say was not good with what came with the system. They were about as useful as a pair of airplane earbuds if they actually had silicone tips. They were a bit tinny, and didn’t have much depth or soundstage in my opinion. They also offered zero noise isolation, I could literally hear everything else going on around me clear as day. I may be being a little bit harsh, but I’m spoiled with much better sounding earpieces. I could hear everything, but it was definitely not enjoyable and made me glad that my band all had their own IEM Earpieces. I’d say use the included earpieces if you don’t already own your own and are still waiting for your new earpieces to come in. Definitely look into companies like KZ, CRA, Moondrop, and Salnotes for great IEM earpieces for under 25 dollars as replacements for these. HOWEVER, when we used our own IEM earpieces, WOW the sound was so much fuller than what I was expecting. On our old 250 dollar setup, my band would want to constantly take their IEMs out of their ears because they didn’t like the sound that came out from the transmitters, but the PTM-33s outperformed and exceeded all of our expectations. The sound was much fuller in the mid and low frequencies while the high frequencies were just right for vocals and especially with the treble coming from the crash cymbals as well as the snare. The bass that was drowned out on our old system was fully there and in our faces but not offensive. Now my band wears them even off-stage because it sounds so good. Suffice to say the battery life on these are doing way better than what I’ve used before. No noticeable drainage after I had the receivers on for practically the whole day with sounds constantly flowing through them. No complaints whatsoever on that end Last and my most favorite thing about this set are the clips on the receivers. NO MORE are the days of broken receiver clips for your waist and pocket! These clips are SO STURDY. Don’t EVER expect the clips to break, or for any of the receivers to fall off while you’re using em or even jumping around because these clips are so strong and sturdy. Conclusion/TL;DR : Score : 15/10 The PTM-33 is an excellent budget IEM system that can measure up to even some of the top names in the game. PHENYX PRO KNOCKED IT OUT THE PARK WITH THESE! Easy-to-use, set up, and has amazing sound quality, range, and battery life. They’ll stay on your waist and pockets and never fall off with its SUPER STURDY high quality receiver clips. Just make sure to purchase new IEM earpieces and try not to use the included ones.

*watch the video review for a quick run down* I want to preface this review by saying nobody influenced me to write this. I am writing this out of my own compulsion to do so, because that’s how stoked I am on this product. All the frustration my band has gone through with other IEM systems we have owned (live performance drop outs, battery doors busting, belt clips flying off, horrible sound quality and volume levels, etc) I had to write this. Read on.. I have nothing but great things to say about this Phenyx Pro IEM system for the price point. Every other sub $500 IEM system my band has used has failed in one way or another, primarily with signal drop outs during live performances which is VERY FRUSTRATING. PROS: -Sound quality is much better than any other budget IEM system you will find. Is it Sennheiser G4 quality? No. But there’s zero latency, and the minimal static noise you might hear is to the point where you’re not gonna dwell on it. -This packs in 4 channels for 4 individual mixes in 1u rack space. WHAT?! It saves a ton of space. -No need to label body packs. Each pack simply pairs to the channel of choice through infrared sensors. Select channel, hold pack to sensor. Done. You can easily switch between IEM mixes or rapidly share mixes with this feature. -Includes rack mounts, antenna cables and holes to mount antennas in front of case. WIN! Having direct line of sight at shows is great, and the antennas fit with the front lid of the case without having to take them off. - VOLUME. These things are easily 5x louder than our previous packs. No need for headphone amplifiers at all. -Input peaking? Input volume control knobs for each channel on front of display. -Easily change frequencies for each channel. Group button and RF channel button for each of the 4 packs. -Quality. Heavier duty plastics and metal. You won’t have battery doors flying off with these. The belt clips are sturdy as well. -Dual inputs to insert a second line for click, another instrument etc. -Loop out to feed another channel with same mix, or out to other audio devices in rack. -902-928mhz freq range, stays out of the way of a majority of signal interference. In fact, we haven’t had them drop out YET! CONS: -MONO. These are not stereo. However, if you’re looking for stereo IEMS you know you’re not going to be spending less than $500 anyways. For us, Mono has been great and we control our own mixes through our XR18 mixer and EQ everything for separation. Mixes are crisp and clean in our ears. -It does includes headphones with tons of extra tips. The tips are GREAT. However, the headphones are NOT. Invest in quality IEM headphones, your ears and audience will thank you. -1/4 in inputs instead of XLR. Honestly, I understand why they did this from a design perspective, fitting 8 XLR inputs and loop outs would not fit in 1u rack space. The vast majority of people using this will likely have XLR out on their bus outs from mixer, so including XLR female to 1/4 adapters would make this product 11/10. I bought 4 XLR to 1/4in adapters here on Amazon for $9.99. Buy those as well if you’re going to purchase this. -Frequency bandwidth is only 25mhz of wiggle room for all 4 frames packs. If there is interference between 900-928mhz, you’re gonna be hosed. This is the biggest sacrifice you will have with this product in comparison to higher end brand name (shure, sennheiser) as they have much higher bandwidth per channel. Nevertheless, I am in a pop punk band and we play shows very often and we tour, these have so far been rock solid at the smaller venues we play. If you’re playing a festival or something, I would probably purchase these with the Phenyx Pro antenna paddles which conveniently connect right up to these as well. I liked this product so much, and have dealt with so much frustration from previous IEM systems that I was compelled to write this for everyone who is considering upgrading. If you’re in a band, and you’re not playing festivals, these are a complete no brainer. No drop outs, volume is killer, quality is amazing, and features are unparalleled for sub $500. You simply can’t beat it. Long story short, we are VERY happy with this purchase. Get it, you won’t regret it.

4/5 stars after using this system for a year. Pairs perfectly with the Presonus Studiolive 16R for high density IEM setup that is incredibly easy to wire up an the IR one touch sync function is amazing! Audio comes in crystal clear and the packs cleanly drive power hungry ear buds. I can get at least half a football field away before the signal starts to drop off. Every once in awhile they will cut out but it's for a split second and definitely not a deal breaker. Mixed thoughts on the durability of the packs, they are plastic, luckily none of the band members have dropped them on a hard floor. Pack antennas a pretty thin as well. I recommend getting a hardshell waterproof case to store the packs in if your rack doesn't have a storage drawer. Rack installation was a challenge with my gator roller rack as the rails are a heavy duty and a tight fit the covered the antenna holes so the provided BNC connectors for the rack ears did not fit. I had to buy separate BNC panel connectors and new BNC cables because the ones provided were not crimped very well and the connectors broke off. For the cost of putting an entire band on wireless IEMs you can not beat this setup!

I run an outdoor stage in South Florida, RF is incredibly crowded making it tough to run wireless systems. Previously I’ve been running Sennheiser IEM systems (500mhz range) but constant drop outs have kept this from being a flawless experience. Always complaints from the band members regarding the drop outs and interference. Figured I’d give the Phenyx PTM-33 a try for a few reasons….. 1. Frequency, 900mhz. The 500mhz bandwidth is absolutely packed down here, as is 2.4ghz (as well as 5ghz),but 900mhz? Wide open. 2. 4 channels in a single rack space! Sure two Sennheiser / Shure units running Mono gives me 4 channels in a single rack space. But, the frequencies offered and the price for THAT system….. 3. THE PRICE! $500 for 4 mixes? Remember the old Shure P9HW packs that cost $550? One channel, and costs $50 more than the PTM-33! You can’t beat this price! For the price of ONE Sennheiser system, you can buy TWO PTM-33’s, giving you EIGHT channels! Outrageous! So far I’ve done Ten, two hour shows with this unit. Not a single drop out, no interference, not one issue. Gave a 5th band member my Sennheiser this weekend, drop outs and interference all over the stage. I’ve also had several people comment on the sound quality and how much better it is than the Sennheiser I previously used. One thing that concerns me, is the build of the packs. Sennheiser are metal, rugged packs. Mine have been dropped a zillion times and they work as expected. They look terrible now, but they still work. The Phenyx is plastic, which shouldn’t really be an issue and is lighter weight than the Sennheiser packs. I would definitely rather have a metal pack, and hopefully they offer them in the future. The antenna though…. They are very fragile. I can see these getting pulled on when a musician reaches back to adjust their volume on the pack and breaking it. This is the only negative I can find with the PTM-33. Hopefully Phenyx will come up with Metal packs, with removable antennas. If you are a venue looking to ditch wedges and bring a MUCH more pleasurable experience to your customers (and musicians)….. If you are a band looking to have your own IEM Rig…. This is an excellent, inexpensive system, I can’t recommend it enough! We have now purchased two more PTM-33’S for our two other venues, which we deployed last week and again - flawless performance!

The PTM-33 IEM system is awesome!! The 1U transmitter unit fit nicely in my 19” rolling rack case, however there are a couple things you should be aware of. First, you will need XLR patch cables and 1/4 inch adapters if your mixing board’s Aux sends are XLR as is the case with my rack mixer. There are no patch cables included. Do yourself a favor and order some XLR to 1/4 inch patch cables when you order the PTM-33. Next, the power cable is not IEC so you will need a small extension cord to plug in the power adapter since it will extend below most 1U power supplies in your rack. If you don’t use a small extension cord, you may have to move something in your rack down to plug in the adapter. I had to move a few of my already racked components which was tricky because my rack is filled pretty full. Once I sorted out the patch cable and power supply situations, I was able to use the system flawlessly at a few gigs recently and I will tell you I am very pleased with its performance. Syncing the receiver packs to the transmitter is simple. We have had no signal drop outs and the sound is really very good even with the supplied ear buds. The best part is that I no longer have to lug and set up floor wedges and compete with stage volume to mix FOH, especially at smaller venues. If you are looking for a budget friendly, good performing IEM system, look no further.

I bought this unit to consolidate my in-ear transmitters from 4U to 1U (4 separate mixes). I own 6 of their single channel units and am using 4 of them in my current gig rack. When I tried to mount the new 1U unit with the antennas mounted, it would not fit between the 19" rack rails. I tried mounting it into 3 different racks just to make sure that the rack was not the issue. After going back and forth with Phenyx support for several days and sending videos and photos, they finally admitted that they made a change to the product dimensions and it no longer supported mounting antennas in the same rack space! Their solution to the problem was to send me a seperate antenna mounting kit that takes up an additional rack space. They made a major change to their products but never updated any of their marketing information... not cool. I ended up modifying the rack ears to allow me to mount the antennas anyway but I will think twice before purchasing anything else from Phenyx. 5/9/2025 UPDATE The channel 1 transmitter kept failing DURING A GIG! The RF meter would for channel 1 would peg to the right and my receiver would drop out completely. Rebooting the receiver did nothing. The only fix was to reboot the transmitter, and then it would happen again in a few minutes. I ended up just using a floor wedge as my monitor for the rest of the gig. I won't be using these any more due to their poor reliability. I will attempt to get some resolution from the seller but since it's been almost a year since purchase I doubt they will do anything for me. UPDATE 6/9/2025 I emailed their customer support and, after answering some questions, they sent me a replacement unit free of charge. That's good customer service. I updated my review to 4 starts for that. I will replace the defective unit in my rack and use it for a few weeks before giving a final update here. UPDATE 4/13/2026 Same issue has started happening again on the new replacement rack unit. Channel 1 display freezes with meter all the way to the right and I lose all sound in the belt pack. I've contacted Phenyx Pro support again but this looks like they may have a component failure problem. These repeated issues are degrading my confidence in this particular model. I can't have my in-ears failing while on stage in the middle of a set.

Love this! For beguinners and easy to set up! Happy with the product. I am wondering if we could buy more individual receivers and link them to the same box.

The system works really really well. I'm a drummer and the volume has always been an issue, but these can be set to painful volumes which is awesome. The sound is very very good, the kick drums sound rich and there's no latency because it is true UHF. Occassionally, there "may" be a sudden millisecond of drop but it does not happen often. I believe with drummers there's so much metal and hardware around us, that the drum cage and gear almost act as a faraday cage to the signal. I've gotten some antenna boosters to aid in that for myself. I'll update again as I put it further into the workings of a real band.