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Stealth 1 is the portable UHF mono wireless system that every live sound engineer needs in their arsenal. With Stealth 1 any XLR connection can quickly and easily become a wireless one – audio mixers, powered speakers, outboard gear, and even dynamic microphones.
Stealth 1 has a feature set that ensures your needs are covered. With a range of up to 100+ft (line of sight) you have the freedom to roam cable-free. With 16 selectable UHF channels you can avoid pesky interference. And with unlimited running time via USB and 4+ hours running time using a single AA battery you can count on Stealth 1 to last through your entire set.
FIDO
Reviewed in the United States on August 31, 2024
This product is great, they are very easy to set and use. The sound quality is great, the receivers are compact. The only downside is they are not rechargeable they need to be plugged in. They are worth the money.
Joe Pacific
Reviewed in the United States on July 26, 2024
I have a Shure wireless microphone system that feeds into a Yamaha audio mixer and from there it goes into a laptop computer for broadcast on the web. The mic receiver, audio mixer and laptop are in the back of the conference room and I am unable to run a long audio cable from the mixer to the speakers located in the front of the room, as the cable would need to pass through a high foot traffic area. The Alto MKII-UHF wireless audio system solved my problem by allowing me to wirelessly transmit the audio signal from the mixer in the back to the powered speakers in the front of the room. The audio is crisp and clear and I have not observed any audio delay. No batteries are required as the Alto receiver and the two transmitters all come with power supplies. Highly recommended.
huet
Reviewed in France on November 22, 2024
Simple d utilisation .Bon rapport qualité prix.
Philipp H
Reviewed in the United States on April 5, 2024
I was very excited about receiving this wireless system. As soon as it arrived, I unpacked it, read the instruction manual and set everything up.I let the receivers scan for available channels and synced the transmitter up accordingly. Then I powered up my speakers and to my unpleasant surprise immediately I heard a very noticable mix of hiss and rumble.Tried the different squelch settings to no effect. Unplugged the receivers and instead hooked up my xlr cables, to make sure nothing was wrong with my speakers, unlikely for QSC speakers, but wanted to make sure it's not a defect from my side. Connected to the xlr cables the hiss/rumble disappeared. So I reconnected the stealth mkII receivers again to try searching for another channel. Now it took them over a minute to search and when they found and set themselves to supposedly free channels my speakers almost blew out my eardrums because all that came through was an extremely loud interference noise.Luckily I turned the speakers off before they could be damaged.Syncing up the transmitter to the channels didn't help. Now it just added the occasional burst of interference noise.I also tried to only use one receiver to make sure they were not interfering with each other, even though they both ran on different channels and properly set to left and right.The transmitter was also a mere 6 feet away with direct line of sight, so no obstruction nor too far of a distance of any kind.Knowing how frequencies can interfere with each other on live events, especially when other DJs or musicians set up their wireless equipment in neighboring rooms, I can absolutely not rely on these. Imagining a bride, a celebrant or just anyone standing next to a speaker when it's silent or playing background music, then interference happens and shoots out this ear piercing interference pattern into a person's ears, I'd lose credibility, potentially damage my speakers, because I won't be standing right next to them, to turn them off right away, potentially a lawsuit for bodily injury in form of hearing damage(mine are still ringing as I write this review) and definitely lose recommendations for potential new clients.I so wish the stealth system had worked but if it already gives me these problems at home, in a semi rural area, it'll definitely give me more problems in crowded places. I cannot take that risk and sadly will have to return them back to Amazon.
Moisés Franco
Reviewed in Spain on April 26, 2024
Es un sistema que acepta tanto niveles de micro (señal muy baja) como de línea (más fuerte), así que imagino que el transmisor no cuenta con un previo que eleve los niveles de micrófono. Cuando se usa con un micro dinámico, el sonido se transmite a bajo nivel y hay que compensar en la mesa de mezclas al recibir. Al hacerlo, además de aumentar el volumen del micro también lo hace el ruido de transmisión UHF. Este "soplido" queda camuflado si se trata de una mezcla de varias fuentes de sonido, pero resulta incómodo si necesitas escuchar únicamente el micrófono. Si tuviera un conmutador MIC/LINE, se aplicaría la amplificación correcta en la posición de micro y estaríamos hablando de un sistema perfecto.
francis ledford
Reviewed in the United Kingdom on September 15, 2023
This is a well made product that is easy to setup and use. This product is a revelation allowing powered speaker placement anywhere there's a power socket. It really shows itself off when you are connecting 3 or more powered simultaneously (I've tried it with 6 speakers which worked great(Six receivers used)).The only issue with this device is that, if the transmitter is sited too low you will get audio drop outs when people walk pass.I've made a tripod tower that allows the transmitter to sit at around 5-6 Ft high off the ground which has eliminates the drop out problem.There's also no loss in sound quality.This device plus additional receivers are quite expensive and should be looked as an equipment investment. These devices are worth the investment from a time saved and easier setup routine.Great product.
Guybrush Threepwood
Reviewed in Germany on May 27, 2023
Für den Privatgebrauch oder bei Nutzung einer Hintergrundbeschallung mit niedrigen Pegeln ausreichend. Wen man eine PA damit aber voll ausfahren möchte, nicht zu gebrauchen, da der Rauschpegel in leisen Phasen dann zu hoch ist.
stefano69
Reviewed in Italy on January 28, 2023
La qualità del suono è ottima. Nessun ritardo. Lo si può usare con tutti i microfoni. La batteria dura poco , è consigliabile portarsi un set di batterie durante una serata, ma solo per il trasmettitore. In quanto il ricevitore lo si può collegare ad un alimentatore qualsiasi con cavo usb. Tutto sommato è una ottima alternativa ai cavi audio che spesso limitano il raggio d'azione.
HGDJ
Reviewed in the United States on November 23, 2022
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James
Reviewed in the United States on November 15, 2022
I needed this for two specific applications: wedding ceremonies and satellite speaker situations. In both settings, I don't use extension cords and either can't or don't want to run XLR cable. The Stealth 1 Mono system is ideal for this:It sets up fastIt's easy to useIt works.I've spent a lot of time with the Stealth 1 Mono wireless system. I've tried it in many situations. When you follow the instructions EXACTLY, it works perfectly: Set the speakers where you want them. Turn the transmitter on first and THEN the receiver. IF you turn the receiver on first, the whole thing becomes intermittent.I've tested the battery life twice with rechargeable batteries. They lasted 4.5 and 5 hours before the wireless turned off. That's more than enough time for wedding ceremonies, cocktail hours and short gigs. I've also ran it 80' apart without any issues. I haven't needed it to go further than that, but Alto says it will go 100'. I've also used it with the output on a mixer to the speaker and it worked flawlessly.UPDATE: I had the same static issue as HGDJ below. But it only happened when I was using this with a Bluetooth input on the speaker to send music to it on a test. As soon as I plugged the music directly into the speaker input via a cable and sent the signal out to the other speaker via the Stealth 1, the static went away and it worked perfectly. Maybe you can't use Bluetooth AND the Alto Stealth 1 at the same time?The Alto Stealth 1 Mono solves my problem perfectly. Would I use this with the band in a critical "this can NOT fail" kind of situation? I don't think so. If I wanted a wireless speaker system for the bands FOH system, I'd go with the Alto Stealth Wireless Pro.
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