User avatar
DJ2226
Registered User
Registered User
Posts: 1415
Joined: Sat Mar 30, 2013 3:50 am
Real Name: Dennis Seldon
YouTube Username: DJ2226
Location: Columbus, Georgia

Lion King Sirens On 60 Hz

Sun Aug 28, 2022 2:36 am

I'm sure most of you here are familiar with the company Lion King Signals. TLDR for the uninitiated: Lion King is a Chinese company that produces a lineup of various emergency warning equipment including large motor-driven sirens, mainly of the AC variety. They've been mentioned here a few times mostly because of their direct copies of sirens from Federal Signal, namely the LK-2001, LK-Sentry, and LK-M2 which are all basically direct copies of the 2001-SRNB, Eclipse-8, and Model2 respectively. They've also made a copy of the Chrysler Air Raid Siren that they dub the LK-Defender, which is actually a nice upgrade from the original featuring a cab to protect the equipment from the weather and at least some level of hearing protection to keep your eardrums from popping like an overinflated balloon from about 138 dB. :P They also have some sirens that resemble the STH-10, a Sentry/2T22, and a Model 5. Those sirens bear the look, but the actual cores of the sirens are based around the company's own designs. They also have some other sirens that resemble E-57s or hornless Pakita sirens and a few models that resemble the "Carter" style sirens from the UK. The direct copies all bear their original counterpart's port counts and run on the same types of motors (diesel engine in the case of the LK-Defender), while the knockoffs and originals are all mostly 10 port with the dual chopper sirens coming with a 10/11 port option and are all AC powered with induction motors.

Given that their direct copies of American sirens run on either an engine of brushed DC motors the pitch of the sirens will vary, however their strictly AC-powered sirens run on either three-phase or a single-phase induction motor with capacitors. Those motors are RPM limited to the frequency of the incoming voltage. Since most places outside the US use 50 Hz AC two pole motors that these sirens typically run on will spin at roughly 2850 RPM vs 3500 RPM here in the states. With most of their sirens being 10 port that means they'll sound more like an overreved 8 port siren, usually around 480 Hz. Besides about half of Japan, a lot of places in Asia run 50 Hz, but the Philippines happens to be one of the exceptions to the general frequency standards and runs a 60 Hz grid. There happen to be a few companies in the country that actively sell Lion King sirens, and one of them runs a YouTube channel where they've posted a few videos of siren demos and installation jobs. Of course with the incoming voltage to the sirens being 60 Hz, they sound like any typical 10 port siren here in the states like a 14V or Siro Drone. So far I've found videos of their rather large LK-JDL550 siren, which from what I understand is the biggest that Lion King sells at the moment with a 10 HP motor, the LK-JDL400 which has a roughly 3 HP motor and comes in both single-phase and three-phase, and the LK-STH10A which has a roughly 5.5 HP motor. The LK-STH10A and LK-STH10H (T-121 lookalike) use the same core which is based on the LK-JDL480 albeit with a slightly different rotor design that gives them a slightly more "choppy" or raspy sound. The rotor is similar to the one found in the Screamer S-5/7.5 except for its 10 port instead of 9 and has straight but directional vanes instead of slanted ones. The RM-130 is basically an overreved Screamer, so with the LK-STH10A you'll notice that it has a very similar tonality to one. This is shared amongst the sirens that have the motor and intake for the siren chopper on opposite sides. The rotor that comes with the ones with them on the same sides have their center hubs protruding slightly above the height of the rotor with part of the vanes cast into them. If I had to guess that plus the motor's partial obstruction of the intake smooths out the airflow and gives them a more smooth sound. They are kinda wonky sirens, but they seem pretty stout.



https://www.youtube.com/watch?v=lGshbJ1j5PA



https://www.youtube.com/watch?v=vs9klNThJD4



https://www.youtube.com/watch?v=poPyVU98osE



https://www.youtube.com/watch?v=wj052y1htmA

This one's from a different channel but looks like a LK-JDL400. Sounds a little better than the demoed one from before.


https://www.youtube.com/watch?v=Q3iC-3_J-1k


If you want to see more videos of their sirens, albeit on 50 Hz, you can look at these channels:
https://www.youtube.com/user/TechnopolJSC
https://www.youtube.com/c/vietantoan
https://www.youtube.com/channel/UCNsXrH ... X45hToa4ag
Proud owner of a Model 1.
DJ2226's YouTube Page

User avatar
ModifiedCyclone125
 
Posts: 33
Joined: Thu Apr 08, 2021 10:26 pm
Real Name: bruh momento 2
YouTube Username: Consolidation1282
Discord: Consolidation1282#1282

Re: Lion King Sirens On 60 Hz

Sun Aug 28, 2022 8:54 pm

I actually remember watching the first 4 videos like a month ago, The LK-STH10A video is probably one of the only 2 videos of it sounding off as of the time I'm writing this. The other video of it sounding of the siren sounding off is on the same person's channel that uploaded the video linked here, but it's the same place and the siren is not shown, only heard. Pretty interesting to hear Lion King's sirens running on 60 Hz though, Especially since I'm also interested in their sirens and plan on getting one of them (the LK-M2 specifically if I can even save up money for it).
Some guy who is interested in Taiwan's siren system as well for a few others,

Have I heard a siren? Yes, The Darley 3V8 In Columbia, CA Doing a noon blast. Do I own a siren? Sort of, A Vixen Horns Hand Crank Siren.

Return to “Videos and Media”

Who is online

Users browsing this forum: No registered users and 32 guests