1,518 of 1,565 people found the following review helpful
This will wake you up,
This review is from: Sonic Alert SBB500SS Sonic Bomb Loud Dual Alarm Clock with Bed Shaker (Home)
I've had a history of sleeping through alarm clocks. This past summer I lived with a few other people and they would come into my room in the morning and yell at me, because my old alarm would wake them up but I would sleep through it, despite the fact that it was positioned right next to my head.
While I do not believe this alarm reaches 113 decibels or that it is louder than a jackhammer, I will say that it is much louder than your standard alarm clock. The vibrator works very well and is guaranteed to wake up even the deepest of sleepers. You can put it under your mattress, which will cause the majority of it to vibrate, or you can place it against a solid object which will cause a loud vibrating noise. I opted to keep mine under my mattress.
Many people have posted that their units burned out or that it kept time incorrectly. This is because they failed to look at the directions. In the directions that come with the alarm clock there is information detailing a switch on the backside of the unit. It is labeled 24hrs 50hz, 12hrs 50hz, and 12hrs 60hz. This switch not only controls the time format(12 hour vs. 24 hour), but also controls the tuning of the internal electronics. In European countries, 24 hour time format is standard, and wall outlets alternating current runs at a frequency of 50hz. In America, most people use the 12 hour time format, and our electrical outlets operate at a frequency of 60hz. What this means is that if you have this switch in the wrong position, you run the chance of damaging your unit, and you will notice that the time will not be accurate(it says this in the manual).
The only thing that keeps this alarm from getting five stars is the face that I can't use the 24 hour time format. I live in the US but work on a military base and have become accustomed to the 24 hour time format.
tldr; This alarm will wake you up, just make sure to read the manual or you run the risk of incorrect time and a fried alarm clock.
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Showing 1-10 of 16 posts in this discussion
Initial post: Apr 25, 2010, 4:11:31 PM PDT
Last edited by the author on Apr 25, 2010, 4:12:13 PM PDT
Michelle Burchfield says:
Thank you for mentioning the time format/hz setting. I might buy it & was concerned about its reliability; good to know about the "human error" factor when reading the other reviews.
Posted on Oct 18, 2010, 10:49:59 AM PDT
Video Viewer says:
You do need to have it set on the correct hz setting, however that is not enough.
The clock is poor quality. I had the clock set at the correct setting for the US and it still runs very fast and the time still needs to be manually adjusted back every few weeks. If it is set incorrectly, the time will be off within hours.
So, the blame is poor design of the clock, not customers who "failed to look at the directions."
Posted on Mar 15, 2011, 3:49:10 AM PDT
Posted on Apr 27, 2011, 3:05:41 AM PDT
Last edited by the author on Apr 27, 2011, 3:06:49 AM PDT
Amazon Customer says:
I made sure that mine was set to the proper 60Hz 12HR setting for America as in the instruction booklet and it failed to keep time correctly; Today is the 27th of April and I purchased it on April 3rd. Clearly this problem is deeper than just human error.
I would like to mention that I'll be returning this item asap.
Posted on Dec 13, 2011, 8:51:45 PM PST
Adam Kollin says:
The newest model of the Sonic Bomb can be programmed to display in either 12 or 24 hour format. There is no longer a switch to select between 50/60 Hz for use in the USA or Europe. So the user can no longer set the controls in a way that makes the clock run too fast or too slow. You can also now program the length of the snooze and for how long the clock will sound and vibrate if you are not home to turn it off.
In reply to an earlier post on Jan 5, 2012, 10:46:19 AM PST
Don J. Pham says:
Just received mine in the mail.
And I'm just confirming with Adam Kollin's statement.
There is no longer an issue with the 50/60 Hz.
Just a switch for 12/24 hour formats.
In reply to an earlier post on Jul 19, 2012, 8:18:37 PM PDT
I concur. I DID read the manual and the clock has been set at 12 hr, 60 hz since I got it. On mine, the time sometimes resets within hours after resetting it. Love the volume and it wakes me up without fail, just not always at the time I actually wanted to arise.
Posted on Jul 19, 2012, 8:29:56 PM PDT
Last edited by the author on Jul 19, 2012, 8:30:33 PM PDT
In reply to an earlier post on Jan 4, 2013, 1:47:48 PM PST
Have you had any problems with your clock since this change?
In reply to an earlier post on Jan 4, 2013, 2:39:40 PM PST
Amazon Customer says: