How Loud is the Sharp Big Bang Alarm Clock? Decibel Test & Review

Waking up early is hard enough, but for deep sleepers or people with hearing challenges, a normal alarm clock just isn’t enough. The Sharp Big Bang Alarm Clock has become popular because of its promise: “wake even the heaviest sleeper.” But how loud is it, really? If you’re looking for a clock that’s impossible to ignore, you want numbers, comparisons, and the truth about what those decibels mean in real life. This article takes a close look at the sound level of the Sharp Big Bang Alarm Clock, compares it with other loud clocks, and gives you everything you need to know before buying.

Understanding Alarm Clock Loudness

Before getting into specifics, it’s important to understand how loudness is measured. Sound is usually measured in decibels (dB). The higher the number, the louder the sound. But the decibel scale isn’t linear—it’s logarithmic, which means every 10 dB increase feels about twice as loud to the human ear.

Some examples:

• 30 dB: Quiet library
• 60 dB: Normal conversation
• 80 dB: Busy street traffic
• 100 dB: Chainsaw or nightclub

Alarm clocks for normal sleepers are usually around 70–80 dB. For heavy sleepers, clocks reach 100 dB or more. Anything above 85 dB is considered very loud and can be uncomfortable if too close to your ear.

The Sharp Big Bang Alarm Clock: Specs And Sound Level

The Sharp Big Bang Alarm Clock is designed for one purpose: to get you out of bed, no matter how tired you are. According to Sharp’s official specifications and user reviews, the Big Bang Alarm Clock has an alarm volume of 113 decibels at its maximum setting.

To put this in perspective:

• 113 dB is about as loud as a live rock concert or a jackhammer from a short distance.
• This is significantly louder than a standard smoke alarm.

Here’s a comparison table showing how the Sharp Big Bang stacks up against common sounds:

How Does 113 Db Sound In The Bedroom?

A sound of 113 dB is extremely loud in a small space like a bedroom. In fact, if you’re within a few feet of the clock, you’ll feel the sound as much as hear it. Many first-time users are genuinely startled by how powerful this alarm is.

Some practical things to consider:

• Immediate wakefulness: Most people cannot sleep through this alarm, even if they are heavy sleepers or wear earplugs.
• Physical discomfort: At full volume and close distance, 113 dB can be uncomfortable or even painful. That’s why it’s smart to place the clock a few feet from your head.
• For shared rooms: The alarm is likely to wake everyone in the room—and possibly in neighboring rooms as well.

Real-world User Experiences

Many users purchase the Sharp Big Bang Alarm Clock after struggling with traditional alarms. Here are some common experiences:

• Heavy sleepers finally waking up: Many reviews mention people who have slept through fire alarms or multiple phone alarms finally waking up on time.
• Deep sleepers and hearing impaired: Users with partial hearing loss report success, especially when placing the clock near their bed.
• Complaints about volume: Some find the alarm too loud, even at its lowest setting. A few users cover the speaker with a cloth to reduce the sound.
• Neighbor complaints: There are stories of family members, roommates, or even neighbors being woken up. If you live in an apartment, consider your surroundings.

A typical review says: “I used to sleep through three alarms and my phone. The Sharp Big Bang literally jolted me awake. It’s so loud, I have to get out of bed to turn it off—mission accomplished!”

Adjustable Volume: Is It Necessary?

Not everyone needs the full power of 113 dB. The Sharp Big Bang comes with adjustable volume settings, allowing you to turn the alarm down if you find it too loud.

• Low: Around 80–90 dB (still louder than most clocks)
• Medium: About 100 dB
• High: Up to 113 dB

This range gives you flexibility. However, even the lowest setting is strong enough to wake most people. There is no “quiet” option—this clock is built for power, not subtlety.

Special Features That Enhance Loudness

The Sharp Big Bang Alarm Clock doesn’t just rely on sound. It often includes extra features to ensure you wake up:

• Bed shaker: A powerful vibrating pad that you place under your pillow or mattress. This is especially helpful for people with hearing loss.
• Flashing lights: Some models have a strobe light that flashes with the alarm, adding a visual cue.
• Large, easy-to-read display: Useful for people who are groggy or have vision challenges.

These features are important because they add multi-sensory cues—sound, vibration, and light. Waking up is more certain when your body gets more than one type of signal.

Comparing The Sharp Big Bang With Other Loud Alarms

How does the Sharp Big Bang compare with other loud alarm clocks? Here’s a direct look at popular options:

This comparison shows that the Sharp Big Bang is at the top of the loudness scale, tied with the Sonic Bomb. Both are designed for people who need the strongest wake-up call. Cheaper or classic clocks, like twin-bell alarms, are much quieter.

Who Needs A 113 Db Alarm Clock?

Not everyone needs an alarm this loud. The Sharp Big Bang is made for specific groups:

• Very deep sleepers: People who regularly sleep through multiple alarms.
• Hearing impaired: Users with mild to moderate hearing loss.
• Heavy medication users: Some medicines make people harder to wake.
• Shift workers: Those who need to wake up at odd hours when their bodies aren’t expecting it.

If you live alone, or your sleeping area is far from others, a loud alarm is less of an issue. But if you have close neighbors or a light-sleeping partner, think carefully before using the highest setting.

Practical Tips For Using The Sharp Big Bang Alarm Clock

To get the most from this clock—and avoid problems—try these tips:

• Test the volume: Start at the lowest setting and increase only as needed. 113 dB is extremely loud.
• Place the clock wisely: Keep it a few feet from your head, not right by your ear, to avoid discomfort.
• Use the bed shaker: If you want a strong wake-up without waking everyone, try the vibration feature.
• Consider ear health: Don’t put your ear close to the speaker when the alarm is about to go off.
• Warn housemates: Let others know you’re using a loud alarm, especially in apartments.

Many users overlook the power of the vibration pad. This feature can be almost as effective as sound, and it’s much less likely to annoy others.

Common Mistakes When Buying Loud Alarms

Beginners sometimes make mistakes that lead to disappointment or annoyance. Here are pitfalls to avoid:

• Assuming louder is always better: For some, 90 dB is enough. Higher volume can be painful and cause conflicts.
• Ignoring vibration features: Many people focus only on sound, missing out on the value of the bed shaker.
• Not checking adjustable volume: Some models don’t let you control loudness, which can be a problem.
• Placing the clock too close: Direct exposure to 113 dB near your ear can be harmful.
• Not considering roommate situations: Super-loud alarms can cause household stress.

Safety And Ear Health

Sound above 85 dB can cause hearing damage if experienced for long periods. The Sharp Big Bang is safe for short bursts (like an alarm), but you should use it responsibly:

• Don’t leave the alarm ringing for too long.
• Use the lowest effective volume.
• Keep the speaker a reasonable distance from your head.

If you have pets, be aware that loud alarms can also frighten them. Some users find their dogs or cats are startled by the Big Bang’s alarm.

Value And Reliability

The Sharp Big Bang Alarm Clock is not the cheapest on the market, but for many people, it’s worth the investment. The key value points:

• High reliability: Most users wake up every time, no matter how tired they are.
• Durable build: The clock is designed to last and handle daily use.
• Multiple cues: Sound, vibration, and light make it effective for a wide range of users.

It’s a good idea to check the warranty and return policy before buying. Some retailers offer a 30-day return if the clock is “too effective” or not suitable.

For more technical details and hearing safety information, the CDC has a helpful reference on noise levels and hearing risks.

Is The Sharp Big Bang Alarm Clock Worth It?

For most people who buy it, the answer is yes—especially if you’re desperate for a reliable wake-up. The main reasons:

• It works—almost no one sleeps through it.
• Multi-sensory features—helpful for people with different needs.
• Adjustable volume—lets you find your comfort level.

But it’s not for everyone. Light sleepers, people with thin walls, or those who dislike loud noises may find it too much. If you need to wake up but don’t want to disturb others, try the bed shaker first.

Frequently Asked Questions

How Loud Is The Sharp Big Bang Alarm Clock Compared To A Fire Alarm?

The Sharp Big Bang’s maximum volume is 113 dB, which is similar to or slightly louder than most home smoke alarms (usually 85–110 dB). Both are designed to be impossible to ignore, but the Big Bang is optimized for waking people, not just alerting them to danger.

Can The Volume Be Turned Down?

Yes, the alarm has adjustable volume settings. The lowest setting is still quite loud (about 80–90 dB), but you can set it lower than the maximum. Always start at the lowest volume to avoid discomfort.

Will It Wake Someone With Hearing Loss?

The combination of loud sound (113 dB) and a bed shaker makes this clock a top choice for people with mild or moderate hearing loss. For severe or total hearing loss, the vibration and flashing light features are most important.

Is The Sharp Big Bang Alarm Clock Safe To Use Every Day?

Yes, if used correctly. The alarm only sounds for a short period, which is safe for hearing. Avoid placing it directly by your ear, and use the lowest volume necessary. Don’t use it as a toy—keep it away from small children.

Does This Alarm Disturb Other People In The House?

At full volume, the Big Bang is likely to wake others nearby—especially in apartments or shared homes. If this is a concern, use the bed shaker feature, place the clock farther away, or warn others before using it.

Waking up on time doesn’t have to be a struggle. The Sharp Big Bang Alarm Clock is one of the loudest and most reliable alarms you can buy. Just remember: with great volume comes great responsibility. Use it wisely, and enjoy finally starting your day on time.