This calculator uses the average watt rating (100 Watts) for a Stereo. You can input your Stereo’s details to calculate the exact usage and cost of your device.
Hours used per day
Enter how many hours per day you estimate you run your Stereo. If it is less than one hour use a decimal. For example, 30 minutes would be .5 and 15 minutes would be .25.
Power used (Watts)
Input the wattage of your Stereo. If you are unsure enter the average wattage for a Stereo: 8.
Your energy rate
Enter the price per kilowatt-hour (kWh) you pay for electricity. If you are unsure you can use the average rate per kWh in the US (10 cents) or find the kWh rate in your area here.
When you are planning to buy a new stereo, consider the amplifier output power, which is expressed in watts per channel. Considering how much energy it requires is determined by the kind of speakers you have, the size and acoustics of the room, the volume and quality expectations you have for your music, and other factors.
So how many watts are required for your home theater or stereo? Well, sadly, that varies.
How much do I need, then?
A lot depends on how well you listen and how well you speak. If your speakers are 90 dB efficient and you enjoy listening to loud, uncompressed music, 200 Watts should be more than plenty for you. 50 Watts is plenty if all you hear is jazz and light classical music, and you don't expect them to rock the house.
Horns and other speakers with higher efficiency consume relatively little power. This is because one Watt can already produce strong sound at 95dB. Four times as many Watts are required to create an additional 6dB of sound pressure. However, we're still talking about using less than five Watts to achieve proper pressure levels of more than 100dB and up to 32 Watts for rock concert levels.
It's wise of you to take your audio or other devices into account. A stereo typically consumes 12 watts per day. This will vary according to how frequently you use the stereo, but it's still a valuable figure to keep in mind!
Therefore, checking into a battery with larger amps would be worthwhile if you want to upgrade your audio to guarantee everything functions as it should.
ENERGY CONSUMPTION OF STEREO: Factors affecting power consumption
- Speaker Efficiency: Some speakers produce a lot of sounds using only a small amount of power or are very efficient. To create the same sound volume, other speakers require a lot of electricity. Large paper cones, horn-loaded tweeters, and ports (holes) in the cabinets are characteristics of efficient speakers.
- Room Size: assuming all other factors are equal, a larger room will require more power to fill. It would be best if you had a stereo with at least 25 watts per channel with effective speakers or 40 watts per channel with non-efficient speakers for a space that is 18 feet by 18 feet and has 9-foot ceilings.
- Type of Music: Obviously, you'll need more strength than the guy whose ears hurt at even the slightest suggestion of decibels if you listen to music loudly. Additionally, rock, reggae, and rap listeners enjoy amplifying the bass compared to the rest of the music. Still, these genres of music are also bass-driven. If so, you'll need speakers that can produce extremely low frequencies and the necessary watts. Again, an additional 125 watts or so for bass reinforcement should be sufficient for the rumored 18 × 18-foot space.
ENERGY EFFICIENT STEREO AND SOUND SYSTEM TIPS
When creating an established sound system, energy-efficient amplifier technologies are a crucial factor to consider. A more effective system will save more money in the long run and have more durable equipment. The advantages system efficiency offers for our environment should also be mentioned.
What can you do, then, to make sure your system is operating effectively? Here are five quick ideas to get you started:
- Use Amplifiers with PFC Power Supplies. One benefit of PFC technology is that it achieves a "unity" power factor (power factor of 1). In other words, all the energy entering the system is actual energy, and very little of it is lost or converted to heat. In essence, this lessens the need for elaborate cooling systems and produces the highest power efficiency possible.
- Use items with auto standby mode. In this instance, a feature known as Auto Standby Mode engages when the output level falls for a user-defined period below a predefined threshold level. For example, you may set Auto Standby Mode to activate after five minutes if the audio output level drops below -80 dB.
- Learn about PoE (Power Over Ethernet). PoE is a unique feature that enables users to manage and keep an eye on their devices without turning on the AC main. In other words, the machine uses a lot less power as a result.
- Take advantage of External I/O. External I/O enables you to remotely turn on and off your amplifiers when you're managing them from an outside source. The amplifier thus significantly lowers the AC power drain. As a result, relatively little power is needed while the unit is not in operation.
- Monitoring the Data. Each installation is unique, in actuality. In order to maintain effective performance, it is therefore vital to keep an eye on the system performance statistics and make necessary adjustments.