Hz generator

Certification: US EPA Certified Stationary Emergency|US EPA Tier 4 Certified Stationary Non-Emergency

100 ekW Diesel Generator Set. Producing reliable power of 100 ekW at 60 Hz, our D100 GC diesel generator sets designed to ISO 8528-5 transient response requirements. All D100 GC generator sets meet EPA Stationary Emergency (Tier 3) emissions standards.Feb 7, 2024 · The audio frequency spectrum spans the frequency range of 20 to 20,000 Hz, defined by the lowest and highest frequencies perceivable to a healthy human ear. Understanding the qualities and characteristics of various frequency bands within this range, however, requires some examples and background context. Whether you’re working on a mix or ... Feb 2, 2024 · Notes. • This app generates frequencies from 1 Hz (infrasound) to 22000 Hz (ultrasound), and supports decimal values (e.g. 7.83 Hz). • Available waveforms for the generated signal are: sine, square, triangle and sawtooth. • Visit the settings to customize the sound generator behaviour: define a timer, enable octave buttons, and more. Home / Products / Diesel Generators / 30REOZK, 60 Hz. 30REOZK, 60 Hz. 30REOZK, 60 Hz. Find A Distributor. Standby Range (kW/kVA) 23-31/23-39. Prime Range (kW/kVA) 21-28/21-38. Fuel Type Diesel. Frequency 60 Hz. ... Generator Heaters. Line Circuit Breakers. Lockable Emergency Stop. Follow us on to find the latest updates on our products. …114 - 200 ekW Diesel Generator Set. Producing reliable power from 114 to 200 ekW at 60 Hz, our C7.1 diesel generator sets designed to ISO 8528-5 transient response requirements. All C7.1 generator sets are available with a choice of emissions levels.In general, most commercial generators can be converted from 60 Hz to 50 Hz. The general rule of thumb is 60 Hz machines run at 1800 Rpm and 50 Hz generators run at 1500 Rpm. With most generators changing the frequency will only require turning down the rpm’s of the engine. In some cases, parts may have to be replaced or further …1,200 W. 3,600 W. TOTAL. 2,950 W. 6,550 W. As you can see in our example above, if we add up all running watts of our appliances we get the number 2,950 – so we are well within the 4,000 running watts limit (850 + 700 + 50 + 150 + 1,200 = 2,950).

Keyboard Shortcuts. V isualizer • W hite • Pi N k • B rown • J ↓↑ K • H elp. The Missing Frequency. myNoise Binaural Beats generator, is a popular brainwave …The Missing Frequency. myNoise Binaural Beats generator, is a popular brainwave entrainment player on the internet, with hundreds of listeners every day.It covers most frequencies, from low delta (1 Hz) up to low gamma (32 Hz). Recent scientific papers suggest that higher frequencies in the gamma range - and 40 Hz in particular - could be …Feb 2, 2024 · Notes. • This app generates frequencies from 1 Hz (infrasound) to 22000 Hz (ultrasound), and supports decimal values (e.g. 7.83 Hz). • Available waveforms for the generated signal are: sine, square, triangle and sawtooth. • Visit the settings to customize the sound generator behaviour: define a timer, enable octave buttons, and more. Feb 15, 2020 · Pink noise generator, Beep generator, oscillator can be used as latest rife machine, 528 hz player, sound wave generator or beat frequency generator. Hertz frequency generator is an android application that let you generate sonic sound frequencies through android phone. It is easy to use a tool so you can create a variety of infrasonic sounds ... The working heart of this clock generator circuit is MM5369 to generate a clock frequency (standard digital clock) of 60Hz. Because we use the crystal frequency of 3.579 MHz to determine a fixed value of frequency. Therefore, the output is very accurate. The output signal of 60 Hz at pin 1 of IC1 can be used immediately.Kohler Generators. As an authorized KOHLER distributor, General Power can help you meet your power generator needs for industrial, residential and rental systems. From diesel and gaseous generators to transfer switches, switchgear, controls and all related accessories, we ensure every part of your power system is engineered to work together.

114 - 200 ekW Diesel Generator Set. Producing reliable power from 114 to 200 ekW at 60 Hz, our C7.1 diesel generator sets designed to ISO 8528-5 transient response requirements. All C7.1 generator sets are available with a choice of emissions levels.Want to sound test your speakers or tune your instruments? Or simply, do you want to generate sounds and listen to the generated sounds in different frequenc...Generate your own solfeggio frquencies for listening or download for free. Commercial use. ... The 9 Solfeggio frequencies are 174 Hz, 285 Hz, 396 Hz, 417 Hz, 528 Hz, 639 Hz, 741 Hz, 852 Hz and 963 Hz. Check the table below what properties are associated with each Solfeggio frequency.Free, Simple and Easy to Use. Simply enter your desired frequency and press play. You will hear a pure tone sine wave sampled at a rate of 44.1kHz. The tone will continue until the stop button is pushed. The tone generator can play four different waveforms: Sine, Square, Sawtooth and Triangle. Click on the buttons to select which waveform you ...Online Tone Generator. Free, Simple and Easy to Use. Simply enter your desired frequency and press play. You will hear a pure tone sine wave sampled at a rate of 44.1kHz. The …Frequency is the number of cycles completed in 1 sec & duty cycle is the ratio of the time period of high state to the time period of the low state. We can set the 555 to work at the desired frequency by selecting the right combination of resistances & capacitance. Frequency = 1.44 / { (R1 + 2R2) * C1} Also, 555 can produce waves with …

Flights to vegas from los angeles ca.

Generate pure tones of different frequencies and waveforms, such as sine, square, triangle, and sawtooth. Use the tone generator for testing audio equipment, tuning instruments, assessing hearing range, and more. 1600 - 2000 kVA Diesel Generator Set. Producing reliable power from 1600 to 2000 kVA at 50 Hz, our 3516 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step.450kVA/360kW Gaseous Generator 21.9L. Model #MG360 Pricing Based Per Specification. View Details. Generac manufactures a wide variety of commercial generators for use in countries that operate at 50 hertz. TL. v. t. e. An audio frequency or audible frequency ( AF) is a periodic vibration whose frequency is audible to the average human. The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. [1] The generally accepted standard hearing range for humans is 20 to 20,000 Hz.

1000 eKW Diesel Generator Set. Producing reliable power at 1000 ekW, 60 Hz, our D1000 GC diesel generator set is made to meet your needs in standby applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. The generator set is US EPA Stationary Emergency Use Only (Tier 2) …Feb 2, 2024 · Notes. • This app generates frequencies from 1 Hz (infrasound) to 22000 Hz (ultrasound), and supports decimal values (e.g. 7.83 Hz). • Available waveforms for the generated signal are: sine, square, triangle and sawtooth. • Visit the settings to customize the sound generator behaviour: define a timer, enable octave buttons, and more. In general, most commercial generators can be converted from 60 Hz to 50 Hz. The general rule of thumb is 60 Hz machines run at 1800 Rpm and 50 Hz generators run at 1500 Rpm. With most generators changing the frequency will only require turning down the rpm’s of the engine. In some cases, parts may have to be replaced or further …A balanced three-phase 25-kVA, 480 V, and 60 Hz generator is supplying a line current of 20 A per phase at a 0.8 lagging power factor at rated voltage. Determine the complex and real power supplied by the generator. (Note: since the source voltage is not specified as line-to-line or line-to-neutral or as RMS or peak, we assume it is an RMS.kindly we need (MEP-113A, 15 kW, 400 Hz, Diesel Engine-driven) POWER UNIT 15 KW 400 HZ,120/208 volts GENERATOR SET M200 2-WHEEL, 4-TIRE, MODIFIED TRAILER best prices qty 10. January 21, 2018 at 9:15 am . mazen says: Kindly your best ...Reliability: Our 60Hz diesel generators are engineered to deliver consistent power performance. They are designed to keep up with varying loads and provide stable power output, ensuring your operations proceed uninterrupted and smoothly. Efficiency: Diesel generators are lauded for fuel efficiency, and our 60Hz models uphold this reputation.The answer, generally, is that power demand is exceeding the combined generator capability. This means that excessive current is being drawn. Since generation is distributed around the grid it is likely that one generator somewhere will have a high local load which exceeds its circuit breaker trip setting - particularly if it is a small generator.The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s −1, meaning that one hertz is the reciprocal of one second. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide …

The ultimate Frequency Generator App is designed to help you achieve optimal sleep and laser-like focus. Whether you're struggling with insomnia or seeking enhanced concentration during work or study, this frequency sound and tone generator app is your gateway to a calmer mind and improved productivity. - Calm your restless mind and banish ...

Generate your own solfeggio frquencies for listening or download for free. Commercial use. ... The 9 Solfeggio frequencies are 174 Hz, 285 Hz, 396 Hz, 417 Hz, 528 Hz, 639 Hz, 741 Hz, 852 Hz and 963 Hz. Check the table below what properties are associated with each Solfeggio frequency.Cat Generator Set Package. Cat generator set packages have been fully prototype tested. Accepts 100% block load in one step and meets NFPA 110 loading requirements. Conform to ISO 8528-5 steady state and transient response requirements. Cat Diesel Engine. Reliable, rugged, durable design.The C18 diesel generator sets has been developed for mission critical, standby and prime applications. Producing reliable power from 455 to 600 ekW at 60 Hz, meeting ISO 8528-5 transient response requirements and built to accept 100 % rated load in one step. The engines are U.S. EPA Certified for Stationary Emergency Use Only (Tier 2 Nonroad ...Free, Simple and Easy to Use. Simply enter your desired frequency and press play. You will hear a pure tone sine wave sampled at a rate of 44.1kHz. The tone will continue until the …Hz Generator is a simple audio tone generator 20 - 20 000 Hz. Hz Generator is the perfect tool for testing audio systems and so much more. - Generates mono sine wave audio. - Use it as a simple 50 Hz test tone or pick another frequency. - Configurable from 20 Hz up to 20 000 Hz!The 3516E diesel generator sets have been developed to meet your standby, mission critical and prime applications and match your power standards. Producing reliable power (3000 - 3500 kVA at 50 Hz), each generator set has been designed to meet ISO 8528-5 transient response requirements and to accept 100 % rated load in one step.Create and play pure high-frequency audio signals from 6000 to 20000 Hz (treble range) with this free web-app. Use the generator to check your hearing, test your tweeters, or …Frequency is the number of cycles completed in 1 sec & duty cycle is the ratio of the time period of high state to the time period of the low state. We can set the 555 to work at the desired frequency by selecting the right combination of resistances & capacitance. Frequency = 1.44 / { (R1 + 2R2) * C1} Also, 555 can produce waves with …10.0 - 13.5 kVA Diesel Generator Set. Producing reliable power from 10.0 to 13.5 kVA at 50 Hz, our C1.5 diesel generator sets designed to ISO 8528-5 transient response requirements All C1.5 generator sets are R96/EUIIIa equivalent emissions compliant.

Croatian language to english.

Glasses on photo.

365 - 550 kVA Diesel Generator Set. The C15 diesel generator sets have been developed for your mission critical, standby and prime applications. Producing reliable power from 365 to 550 kVA at 50 Hz, meeting ISO 8528-5 transient response requirements and built to accept 100 % rated load in one step. The engines are certified Low Fuel ...You will find the effects associated with each slider in the preset list. Because myNoise generators have ten sliders, I extended the seven original Solfeggio tones with two other frequencies that are often used as extensions of the Solfeggio tones (sliders 2 and 3), and a special one (the first slider). The special one has been tuned to 69.3Hz.830 - 1250 ekW Diesel Generator Set. Producing reliable power from 830 to 1250 ekW at 60 Hz, our C32 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step.waross (Electrical) 5 Jun 07 21:46. A typical small (15 KVA to 200KVA) diesel generator will run at 61.8 Hz. at no load and 60 Hz. at full load. This is based on 3% speed regulation and is very common. It is possible to get autogenous governors that will make a brief frequency excursion with load changes and return to 60 Hz.White noise generator or pink noise generator. Sound generator supports frequencies from 1Hz to 22kHz. (subject to sound card output capabilities) Simultaneous tone generation of up to 16 tones at …Create and play pure high-frequency audio signals from 6000 to 20000 Hz (treble range) with this free web-app. Use the generator to check your hearing, test your tweeters, or … 100 Hz Frequency Sound. Protect your ears. Check volume level before playing! Increase volume gradually to get proper volume level. 100Hz 200Hz 400Hz 432Hz 440Hz 500Hz 528Hz 1000Hz Multiple. Play. Waveform. Sine Square Sawtooth Triangle. Frequency. This online tone generator plays a tone when the "Start" button is clicked. You can change the frequency of the tone by moving the slider or entering your desired frequency into the …Reliability: Our 60Hz diesel generators are engineered to deliver consistent power performance. They are designed to keep up with varying loads and provide stable power output, ensuring your operations proceed uninterrupted and smoothly. Efficiency: Diesel generators are lauded for fuel efficiency, and our 60Hz models uphold this reputation.Jul 3, 2018 · Humans with normal hearing can hear sounds between 20 Hz and 20,000 Hz. Frequencies above 20,000 Hz are known as ultrasound. When your dog tilts his head to listen to seemingly imaginary sounds, he is tuning in to ultrasonic frequencies, as high as 45,000 Hz. Bats can hear at among the highest frequencies of any mammal, up to 120,000 Hz. ….

Reliability: Our 60Hz diesel generators are engineered to deliver consistent power performance. They are designed to keep up with varying loads and provide stable power output, ensuring your operations proceed uninterrupted and smoothly. Efficiency: Diesel generators are lauded for fuel efficiency, and our 60Hz models uphold this reputation.Sep 12, 2023 · Introducing Frequency Sound Generator! Frequency Generator Sound player lets you generate a sine, square, sawtooth or triangle sound wave with a frequency between 1Hz and 22000Hz (hertz). It produces accurate tone & soundwaves while being simple and easy to use. No matter if you need to sound test and generate high frequency sounds or low ... Home / Products / Diesel Generators / 300REOZJ, 60 Hz. 300REOZJ, 60 Hz. 300REOZJ, 60 Hz. Find A Distributor. Standby Range (kW/kVA) 280-300/350-375. Prime Range (kW/kVA) undefined/undefined. Fuel Type Diesel. Frequency 60 Hz. Speed 1800 RPM. Alternator Type Brushless, Permanent-Magnet. Engine Manufacturer John Deere. …For faster brainwave waves, try 40 Hertz, a generator dedicated to the higher Gamma frequencies. Published on July 23rd, 2013 : From the creator of myNoise, Brainaural is a parametric binaural beat generator that gives you complete control over frequencies, up to the higher Gamma waves.3606 (60 Hz) Producing reliable power from 1650 to 2000 ekW at 60 Hz, our 3606 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. The generator set is certified for low fuel consumption.1000 eKW Diesel Generator Set. Producing reliable power at 1000 ekW, 60 Hz, our D1000 GC diesel generator set is made to meet your needs in standby applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. The generator set is US EPA Stationary Emergency Use Only (Tier 2) …The 3516E diesel generator sets have been developed to meet your standby, mission critical and prime applications and match your power standards. Producing reliable power (3000 - 3500 kVA at 50 Hz), each generator set has been designed to meet ISO 8528-5 transient response requirements and to accept 100 % rated load in one step.Generators will create power with a two- or four-pole system. Each time these poles complete a full rotation, they generate one cycle of AC power. In a two-pole system, the poles need to spin 60 times per second to create a 60 Hz generator. Your frequency output has to match the rpm of your main supply. Since 60 rpm equals 1 Hz, you should use ...Want to sound test your speakers or tune your instruments? Or simply, do you want to generate sounds and listen to the generated sounds in different frequenc... Hz generator, To change the output frequency to 50 Hz for the same generator configuration, the engine speed needs to be reduced to 3,000 rpm. Similarly, for a 4-pole generator, an engine speed of 1,800 rpm produces output of 60 Hz. Reducing the engine speed to 1,500 rpm yields an output of 50 Hz. In the case of small or residential generators, you can alter ... , Get the 12 most downloaded binaural beats each 60 minutes long in a convenience pack. High-quality Wav files. Royalty-Free. Download size: 5GB. Alpha @10Hz - 400Hz base frequency. Alpha @12Hz - 120Hz base frequency. Beta @13Hz - 400Hz base frequency. Beta @20Hz - 120Hz base frequency., The waveform of 230 V and 50 Hz compared with 120 V and 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user.In large parts of the world this is 50 …, To play a constant tone, click Play or press Space. To change the frequency, drag the slider or press ← → (arrow keys).To adjust the frequency by 1 Hz, use the … See more, This page contains a low frequency sweep and a series of tones for testing the response of subwoofers. Click the play button below to begin the test. You will hear a sine wave start at 150Hz and gradually decrease to 1Hz over the course of 60 seconds. We have also provided a series of continuous tones (compatible with Firefox 4 or later) to ..., 15.5 - 20 ekW Diesel Generator Set. Producing reliable power from 15.5 to 20.0 ekW at 60 Hz, our C2.2 diesel generator sets designed to ISO 8528-5 transient response requirements. All C2.2 generator sets are R96/EUIIIa equivalent emissions compliant., Dec 3, 2023 · - Frequency setting step 1 Hertz - Setting your frequency manually Modulator: - Multi-Frequency Generator. - Frequency from 1 to 1000 Hertz (Hz). - 4 variants of the sound wave (Sine, Triangle, Square, Sawtooth). - Adding multiple signals. - Control the volume of an individual signal - Use our tone generator to tune and test your audio equipment. , Apr 8, 2024 · There are two ways to calculate the note frequency of a note. The first is by counting and dividing the number in Hertz (Hz) from 1200, this would be written as “1200 Hz” or “1200.”. The second method for calculating note frequencies is using the octave scale where there are twelve notes per octave, which range from 200-2000 Hz. , 180 - 300 ekW Diesel Generator Set. Producing reliable power from 180 to 300 ekW at 60 Hz, our C9 diesel generator sets designed to ISO 8528-5 transient response requirements. All C9 generator sets are engineered to EPA Stationary Emergency (Tier 3) emissions standards., Signal Generator Kit, XR2206 Precise Function Signal Generator Frequency Module Signal Generator DIY Kit Sine Triangle Square Output Adjustable 1Hz-1MHz, 9-12V Direct Current Input (1) 3.7 out of 5 stars. 315. 100+ bought in past month. $9.99 $ 9. 99. FREE delivery Mon, Apr 8 on $35 of items shipped by Amazon., 3606 (60 Hz) Producing reliable power from 1650 to 2000 ekW at 60 Hz, our 3606 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. The generator set is certified for low fuel consumption., The tone generator can be used for testing the speakers and the electrical wiring of the speakers or for tinnitus and hearing loss frequency detection. Hearing range Human hearing range is usually 20Hz-20000Hz. , 250 ekW Diesel Generator Set. Producing reliable power of 250 ekW at 60 Hz, our D250 GC diesel generator set are designed to ISO 8528-5 transient response requirements. The D250 GC generator sets are engineered to EPA …, Online Tone Generator. The 60 second online hearing test. It's free, simple and no sign up required. How high can you hear? This 60 second tone helps you determine the highest frequency your ears can detect. The range of human hearing is typically quoted as being from 20-20,000Hz, but age and prolonged exposure to loud sounds can significantly ..., Home / Products / Diesel Generators / 15REOZK, 60 Hz. 15REOZK, 60 Hz. 15REOZK, 60 Hz. Find A Distributor. Standby Range (kW/kVA) 14-17/14-21.3. Prime Range (kW/kVA) 13-15/13-18.8. Fuel Type Diesel. Frequency 60 Hz. ... Generator Heaters. Line Circuit Breakers. Lockable Emergency Stop. Follow us on to find the latest updates on our …, Create and listen to pure sine wave sounds of any frequency from 1 to 20000 Hz with wave visualization. Use the free web tool to test your speakers, tune musical instruments, or download audio samples. , Introducing Frequency Sound Generator! Frequency Generator Sound player lets you generate a sine, square, sawtooth or triangle sound wave with a frequency between 1Hz …, 3412C (50 HZ) 680-900 kVA Diesel Generator models provide unmatched flexibility, expandability, reliability, & cost-effectiveness for prime & standby needs., 5 days ago · Steps to generate frequency sounds with tone generator: Enter your own tone frequency value and volume. Select type of tone wave from sine, square, triangle, and sawtooth. Click on play button to start tone generation. Optional: set the tone panner, duration, and file name. Click on download button to save your custom frequency tone. , This page contains a low frequency sweep and a series of tones for testing the response of subwoofers. Click the play button below to begin the test. You will hear a sine wave start at 150Hz and gradually decrease to 1Hz over the course of 60 seconds. We have also provided a series of continuous tones (compatible with Firefox 4 or later) to ... , OM-2245 / Operation and Maintenance Manual ITW GSE 4400 / 400 Hz. Generator Set 3) Generator Set Adjustment a) Generator Adjustment The 400 Hz generator is a brushless type requiring no adjustments of any kind. For the following adjustment, the generator set must be running at rated speed (2000 RPM), under no-load conditions., Sine. Generate tones and frequencies online, from 1 to 20000 Hz, generate sinusoidal, square, triangular and sawtooth waves online. 🎵. Instructions. Move the slider to set the …, Free, Simple and Easy to Use. Simply enter your desired frequency and press play. You will hear a pure tone sine wave sampled at a rate of 44.1kHz. The tone will continue until the stop button is pushed. The tone generator can play four different waveforms: Sine, Square, Sawtooth and Triangle. Click on the buttons to select which waveform you ..., Dec 31, 2015 · 20Hz to 20,000Hz is commonly considered to be the range of human hearing. We created this track to help car audio fanatics tune and test their stereo systems... , The 3516E diesel generator sets have been developed to meet your standby, mission critical and prime applications and match your power standards. Producing reliable power (3000 - 3500 kVA at 50 Hz), each generator set has been designed to meet ISO 8528-5 transient response requirements and to accept 100 % rated load in one step., With our free low-frequency tone generator, you can quickly and easily create the perfect sine tone signal that is suitable for testing and tuning the low frequencies of your equipment. To control the audio signal, simply move the slider knob to the desired position, or specify a specific frequency in the input field and press PLAY. , Producing reliable power from 1230 to 1500 ekW at 60 Hz, our 3512B diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Generator sets offer both low fuel consumption and low emission ..., Feb 7, 2024 · The audio frequency spectrum spans the frequency range of 20 to 20,000 Hz, defined by the lowest and highest frequencies perceivable to a healthy human ear. Understanding the qualities and characteristics of various frequency bands within this range, however, requires some examples and background context. Whether you’re working on a mix or ... , Frequency generator allows you to generate sine, square, sawtooth, or triangle waves in the 50HZ to 24000 HZ range. Generate, record and download different sound …, Protector 48kW. Model #RD04833 Starting At $19,949.00. Transfer Switch, Installation, Taxes and Shipping Not Included. View Details. Read All Reviews | Write A Review. View All Q&A | Write A Question., T − 1 {\displaystyle {\mathsf {T}}^ {-1}} Frequency (symbol f ), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time. [1] It is also occasionally referred to as temporal frequency for clarity and to distinguish it from spatial frequency. Ordinary frequency is related to angular ... , 365 - 550 kVA Diesel Generator Set. The C15 diesel generator sets have been developed for your mission critical, standby and prime applications. Producing reliable power from 365 to 550 kVA at 50 Hz, meeting ISO 8528-5 transient response requirements and built to accept 100 % rated load in one step. The engines are certified Low Fuel ..., This page contains a low frequency sweep and a series of tones for testing the response of subwoofers. Click the play button below to begin the test. You will hear a sine wave start at 150Hz and gradually decrease to 1Hz over the course of 60 seconds. We have also provided a series of continuous tones (compatible with Firefox 4 or later) to ...