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The Best Power Amp With Vu Meters of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Power Amp With Vu Meters of 2023. Check our ranking below.

2,553 Reviews Scanned

Rank No. #1

AIYIMA T9 PRO 200W Bluetooth Amplifier HiFi Digital Class D Amp 2.0/2.1 Channel Vacuum Tube Power Amp with VU Meter & Bass Treble Bluetooth 5.1 DAC Coaxial Optical PC-USB inputs

【Outstanding internal construction】The chipsets are high quality designs from American companies,Qualcomm, Texas Instruments and Cirrus Logic
【With multiple digital audio inputs】Bluetooth 5.1 / USB / Coaxial / Optical / stereo RCA, compatible with most audio device such as phones, computers, tablets, TVs, TV, CD players etc. The perfect combination of DAC and amplifier, very suitale for audiophiles who have various audio devices
【HiFi clear sound with tone control】Resonable circuit and concise wiring, adopts upgraded vacuum tubes Jan 5725 to soften the sound and filter out the digital feelings, sounds warm and sweet without noise. Also with the treble and bass knobs to adjust one's own preferable sound styles, presents HiFi music with rousing highs and deep lows
【New dial layout design】The new dial layout are simplified and convenient,With Vu meter display
The use of audio-specific inductive, to ensure that the sound is crisp and powerful

Rank No. #2

Douk Audio ST-01 PRO 200W Bluetooth Amplifier, 2 Channel Vacuum Tube Power Amp with USB DAC/Coaxial Optical Inputs/VU Meter/Treble Bass Control for Home Theater/Stereo Speakers (Upgrade Version)

Full Upgraded Version of ST-01: 1. Supports U-disk input to play lossless formats music. 2. Add sensitivity adjustment of VU meter on its bottom, easy to set and match better with different input signals. 3. Add three decorative golden circles around tubes and VU meter, looks more exquisite and luxury.
Unique and amazing combination: With VU meter into whole in such a mini size, the pointer dancing in the warm light with strong vintage feelings when enjoy HiFi music, dynamically decorates the audio system space.
HiFi clear sound with tone control: resonable circuit and concise wiring, adopts vacuum tubes to soften the sound and filter out the digital feelings, sounds warm and sweet without noise. Also with treble and bass knobs to adjust one's own preferable sound styles, presents HiFi music with rousing highs and deep lows.
Strong output power and special AUX output: use TI's classic power amp IC, each channel can output 100W(4Ω) and easily to drive all 3-8Ω passive speakers, adds 3.5mm AUX output easy to connect another amplifier or active speaker / subwoofer to build multiple channel system and enjoy wonderful home theater experience.
With multiple digital audio inputs: Bluetooth 5.0 / USB / Coaxial / Optical / stereo RCA, compatible with most audio device such as phones, computers, tablets, TVs, TV, CD players etc. The perfect combination of DAC and amplifier, very suitale for audiophiles who have various audio devices.

Rank No. #3

AIYIMA A02 Bluetooth 5.0 100W * 2 Power Amplifier 2.0 Channel Stereo HiFi Home Audio Digital Amp with VU Meter

【Unique and amazing combination】Integrated A02 amplifier with VU meter into whole in such a mini size, when enjoy HiFi music, the pointer dancing in the warm light with strong vintage feelings, dynamically decorates the audio system space
【Strong output power and low frequency output】Each channel can output 100W(4Ω), match perfectly and easily to drive all 3-8Ω passive speakers
【With multiple digital audio inputs】Bluetooth 5.0 and stereo RCA, compatible with most audio device such as phones, computers, tablets, etc
【Practical funtions to simplify use】With input selection and indicators, clearly to show the working status in real time; aluminum alloy case is specially designed, cool and unique to decorate your desktop space
【Brand technical support and after -sales service】www.amazon.com/hz/help/contact/A3BG62S1F23IH5#.Or leave any of your instant messaging account and I'll contact you!

Rank No. #4

AIYIMA A08 PRO TPA3255 Power Amplifier Bluetooth 5.1 with VU Meter 300W+300W HiFi Class D Stereo Digital Audio Amp 2.0 Channel Amplifier for Passive Speaker Home Audio

【Unique and amazing combination】Integrated A08 PRO amplifier with VU meter into whole in such a mini size, when enjoy HiFi music, the pointer dancing in the warm light with strong vintage feelings, dynamically decorates the audio system space.You can matched purchase our T8 tube preamp, connected to your home audio passive speakers to form a perfect HIFI system, allowing you to liberate your ears in this noisy city
【Bluetooth 5.1 Audio Wireless HD transmission】Adopt Qualcomm QCC5125 Chip,Support SBCAACAPTXAPTX-LLAPTX-HDLDAC,Multiple audio input methods of Bluetooth and RCA can meet customers who need more needs
【HiFi clear sound with tone control】 Resonable circuit and concise wiring,high quality Internal component such as Phase mode inductance,make the sounds warm and sweet no noise. Sound is typical Class D "bright," with good bass, along with a bright (and dynamic) midrange and high frequency area.that is both dynamic and full-bodied;With treble and bass knobs to adjust one's own preferable sound styles, presents HiFi music with rousing highs and deep lows
【Simple compact but powerful design】Adopted TPA3255 Chip,each channel can output 300W(4Ω Load), match perfectly and easily to drive all 3-8Ω passive speakers, adds a low frequency output easy to connect Powered speakers and build 2.1 channel system, the bass effects is greatly enhanced.
【What You Get after your purchase】Provide worry -free warranty and technical services;Package with a DC 36V 6A Power Adapter for free,But if you want to get the maximum power of 300W, you need to buy a Linear power supply that uses DC 48V current is above 10A (Cannot use industrial power supply)

Rank No. #5

Douk Audio VU1 Analog VU Meter, Sound Level Indicator with Panel DB for Amplifier/Preamp

Adopting MCU to process the audio signal, better to achieve exponential gain driver, provides ultra-wide input signal auto adjustment, the display effects can be greatly upgraded than the common VU meters in the market.
Reasonable and concise circuit layout, the power supply is only provide power to the driver board and VU meter, not pass through audio input and output circuit, the sound quality will not be interfered but only adding the dynamic visual enjoyment.
With auto gain adjustment, very easy to control most input signals and achieve better beating effects. Backlight function can be turned on or turned off, convenient to use, and the bright and warm light can decorate your desktop or live studio.
With standard stereo L/R RCA input and output, can compatible with most common audio device such as mobile phone, computer, CD players, preamp, power amplifier or studio mixers and so on, suitable for a variety of scenarios.

Rank No. #6

2Pcs VU Meter Warm Back Light Recording + Audio Level Amp with Driver Board Support Two Level Meter Backlight Power Supply Support Two Level Meter Backlight Power Supply

Practical: The design of bridge pile rectifier filter circuit, can be a transformer or DC power supply, power supply voltage 12-15V / 300mA. Meet your needs
Convenient to use: The level swings adjustable, can be compatible with all the different types of table header. You can use it with confidence
Reliable: The drive source can be connected to the amplifier input or audio amplifier output, without changing original circuitry. A great choice for you
High performance: Support two level meter backlight power supply, change the current limiting resistor can be connected to different backlight. Meet your needs
Two output connection terminals: The driver board supports two output connection terminals. Bring you a new and different using feeling

SaleRank No. #7

Akozon VU Meter 2 Pcs VU Panel Meter Warm Back Light Recording + Audio Level Amp with Driver Board

【Function】: This vu meter is designed with bridge stack rectifier filter circuit, can be powered by transformer or DC power supply, supply voltage 12-15V/300mA. level swing adjustable, compatible with all different types of meter heads.
【Parameters】: Voltage 500MV, connector DC resistance: 652Ω. backlight of incandescent bulb. Working voltage: 6-12V AC or DC, weight: 21g, excellent quality, fine appearance, stable and reliable performance.
【Easy to operate】: The driving signal source can be connected to the input of the amplifier or the output of the audio amplifier, without changing the original circuit. Support two levels of meter head backlight power supply, change the current limiting resistor can be connected to different backlight.
【Note】: Under the condition that the backlight brightness meets the requirements, reducing the working voltage can significantly extend the service life. The driver board supports two output connection terminals. Current limiting resistors need to be connected in series with 100Ω ~ 200Ω to reduce the impact on the filament start.
【Package contains】: 2 x 500μA VU meter, 1 x AC12V driver.

Rank No. #8

Douk Audio VU2 MIC & Line Dual VU Meter, Analog Sound Level Indicator, 4-Way Splitter Switch, Audio Switcher Box for Speaker/Amplifier/Preamp (Light Version)

As an analog VU meter, with wired stereo RCA input and wireless microphone inputs, can be matched very well with most common audio device such as mobile phone, computer, CD players, or speakers and so on, very suitable for home/office/studio system to dynamically decorate your auditory feast.
As a 4-way audio splitter box, VU2 can work in 4-IN-1-OUT to compare the sound quality of differet audio source among mobile phone, tablet computer, TV, CD player, DAC etc., also can work in 1-IN-4-OUT mode to do contrasts among preamp, headphone, power amplifier and active speakers etc.
No need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets. 4 channel can input at the same time to mixer different audio source, also can output at the same time to satisfy the requirements of monitoring or recording.
The USB interface of VU2 is only for providing power for the drive board of the VU meter, without any interference to the audio input and output circuit. VU meter and switcher box is controlled independently, and VU meter only reads audio signal from the I/O interface, the sound quality will not be affected.
Unique and powerful design with exquisite appearance, cool black case and colorful indicators looks vintage and dynamic. All input and output terminas are made of lengthened gold-plated pure copper with large contact area for perfect performance and ultra-low signal loss, and equipped with remote control, very convenient to use, can perfectly match with audio device of different styles and suitable for a variety of scenarios.

Rank No. #9

YWBL-WH 2PCS 12-15V/300mA VU Meter Warm Back Light Recording+Audio Level Amp with Driver Board, Electric Energy and Measuring Instruments

The design of bridge pile rectifier filter circuit, can be a transformer or DC power supply, power supply voltage 12-15V/300mA
The level swings adjustable, can be compatible with all the different types of table header
The drive signal source can be connected to the amplifier input or audio amplifier output, without changing original circuitry
Support two level meter backlight power supply, change the current limiting resistor can be connected to different backlight
The driver board supports two output connection terminals

SaleRank No. #10

Wefomey 120W Universal Power Supply Adjustable DC 3V ~ 24V Variable Switching AC/DC Adapter 100V-240V AC to DC 24V 5A Converter with 14 Tips & Polarity Converter - 5000mA Max

【Variable Power Supply】 Input: AC 100~240V, 50/60Hz; Output: DC 3~24V Adjustable, Max 5A 120W. The variable voltage is easy to select. You can easily obtain the voltage you want by turning the button, such as 3V, 3.5V, 4V 4.5V 5V 6V 7.5V 9V 12V 12V 15V 18V 19V 20V 24V 5A 4A 3A 2A 1.5A 1A... The voltage should not exceed 5A, otherwise the power supply will be damaged. One adapter for multiple device.
【Upgraded Version Power Supply】Built-in protruding rotatable button for adjusting the voltage suitable for your device ,The LED displays real-time voltage,which helps you control real-time condition of charging. The knob can be adjusted more evenly, and it can reach 13V ~ 14V by rotating 50%. Increase the off gear to turn off the power without pulling the plug.
【Multiple DC Tips】Equipped with 14 frequently used plugs: Micro-USB, Type-C, DC terminal connector, 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm. Universal ac adapter equipped with a reverse polarity converter. Our DC plug polarity: inner positive(+), outer negative(-). you can use this reverse polarity converter, which expands the application range of the adapter to a greater extent.
【Widely Used】The 120W multi voltage universal power adapter fit for most AC/DC power need for 3~24V household and office electronics, like portable bluetooth, wireless receivers, electrical toys, classic radio, battery chargers, Christmas light decoration, games consoles, GPS, DVR, massage gun, webcam, speaker, CCTV camera, speaker, lan phones, USB Hubs, laptop cooler, external speaker, 5V 12V 24V LED strips Lights and more. (Check dc jack before buy: 5.5x2.5mm, compatible 5.5x2.1mm)
【Worry-Free Shopping】Package includes 1 x 3~24V 120W universal ac/dc adapter, 14 x DC tips, 1 x reverse polarity converter. Built-in multiple safety protection systems and safe to use. All products tested and shipped. If you have any questions about the product, please feel free to contact us before returning. We support 30 days money back guarantee, 24 months free exchange.

Rank No. #11

Kesi Turns a Corner

Amazon Prime Video (Video on Demand)
English (Playback Languages)
English (Subtitle)

Rank No. #12

Nobsound B100 Bluetooth 5.0 Tube Amplifier USB DAC Coax/Opt Integrated Power Amp

With 5 kinds of analog and digital audio input (Bluetooth 5.0 / PC-USB / U-disk / Coaxial / Optical / 2 groups of RCA), compatible with almost all audio devices such as MP3, phone, tablet, computer, TV, CD players etc. U-disk input supports lossless formats such as APE, FLAC, WAV etc., easy to enjoy HiFi music.
Multiple audio outputs for different devices: besides speaker output, add 3.5mm headphone jack out to improve sound quality for headphones, and a low frequency output is specially designed to connect active subwoofer to build 2.1 channel audio system and strengthen bass sound effects.
Combined design of tubes and transistors: using 6P16A as preamplification, the sound is clear, warm, smooth and delicate with high fidelity. 2PCS Toshiba C5198 and 2PCS 1941 triode for power amplification, each channel can output 25W, easily to drive all home passive speakers.
Vintage looking specially with VU meter: exquisite black panel matches with retro vacuum tubes and VU meter to dynamically to decorate home desktop space. With independent function buttons and input indicators on the top panel, easy to use, very suitable for home and desktop audio system use.
6P16A vacuum tubes are not easy to be found on web. But its unique performance will bring you an unforgettable sound experience. If you want more spare tubes, please contact us directly.

Rank No. #13

Douk Audio VU3 Dual Analog VU Meter, 2-Way Amplifier/Speaker Switch, Audio Switcher Box with DB Panel Display

As a VU meter, with dual 60*35mm large meter, can dynamically decorate audio environment and provide incomparably visual effects when switching audio signals.
As an audio switcher, easily to switch between two amplifiers and 2 pair of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets.
Powerful design and strong compatibility: all channels adopt fully isolation design, each channel's GND is independent without mutual interference. Supports all kinds of amplifier such as BTL / class A / class B / class D digital amplifier / tube amplifier etc.
Easy Use & Perfect Details: Powered by micro-USB 5V, with built-in protection load for speakers. With remote control, can quickly set the working status from distance. All settings can be saved after shutdown, more convenient to use.
Proper size with exquisite appearance: cool black case, warm VU meter and clear indicators looks vintage and dynamic, can perfectly match with a variety of usage scenarios, very suitable for audiophiles who have more than one amplifiers or speakers.

Rank No. #14

Technical Pro DB30 1U Rack Mount dB Decibel Meter Display+8 Outlet Power Supply

Technical Pro DB30 1U Rack Mount Decibel Meter Display Plus 8 Outlet Power Supply, 1U rack mount dB display, 8 grounded outlets on rear panel,
View your dB level, Creates a great light show in your rack, Input: RCA, Output: RCA,
Sensitivity adjusters on both left and right channels, 2 separate modes: dot and bar, Range: 5dB-140dB,
5V USB Charging Port
Dimensions: 19'' L x 3.9” W x 1.75'' H, Weight: 2.1 lbs, Power: 110/220v

Rank No. #15

HiFi Balanced XLR Digital Amplifier Home Stereo Speaker Amp w/VU Meter 300W x 2

Stronger output power and RCA output added: use TI's classic power amp IC 3255, each channel can output 300W(4Ω) and easily to drive all 4-8Ω passive speakers; stereo RCA output is added, easy to connect another amplifier or active speaker / subwoofer to build multiple channel system and enjoy wonderful home theater experience.
Separate control for left and right channels: two volume knobs are designed for adjusting the left and right channel output indepedently, compensate for the left and right channel of all outputs and prevent the sound field positioning from deviating from the center position. Also with sensitivity knob of VU meter, easy to adjust and match better with different input signals.
Balanced power amp with VU meter: H7 amplifier integrated with VU meter, not only reproduces high-quality audio with excellent separation, resolution, sound field and clean background, but also dynamically decorates the listening space with strong vintage feelings when its pointer dances in the warm light.
HiFi clear sound and attractive appearance: support both XLR and RCA inputs compatible with most home audio device; resonable circuit and concise wiring, many high-quality components are used for excellent performance; custmoized grey aluminum alloy case, CNC machined with laser engraving, looks elegant and luxury.

Rank No. #16

Douk Audio VU22 Dual Analog VU Meter Display DB Panel MIC+LINE Sound Level Meter (Black)

Wired and wireless audio inputs: with stereo RCA/3.5mm AUX audio input and microphone pick up, work well with most audio devices such as phone, computer, CD players, or speakers etc., very suitable for home/office/studio to dynamically decorate your auditory feast.
Excellent sound and free settings: with 100K high-impedance input circuit, ensuring clean sound without any audio rendering when using line inputs. The color and light level of backlight also can be adjusted freely, perfectly match with different styles of audio device and environments.
Advanced AGC algorithm and better display: AGC ensures ideal visual effects even the input signal is in a small to large range, avoid that no display when input low signal and display in full screen when input high. With gain adjustment even can set the swing range of pointer, easily to control most input signals and achieve better beating effects.
Attractive looking and powerful design: all metal case with CNC machined panel, solid stepless adjustment knob, all interfaces are gold-plated to ensure the tight connection, ensures the smooth transmission of the original audio signal and minimizes the loss of the signal during transmission.

Rank No. #17

HiFi Bluetooth Vacuum Tube Preamp Stereo Audio Amplifier Headphone Amp VU Meter

P6 tube preamp and headphone amp: With Bluetooth and stereo RCA inputs, amplify the low level audio signal from your phone, tablet, PC, TV, MP3 etc., much easier to drive amplifier or active speaker to greatly improve the sound quality. With built-in classic headphone amp circuit (2*NE5532), easily to drive 16-300 ohm headphones, enjoy HiFi analog sound and first-class design with an unbeatable low cost.
Imported JAN5654 tubes and tone control: default comes with JAN5654 tubes, improves everything associated with your music, sounds warm and sweet. Pluggable tube socket for tube rolling and sound-shaping, easy to change to one's preference. Also with independent treble and bass knob to present amazing music with rousing highs and deep lows.
Amazing combination in the appearance and function: integrated P6 preamp with retro tubes and VU meter into a whole, the pointer dancing in the warm light dynamically decorates the audio system; QCC3034 Bluetooth chip, support APTX and APTX-HD transmission with low latency losslessly with higher sound quality.
Mini size and excellent performance: all designs full of details, such as solid aluminum alloy knob, gold-plated terminals, black integrated moulding aluminum alloy shell decorates with built-in VU meter, looks vintage and elegant. Provide a different acoustic enjoyment with large dynamic and sweet tube sound even in limited space.

Rank No. #18

Dual Analog Power Meter for Amplifier/Speaker Voltage Current Detector VU Tester

CT3 voltage and current tester: with 1 group of banana jack input and output, connected between amplifier and speaker to test the output voltage, current and power(P=UI), to detect that the actual output power of the amplifier is up to standard and the output of left and right channel is balanced or not.
Strong adaptability for different amplifiers: compatible with digital amplifiers (Class A, Class D, Class T), AV amplifier, also for tube amplifier for tube readjustment. When tubes are used for long time or changing other tubes are, effectively avoid imbalance of left and right channels via CT3 testing.
Designed with two 8ohm/20W resistors: support to test and monitor the output power of amplifier when the speakers are not connected, the pointer will also dynamically beat along with the real-time output, as a power VU meter to decorate your desktop.
Large meter display and excellent design: dual large meter for each channel show the voltage and current clearly; metal case, more solid and with better shielding performance; with output load switcher, no need to plug speaker cables repeatedly.

SaleRank No. #19

VU Meter 2x Panel VU Meter Warm Back Light Recording & Audio Level Amp with Driver Board

L/GND/R: This driver board with low level signal input terminals for connections are CD players, computer sound cards, the first stage, and other audio signal source device, wiring L, GND, RW respectively: Left, the right channel
Power Consumption:Input AC / DC 12V-15V power supply for the drive plate. (Recommended independent power transformer, or a separate power supply for the winding. the backlight current is 45 mA when drive plate off work
2 Resistor:R1 and R2 are two adjustable resistors of driver board,which can control the size of the hands swing.
Rectifier RegulatorThe backlight DC12V power meter is used for rectifier regulator of the backlight driver board Please notice that the positive and negative head interface.
Package Content:2 x VU Panel Meter+1 x Driver Module+1 x Cable

SaleRank No. #20

P‑78WTC VU Meter, Power Amplifier DB Meter, Sound Audio Level Tester, High Accurancy for DIY, Home Audio, Car Audio Conversion

【White Backlight】The level meter has high definition white backlight, it can be used normally at night, equipped with pointer dial, high accuracy, can directly display the measurement results.
【Feature】The VU meter is compact design, easy to carry and store, with exquisite workmanship, easy to install, it is the most basic tool in audio equipment.
【High Quality】The DB meter is made of high quality ABS material, which is sturdy and durable, not easy to damage, has good performance and a long service life.
【Wide Use】The power amplifier meter is practical, has a wide range use, suitable for various scenes, such as DIY, home audio, car audio conversion etc.
【Quality Assurance】This DB level meter is manufactured under strict quality control and standard requirements, and has a high safety factor, so it can be used with confidence.

Last update on 2023-07-29 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Power Amp With Vu Meters?

Do you get stressed out thinking about shopping for a great Power Amp With Vu Meters? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Power Amp With Vu Meters, which is why we have assembled a comprehensive list of the greatest Power Amp With Vu Meters available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Power Amp With Vu Meters that you consider buying. Your questions might include the following:

Is it worth buying an Power Amp With Vu Meters?
What benefits are there with buying an Power Amp With Vu Meters?
What factors deserve consideration when shopping for an effective Power Amp With Vu Meters?
Why is it crucial to invest in any Power Amp With Vu Meters, much less the best one?
Which Power Amp With Vu Meters are good in the current market?
Where can you find information like this about Power Amp With Vu Meters?

We’re convinced that you likely have far more questions than just these regarding Power Amp With Vu Meters, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Power Amp With Vu Meters, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Power Amp With Vu Meters. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Power Amp With Vu Meters buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Power Amp With Vu Meters currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Power Amp With Vu Meters has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Power Amp With Vu Meters?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Power Amp With Vu Meters.
Customer Ratings: Number ratings grade Power Amp With Vu Meters objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Power Amp With Vu Meters.
Product Quality: You don’t always get what you pay for with an Power Amp With Vu Meters, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Power Amp With Vu Meters is should be an indication of how long it will work out for you.

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FAQ:

Q: What is the purpose of a VU meter?

A: A VU-meter is a very common instrument usually installed on audio Hi-Fi amplifiers and is used to show the instantaneous power provided to the speakers. It is usually connected at the output of the amplifier, in parallel with the speaker.

Q: Are there any VU meters on Yamaha amplifiers?

A: Yamaha has put VU meters on its latest batch of integrated amplifiers. Technics and TEAC pulled the same trick a few years back. Some manufacturers – McIntosh, Luxman, Accuphase and Audio Research – never gave up on the bouncing needles.

Q: Which is the best resistor for a VU meter?

A: Resistor R1 is a very good idea because it increases the impedance of the meter and limits the (non-linear) current drawn by this circuits so that it can be neglected compared to the main speaker current. Otherwise, connecting a rectifier in parallel with a speaker could introduce some distortion.

Q: Is it possible to build a simple logarithmic VU meter?

A: A simple circuit to build a simple logarithmic VU-meter has been presented. Its simplicity really outperforms common linear VU-meters for about the same cost. Even if its accuracy is lower than what is achieved with professional equipment, it’s a good logarithmic approximation and is definitely good enough for a Hi-Fi amplifier of a stereo set.