Top 10 Best 4 ohm amplifier board in 2021 Comparison Table
- HiLetgo TDA7297 Version Audio Amplifier Board
- Voltage: DC 8-18V
- Power: 15W +15 W
- Output Impedance: 4-8 ohms
- Parameters: DROK audio amplifier board working voltage is DC 5V, output power is 5W (2Ω 5V)/3W (4Ω 5V) / 1.8W (8Ω 5V). Input method is monaural input.
- Artificial Material: this New-designed mini power amplifier is made of noble black immersion gold circuit board, imported KEMET speaker capacitor, large-capacity filter capacitor for channels. Besides, we customized black copper terminal blocks and gold-plated audio input terminal blocks for this new amplifier module.
- High Performance: the digital amplifier module is with high efficiency of over 90%, general harmonic distortion noise is less than 10%, low quiescent current and noise suppression.
- Safe Protection: the class D dual-channel amp board is designed with input reverse connection protection, short circuit protection, over heat protection; what's more, EMI is allowed to pass.
- Additional Function: it is available to connect amplifier type to choose different function (MODE: high electricity level is Type D, low electricity level is Type AB. Factory defaults high electricity level); available to add an external Shutdown (SD: the chip will be Shutdown at low electricity level, factory default high electricity level.
- Updated version, quality is improved! Everything you need except a power supply for adding sound to a project.
- PAM8403 - Powerful and small Class D amplifier mounted on a 28 x 20 mm breakout board. Includes a super smooth potentiometer combination volume / on-off knob. Also includes header pins.
- Mini speakers - 2 pcs. 4 ohm, 3w, 31 mm x 70 mm. The same speakers found in flatscreen TV's and monitors.
- 3.5 mm cord - Includes 50 cm (19 in) headphone style cord and plug for easy phone or Raspberry Pi connection
- Easily power the kit with any 5V supply (not included): USB cell phone charger, 3 AA batteries, or a cell phone battery bank. Soldering required (header pins included). Do not apply power to the amplifier without speakers connected, this will result in damage to the amplifier.
- Super material: It is made of electronic accessories, nickel plating on surface(anti-oxidatioan), inner conductor: pure copper. It is long lasting and durable for you to use.
- Package including: 2 pack of power amplifier board. A large area of copper and dense vias hole enhance heat dissipation. it has current limiting, short circuit and over temperature protection. Even if the output is short circuit, it will not burn out the module and it is safer
- Input power: Input power is about 4-8 Ohms, 5-15W. Working Voltage is about DC 6 ~ 18V .
- High Power High Efficiency: High reliability, strong vibration resistance, good electromechanical performance. Sound quality is very good by using this module. Mono digital audio power amplifier chip.High output and low power consumption.
- A wide range of applications: Applicable speaker impedance is 4-8 ohms (8 ohms is the best. This module can be applied to audio system, household power system, DIY speaker etc.
- Bluetooth version 4.2, compatible with all mobile phones and Bluetooth adapters on the market. Support USB sound card, drive-free, plug and play (normal lithium battery power supply)
- The maximum working current is 5V2A. It is powered by a regulated power supply of 5V2A or above, and the sound quality is better!
- The open transmission distance is about 15 meters, which supports automatic connection back to the already paired devices and automatically plays music.
- Two 2-8 ohm, 3-10W speakers can be connected separately. It is recommended to use 4 ohm 5W and 4 ohm 10W speakers. The output is stereo.
- This product has its own dual 5W power amplifier circuit, you must not connect another amplifier! The output of the two amplifiers can not be connected in parallel, or the negative poles can be connected together, otherwise the power amplifier chip will be damaged.
- 【Amazing Sound Quality】: Our 50W*2+100W digital audio power amplifier board adopts high quality TPA3116 power amplifier chip, which owns very good sound quality, and it possesses high efficiency and high amplifying power for better use
- 【3 Channel Types】: This DC 12-26V audio power amplifier board module adopts 50W*2+100W 2.1 channels(left/right channel and subwoofer channel), so this high efficiency amplifier board can satisfy the basic needs of you
- 【Adjustable Feature】: Users can adjust the volume by knobs easily, so the knob control of our 2.1 channel digital audio power amplifier board module is convenient for users to adjust by their individual needs
- 【Wide Range of Applications】: Our 50W*2 +100W subwoofer 2.1 channel audio power amplifier board is powered by DC 12-26V, which owns a wide supply voltage. And this digital audio power amplifier module is applicable for speaker of 4-8 ohms
- 【Specifications】: Model: HF26 Amplifier chip: TPA3116 Supply voltage: 12~26VDC Recommended power supply: 24VDC >5A Channel Type: Left Channel, Right Channel, Subwoofer Output Power: 50W+50W+100W(subwoofer) Output impedance: 4Ω, 6Ω, 8Ω Board size: 105*78mm/4.13*3.07in Package weight: Approx. 143g/5.0oz
- 100W Subwoofer Amplifier Board;BT 5.0 Power Amplifier,Frequency response range: input: 20 hz - 20 KHZ, output: 20 hz - 180 hz
- Operating voltage range: DC 12-24V(maximum voltage is no more than 24V); built-in TPA3116 amplifier chip;This is a pre-amplifier, bass frequency processing, with bass volume potentiometer control of the bass amplifier board.
- DC 12-24V power supply, wide operating voltage, power-saving design, more than 90% power efficiency. Maximum support 100W (Bass) bass channel output
- Audio input sensitivity: 500 mv;Speaker impedance: bass speaker impedance: 2-8 ohm
- You can use a good switching power supply adapter, laptop switching power supply, Here is our 24V power Adapter link:https://www.amazon.com/dp/B07R28RW4H
- DROK amplifier board input voltage range is DC 9-18v; output power is 30W+30W; can be connected to 4-8 ohm speakers.
- High Performance: Adopts high-grade pure black immersion gold circuit board, KEMET speaker capacitor, double NICHICON large-capacity filter capacitor per channel, high-quality monolithic filter capacitor and metal film resistor. These provide a high performance for this audio amplifier board.
- Specially-customized Terminals: The automotive amplifier module adopts specially-customized pure black copper terminals, gold-plated audio access terminals and 3P pure black terminals.
- Adjusting Knob: This dual-channel amplify module is comes with a adjustable knob, the volume can be adjusted conveniently.
- Safe Protection: The stereo amp board is designed with input reverse connection protection, short-circuit protection, over-current protection, over-heat protection, which can protect your device perfectly and extend its service life.
- Parameters: DROK audio amplifier board working voltage is DC 8-26V, can be powered by 12V, 24V; output power is 15W stereo (24V 8ohm)/ 10W stereo (12V 8 ohm), if connect 4 ohm or 2 ohm speaker, the power will be automatically limited to 15W.
- Artificial Material: this New-designed stereo amplifier module is made of noble black immersion gold circuit board, PAM8620 chip, imported KEMET speaker capacitor, large-capacity filter capacitor for channels. Besides, we customized black copper terminal blocks and gold-plated audio input terminal blocks for this new amplifier module.
- High Performance: the class D power amp module is with high efficiency of over 90%, general harmonic distortion noise is less than 0.2%, low quiescent current and noise suppression.
- Safe Protection: the 2 channel amp board is designed with input reverse connection protection, short circuit protection, over heat protection, overcurrent protection, overvoltage protection, undervoltage protection; what's more, EMI is allowed to pass.
- Additional Function: it is available to connect external mute function (MUTE: High level mute, factory default low level); available to add an external Shutdown (SD: the chip will be Shutdown at low electricity level, factory defaults high electricity level.
- ADJUSTABLE TREBLE BASS EQ: Bass signal output can operate independently and the bass amplitude range is fine-tuning. The subwoofer output is controlled separately. May appropriate to adjust the style effect according to your needs for sound effect
- WIRELESS BLUETOOTH CONNECT: Built in 2.1 version and that ranges up to 50’ + feet and has thermal power protection circuitry and variety spring loaded speaker terminal. Also,installed with HD sound and LED digital screen that your stereo is working
- 400 WATT POWER: 2 channel amplifier with 400 watt RMS at 4 ohm impedance and frequency range between 10-40 kHz for unrivaled sound superiority. Fully marine grade rating at IP-41, a class D circuit and RCA audio connector
- AUXILIARY INPUT: Save MP3 audio files to a memory card and play back through the USB or SD card reader pair of RCA jacks on the rear of the amplifier, to external smartphone, computer, MP3, laptop or tablet. Connect and stream from external devices
- HIGH-FIDELITY STEREO DESIGN: It has perfect audio outputs, plus a separate subwoofer output, volume, treble and bass shock, which can be accessed in the side panel button control center. It is made durable marine grade construction and waterproof
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Our Best Choice: XINGYHENG 2Pcs TDA7297 Dual-Channel Audio Power Amplifier Board Module Power Input Mode 4-8 Ohms 10-50W Speakers Audio Amplifier Module Converter for DC Power Supply Audio System DIY Speakers
This is an audio electric power amplifier board that enhances minimal-ability, inaudible digital audio signals, these as individuals from
radio receivers or electrical guitar pickups, adequate to push speakers or headphones. The electric power amplifier permits the listener to hear the signal.
It has a TDA7297 power amplifier chip, the style optimizes the circuit structure, the seem excellent is quite good, and the ability is large.
With this module, the seem top quality is pretty good.
Mono electronic audio power amplifier chip.
High output and reduced energy consumption.
Relevant speaker impedance: 4-8 ohms (8 ohms is the greatest).
Deal together with:
2pcs x Energy amplifier board module
Module general performance and characteristics:
-Onboard TDA7297 audio electrical power amplifier chip, twin channel 15W+15W, suited for 4-8 Ohms, 10-50W speakers
-The primary pin of the chip has been led out, practical for external machine handle, onboard 2 channel 5.08 (mm) pitch 2P binding posts,
respectively for left and correct channel wiring output
-The onboard dial potentiometer can change the volume output size
-The electrical power enter manner is DC5.5*2.5
-Supports DC energy source, terminal block, and pin 3 energy enter method.
-Onboard 10K adjustable resistance, you can regulate the volume amplified Onboard power indicator
-Important pin of the chip has led, can be right enter audio sign
-Running voltage: 6 ~ 18V
-Board measurement: 45 (mm) x 33 (mm) x 25 (mm) L x W x H
-General over temperature protection
Tremendous content: It is made of electronic extras, nickel plating on area(anti-oxidatioan), internal conductor: pure copper. It is extended lasting and long lasting for you to use.
Deal which includes: 2 pack of electrical power amplifier board. A large space of copper and dense vias gap increase warmth dissipation. it has latest restricting, short circuit and about temperature security. Even if the output is quick circuit, it will not burn out the module and it is safer
Enter energy: Input energy is about 4-8 Ohms, 5-15W. Doing work Voltage is about DC 6 ~ 18V .
Significant Electricity Substantial Effectiveness: Large reliability, powerful vibration resistance, good electromechanical effectiveness. Seem high quality is very fantastic by working with this module. Mono electronic audio energy amplifier chip.Superior output and reduced electricity use.
A extensive range of applications: Relevant speaker impedance is 4-8 ohms (8 ohms is the greatest. This module can be applied to audio program, house power method, Do-it-yourself speaker etcetera.