ReviewsAdjustable Gain Amplifiers

Amped Wireless High Power 700mW Dual Band AC Wi-Fi Router (RTA15)

Share your broadband Internet connection and provide long range wireless access.
Ten high power amplifiers and three high gain antennas deliver industry leading Wi-Fi coverage.
Next generation, ultra-fast AC1200 Wi-Fi speeds provide fast HD streaming and lag-free gaming.
Advanced 2-Stage amplifiers use double amplification to achieve maximum range.
Features a powerful processor, five gigabit wired ports and a USB storage sharing port.

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UWAYKEY 35W Audio Tube Amplifier with TDA7377 Chip, HiFi Stereo Receiver Integrated Amp with Bluetooth 5.0, Hybrid Amp for Home Theater System

About ZK-152H Tube amplifier: ZK-152H is a hybrid tube power amplifier, which uses tube as the front stage power amplifier and class AB power amplifier chip as the combination method of the rear stage. This combination method neutralizes the advantages and disadvantages of Class A power amplifiers and Class AB power amplifiers. ZK-152H Tube amplifier allows you to taste the "taste" of tube amplifiers at a low price instead of the cold "digital taste" of digital power amplifiers..
This tube power amplifier uses the TDA7377 chip, which is a class AB power amplifier chip. The professional fully complementary output stage structure and internal fixed gain ensure that the output is not distorted at high power. We changed the output power of the chip to 35w by means of bridge connection. This output power is not a beautiful figure in the face of digital power amplifiers, but its sound quality is far better than digital power amplifiers, especially when playing human voices..
How Many Input Methods Are There: ZK-152H tube amplifier provides two input modes: Bluetooth mode and RCA mode, the switching between modes can be switched by physical buttons. At the same time, the tube amplifier can also input audio signals through AUX 3.5mm..

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CT Sounds CT-3200-1D Class D Car Audio Monoblock Amplifier, 3200 Watts RMS

Xtenzi Brand Remote Amplifier Level Controller Optional bass remote XTBR25-91579.
Optional Wired Remote Volume Control Compatible with Select Alpine Series Amplifiers.
Controls the bass/gain from the front seat or remote location from amplifiers, without having to reach for the amplifier..
Allows You to Adjust Your Bass Level Quickly and in the Most Ideal Location, Simple 1-wire connection gets you up and running in a flash..
High Quality Product Remote Unit Comes with 5-meter/16 Feet/196-inch remote connection wire and bass knob and mounting Screws.

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ACEIRMC 2pcs MAX9814 Electret Microphone Amplifier with Auto Gain Control for Arduino

1.The MAX9814 is a high-quality microphone amplifier with automatic gain control (AGC) and low-noise microphone bias. The device features a low-noise preamplifier, variable gain amplifier (VGA), output amplifier, microphone-bias-voltage generator and AGC control circuitry..
2.A trilevel digital input programs the output amplifier gain. An external resistive divider controls the AGC threshold and a single capacitor programs the attack/release times..
3.The low-noise preamplifier has a fixed 12dB gain, while the VGA gain automatically adjusts from 20dB to 0dB, depending on the output voltage and the AGC threshold. The output amplifier offers selectable gains of 8dB, 18dB, and 28dB. With no compression, the cascade of the amplifiers results in an overall gain of 40dB, 50dB, or 60dB..
4.The MAX9814 is available in the space-saving, 14-pin TDFN package. This device is specified over the -40°C to +85°C extended temperature range. MAX9814: Simplified Block Diagram MAX9814: Simplified Block Diagram Enlarge+.
5.A trilevel digital input programs the ratio of attack-to-release time. The hold time of the AGC is fixed at 30ms. The low-noise microphone-bias-voltage generator can bias most electret microphones..

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Nobsound High Precision Passive Preamp Volume Controller VOL Control HiFi Preamplifier ALPS RCA&HiFi Version Black

Excellent volume controller for active speakers and pure post power amplifiers..
HiFi version: Using ALPS27 potentiometer, CMC816 RCA.
Has no gain, such as input 1V, the maximum output is also 1V.
Can match power amplifiers, active speakers and some monitor devices very well with....
High precision adjustment, adopting Japan ALPS27/16 potentiometer.
Lossless transmission, adopting Pure copper gold-plated RCA.
High-end texture, adopting full aluminum chassis and knob with CNC maching technology.

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Taidacent AD8130 Differential Receiver Amplifier Module Differential to Single-ended High Common-mode Rejection Ratio Low Noise Low Distortion

Name: AD8130 Differential Amplifier Size: 43mm X 38mm Supply voltage range: ±5V~±12V.
The differential-to-single-ended amplifier, which has a 270-MHz bandwidth and a very high common-mode rejection ratio (CMRR) at high frequencies, can also be effectively used as a high-speed instrumentation amplifier or to convert a differential signal to a single-ended signal..
Differential amplifiers can process single-ended inputs as interactive differential outputs or treat differential inputs as differential outputs. These amplifiers have two independent feedback loops that control the differential and common-film output voltages, respectively..
Chip features 1. High speed AD8130: 270 MHz, 1090 V/us (G= +1) AD8129: 200 MHz, 1060 V/us (G= +10) 2. High Common Mode Rejection Ratio (CMRR) 94 dB (minimum, DCE100 kHz) 80 dB (minimum, 2 MHz) 70 dB (10 MHz) 3. High input impedance: 1 MQ differential 4. Low noise AD8130: 12.5 nV/Hz AD8129: 4.5 nV/vHz.
5. Input common mode range: ±10.5V 6 low distortion, 1V peak-to-peak (5 MHz): AD8130, -79 dBc (Worst Harmonic, 5 MHz AD8129, -74 dBc (Worst Harmonic, 5 MHz) 7. User adjustable gain G= +1 without external components 8. Supply Voltage Range: +4.5V to ±12.6V 9. Power saving mode.

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Alpine MRV-M500 Amplifier and a R-W10D4 R-Series 10-inch Dual 4 Ohm Subwoofer - Includes wire kit

The new V-Power products are now Class D digital amplifiers, resulting in a huge efficiency gain versus their predecessors without draining your battery or your pockets. Class-D provides continuous clean power to your speakers, operating at 80% efficiency far greater than conventional Class A or B amplifiers. Translation: Enjoy cleaner bass, even during extreme power demands..
V-Power amplifiers are known for their compact size, but don’t underestimate their power capacity. Although they have a 40% smaller footprint than their predecessors, they produce the same amount of power as before. Get the power you need, even if you have limited installation space..
Parabolic Cone Structure with Pulp/Kevlar Cone & PP/Mica/Talc Dust Cap..
High Amplitude Multi-Roll surrounds (HAMR).
This package also includes a 4-gauge wiring kit with full copper wiring and 2-channel RCAs..

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High Sensitive CCTV Microphone Security Outdoor Microphone Tiny CCTV Surveillance Microphone for CCTV Security Camera CCTV DVR Surveillance System,Volume can be Adjusted, Outdoor Audio External Mic

...ided with the microphone. This microphone looks great installed on a drop ceiling grid or mounted flush to any smooth surface..
Monitor range: 60sqf -1600sqf. Current consumption: 20mA,Volume can be adjusted.
Surveillance DVR Microphone: What are You waiting for? Our most sensitive microphone ever! The GK-301A has an adjustable gain control that allows you to install it in small offices or larger areas to cover almost any indoor environment. The microphone is installed inside of an attractive white case with an external gain control to set the sensitivity. Our products will not let you down. Spend the least money to get the best valule!.

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Micca OriGen G2 High Resolution USB DAC and Preamplifier - 24-Bit/192kHz PCM

【Standard version】 Using ALPS RK16 potentiometer. With high-precision and low noise , good performance..
【No Gain】 such as input 1V, the maximum output is also 1V.
Can match power amplifiers, active speakers and some monitor devices very well with lossless sound quality..
【Perfect match】 Excellent volume controller for active speakers and pure post power amplifiers..
【Material】 Adopting Pure copper gold-plated RCA, High-end texture, adopting full aluminum chassis and knob with CNC matching technology..
【1-year warranty】 We offer 1-year guarantee period. If you have any questions or concerns, please don't hesitate to contact us..

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Xtenzi Amplifier Bass Volume Knob Control Remote XTBR24 Compatible with Rockford Fosgate Punch PEQ

Xtenzi Brand Remote Amplifier Level Controller Optional bass remote XTBR24-91578 For Select Rockford Fosgate Series Amplifiers.
Controls the bass/gain from the front seat or remote location from amplifiers, without having to reach for the amplifier..
Allows You to Adjust Your Bass Level Quickly and in the Most Ideal Location, Simple 1-wire connection gets you up and running in a flash..
High Quality Product Remote Unit Comes with 5-meter/16 Feet/196-inch remote connection wire and bass knob and mounting Screws..
Convenient Under-dash mount and Surface Mount installation..

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Alpine MRV-M500 Amplifier and Two S-W10D2 S-Series 10' Dual 2-Ohm Subwoofers - Includes wire kit

The new V-Power products are now Class D digital amplifiers, resulting in a huge efficiency gain versus their predecessors without draining your battery or your pockets. Class-D provides continuous clean power to your speakers, operating at 80% efficiency far greater than conventional Class A or B amplifiers. Translation: Enjoy cleaner bass, even during extreme power demands..
V-Power amplifiers are known for their compact size, but don’t underestimate their power capacity. Although they have a 40% smaller footprint than their predecessors, they produce the same amount of power as before. Get the power you need, even if you have limited installation space..
The new S-Series subwoofers use a new design that’s almost 1-inch shallower than their predecessors.
Reinforced parabolic cone structure with pulp/Kevlar con & PP/Mica/Talc Dustcap.
This package also includes a 4-gauge wiring kit with full copper wiring and 2-channel RCAs..

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