ReviewsPre Amplifiers

Digital Hearing Amplifiers - (Set of 2) Mini ITE in-The-Ear Rechargeable Personal Sound Amplifier

【COMPLETE SET1 2 - DIGITAL AMPLIFIERS】Theres no better way to instantly experience sound as it was intended and enjoy the fullest of life! With the MEDca digital in-ear canal hearing amplifier you'll be able to comfortably and effectively be able to hear loud and clear. With MEDca you can now get your freedom and life back with our discreet digital hearing amplifiers.
【STOP BUYING REPLACEMENT BATTERIES TODAY】This hearing amplifier is rechargeable so there is no need to keep buying replacement batteries. Each order comes complete with 2 amplifiers, 2 charging adapters, 2 protecting and carrying cases 2 straps, 4 amplifier cleaning tools, 10 ear tips, 1 owner's manual.
【TOP NOTCH SOUND QUALITY】Designed by audiologists and outfitted with the latest digital technology these hearing amplifiers offer you Top-Grade Sophistication and Performance. The Hearing Amplifiers have digital Noise Cancellation and Feedback Reduction features that allow them to deliver powerful crisp, clear sound without any annoying feedback or whistling..
【EASY TO USE! NO PROGRAMMING REQUIRED】These hearing amplifiers work hassle f....

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Amor por el café: El libro del café y su gastronomía (Spanish Edition)

【COMPLETE SET1 2 - DIGITAL AMPLIFIERS】Theres no better way to instantly experience sound as it was intended and enjoy the fullest of life! With the MEDca digital in-ear canal hearing amplifier you'll be able to comfortably and effectively be able to hear loud and clear. With MEDca you can now get your freedom and life back with our discreet digital hearing amplifiers.
【STOP BUYING REPLACEMENT BATTERIES TODAY】This hearing amplifier is rechargeable so there is no need to keep buying replacement batteries. Each order comes complete with 2 amplifiers, 2 charging adapters, 2 protecting and carrying cases 2 straps, 4 amplifier cleaning tools, 10 ear tips, 1 owner's manual.
【TOP NOTCH SOUND QUALITY】Designed by audiologists and outfitted with the latest digital technology these hearing amplifiers offer you Top-Grade Sophistication and Performance. The Hearing Amplifiers have digital Noise Cancellation and Feedback Reduction features that allow them to deliver powerful crisp, clear sound without any annoying feedback or whistling..
【EASY TO USE! NO PROGRAMMING REQUIRED】These hearing amplifiers work hassle f....

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Alto Professional TS308 | 2000 Watt 8 Inch 2 Way Powered PA Speaker with Integrated 2-Channel Mixer and Pole or Wedge Positioning Options

Superior PA Sound – 2000W (1300 LF plus 700 HF) active PA speaker with precision crossover and high-efficiency class D amplifiers.
Driving Bass, Pristine Highs - 8-inch (305 mm) LF driver, 2.5-inch (76 mm) high-temperature voice coil.
1.4-inch (35 mm) neodymium magnet HF driver with precision wave guide.
Setup Simplified - Lightweight, PA cabinet design for easy transport, set up and installation.
pole-mountable, wedge monitor, bracket installation or flown application with M6 suspension points.
Ready for Any Situation - Integrated 2-channel mixer with dual XLR 1/4-inch combo mic/line inputs, independent level controls, XLR Link output, Contour EQ switch and Ground-Lift switch.
Precision Engineered - Designed and tuned in the USA.
This speaker features an inbuilt limiter to prevent blowing any of the internal drivers. Our TS3 series speakers feature a switchable Pre-Amp that is a part of the Volume/Gain potentiometer on the rear of the unit. Once the pot is past the 1 o’clock mark, the pre-amp input will switch to a Mic Level Pre from a Line Level Pre. It’s important to consider that these gain staged pots are parallel to the level of the output. Should users find the signal is distorting, the ‘Signal Limit’ LED will illuminate Red indicating th....

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Dayton Audio DAEX25X4-4 Bullfrog Vented Disc Spider 25mm x 4 Exciter with 320mm Cable 40W 8 Ohm

Pre-applied 3M™ VHB™ adhesive for quick, secure installation.
Four 24 mm voice coils improves power handling to 40 watts RMS.
Rare-earth neodymium motor and proprietary voice coils.
Easy 8 ohm load, can be powered by most amplifiers.

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Behringer ULTRA-DI PRO DI 4000 V2 Professional 4 Channel Active DI-Box

Professional and multi-purpose 4-channel direct injection box for stage and studio applications.
Provides impedance and signal matching for the direct connection of instruments to mixers and amplifiers.
Ultra-flat frequency response due to renowned Behringer OT-1 transformers.
Allows direct connection to speaker outputs with up to 3,000 Watts.
+20 dB gain switch for pre-amplification of low-level signals.

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Topping PRE90 Preamplifier Preamp Amplifier Pre-amp Ultra-High NFCA Modules RCA Balanced XLR Output for D90se D90 A90 EXT90 Audio DAC with Remote Control (Black)

...ignals. Pre90 could set volume memory for each input or volume memory for each output. More easy operation with the remote controller..
► Selectable XLR / RCA output: The output of Pre90 could be config to “XLR only”, "RCA only" or "XLR + RCA ". Therefore, the amplified signal can be connected to two different amplifiers. Good combination with EXT90 D90..
►Ultra-high Performance NFCA modules: It provides excellent DC and AC performance. Ultra-low noise of 0.3uv is milesahead of the competition, giving an absurdly high dynamic range of 145db and no audible noise and darkest background..
►Ext90 could extend you more inputs: A standard Pre90 provide you 1 x RCA and 1 x XLR stereo inputs. But when it working with a Ext90, they could provide totally 2 x RCA and 4 x XLR stereo inputs. This is enough for multi source systems..
►Relay volume control: A large number of high quality Japanese small signal relayIsed fovolume control of Pre90. Brings the advantages of precise control remote control, longevity, and complete channel balanceIf the volume was set high while turn on or switch in, Pre90 will automatically reduced to a safe volume to avoid your speakers/headphones blown by sudden high volume..

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Keadic 85 Pieces 10 Types Integrated Circuit Chip Assortment Kit NE555 LM324 LM393 UA741 ULN2803 LM358 LM386 NE5532 ULN2003 PC817, DIP IC Socket Set for Opamp Single Precision Timer Pwm

★1. Complete 10 Types: There are 85Pcs 10 values of integrated circuit chips to choose, including NE555 LM324 LM393 UA741 ULN2803 LM358 LM386 NE5532 ULN2003 PC817 DIP IC Sockets Solder Type Adaptor Connectors..
★2. Cost-effective: Inlcuding almost all of useful IC types for daily assembly like precision timers, dual operational amplifiers, audio amplifiers, Darlington arrays, quad operational amplifiers, etc. It will save your money, time & energy to search for some special types everywhere..
★3. Good Quality: Ourselves also use them for work & household circuit assembly. They are well made & durable, the pins are not easy to bent and can be re-aligned perfectly. If there are any issues during use, feel free to contact me please..
★4. Wide Applications: They are widely used in daily assembly, such as precision timers, dual operational amplifiers, audio amplifiers, Darlington arrays, quad operational amplifiers, a bass guitar overdrive pedal's PCB, etc..
★5. Perfect Package: Each type of DIP IC socket adaptors are packed in special compartment of clear container, besides, we also add a corresponding label to convenient for you find the right circuit chip quickly..

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NVX XKIT44 Full Spec 4 Gauge 100% OFC Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

1/0 Gauge Dual Amplifier Power Installation Kit.
Tinned conductors for corrosion resistance.
Pre-terminated seamless power and ground ring terminals.

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SoundAlert 100W Police Air Horn Amplifier Kit [118-124 dB Slim Speaker] [Manual Control or Stock Horn Bybass] [10 A Fuse Protected] Electronic Air Horn for Emergency Vehicles Trucks Cars

COMPACT - At just over 2" wide, this extra slim siren speaker easily fits on your bumper or behind your grille, and with its street clearing 118 - 124 dB rating, it gets respect wherever it goes..
UNIVERSAL - There's no need to settle, get full-sized power for any vehicle. Thanks to the small amplifier and slim speaker, this system easily mounts to anything from large SUVs all the way down to ATVs, UTVs, and Motorcycles..
UNSTOPPABLE - Encased in a durable, rust-resistant aluminum body, and carrying an impressive IP67 waterproof rating, these amplifiers stand strong, whether they're mounted under the dash of your POV or open and exposed on your side-by-side..
FLEXIBLE- Our amplifiers give you the flexibility to operate the air horn the way that you want. Whether to control it through an external switch or hands-free with the vehicle's stock horn button, is your choice to make..
PREPARED - Proper preparation is vital to the success of any endeavor because sometimes things don't go as planned. That's why we included a pre-wired 10 A fuse with our kits. No matter what happens, your vehicle and your wiring are protected..

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Keadic 169Pcs 21 Values Integrated Circuit Chip Assortment Kit, 2.54mm IC Sockets 8 14 16 18 Pins, LM324 LM358 LM386 LM393 LM339 NE5532 NE555 ULN2003 ULN2803 JRC4558 PC817 for Opamp Single Precision

...555 LM358 LM324 JRC4558 LM393 LM339 ULN2003 ULN2803 UC3843AN UC3842AN PT2399 TDA2030AN TDA2822D LM386 NE5532 & 8/14/16/18 pins 2.54mm Pitch Dual Row DIP IC Sockets Solder Type Adaptor Connectors..
❤2. Cost-effective: Inlcuding almost all of useful IC types for daily assembly like precision timers, dual operational amplifiers, audio amplifiers, Darlington arrays, quad operational amplifiers, etc. It will save your money, time & energy to search for some special types everywhere..
❤3. Good Quality: Ourselves also use them for work & household circuit assembly. They are well made & durable, the pins are not easy to bent and can be re-aligned perfectly. If there are any issues during use, feel free to contact me please..
❤4. Wide Applications: They are widely used in daily assembly, such as precision timers, dual operational amplifiers, audio amplifiers, Darlington arrays, quad operational amplifiers, a bass guitar overdrive pedal's PCB, etc..
❤5. Perfect Package: Each type of DIP IC socket adaptors are packed in special compartment of clear container, besides, we also add a corresponding label to convenient for you find the right circuit chip quickly..

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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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