Reviews Usb Preamp

JVC Refurbished KD-R490 CD Receiver featuring USB/AUX Input

  • JVC KD-R490 Single-Din In Dash Car CD Receiver Stereo Radio w/ USB/AUX/AM/FM. Single Din CD Receiver with AM/FM Tuner. RMS Power: 22 Watts. Peak Power: 50 Watts..
  • Preamp Outputs: 2-channel. Preamp Voltage: 2.5 volts. Built-in control and charging of select Android devices (Android version 4.1 and higher) using the USB connection..
  • Compatible with USB flash drives loaded with MP3, WMA, WAV, and FLAC music files (FLAC files up to 16-bit/48kHz). Plays CDs, CD-Rs, and CD-RW discs, including discs loaded with MP3 and WMA music files..
  • Detachable Face with 13-digit LCD display with red button illumination. Wireless Remote Control. 3-Band Parametric Equalizer with 15 EQ Presets. 3-Position Loudness Control. Low-Pass Filter and Subwoofer Level Control..
  • Inputs: Front Auxiliary Input and USB Port with Sliding Cover (No iPod/iPhone Control). Outputs: 2-Channel Preamp Outputs (2.5-Volt Rear/Sub). Compatible with Most Factory Steering Wheel Audio Controls (Adapter Required). Includes English and Spanish Menu Settings..
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FX AUDIO Tube Preamp with DAC HiFi Home Audio Stereo 6N3 Vacuum Tube Preamplifier for Home Theater System Active Subwoofer/ Speakers with Bass Treble Control USB/Opt/AUX Input

  • ...Replaceable 6N3 Tube and Bult-in DAC Design with High Playability】The 6N3 tube can be UPGRADED to WE369A/6H3N freely, with ES9018K2M decoding chip, and CM6642 USB chip, it supports 24Bit/192Khz, with great dynamics, high signal-to-noise ratio and low distortion, which has high playability..
  • 【2.1 Channel DAC Tube Preamp with Subwoofer Output】 Via USB/OPT/AUX input interface, the optical audio pre-amplifier can connect many audio source devices, including mobile phone, CD/DVD, laptop, set-up box etc.
  • and output to active subwoofer/2.0 stereo amplifier system, forming 2.1-channel home theater system..
  • 【Produce Richness, Clarity, Uniqueness, Warm Sound】With Bass and Treble adjustment, it sounds great, satisfies your need for more sound quality! Let you enjoy sweet and warm sound quality..
  • 【Hgih Quality and Premium After-sale Service for All Customers 】Using high quality components, built-in overheat protection circuit, with long life span and comes with a 12-month manufacturer's warranty. Besides, If there are any problems about the products , please feel free to contact us..
  • 【What You Get and Warm NOTE】 Package Includes: 1 x DAC tube preamp, 2 x 6N3 tubes, 1 x 12V power supply, 1xPC-USB cable, 1 x RCA cable, 1 x user manual. NOTE: This D....
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Steinberg UR12 USB Audio Interface

  • 1 Class-A D-PRE mic preamp supporting Plus-48V phantom power.
  • 1 Mic input(XLR) and 1 Hi-Z instrument input (TS), 2 line outputs(RCA).
  • Cross-platform compatibility with Windows, OS X and iPad (with Apple iPad Camera Connection Kit/Lightening to USB Camera Adapter).
  • USB-powered for mobile recordings with Mac and, additional USB mini socket for power source connection when used with the iPad.
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Douk Audio P1 Bluetooth Vacuum Tube Preamp Headphone Amplifier with Extra GE5654 Tubes

  • Douk Audio P1 Preamp has been acclaimed by countless audiophiles worldwide, now we upgrade 6J5 to JAN5654 / GE5654 tubes according to many audiophiles' feedback, the sound quality will be greatly improved..
  • With 3 kinds of audio input(Bluetooth/USB/RCA) and 2 kinds of output(RCA/3.5mm headphone), P1 can be used as HiFi tube Preamp, USB DAC or headphone amp with HiFi clear, warm, dynamic, sweet tube sound, bringing extremely high-quality listening experience..
  • Bluetooth 5.0 (QCC3034) supporting APTX-HD lossless transmission. PC-USB (CM6642) supporting 24bit 192KHz and compatible with Windows/Mac/Linux system, matching well with many audio devices such as iPod, Phone, MP3 players, TV, Blu-ray players, Echo Dot, CD players, etc..
  • Adopting NE5532 op amp+classic 47 headphone amp architecture which can drive 32-300 ohms headphones, and a bypass switch is specially designed to turn on/off the tone control, more convenient to enjoy original sound or obtain more delicate sound with treble and bass control knob, adding much fun and higher playability..
  • Exquisite appearance with proper size, ....
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Rockville RPA6000USB 19' 1000w 4 Chan DJ/Pro/Karaoke Amplifier/Mixer Amp w/ USB

  • Rockville RPA60BT 19" 1000 Watt 2-Channel USB and Bluetooth Karaoke Receiver/Amplifier/Mixer..
  • 19" rack mountable (removable rack brackets) digital hybrid amplifier/receiver. RMS Power @ 4 Ohms: 125w x 2. Peak Power @ 4 Ohms: 500w x 2..
  • RMS Power @ 8 Ohms: 100w x 2. Peak Power @ 8 Ohms: 400w x 2. THD: > 0.1%. Input Sensitivity: 400mv/33 KOhm. Frequency Response: 20 Hz - 20 kHz. Signal to Noise Ratio: 80 dB..
  • Tone Characteristic: 100Hz-10KHz ±12dB. 110v/220v Switchable. Front Inputs: 3.5MM front aux input, 1/4” Headphone Jack, (2) 1/4" Mic Inputs, USB Input, Optical. Rear Inputs: RCA, Optical, Coaxial. Rear Outputs: Preamp output for an external additional amplifier or powered speaker..
  • Sub preamp output to connect a powered subwoofer or an amplifier. Record output to mixer. Record output to connect a recording device. Bluetooth Capable. Rear Speaker Terminals: Banana plug / binding post outputs for 4 speakers (2 on Channel A and 2 on Channel B).
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Rockville PPA52 Preamp Pro 1U Pre-Amplifier w/Bluetooth/USB/Computer Interface

  • Rockville PPA52 Preamp Pro 1U Rack Pre-Amplifier w/Bluetooth/USB/PC Interface..
  • Top of the line professional preamp with low noise and high sound quality. Built in reliable Bluetooth audio playback with long range. Built in USB/computer interface allows you to record the master output to your DAW or to play songs from your favorite software on your computer. Built in USB MP3 player. (3) RCA aux inputs. (1) RCA Phono Input. (1) XLR and ¼” Combo jack front mic/line input. (2) ¼” Inputs (mono or stereo). (2) XLR outputs (stereo or mono)..
  • 1U rack mount size. Built-in 3 band Equalizer (bass, mid, treble). Left / Right balance adjustment. Mono/Stereo selectable. Mute. Low cut crossover filter. Headphone output for listening or monitoring. Loudness compensation circuit which at low-to-medium volume boosts the bass and treble response. 100-240V worldwide voltage power adaptor.
  • Specifications: Impedance. . Mic: 1mV / 3 Kohms. Phono: 3mV / 47 Kohms. Pre-Output: max. 5V / 1 Kohms. Total Harmonic Distortion. . Mic: less than 0.02%. Phono: less than 0.04%. RCA Aux: less than 0.01%. Signal to Noise Ratio. . Mic: more than 70 dB. Phono: more than 90 dB. RCA Aux: more than 100 dB..
  • General: Product weight: 4.43 lbs. Product dimensions: 18.89" x 6.49" x 1.73".
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2007 Grammy Nominees

  • Integrated Bluetooth technology, one-touch listening with NFC, Front USB for iOS & msc/mtp USB devices. Built-in mic.
  • USB playback supports MP3/wma/a AC/wav/FLAC, siriusxm satellite Radio ready, works with Pandora (iOS and Android).
  • Siri control for hands-free control of your iOS Device, advanced sound with EQ5, Mega bass, and lpf Crossover, 2-volt rear and sub RCA preamp outputs.
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NAD PP4 Digital Phono USB Preamplifier

  • ...ION: Built-in Bluetooth for wireless music streaming receiver that ranges up to 25’+ ft with digital LCD display. It works with all of today’s latest devices such as iPhone, android, smartphone, iPad, tablets, computer and the likes.
  • AUX INPUT AND OUTPUT: This receiver/preamp also features two sets of RCA inputs, RCA preamp out, 2 Mono RCA's for subwoofer output, and Bluetooth that wirelessly connects to your iPod and MP3 player. Also, an FM antenna for better signal reception.
  • FRONT CONTROL CENTER: The front panel button control center consists of a power switch, independent input source selectable, bass, treble, mid, balance and master volume adjustment. Also, pack with headphone jack, USB flash and SD memory card readers.
  • REMOTE CONTROL: A simple and user-friendly remote control is included with the PPRE70BT, providing all the functionality you need from switching input sources. And, it will allow you to access all functions of the receiver quickly and efficiently.
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VOX Valvetronix VT20X Modeling Amplifier,Black

  • |20 Watt Modeling Amplifier| The VT20X is rated at 20 Watts making it the ideal choice for an at-home amplifier, combining sophisticated modeling....
  • |12AX7 Preamp Tube| Multi-stage Valvetronix tube preamp design incorporates authentic analog circuitry to achieve the subtle tonal adjustments and....
  • |Ultimate Versatility| 11 realistic amp models and 13 high quality on-board effects allow you to craft your signature tone, and save it across 33....
  • |AUX In & Headphone Out| Aux in jack and headphone output make silently practicing or recording simple. Use the USB connection to dive deeper into....
  • |Small But Loud| The compact combo amplifier is designed with a tightly sealed cabinet and a proprietary bass-reflex design to deliver stunning....
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Rockville Hybrid Bluetooth Karaoke Home Theater System and (4) 4\ Speakers+(2) Mics

  • ...Tone Characteristic: 100 Hz - 10 kHz +/-12dB, 110v/220v switchable.
  • 19" Rack Mountable (Removable Rack Brackets) Digital Hybrid Amplifier/Receiver, Inputs On Front of Unit, lpod/MP3 - 1/8" mini jack style, 1/4" headphone jack, 1/4" Mic 1 and Mic 2 Inputs,USB Input, Rear Inputs: RCA Input for DVD or CD, Rear Outputs: Preamp output for an external additional amplifier or powered speaker,Sub preamp output to connect a powered subwoofer or an amplifier,Record output to connect a recording device,Rear Speaker Terminals: Banana plug / binding post outputs for speakers.
  • Bluetooth Capable, Built-in Preamplifier, Multicolor LED display, Digital Quartz Synthesized AM / FM tuner w/50 presets & auto scan, Preset EQ: Rock, Pop, Classical, Jazz, Remote control for quick access to all functions, Vacuum Fluorescent Digital output display meters, Separate gain controls for pre-amp & subwoofer, Digital karaoke system, 2 front microphone inputs w/volume, tone and echo controls, Built-in mic mixer with echo control, USB input for music files from USB thumb drive.
  • Features of HP4S-8: Pair of RockvilIe HP4S-8 4" Black 360 Watt Outdoor / Indoor Home Theater Speakers with Swivel Bracket, Peak Power Handling: 360 Watts (per pair), RMS Power Handling: 120 Watts (per pair), IPX44....
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DYNASTY PROAUDIO UA2D USB Phono Preamp for Turntable, Preamp with RIAA Equalized Low Noise Moving Magnet A/D Converter (Power Adaptor & USB Cable Included)

  • ✅The Dynasty ProAudio UA2D has the ability to be connected with all kinds of turntables with moving magnet (MM) cart- ridge or line level audio devices (tape recorders etc. ), easily transfer and convert from your favor albums vinyl records to your computer or laptop into a digital format file for organization..
  • ✅High performance USB audio interface Integrated, built-in with a premium circuit technology and components phono preamp that allow you to amplify an RIAA equalized low noise Phono and Line level audio signals. Simply connect it to your desktop and laptop computer’s USB port for recording with true-to-original sound and no quality loss..
  • ✅The Dynasty ProAudio comes with USB audio driver technology that ensures latency free operation to a new level, which supports 48/44. 1 KHz sampling rate for both monitoring and recording..
  • ✅Can be used as a Phono preamp for any vinyl playback system, amplifies the signal from your turntable to levels that allow you to connect it to your sound system..
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AudioQuest Dragonfly USB Stick DAC Bundle with AudioQuest USB-C/A Adapter - Cobalt

  • This bundle includes (1) AudioQuest DragonFly USB DAC and (1) AudioQuest USB Adapter.
  • USB Stick–Sized Digital–to–Analog Converter.
  • 32–bit ESS 9010 DAC with minimum–phase filter.
  • Drives headphones directly and connects to preamp or AV receiver.
  • 1.2 Volt Medium output with 32bit processing.
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UpBright 9V AC/AC Adapter Compatible with Art Tube MP Studio V3 Preamplifier Variable Valve Voicing Tube Microphone Mic Preamp TubeMPSTV3, AQualities MA410910 Class 2 Transformer 9VAC Power Supply

  • AC Input Voltage: 110V-117V-120VAC 60Hz or 220V-230V-240VAC 50Hz Suitable Input Voltage For Your Country/Area.
  • Tested Units. In Great Working Condition.UpBright 30 days money back guarantee. 1 full year service warranty..
  • UpBright New 9V AC / AC Adapter Compatible with ART Tube MP Studio V3 Preamplifier Variable Valve Voicing Tube Microphone Mic Preamp TubeMPSTV3, AQualities MA410910 Class 2 Transformer 9VAC Power Supply Cord Cable PS Wall Home Battery Charger Mains PSU.
  • Fits: ART USB Dual Tube Pre Preamp Computer interface Power Supply.
  • ART Tube MP/C Single Channel Tube Preamp Compressor Power Supply.
  • 9V Maxim MA Series MA410910 MA480908 MA480915 Class 2 II Transformer 9VAC Power Supply (with Barrel Round Plug Tip).
  • x0xb0x 2 Mode Machines xoxbox2 MKII Power Supply.
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