Rockville PPA20 Preamp Professional 1U Rack Mount Pre-Amplifier w/CrossoverEQ
Rockville PPA20 Rack Mount Pre-Amplifier
1U Rack Size
1/4" microphone input
RCA PHONO / AUX1 / AUX2 / AUX3 / AUX4 / AUX5 inputs
1/4" headphone output
RCA REC / LINE outputs
XLR master output ( left, right )
Headphone volume & Microphone volume controls
3 band EQ (Treble / Mid / Bass)
L / R balance
Input source switch
Mono / Stereo switch
Low cut crossover control allows you to cut off certain frequencies which comes in handy when using turntables, subs, and other gear. This function will allow you to play your music louder, with lower distortion and make your speakers last longer
Treble / Bass control
Loudness compensation circuit which at low-to-medium volume boosts the bass and treble response
Ground lift switch
Unit dimensions: 18.89 x 6.49 x 1.73 inches
Unit weight: 4.43 lbs
Shipping dimensions: 20.47 x 8.46 x 4.33 inches
Shipping weight: 5.73 lbs
110/220 switchable power supply (fuse: 0.2A)
- Rockville PPA20 Rack Mount Pre-Amplifier. 1U Rack Size. 1/4" microphone input. RCA PHONO / AUX1 / AUX2 / AUX3 / AUX4 / AUX5 inputs. 1/4" headphone output. RCA REC / LINE outputs. XLR master output ( left, right ). Headphone volume & Microphone volume controls. 3 band EQ (Treble / Mid / Bass). Master volume. L / R balance. Input source switch. Mono / Stereo switch. Mute.
- Low cut crossover control allows you to cut off certain frequencies which comes in handy when using turntables, subs, and other gear. This function will allow you to play your music louder, with lower distortion and make your speakers last longer. Treble / Bass control. Loudness compensation circuit which at low-to-medium volume boosts the bass and treble response. Tape Monitor . Ground lift switch.
- Unit dimensions: 18.89" x 6.49" x 1.73" inches. Unit weight: 4.43 lbs. Shipping dimensions: 20.47" x 8.46" x 4.33" inches. Shipping weight: 5.73 lbs. 110/220 switchable power supply (fuse: 0.2A)
- Inputs Sensitivity/Impedance. Mic: 1mV / 3 Kohms. Phono: 3mV / 47 Kohms. Tape, Tuner, CD, Aux: 150mV / 22 Kohms. Output/Impedance. Tape Rec: 150mV / 3 Kohms. Pre Output: max. 11V / 1 Kohms. Total Harmonic Distortation. Mic: less than 0.02. Phono: less than 0.04. Tape, Tuner, CD, Aux: less than 0.01. Signal To Noise Ration. Mic: more than 70 dB. Phono: more than 90 dB. Tape, Tuner, CD, Aux: more than 100 dB.
- Frequency Response: 5Hz . 30kHz 0, -3 dB. Bass: 12dB at 100Hz. Midrange: 9dB at 1 Hz. Treble: 12dB at 10kHz. Loudness: 9/0/9dB at 100/1k/10kHz. Mute: 20dB. Power: 120V or 230V, 50/60Hz. Power Consumption: 15W.
Mono Stereo Preamplifier Home Audio - Rack Mount Preamp For Turntable Phono, Tape Record/Player To Amplifiers/Sound Systems - Stereo Pre Amp W/ Microphone/Tuner/CD/AUX/Phono Input RCA - Pyramid PR2500
Pyramid Model : PR2500
Stereo Control Pre-Amplifiers
- HIGH/LOW FREQUENCY FILTER: Features low-frequency filter to eliminate rumble of turntable/other undesirable low-frequency noise and to minimize distortion from warped record, and high-frequency filter to reduce/eliminate scratch noise of record
- SOURCE SELECTOR: phono pre amp is equipped w/ independent source selectors including tape to playback signal of the connected tape deck, tuner for AM FM tuner signal, CD for CD player, PHONO for turntable, and AUX for other connected devices
- FRONT CONTROL PANEL: The stereo control pre-amplifier has front panel control center w/ ON/OFF switch w/ LED indicator, mic in w/ level control, bass/mid range/treble/loudness/balance/ master volume rotary control to easily balance audio levels
- MICROPHONE JACK: The pre amp is equipped w/ microphone input jack w/ level control in the front panel to easily record vocals. It also has stereo/mono switch to select from stereo or mono input signal and muting switch to reduce level by 20dB
- AC SELECTOR: Slide the AC source selector switch to choose the type of ac source between 110V and 220V. It also has a fuse holder that contains an AC primary fuse. Measures 19"W x 2.375"H x 8.5"D and has a rack mount design for easy installation
Nobsound Bluetooth HiFi 6J2 Vacuum Tube Preamplifier Stereo PreAmp Digital Treble & Bass Tone Control (Black)
Some customers may find the Bluetooth can't be connected or found. Here is the solution.
1. Power off the M8 and your phone.
2. Wait for 5s and then power on both.
3. If it still can't be discovered, repeat 1 and 2 and it should work.
If the problem can't be solved, please visit https://www.amazon.com/sp?seller=ADPE7GPX91ORE and click "ask a question" to contact us.
- Please note that this product is a preamplifier. It is not an amplifier and needs to be connected with an amplifier or active audio devices. Also, it is not a phono preamp and can't work with a turntable. For noise issue:
- There is a large probability that the low-quality audio cable causes the static noise.
- Please make sure the sound source is fine since tube amplifiers will amplify all sound including the noise.
- Please check whether the tubes are plugged well on the tube sockets or not.
- Devices like routers, mobile phones will also interfere in the audio signal and may cause static noise.
- If your problem can't be solved, please feel free to contact us. We will be very glad to help you and try our best to make you satisfied.
- Audio input: 1 set of RCA input; 1 * 3.5mm stereo input; 1 * Bluetooth input
- Audio output: 1 set of RCA output
- Dimensions: 16*11.5*7 cm (including tube height)
- Power supply: universal 12V DC
- 1 * PreAmp
- 1 * Power supply
- 3 * 6J2 tube (one spare tube)
- 1 * Bluetooth antenna
- Notice: Preamplifier needs to work with amplifiers or active devices; Not PHONO preamp and can't be used for record players
- Vacuum tube preamp with Bluetooth; Convenient to improve your sound quality
- Audio signal input can be computer, CD, phone and lossless player; Three kinds of audio input: RCA; 3.5mm stereo input; Bluetooth
- Easily switching between different sound sources with its audio input selection
- Treble & bass adjustment; Sound is warm and broad; No background noise; Gold-plated for input and output terminals; 6J2 valve tube; Mini size suitable for desktop
4-Channel Home Audio Power Amplifier - 3000 Watt Stereo Receiver w/Speaker Selector, AM FM Radio, USB, Headphone, Microphone Input - Great for Karaoke and Home Entertainment System - Pyle P3201ATU
PylePro Model : P3201ATU
Hybrid Home Stereo Receiver Amplifier
3000 Watts Hybrid Home Stereo Receiver Amplifier w/ AM/FM Tuner/ USB
- Separate gain control for preamp and subwoofer
- 3000 Watts Peak Power
- 800 Watts @ 2 ohms
- 550 Watts @ 4 Ohms
- 300 watts @ 8 ohms
- Inputs: RCA (2 Audio Sources)
- Outputs: Banana Binding Post (to Speakers)
- 1 RCA dedicated for Preamp output
- 2 Mono RCA dedicated for Subwoofer Output
- 1 RCA dedicated for Preamp Output
- Digital Flourescent Output Display Meter
- iPod/ MP3 Input with Cable
- USB Reader Function
- Dimensions: 19" (W) x 3.5"(H) x 13"(D)
- Weight: 14.7 Lbs
- 110/220V Switchable
- AM/FM Quartz Synthesized Tuner
The Pyle Pro P3201ATU is the perfect solution if you are looking for a High-Fidelity Preamplifier and a Power Amplifier all in one. This Receiver / Preamp features two sets of RCA inputs, RCA line out for recording, RCA preamp out, 2 Mono RCA's for subwoofer output, and iPod and MP3 player input via 3.5mm Cable. Plus, a USB port for plugging in your favorite digital music in MP3 format. Seperate gain control for preamp and subwoofer channels makes it easy to fine tune the levels of your audio. The P3201ATU produces 3000 Watts Peak Power, 800 Watts @ 2 ohms, 550 Watts @ 4 Ohms, and 300 watts @ 8 ohms. Pyle has been in business for over 35 years, and their manufacturing experience and expertise is easy to see - and hear.
- 3000-WATT POWER: The Pyle 4 Channel Pre-Amplifier is perfect for your home entertainment system. It gives you 3000 watts peak power to be used for multi speakers w/ 2-8 ohms impedance allowing you to enjoy high quality audio
- 7 INPUTS: The personal portable digital amp box supports headphone, USB, iPod, MP3, AM FM tuner, AUX, DVD CD player, 2 microphone input w/ echo for karaoke or event hosting, rec line, 1 RCA preamp output and 2 mono RCA dedicated for subwoofer
- A/B SPEAKER SELECTOR: The professional integrated stereo receiver has A/B speaker selector enabling you to choose b/w speaker set. Use either A or B speakers or both. Note that when it is turned on initially it uses both speakers as default
- EQ CONTROLS: The sound amplifying device has crisp buttons for the audio sources and selectors, rotary knob for equalization and master volume adjustments. It also features blue LED lights which brightness can be adjusted through the LED dimmer
- DISPLAY METER: The new and improved compact amplifier has a built-in digital fluorescent output display meter which displays all the functions and input used. A remote control for distant audio adjustments and 3.5mm cable are included in the package
- Separate gain control for preamp and subwoofer - 3000 Watts Peak Power - 800 Watts @ 2 ohms - 550 Watts @ 4 Ohms - 300 watts @ 8 ohms
- Inputs: RCA (2 Audio Sources) - Outputs: Banana Binding Post (to Speakers) - 1 RCA dedicated for Preamp output
- 2 Mono RCA dedicated for Subwoofer Output - 1 RCA dedicated for Preamp Output - Digital Flourescent Output Display Meter - iPod/MP3 Input with Cable
- USB Reader Function - Dimensions: 19" (W) x 3.5"(H) x 13"(D) - Weight: 14.7 Lbs
- 110/220V Switchable - AM/FM Quartz Synthesized Tuner
Pyle Updated Pyle Stereo Preamplifier, Home Entertainment Receiver, Bluetooth Amp, RCA Audio Input, 2 Channel Amp, AM/FM Radio with LCD Display, MP3/USB/AUX, Remote Control, AC Power Cable (PT395)
The Pyle Hybrid Bluetooth Home Theater Pre-Amplifier Receiver brings music to any room with crystal clear clarity. This two-channel compact size, high-power system can power multiple speakers -- for all of your home theater entertainment needs. System features include AM/FM radio with 50 station memory presets, USB flash memory reader for MP3 digital audio file playback, Aux (3.5mm) input to connect external devices like smartphones and tablets, (2) 1/4'' microphone input jacks along with RCA audio inputs and outputs. The system also includes AM/FM antennas, remote control and audio connection cable.
- Power Hybrid Pre-Amplifier
- 2-Channel Amp Powers up to (4) Speakers
- Bluetooth Wireless Music Streaming Ability
- AM/FM Radio with LCD Display
- MP3 Digital Audio File Support
- USB Flash Drive Reader
- Aux (3.5mm) Input Connector
- Ability to Connect External Devices
- RCA (L/R) Audio Inputs / Outputs
- Pre & Sub Output Connectors
- Speaker Terminal (L/R) Connectors
- (2) 1/4'' Microphone Input Jacks
- Front Panel Button Control Center
- Volume, Bass, Treble, Echo Adjustable
- Built-in Cooling Fan
- Receives Wireless Signal for Audio Streaming
- Works with All of Your Favorite Devices
- (Smartphones, Tablets, Laptops, Computers, etc.)
- Bluetooth Version: 3.0
- Bluetooth Network Name: 'ROCK'
- Bluetooth Wireless Range: 35' Ft.
- Bluetooth Network Password: '0000'
What's in the Box:
- Hybrid Amp
- Remote Control
- AC Power Cable
- AM & FM Antennas
- Audio (3.5mm) Input Cable
- User Manual
- MAX Power Output: 2000 Watt
- Frequency Response: 40Hz-15kHz, /-2dB
- Impedance: 8Ohm
- S/N Ratio: >76dB
- T.H.D.: <1
- Radio Station Memory Presets: 50 Stations
- Max. USB Flash Drive Support Size: 32GB
- Digital Audio File Support: MP3, WMA, WAV, APE, FLAC
- Power: 110/220V, Switchable
- Dimensions: 17.3'' x 13.0'' x 3.5''
- Sold as: 1
- Weight: 18.98 lbs.
- Use the home theater preamp to connect some mics for a karaoke party and adjust the volume, balance, treble and bass on the master output for total control of your sound.
- The two-channel pre amp receiver has the ability to power several speakers, making it ideal for all of your home theater entertainment needs.
- The stereo preamp features the ability to wirelessly stream music. It works with all your favorite devices like smartphones, tablets, laptops, computers, etc.
- The preamplifier stereo system packs a massive 2,000-watt power output at a maximum load impedance of eight Ohm.
- The preamp receiver adopts advanced digital techniques including high-powered, two-channel dual zone outputs along with sub-out and pre-outs to facilitate the media center of your home.
Cambridge Audio Azur DacMagic Plus Digital to Analogue Convert, Black
Performance and Features That Belie the Affordable Price: Cambridge Audio DacMagic Plus Touts Wireless Connectivity, Twin Wolfson 24-Bit DACs, AFT2 Upsampling, Asynchronous USB Input Cambridge Audio 's DacMagic Plus ups the ante on how much DAC you can get for 600. Consider: Twin Wolfson 24-bit DACs in dual differential configuration. AFT2 24-bit/384kHz up sampling and jitter reduction. Asynchronous USB input. Selectable digital filters. Balanced XLR output and RCA phono output. External input for an optional Cambridge Audio BT100 Bluetooth receiver for wireless streaming from any Bluetooth device. And tremendously good sound no matter what format you throw its way. Designed in London, DacMagic Plus instantly improves audio from any imaginable digital source and turns your computer, TV, Blu-ray player, and other devices into an essential link in the chain of your hi-fi system . After taking a direct digital audio signal from your device, bypassing its DAC, DacMagic Plus upgrades it via the ATF2 upsampling system. Simply put, DacMagic Plus outputs your music in a much purer, realistic, analog-like signal to your amplifier. DacMagic Plus also doubles as a hard-working digital preamplifier and is created to pair with the aptX-compatible Cambridge Audio BT100 Bluetooth receiver, which allows wireless streaming from Bluetooth-enabled devices. Is there a better DAC/preamplifier combination on the market for less? Our 100 Satisfaction Guarantee allows you to find out for yourself without any risk. "Better sound and better features than the original... sound is detailed, subtle and fast" - What Hi-Fi "It has an open and revealing character that is strong on timing... comes highly recommended." - Hi-Fi Choice , Recommended Product review "If you are contemplating putting together a high-quality desktop audio system, or
- Wireless Connectivity
- Twin Wolfson 24-Bit DACs
- AFT2 Upsampling
- Asychronous USB Input
- Doubles as a hard-working digital preamplifier
Stereo Audio Booster with Volume Control 20dB Gain
High-Gain Stereo Amp/Preamp With 20dB Gain Volume Controller
This mini compact stereo amplifier is designed to boost the output of virtually any line level audio source such as TV audio, video games, MP3 players, iPod etc with additional 20 dB boost.
This amplifier supports connection with all different type of audio source equipments that output in RCA L/R, 3.5mm stereo mini type or 5-Pin DIN type. The boost level or volume control is easily and manually adjustable from the rotary dial on the front panel.
This high-gain low-noise amp/pre-amp is ideal for both home and professional studio, computer multimedia production, karaoke and mixer application.
Line Level Source Matching For Optimum Performance
This mini amp provides users with an excellent solution for matching the sonic level from iPod, MP3/MP4, iPad, Tablet, CD player and mobile devices with Hi-Fi system, audio receiver, computer, loud speakers.
Adjustable Gain Control For Long Cable Run
This mini amplifier provides up to 20dB boost for audio signal to be transmitted over long cable wire without loss of quality and overcome signal level losses caused the cabling.
External Volume Controller
This unit can also be used to provide an external way of volume control for any audio source device or stereo amplifier that has no output level or volume adjustment of its own.
A volume control dial for variable line level output is located on the front panel.
Multiple Audio Inputs
This rugged compact stereo preamp/amplifier is featured with multiple audio inputs for connection with multiple audio sources:
- RCA stereo L/R x 1
- Auxiliary 3.5mm min stereo Input x 1Note: This 3.5mm input on front panel will disable the stereo RCA L/R input from the back when used)
- Aux 5- DIN input x 1
- Quality preamp or mini amp with adjustable amplification max 20dB. Built-in high-end amplification circuits with ultra low-noise audio operation for outstanding performance. Featured with multiple audio inputs including 1 RCA stereo L/R, 1 Auxiliary 3.5mm headphone Input, 1 5-Pin DIN input.
- Boosting the output from low-volume audio sources such as tape player, potable CD player, MP3, TV or computer. Correcting the sonic mismatch issues that often cause portable players to be lower in volume than other home audio devices, resulting in distorted sound performance. Increasing the volume level for mixer or speaker setup, karaoke, audio recording, party, live stage event.
- Helping installation with longer cable run between audio components. Adjustable gain to boost low-level audio inputs to the level needed to drive amplifier or receiver properly. Excellent solution for matching the sonic level from iPod, MP3/MP4, iPad, Tablet, CD player with Hi-Fi system, audio receiver, computer, loud speakers.
- Provides low-noise floor and high musical accuracy for listening and recording. Used as amplifier for karaoke players or CD/DVD player to transform your stereo music to thrilled sound for party or outdoor events. Provide an external way of volume control for any audio source device or stereo amplifier that has no output level or volume adjustment of its own.
- Compact and all-metal design for durability and shielding the electronics from electromagnetic interference with noise rejection. 110V AC/DC power adapter included.
4-Channel Home Theater Bluetooth Preamplifier - 3000 Watt Stereo Speaker Home Audio Receiver Preamp w/ Radio, USB, 2 Microphone w/ Echo for Karaoke, CD DVD Player, LCD, Rack Mount - Pyle PD3000BT
Pyle Model : PD3000BT
Pro Audio Home Theater Preamplifier
Bluetooth Home Theater Preamplifier - Pro Audio Stereo Receiver System with CD/DVD Player, MP3/USB Reader, AM/FM Radio (3000 Watt)Features:
What's in the Box:
- 3000 WATT POWER: The Pyle 4 Channel Bluetooth Home Stereo Receiver Preamplifier is perfect for your karaoke and home entertainment sound system. Gives you 3000W peak that powers up to 4 speakers w/ 4-8 ohm impedance let you enjoy high-quality audio
- 6 INPUTS: The speaker amplifier home audio box supports headphone, USB, MP3, AM/FM tuner, AUX, front loading CD DVD player, 2 microphone inputs w/ an echo effect for karaoke, 2 RCA audio inputs, RCA output for a subwoofer, and optical audio output
- BLUETOOTH-COMPATIBLE: The professional integrated AM FM stereo receiver for home is equipped w/ Bluetooth wireless music streaming. Works w/ today's latest devices including iPhone, smartphone, iPad, and computers w/ hassle-free receiver pairing
- EQ CONTROLS: The speaker sound receiver for home stereo has crisp buttons for the audio sources and selectors, rotary knob for equalization and master volume adjustments w/ controls for mic, echo, treble, bass, volume, subwoofer controls
- DISPLAY METER: The Pyle bluetooth stereo amplifier receiver preamp has a front panel control center w/ digital LCD display which shows all the functions and input used. Remote control is also included in the package for distant audio adjustments
Depusheng K-200 Preamp Professional 1U Rack Mount Pre-Amplifier
Our professional power amplifier adopts fashionable appearance design, and the panel is equipped with LED indicator lights that can display the real-time working status of the power amplifier to show the working status at a glance. It is composed of a newly developed high-performance class H amplifier and an analog ring transformer power supply, featuring low energy consumption and beautiful sound. The class H amplifier developed by our company is suitable for music and voice amplification in various places, as well as large-scale performances and speech occasions.
Other Indicators: K-200
Frequency Response: 20Hz-20KHz0.3dB
Total Harmonic Distortion: < 0.03 @ 81 khz
Signal to Noise Ratio: > 93dB
Transient Response: 35V/S
Damping Coefficient: > 300
Crosstalk: > 70db @ 81khz
Input Sensitivity: 0.775V/1.0V/1.4V.
Input Impedance: 10K/20K
Voltage Gain (Sensitivity: 8 Ohm): 38dB
Output Circuit: Class H
Cooling System: Ventilation from front to back
Protection: Soft Start / VHF / DC / Short Circuit / Overload / Distortion Voltage Limiting / Overheating Protection / Starting Volume Increasing
Input Part: Balanced input XLR female socket / balanced parallel connection XLR male socket
Output Part: 2 red and black terminals /Speakon(NL4) socket
Size & Weight
Overall Dimensions of Products: (1U)
Gross Weight (0.2KG)
Power Supply: Pluggable 13A Power Cord AC 110 V/50Hz. 10
- Sweep frequency test controls the speaker to be accurate and natural. Low noise, suitable for performances in various occasions.
- Power supply soft start anti-impact function, DC output protection function, overload and overheating protection make the system safe and reliable.
- The input/output signal comparison circuit is used to reduce clipping and clipping to protect the loudspeaker system. The front LED indicator shows the working status at a glance, making the operation and adjustment easier.
- Air draft type heat dissipation system has high heat dissipation efficiency, timely discharge of heat and longer working time of power amplifier.
- With stereo, bridge, parallel connection and SPEAKON Caron socket, it can connect speakers conveniently, quickly and reliably.
Douk Audio Mini 6J1 Valve & Vacuum Tube Pre-Amplifier Stereo HiFi Buffer Preamp(Silver)
- Dimensions: 98 * 100 * 32 mm (without knobs and terminals)
- Power supply: DC12V 1A
- Frequency response: 20Hz (-0.2dB) 20KHz (-0.2dB)
- SNR: 100dB
- Input sensitivity: 300mV 2000mV
- Output: 3000mV
- THD: 1000mV 0.1
- Weight: 350g
- 1 * amplifier
- 2 * 6J1 tube
- 1 * power supply
- Notice: Preamplifier needs to work with amplifiers or active devices; Not PHONO preamp and can't be used for record players
- Classic 6J1 tubes with optimized circuit offer classic music experience
- Tube can be replaced by 6ж1П, 6AK5,6BC5, EF40, EF95, CV8505654; Much fun and high playability
- DC12V 1A universal power supply; Can be used in most countries and regions
- All aluminium alloy shell; Gold-plated terminals; ENIG PCB
- Libra scales of justice
- Wormwood capsules now
- Pocket rockers toys
- Hampton fitness rubber weight
- Los angeles lakers can coolers
- Heater valve 1 2