Best Audio Frequency Adjustment

SUCA AUDIO Tube Preamplifier for Home Audio Player Mini Hi-Fi Stereo Preamp with Treble & Bass Control (6K4 Tubes)

  • ...ACE the tube to tweaking the sound. 6j1,6j2,6J4,GE5654,6AK5 and 6*1n tubes are suitable for this preamp..
  • ♪ BASS &TREBLE CONTROL - The vacuum tube preamplifier can independently adjust the bass and the specific proportion components in high-frequency sound to perfectly achieve HiFi effects.It ensures more delicate adjustment of music to satisfy your experience of different sound styles according to your preference..
  • ♪ HIGH QUALITY & AFTER SALE SERVICE - Uses accurate and stable integrated circuits and high-quality components to eliminate low-frequency noise and ensure clear sound quality. The all aluminum alloy shell also makes it durable for use. We provide 12-month manufacturer's warranty, no risk purchase..
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Recoil VC-R100 100W Impedance Matching Wall Mount Volume Control Knob, Flush in-Wall Plate Rotary Knob for Hi-Fi Home Audio, for Dedicated Audio Zone Volume Adjustment, White Ivory Plates Included

  • HIGH POWER: The VC-R100 is rated at 100 Watts per channel with minimal bass roll-off. It includes adjustable jumpers to add up to eight pairs of 8-ohm speakers simultaneously..
  • ROTARY KNOB ADJUSTMENT: This 12-step linear rotary-style knob controls allow you to adjust the volume of a pair of speakers independently within various areas of your home, office or business applications..
  • MULTI SPEAKERS CONNECTION: Add up to 8 pair of speakers throughout your house and control them all from this wall plate volume control. It maintains the full hi-fi audio frequency response with no low frequency roll-off.
  • WIDE FREQUENCY RESPONSE: Recoil VC-R100 controls your speakers to deliver a rich quality sound. This in-wall volume control is designed for wide frequency response 20Hz – 20kHz range reproducing high-fidelity sound.
  • IN-WALL/WALL PLATE: This whole-house volume control is a universal standard decorative flush in-wall or wall mount installation finishing plate. It includes white and ivory plates, and other installation accessories..
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Rockville Professional Powered Active 800w DJ PA Speaker w Bluetooth, 15 inch (BPA15)

  • ...reproduction. Ultra-wide dispersion, 45 large-format horizontal wave guide horn molded directly into cabinet. Ultra-low noise Mic / Line input via combo XLR & 1/4-inch TRS stereo jacks with volume control.
  • Built In high quality crossover to filter out unwanted frequencies. Line RCA and XLR input with separate Volume adjustment.. 1/4" TRS balanced line output. Additional XLR line output. Versatile trapezoidal enclosure design allows different positioning. Stand mounting with 35-mm pole socket. Flyable. Ergonomically shaped side handle for easy carrying and setup. Built-in wheels and handle for increased portability and transport convenience.
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Technical Pro RX55URIBT Home Receiver+(4) 5.25\ White Ceiling Speakers+Subwoofer

  • ...uetooth Range: 30 Feet. Digital fluorescent output display meter. Bass, treble and balance controls. Repeat / Random playback on USB / SD Card inputs. Dual 1/4'' microphone inputs with volume, echo, and tone controls. Built-in Dual 7 Band Equalizers. Equalizations Points: 62Hz, 160Hz, 400Hz, 1kHz, 3kHz, 8kHz, 16kHz.
  • Adjustment Range: 12dB. Remote Control. Frequency Response: 20Hz-20KHz. LENGTH 17". HEIGHT 5.1". DEPTH 10". 110/220V. Features: Pair of RockvilIe HC55 5.25 White 300 Watt 2-Way In-Ceiling Home Theater Speakers.
  • Peak Power Handling: 150 Watts (per speaker) / 300 Watts (per pair). RMS Power Handling: 60 Watts (per speaker) / 120 Watts (per pair). Polypropylene Cone. Rubber Surround. 5.25 Woofer. 1 Aluminum Voice Coil. Mylar Dome Tweeter. 8 oz. Ferrite Magnet. High Quality Spring Loaded Push Terminals. Aim-able Swivel Tweeter. Paintable Flush Mount Grills. Frequency Response: 80Hz 20KHz. Sensitivity: 88dB. Impedance: 8 Ohms. Mounting Depth: 2.6. Cut-out Diameter: 6.5. Color: White (paintable).
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Pyle PLVHL70 2-Channel High-Level To Low-Level Converter with 12V Remote Turn-On

  • ...O LOW: The Converter allows you to get RCA line level outputs from your high-level output device. It also can convert the high-voltage signal output of the amplifier or speaker to the low-voltage signal, improve sound quality.
  • ADJUSTABLE ATTENUATION: Provide the level gain adjustment. Use the adjustment rotate button, you can adjust the bass down without having to pull over and manually adjust the input level of the amplifier to the minimal one, very convenience.
  • HIGH-QUALITY SOUND: No need to worry about interrupted sound, static or loss of quality during an important event because this cable is made with highly durable construction and delivers premium performance without noise, static, or buzzing.
  • EASY TO INSTALL: Provides amplifier remote turn-on output w/out removing car stereo. Just connect the wire between the speaker & the amplifier. Red input.
  • Connect to the amp line of the right channel. White input.
  • MAXIMUM INPUT POWER: Constructed from durable aluminum alloy. 45W per channel.
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PolarLander Car Radio Audio USB/SD/MP3 Player Receiver Bluetooth Hands-Free with Remote Control Black 1 Din

  • ☆Intelligent Bluetooth Call: Supports hands-free calls , making it convenient to receive calls and safe to drive. No need to pick up the phone using hands which provides guarantee for safety driving..
  • ☆Radio Function: FM radio with high-quality digital stereo, which can search channels in full-automatic way,semiautomatic way and accurate adjustment way.Support the three-band radio store(FM1-FM2-FM3),which can store 18 radio channels in advance.( Radio Frequency: 87.5-108MHz).
  • ☆Support Dual USB(U disk) /SD card playing: Support vast USB/SD storage equipment,and you can download the songs you like into the storage equipment to play,which is very convenient.(I have tested in person that memory card with 32GB storage can be played in a flash) (Only support 5V charging).
  • ☆AUX audio input: Support external AUX(3.5MM plug) to onput into the audio,such as navigation,MP3,MP5,Mobile phone audio and so on,input through the front-terminal AUX audio, and output sound from the car's speaker.
  • ☆Support the adjusting of multiple sound effect models and independent output(for example: Treble, Bass, Balance, Fader),Support name indication of ID3 English songs. Support folder play function. Sound effect models: classic,jazz,pop,rock..
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Technical Pro RX55URIBT Home Receiver+(2) 5.25\ White Ceiling Speakers+Subwoofer

  • ...uetooth Range: 30 Feet. Digital fluorescent output display meter. Bass, treble and balance controls. Repeat / Random playback on USB / SD Card inputs. Dual 1/4'' microphone inputs with volume, echo, and tone controls. Built-in Dual 7 Band Equalizers. Equalizations Points: 62Hz, 160Hz, 400Hz, 1kHz, 3kHz, 8kHz, 16kHz.
  • Adjustment Range: 12dB. Remote Control. Frequency Response: 20Hz-20KHz. LENGTH 17". HEIGHT 5.1". DEPTH 10". 110/220V. Full Factory Warranty. Lifetime Customer Service by Technical Pro product experts. Guaranteed legitimate and authentic merchandise. Features: Pair of RockvilIe HC55 5.25 White 300 Watt 2-Way In-Ceiling Home Theater Speakers.
  • Peak Power Handling: 150 Watts (per speaker) / 300 Watts (per pair). RMS Power Handling: 60 Watts (per speaker) / 120 Watts (per pair). Polypropylene Cone. Rubber Surround. 5.25 Woofer. 1 Aluminum Voice Coil. Mylar Dome Tweeter. 8 oz. Ferrite Magnet. High Quality Spring Loaded Push Terminals. Aim-able Swivel Tweeter. Paintable Flush Mount Grills. Frequency Response: 80Hz 20KHz. Sensitivity: 88dB. Impedance: 8 Ohms. Mounting Depth: 2.6. Cut-out Diameter: 6.5. Color: White (paintable).
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PolarLander 12V Bluetooth Car Stereo,4x45W Car Audio FM Radio, MP3 Player USB/SD/AUX Hands Free Calling with Wireless Remote Control

  • 【Built-in Bluetooth】Bluetooth and microphone allow you to answer callings, listen to music and media sounds from devices with Bluetooth function. Once you pair your device, it will automatically be paired next time you get into your car..
  • 【FM radio reception】FM radio with high-quality digital stereo, which can search channels in full-automatic way, semiautomatic way and accurate adjustment way. Support the three-band radio store(FM1-FM2-FM3), which can store 1~6 radio channels. ( FM Frequency: 87.5-108MHz).
  • 【USB(U Disk) /SD Card/MMC】Support USB/SD/MMC vast storage equipment, and you can download the songs you like into the storage equipment to play, which is very convenient.Do not support charging.
  • 【AUX Audio Input Function】Support external Plug AUX Audio Input, such as GPS navigation, MP3, MP5, Mobile phone audio and so on. Input through the front-terminal AUX audio, and output sound from the car's speaker..
  • 【Multiple EQ selection】Support the adjusting of multiple sound effect models and independent output (for example: Treble, Bass, Balance, Fader), Support name indication of ID3 English songs. Support folder play function. Sound effect models: classic, jazz, pop, rock..
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Pyle 8-Channel Bluetooth Studio Audio Mixer - DJ Sound Controller Interface w/ USB Drive for PC Recording Input XLR Microphone Jack 48V Power RCA Input/Output for Professional&Beginners - PMXU88BT

  • fdescripRECORD AND CONNECT TO PC: This personal mixer has a USB soundcard and audio interface to record and connect to MAC or PC and it has universal digital audio file compatibility. Can be used by beginners or studio professional applications.
  • BLUETOOTH: This portable 8-channel DJ sound controller has Bluetooth for wireless streaming and use it as an input to mix signal with other input channels. It works with iPhone, Android, iPad, Tablet and MP3 Player. The wireless range is 15 ft.
  • 8-CHANNEL MIXER: The device caters multiple device connectivity because it has 8 channels. It has 2 1/4’’ (L/R) outputs, 4 XLR microphone inputs, 2 pairs RCA (L/R) inputs, 2 pairs 1/4’’ mono + stereo,1/4’’ Send + Return and 1/4’’ headphone jack.
  • LED INDICATOR LIGHTS: The recording mixer has LED indicator lights and rotary adjustment knobs for user convenience. It has input selection, master volume controls, independent channel balance and high, plus, low frequency adjustment.
  • +48V PHANTOM POWER: For reliable power source, this DJ mixer comes with a +48V Phantom power supply. Includes a 3=pin power adapter cable and the stereo output level meter is 12-Segment (-30, -20, -10, -7, -4, -2, 0, +2, +4, +7, +10, CLIP).
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Boytone BT-80MX, 8 - Channel Bluetooth Audio Mixer - DJ Sound Controller, USB MP3 Player, 4 XLR Microphone Jack, 7 Band EQ, 16 BIT Digital Multi FX Processor, RCA IN-OUT Jack, 48V Phantom Power

  • ...ce connectivity because it has 8 channels. It has 2 1/4’’ (L/R) outputs, 4 XLR microphone inputs, 2 pairs RCA (L/R) inputs, 2 pairs 1/4’’ mono + stereo, 1/4’’ Send + Return and 1/4’’ headphone jack.
  • The recording mixer has LED indicator lights and 47 rotary adjustment knobs for user convenience. It has input selection, 2 master volume controls, independent channel balance and high, plus, low frequency adjustment.
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