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Best Variable Frequency

Planet Audio EC20B 3-Way Electronic Crossover with Remote Subwoofer Control

  • Provides three Filter circuits for a variety of set-up options.
  • Variable Low Pass: 32Hz to 250Hz, Variable High Pass: 40Hz to 400Hz.Bass Generator : Frequency response 10 Hz to 20 kHz, ±1 dB.
  • Frequency Multiplier: x1 or x20, Selectable Slope: 6dB or 18dB / octave.
  • Independent Front and Rear Level Controls, S / N: ≥ 85dB.
  • DC-to-DC Power Supply, Outputs for 3-Way or Front, Rear and.
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BOSS Audio Systems BX55 2 3 Way Pre-Amp Car Electronic Crossover with Remote Subwoofer Control

  • Front / Rear / Sub Input, Front / Rear / Sub Outputs, Remote Subwoofer Control.
  • Front High Pass Filter 65Hz to 4.5 kHz, Rear High Pass Filter 65Hz to 4.5 kHz.
  • Variable Subwoofer Filter 40 Hz – 4200 Hz, Variable High Pass Filter 65 Hz – 4.5 kHz.
  • Crossover Slope 12 dB / Octave, Variable Subwoofer Phase 0 – 180 Degrees.
  • Variable Bass Boost 0 – 18 dB, Variable Bass Boost Frequency 25 Hz – 250 Hz.
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Precision Power E.7 1/2 DIN 7-Band Parametric Equalizer with LED Display

  • QUALITY - This Class D Monoblock Amplifier exhibits quality frequency response rates and crossover network which places this amp at a prominent place. Durable design and highly efficient performance makes this mono sub amp stand out amongst the others..
  • 1 Ohm Stable - This SPL Audio Subwoofer Amplifier is able to power loads of 1 Ohm on a continuous basis without facing any difficulties like overheating, making extra sounds. This Class D amplifier is designed to power subwoofers that have a constant demand of high power in order to operate effectively..
  • Features – The monoblock bass boost amplifier has features like - Frequency Response: 15~150HZ, Bass Boost, SNR: >105DB, Remote Bass Knob, 2-way protection, Input Sensitivity: 200mV to 6V and THD:.
  • Power – This Class D 3000 Watt Amplifier has a power rating distribution as followed 1500 X 1 @ 1 OHM, 1000 X 1 @ 2 OHMS, 700 X 1 @ 4 OHMS. The monoblock amplifier for car speakers also provides a 2-way protection circuitry as a part of its design..
  • Crossovers- The SPL Monoblock Car Amplifier offers you the ease of connectivity by providing the feature of crossover. The monoblock car amplifier provides you with options of variable 50-400hz 12db low pass crossover, variable 17-50hz 12db subsonic crossover, ....
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ATO 1 hp VFD, 4A 0.75kW 120V Input 220V Output, Single Phase to 1phase/3phase Variable Frequency Drive, for AC Motor Speed Control

  • ATO 1 hp 110v VFD, 0.75 kW single phase 110v/120v input, single phase or three phase 220v output variable frequency drive. Running your 1 phase/3 phase motors on 120 volt supply via ATO VFD.
  • Input voltage: 1 phase 120V AC ±15%, Input frequency: 50Hz/60Hz, Output voltage: 1 phase or 3 phase 220V AC ±15%, Output frequency: 0.00~400.00Hz.
  • 【APPLICATION】: ATO 110V Variable frequency drive can be widely applied to drive the AC motor, such as fans, pumps, power tools, etc..
  • 【TIPS】: Choose a VFD base on motor rated current: VFD output current ≥ motor rated current.
  • 【CUSTOMER FIRST】If you are not sure about the size or have any issue about the product or service, please don't hesitate to email us. We will answer you within 12h.
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BOSS Audio Systems BX35 Electronic Car Crossover - 3 Way Pre-Amp Fine Tune Your High-Mid-Low Range Speaker Frequencies

  • Front / Rear / Sub Input, Front / Rear / Sub Outputs.
  • Front High Pass Filter 65 Hz to 4.5 kHz, Rear High Pass Filter 45 Hz to 1.6 kHz.
  • Variable Subwoofer Filter 40 Hz – 250 Hz, Variable High Pass Filter 45 Hz – 5 kHz.
  • Crossover Slope 12 dB / Octave, Variable Subwoofer Phase 0 – 180 Degrees.
  • Variable Bass Boost 0 – 18 dB, Variable Bass Boost Frequency 25 Hz – 250 Hz.
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BLAUPUNKT AMP4000D 4000W Max 1-CH Monoblock Class D Stereo Car Audio Amplifier

  • Variable Bass Boost - Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
  • Variable Subsonic Filter - To prevent your subwoofer(s) from bottoming out, the variable subsonic filter filters out frequencies below the subwoofer(s) specified low frequency limits and allows the driver to reach a maximum safe excursion.
  • Variable Low-Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications for the bass frequency reproduction.
  • Specs - Dimensions: 15” x 10” x 2.4”, Weight: 11.2 lbs..
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Planet Audio BBD2500 Class D Car Amplifier – 2500 Watts, 1 Ohm Stable, Digital, Monoblock, MOSFET Power Supply

  • Power: 2500 watts max X 1 @1-ohm, 1250 watts max X 1 @2-ohms, 625 watts max X 1 @4-Ohms.
  • Class D: power loss is significantly reduced making the amplifier highly efficient. Excess energy is stored until it’s needed instead of being converted into heat. Reduction in size/weight, reduced power waste, smaller heat sink, compact circuitry.
  • 1 ohm stable: able to continuously power loads of 1 ohm without encountering difficulties such as overheating. Typically made to power up subwoofers that demand the heavier power load requirements to be able to perform the way they were made to.
  • Variable subsonic filter: to prevent your subwoofer(s) from bottoming out, the variable subsonic filter filters out frequencies below the subwoofer(s) specified low frequency limits and allows the driver to reach a maximum safe excursion.
  • Variable low-pass crossover: subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications for the bass frequency reproduction.
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American Bass PH1600 Subwoofer Amplifier

  • Specifications: 1-Ohm stable. Mono - block hybrid amplifier. Max power @ 1 ohm: 4800 watts. RMS power @ 1 ohm: 2200 watts. Low levelInput & output. Frequency response: 20hz ~ 250hz.
  • Input level: 0.2v ~ 6v. Variable subsonic filter: 10hz ~ 50hz. Variable low pass filter: 35hz ~ 250hz. Varaible bass boost: 0 ~ 9db at 45hz. Variable phase shift: 0 ~ 180 degrees.
  • Remote gain controller. Two amplifiers linkable connector & selector. Fuse ratting: 120a. Linked fuse: 240a. Dimensions: 13.26 length x 6.5 width x 2.25 height.
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American Bass PH-2500.1-MD-V2 Class D Digital Power Car Amplifier

  • 1 ohm stable D class mono-block amplifier, 2500 Watts RMS.
  • Variable subsonic filter: 10Hz to 50Hz at 24dB per octave.
  • Variable low pass filter: 35Hz to 250Hz at 24dB per octave.
  • Two amplifiers linkable connector and selector.
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Radio Hellas

  • 10 and 12 meter bands. 16 programmable/erasable frequencies. Programmable repeater split..
  • Large frequency display with dimmer. New backlit display. Dual panel meters..
  • Improved receiver design for increased sensitivity and image rejections. Receiver clarifier ( plus/minus 0.5kHz)..
  • Variable output power control. Noise blanker/ANL circuitry. Frequency selector lockout..
  • Double FET balanced mixer for improved receiver intermodulation rejection. Active frequency scanner. Continuous duty built-in AC power supply..
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Galaxy DX-959B Mobile CB Radio with Blue Frequency and Channel Digits and Backlit StarLite Faceplate

  • Five-digit frequency counter with large blue digits, two-digit channel display with larger blue digits. Large Galaxy meter with 4 scales: "S" Meter indicates up to 60 dB over S9. Modulation Percentage Scale for use on AM. Power Scale Calibrated for AM and SSB. SWR Scale.
  • The Galaxy StarLite faceplate features back lighting of the white faceplate lettering in blue or red color back lighting. All faceplate lettering is white during daylight. The picture shows how the color back lighting turns the lettering blue or red. Frequency and Channel LED digits are always blue - day or night.
  • Large, easy-to-read meter with scales for power output, modulation, SWR and incoming signal.
  • Variable power output control, variable talkback circuit with on/off switch, automatic SWR circuit and an SWR alert LED, Roger Beep with on/off switch.
  • Variable dimmer control with push switch to turn off the meter lamp, display digits and Star Lite back lighting, 3-position tone switch for receive, proprietary Galaxy Noise Filter (GNF) Circuit reduces noise to aid in the recovery of weak SSB signals.
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Another Galaxy (feat. AO, Darb$ & Sir Random)

  • 10 and 12 meter bands. 16 programmable/erasable frequencies. Programmable repeater split..
  • Large frequency display with dimmer. New backlit display. Dual panel meters..
  • Improved receiver design for increased sensitivity and image rejections. Receiver clarifier ( plus/minus 0.5kHz)..
  • Variable output power control. Noise blanker/ANL circuitry. Frequency selector lockout..
  • Double FET balanced mixer for improved receiver intermodulation rejection. Active frequency scanner. Continuous duty built-in AC power supply..
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BOSS Audio Systems Elite BE1200.1D Class D Car Amplifier - 1200 Watts, 1 Ohm Stable, Digital, Monoblock, Mosfet Power Supply, Great for Subwoofers

  • Variable Bass Boost - Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
  • Variable Subsonic Filter - To prevent your subwoofer(s) from bottoming out, the variable subsonic filter filters out frequencies below the subwoofer(s) specified low frequency limits and allows the driver to reach a maximum safe excursion.
  • Variable Low Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications for the bass frequency reproduction.
  • Specs - Dimensions: 7.8 x 4.6 x 1.7, Weight: 2.9 lbs..
  • Warranty - BOSS Audio Systems provides a powerful 6 year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.Com. We strongly encourage professional installation of this product to ensure proper and safe functionality.
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