ReviewsPassive Filter

ART DualZDirect Dual Professional Passive Direct Box

  • Fully passive, high performance transformer design. No battery required..
  • Converts 50k ohm inputs into 600 ohm balanced outputs.
  • Switchable input attenuation (0, -20, -40 dB) Switchable low pass filter.
  • Switchable ground lift (fully isolates inputs from chassis and outputs).
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Jonnie W.: Not My Cup of Tea

  • Adjustable gain for both passive and active pickups.
  • 5 band EQ with tunable low-mid and high-mid bands.
  • Garret Null notch filter for effective feedback control.
  • Full chromatic tuner with footswitch mute/tune function.
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Earthquake Sound Supernova Luminous LU-15 15-Inch Powered Subwoofer with Slaps V2 Passive Radiator, Piano Black

  • MAGMA-X Active Driver: 15-inch high excursion active driver with massive moving structure and double spider to produce deep, dynamic, and hard-hitting bass.
  • SLAPS V2 Passive Radiator: The gold standard in passive radiator design, SLAPS helps the subwoofer effortlessly produce more bass at sub-harmonic levels while reducing the load on the amplifier - Reach dominating LFE without port noise..
  • LM1000 Amplifier: Built-in high efficiency class "D" amplifier, 600 WRMS and 1200 PEAK, 17-120Hz frequency response, 24dB/Oct variable low pass filter from 50-150Hz, 0-180 degree phase shift switch, gain control knob, 12V trigger sensing, power switch and LED indicator.
  • Inputs and Outputs: RCA low level input and output, balanced XLR input, and built-in input selector switch.
  • In the Box: Piano Black 15-inch Supernova Luminous powered subwoofer, detachable grilles, power cable, IR remote, remote eye, and product manual.
  • Included components: LU-15 PIANO Subwoofer, Grilles (2), Remote, Remote Eye, Product Manual, Warranty Card.
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iSpring RCC100P High Capacity 5-Stage Under Sink Water Filter Reverse Osmosis RO Drinking Water Filtration System, 100 GPD, Performance-boosted

  • [IMMEDIATE ACCESS TO CLEAN WATER] Thanks to the storage tank, this Reverse Osmosis system uses pressurized tanks to store clean water. It can deliver clean water without any extra waiting time. Efficient to meet your whole family needs..
  • [HIGH EFFICIENCY BOOSTER PUMP]: No worries for low water pressure. Unlike passive boosters, the water filter for sink RCC100P’s durable electric booster pump ensures reliable, consistent performance regardless of pressure variations. And it’s quiet. Operating only when needed, it generates less noise than a dishwasher or refrigerator ice maker..
  • [EFFICIENT FILTER ELEMENT]: Transparent 1st stage housing for easy visual inspection. Three extra long life pre-filters to remove large contaminants and protect RO membrane. RO filter to remove contaminants down to 0. 0001 microns.
  • fine GAC filter to provide final polishing to the purified water. With the beautiful European-Style reverse osmosis kitchen faucet, this under sink water filter helps you experience clean, safe, good-tasting water every time you turn on the faucet..
  • [100% SATISFIED CUSTOMERS]: RCC100P from America’s favorite brand of under sink RO water system is backed by iSpring extended manufacturer upon registration and lifetime personalized support fr....
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CERWIN Vega 12 Shallow Spare Tire Powered Active Subwoofer

  • 250 Watts [email protected]@100Hz, 600 Max * Bass Boost: 0-12dB.
  • LPF Filter: 30-150Hz * REMOTE BASS KNOB INCLUDED *-Phase Switch: 0° or 180° * Remote Subwoofer Control Included.
  • PWM MOSFET Power Supply / Thermal Protection Circuit * Passive Radiator Design * Adjustable Input Sensitivity *Dimension: 13.6" x 11.1" x 3.15 "H.
  • RCA and High Level Inputs * Slim 12" 4 ohms Subwoofer.
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Pro-Ject Audiophile Home Audio/Video Product Silver (Box - Tube Box S2 Silver)

  • Precise RIAA equalization in two parts, passive/active.
  • Fully discreet circuit design without OpAmps.
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Oogie Boogie Face Mask Adjustable Face Bandanas Balaclava Reusable Adult Washable Fabric Scarf with 2 Filter, Gift for Women Men

  • ☀product Size: 5.9in X 7.9in (15 X 20 Cm). With M-Shaped Nose Clip, Suitable For Men, Women And Big Kids..
  • ☀product Material: 95% Polyester + 5% Spandex. Each Mask Is Equipped With 2pc Activated Carbon Filter..
  • ☀suitable For The Crowd: Especially Suitable For People Who Go Out, Office Workers, Students, Sportsmen, Out For Walks, Cycling, Cosplay Parties, Etc..
  • ☀product Features: Washable And Reusable. With Replaceable Filter. Prevent Dust, Cold, Exhaust Emissions, Passive Smoking, Etc..
  • ☀product Washing: It Is Recommended To Wash By Hand, Do Not Use Bleach, And Air Dry Naturally..
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On Air

  • STURDY DESIGN: Underseat vented subwoofer features a die-cast enclosure, 2 passive radiators, and a Class D amplifier.
  • OEM INTEGRATION: Underseat car subwoofer includes high and low-level inputs with hi-level sensing for OEM integration.
  • AMPLIFIER INCLUDED: 150-watt RMS amplifier provides a strong bass, adding thump and intensity to any speaker system.
  • REMOTE CONTROL: Bass knob remote control included to easily adjust the subwoofer's settings.
  • SPECIFICATIONS: Features a blue LED illuminated Tarantula logo.
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OSD Audio 1000W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500

  • The SMP500 is designed for use with higher wattage passive subwoofers that require external power with up to 1000 watts power peak / 400 watts RMS with 4 ohms. It has highly efficient Class D technology to run cool under demanding loads..
  • SOUND QUALITY: Get a deep, crisp, clean low-frequency sound effect in dedicated home theater systems and media rooms to improve the overall sound quality of surround sound systems with dual 100/220 voltage..
  • BASS: This amplifier improves bass response of passive subs with a variable high-cut filter and a front panel control knob that routes higher frequencies to main speakers for low frequency sound effects..
  • CONTROL FEATURES: The SMP500 includes front-mounted power and back panel adjustable gain. A volume control limiter protects the woofers while low and high level pass-through inputs/outputs for greater flexibility..
  • DESIGN: Rack mountable, the SMP500 supplies in-wall or stand-alone subwoofers with the power they need. CE & ETL rated with an auto sensing feature that automatically turns the amp on or off when a signal is detected. A remote control is included..
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Nobsound G2 PRO Hi-Fi 300W Subwoofer Power Amplifier Mono Channel Class D SUB Audio Amp

  • With PBTL/SUB switch: convenient to use G2 PRO as full frequency amp or subwoofer amp, a SUB output is specially designed for active subwoofer. G2 PRO can connect to both passive and active subwoofers. And two G2 PRO can be used to drive left and right channel independently to avoid mutual interference..
  • Max 300W output power: using TPA3255D2 amp chip and equipped with 32V/5A large power supply, enough to drive 320W passive speakers or subwoofers. It also has a good match with outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers..
  • Best design and HiFi sound: with a gain switch to allow 2-level of output level setting (32/36 dB) and SUB frequency adjustment (40-300Hz). It also has built-in speaker protection circuit, low-pass filter to guarantee no audible noise even at high power output, SUB signal and amp can output at the same time to bring HiFi listening experience..
  • Mini size with exquisite appearance: mono integrated class D amplifier, simple compact design but with powerful function, more fashionable and durable solid aluminum chassis, very suitable for HiFi home and desktop audio system use..
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Kichlep Blue and Green Metallic Mermaid Scale Face Mask Scarf, Washable Mouth Cover Adjustable with Filters, for Adult Women & Men

  • Size:7.8Inch x 5.9Inch with Adjustable Earloops Masks can not only bring your comfort, protect u from dust, Equipped with two replaceable 5layer activated carbon filters, Mshaped nose clip for a comfortable fit,Allows for easy breathability elastic closure..
  • Material: Face Mask Mouth Mask Face Cover with 2 Filter Made of 100 percent Polyester, super soft and breathable, will not rub your face. Can be cleaned many times, recycled, health and environmental protection.This mouth mask Washable Reusable Masks,Suitable for both, men,woman to go outside,cycling,shopping and so on..
  • Perfect Gift: The Fashion And Unique Design Face Mask Is Also An Ideal Gift Choice For Your Family Member Or Your Good Friends. It Is A Great Gift For Thanksgiving, Christmas, New Year Or Birthday..
  • Applicable Place:Perfect For Running, Camping, Hiking, Shopping, Travel, Morning Exercise, Cycling, Cleaning, Painting, Show Performance, Party and daily use. Protects you from fog, haze, vehicle exhaust, passive smoking, etc..
  • Health Protection:Protect Your Mouth And Nose From Dust, Cold, Dust, Pollen, Allergies, Smoke, Exhaust Emissions, Passive Smoking, Etc..
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