ReviewsBandpass Boxes

QSC KS112 Active 12" Subwoofer

An ultra-compact active subwoofer with a refined, professional appearance for installation and highly portable entertainment applications.
Designed to be a highly portable, single 12-inch bandpass design subwoofer, powered by a 2000 Watt peak power Class D amplifier module.
The cabinet is constructed of premium birch for long life and lasting durability and includes high-quality, low noise casters.
Two M20 threaded pole receptacles allow a positive, wobble-free connection to a threaded speaker pole--vertical or horizontally (pole not included).
Features Intrinsic Correction tuning and loudspeaker management.

Adjustable sensitivity and loudness control Bandpass Filter suppresses 60Hz and high frequency noise.
Identifies Fox 2’s tracer tone up to 12 inches away Headlights illuminate dark areas and reduce fluorescent light noise.
Built-in signal strength indicator Earphone jack for use in quiet or noisy environments.
Easy access battery door Rugged, moisture resistant. Mylar cone speaker.

6 Input Channels, 8 Outputs - Input and Output RTA for Precise and Informed Tuning.
All controls and adjustments accessible on your laptop (PC or Mac) via USB connection (AudioControl's Smart-User DSP software included).
Variable high-pass, low-pass, and bandpass filters (20-20,000 Hz at 12 or 24 dB/octave).
GTO signal-sensing turn-on - MILC (Maximum Input Level Control) LED optimization and clip indicators.
AccuBASS, Signal Summing, Signal Delay, 12 and 24 dB/Octave Crossovers, 30 Band Equalizer.

【Frequency Range 】Tiny Spectrum Analyzer with two inputs, high quality MF/HF/VHF input for 0.1MHZ-350MHz, lesser quality UHF input for 240MHz-960MHz. Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz. Color display showing 290 scan points covering up to the full low or high frequency rangefrequency range. The tinySA contains all the components of a conventional heterodyne swept spectrum analyzer..
【Built-in Calibration Signal Generator】When not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz. Built-in calibration signal generator that is used for automatic self test and low input calibration..
【Tiny Spectrum analyzers】Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz.Color display showing 290 scan points covering up to the full low or high frequency range. Bulit-in rechargeable battery allowing a minimum of at least 2 hours portable use..
【PC Control】Connected to a PC via USB it becomes a PC controlled Spectrum Analyzer.The USB interface implements the Serial over USB (CDC) protocol and there is a large set of commands that can be invoked over the serial interface. These co....

12" Dual 2-Ohm Voice Coil IDMAX Series Subwoofer.
1000 Watts RMS /1800 Watts Max RMS Power Handling.
Mounting Depth 8.15" / Cutout Diameter 11.02".
85.20 dB Sensitivity / 27.77Hz Resonant Frequency.
Works well in a sealed enclosure with a volume as low as .65 cu ft., but can also be used in ported and single reflex bandpass enclosures. Full specifications provided with subwoofer, and manufacturer's assistance is available by phone to help with enclosure design.

Near-IR bandpass filter | BP Series | StablEDGE design.
Bandwidth FWHM: 160nm | Useful Imaging Range: 820-910nm.
Designed for use with near-IR LED lighting (840nm & 850nm) and outdoor applications.

65 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms) | 200 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode).
Front channels: Variable high- or low pass filter (10-5,000 Hz, 24 dB/octave).
Rear channels: Variable high-pass filter (10-500 Hz, 24 dB/octave) | Variable low-pass filter (50-5,000 Hz, 24 dB/octave) | Bandpass filter engages both.
Variable bass boost (0-18 dB at 45 Hz) on front and rear channels.
Dimensions: 10-15/16″W x 2-1/4″H x 8-1/4″D.

12" Dual 2-Ohm Voice Coil IDMAX Series Subwoofer.
1000 Watts RMS /1800 Watts Max RMS Power Handling.
Mounting Depth 8.15" / Cutout Diameter 11.02".
85.20 dB Sensitivity / 27.77Hz Resonant Frequency.
Works well in a sealed enclosure with a volume as low as .65 cu ft., but can also be used in ported and single reflex bandpass enclosures. Full specifications provided with subwoofer, and manufacturer's assistance is available by phone to help with enclosure design.

【STABLE AND RELIABLE】With high reliability, stable and reliable working performance.
【FREQUENCY BAND】A band-pass filter is a device that allows a particular frequency band to block other frequencies simultaneously..
【BRAND AND NEW】This bandpass filter is 100% brand new and high quality.
【LOW INSERTION LOSS】The filter has the characteristics of low insertion loss, high resistance band rejection and high image attenuation, high power tolerance, low cost and miniaturization..
【CONVENIENT TO DEBUGGING】Convenient debugging, good selectivity and stability.

【Frequency Range 】Tiny Spectrum Analyzer with two inputs, high quality MF/HF/VHF input for 0.1MHZ-350MHz, lesser quality UHF input for 240MHz-960MHz. Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz. Color display showing 290 scan points covering up to the full low or high frequency rangefrequency range. The tinySA contains all the components of a conventional heterodyne swept spectrum analyzer..
【Built-in Calibration Signal Generator】When not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz. Built-in calibration signal generator that is used for automatic self test and low input calibration..
【Tiny Spectrum analyzers & ESD Function】Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz.Color display showing 290 scan points covering up to the full low or high frequency range. Bulit-in rechargeable battery allowing a minimum of at least 2 hours portable use.The performance of the 2021 latest version 3.1 will be more stable and sensitive, with a new ESD protrcted function enable the product to have a higher antistatic level and a longer service life..