Top Optical Lowpass Filter

Erica Synths Black Polivoks VCF v2 Multi-Mode Eurorack Filter Module

PreSonus Eris Sub 8 Compact Studio Subwoofer

• 8-inch, front-firing, paper-composite transducer with high-elasticity rubber surround delivers smooth low-frequency transients..
• 100W Class AB amplifier (50W RMS) gives robust output with minimal distortion..
• Now comes included with Studio One Prime and Studio Magic plug-in suite, over $1000 USD worth of music production software..
• Input gain control gives -30 dB to +6 dB of continuously variable output..
• Continuously variable lowpass filter keeps resonances in the 50 Hz to 130 Hz range..

Behringer 914 FIXED FILTER BANK Legendary Analog Fixed Filter Bank Module for Eurorack

• Vintage-sounding 914 fixed filter bank module from the '70s.
• Authentic reproduction of the discrete I/O circuitry from the "Modular 55" Series.
• Artist roster includes world's most famous pop, rock and jazz musicians.
• 12 active bandpass filters ranging from 125 Hz - 5.6 kHz.

Rockford Fosgate Punch P1000x1BD 1000 Watt Class-bd Mono Amplifier

• 300 Watts x 1 @ 4-Ohm / 500 Watts x 1 @ 2-Ohm / 1000 Watts x 1 @ 1-Ohm. Short circuit protection.
• Works with factory installed & aftermarket source units.
• Onboard 12dB/octave LowPass crossover & Infrasonic filter.
• On-board Punch EQ with +18dB boost at 45Hz.
• Cast Aluminum Heatsink with Stealth top mounted control panel.

ICE 77mm Extreme ND 3 Filter Set ND100000 ND1000 & ND64 Neutral Density 6 10 16.5 Stop Optical Glass

• Filter #1 ND100000 16.5 Stop exposure correction. Optical Glass..
• Filter #2 ND1000 10 Stop exposure correction. Optical Glass..
• Filter #3 ND64 6 Stop exposure correction. Optical Glass..
• Double threaded metal Superfine matte black Slim (3.6mm deep, not inc rear threads) frame for additional filters or Hood..

SolarLite Solar Filter for Telescope, fits Celestron and Meade 8' Schmidt Cassegrain

• 236mm9.312" SolarLite Filter for 203mm8.00" instruments. This filter should fit the following models: Celestron and Meade 8" Schmidt Cassegrain and instruments of similar outer diameter. (Will not fit the Meade Light Switch 8" S/C due to the OTA arm). Part number S9187..
• Please read carefully: 236mm9.312" is the diameter of the filter. The filter fits like a cap by friction. To be absolutely sure that the filter will fit, please measure the outer diameter of your instrument and make sure that it is not larger..
• SolarLite filters have the optical quality of the glass with the advantages of impregnated polymer (Thousand Oaks Optical Black Polymer). The sun will appear in a natural yellow-orange color when viewed through your telescope using this filter..
• This is a high quality product of Thousand Oaks Optical (Arizona), a manufacturer of safe solar filters for over 30 years. Words of the producer: "Stronger than any other solar film on the market. Safe for 15 years.".
• WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS/CAMERA. IN CASE NECESSARY, USE STICKY TAPE TO SECURE IT. NEVER OBSERVE SUN WITHOUT A PROPERLY ATTACHED FILTER..

Vivitar 3 Pc Filter Kit 52MM Uv/cpl/fdl

• Multi-coated optical glass for enhanced optical resolution..
• FILTER UV: Protects your camera's lens from scratches, dust, dirt, moisture, and fingerprints, while reducing unwanted ulra-violet light..
• FILTER FD: The F-DL fluorescent light correction filter gives true-to-life color rendition by removing the harsh yellow-green cast.
• FILTER PL: Polarizers let you achieve vibrant color saturation..
• When shooting under natural light, a fluorescent filter dramatically increases color saturation of subjects..

SVBONY SV132 Telescope Filter H-Beta Filter 25nm 1.25 inches Eyepiece Filter for Horsehead Nebula California and Cocoon Nebulae in Dark Skies

• SV132 H-Beta eyepiece filter makes it possible to view the elusive Horsehead, California, and Cocoon Nebulas in dark skies.
• Great used with a moderate to large aperture telescope and clear dark skies.
• Optical high precision double side polishing.
• Filter substrate is fine-optically polished to 1/4 wave and.
• Precision double-sided optical coatings improve transmission and cut-off depth.
• Executes with a transmission of over 90% and completely rejects light pollution.
• High value transmission of pass-band and optical density of off-band is assured through planetary rotation system, a homogenous and precise coating procedure.
• The high optical quality of SV132 filters guarantees no loss in sharpness or contrast.
• Filter with metal mount 1.25" filter threads.
• Threaded to fit 1.25" eyepieces and threaded diagonal barrels.

SolarLite Filter for Telescope, fits ETX90, C-90, Questar 3.5, Wm. Optics ZS80II ED, Orion OBS. 70 & Astroview 90, Orion Explorer 90

• 108mm .25" SolarLite Filter for 90mm .50" instruments. This filter should fit the following models: C-90, ETX 90, Questar 3.5, Wm. Optics ZS80II ED, Orion Obs. 70 & Astroview 90, Exployer 90 and instruments of similar outer diameter. Part # S4250..
• Please read carefully: 108mm .25" is the diameter of the filter. The filter fits like a cap by friction. To be absolutely sure that the filter will fit, please measure the outer diameter of your instrument and make sure that it is not larger..
• SolarLite filters have the optical quality of the glass with the advantages of impregnated polymer (Thousand Oaks Optical Black Polymer). The sun will appear in a natural yellow-orange color when viewed through your telescope using this filter..
• This is a high quality product of Thousand Oaks Optical (Arizona), a manufacturer of safe solar filters for over 30 years. Words of the producer: "stronger than any other solar film on the market. Guaranteed 15 years.".
• WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS/CAMERA. IN CASE NECESSARY, USE STICKY TAPE TO SECURE IT. NEVER OBSERVE SUN WITHOUT A PROPERLY ATTACHED FILTER!.

K&F Concept 43mm UV/CPL/ND Lens Filter Kit 3 Pieces -18 Multi-Layer Coatings UV Filter + Polarizer Filter + Neutral Density Filter ND4 + Cleaning Cloth+ Filter Pouch for Camera Lens K-Series

• 【Kit Includes】The K&F Concept optical glass professional photography lens filter kit including UV filter + CPL polarizer filter + netural density filter (ND4) + filter pouch + microfiber cleaning cloth.
• 【Import Optical Glass】All filters made by Import Japanese optical glass with 18 layers of nanometer coatings, high anti-reflectivity to ensure image real color and quality, and CNC frame design increasing friction can easily install and remove the filter..
• 【Cleaning Cloth & Filter Pouch】Microfiber cleaning cloth with no static electricity, great for cleaning dusty in lens and cameras, the filter pouch can hold 3 filters, easy for carrying..
• 【Filter Fuction】UV filter for lens protection and prevent the UV ray effect for the image quality. A circular polarizing filter for color and contrast enhancement, remove the glare from non-metallic surfaces, such as water and glass. ND4 filter provides 2-stop light reduction, recommended for cloudy day use..
• 【NOTE】This K&F Concept filters kit is compatible with all 43mm lenses. Please verify your camera's lens thread size before ordering. This number is always beside a "Ø" (diameter) symbol..

K&F Concept 100x150mm Square Soft GND8 3 Stop Soft Graduated Neutral Density Filter with 28 Multi-Layer Coatings Waterproof/Scratch Resistant/Anti-Glaring

• Sofit graduated ND8(3 stop) filter made by Japanese optical AGC galss,increased optical clarity and color fidelity..
• K&F Concept soft GND8 filter neutral density adopts exclusive research and development gradual coating, the light from ultra violet to near-infrared light can pass through evenly..
• 28 Multi-layer nanometer coatings technology, waterproof, scratch-resistant, anti-reflective green coating, effectively prevent from oil, fingerprint, scratch, protect valued lens..
• Double sides optical grinding and polishing to make sure the optical high parallelism and smooth to ensure the high sharpness of image..
• Reduce exposure in Selective Area (the light is big different between the ground and sky),It could fit to Lee Filter Holder and Cokin's Z Series Filter holder..

Monoprice 602520 Microphone Stand with Boom

• This is an 8" powered subwoofer capable of producing 60 watts (RMS) output. The subwoofer has a frequency response range of 50 to 250 Hz with a lowpass crossover filter, which can be adjusted from 50 to 150 Hz. Gain and frequency knobs on the control panel allow you to adjust the crossover filter and the power output for the optimum blend and balance of bass output with your stereo or surround speakers..
• The subwoofer has multiple input options, which allow it to be used with any existing stereo or 5.1 (or greater) amplifier system. For each input there is a corresponding output..
• High-level inputs accept a full-range signal from the amplifier's stereo speaker outputs. When connecting the unit as part of a 5.1 system, these would be taken off the Front Left and Front Right outputs in parallel to the standard pair of front speakers. The subwoofer provides its own power and includes impedance matching circuitry, so this will not reduce the power output to the front speakers or affect the overall impedance load on the amplifier..
• Additionally, the subwoofer has a set of right/left Line Level inputs. If using a standard stereo system, without a special subwoofer output, you can connect these to the left and right line level outputs on the amp. The subwoofer....