Reviews Variable Filter

Tide Optics 55mm Variable ND Filter ND2 - ND400 Circular Neutral Density Lens Filter

TAKE BETTER PHOTOS & VIDEO ➊ Maintain slow shutter speed in harsh sunlight with this variable ND. Control light entering the lens and achieve....
DURABLE & PROFESSIONAL VARIABLE ND FILTER ➋ 18-layer nano-coated Japanese glass encased in a robust Aluminium Alloy Frame. Anti-reflection....
TRAVEL FRIENDLY CASE INCLUDED ➌ Sleek & minimal design to make for an easy travel companion. Laser-etched markings on the neutral density filter....
BUY WITH CONFIDENCE ➍ This ND filter comes with a 2 year warranty so you can purchase with full peace of mind. All Tide Optics products are inspired....
KNOW YOUR LENS SIZE ‘ø’ ➎ Prevent buying the wrong size filter and verify your lens thread size before purchase. Your lens thread size is....

...nd Kit can build a 11’ x 16’ 1,900-gallon water garden or fish pond at a 1.5’ depth. Finished pond length, width, and depth can be tailored to your specific requirements..
The Simply Ponds 3000 Water garden Kit includes: 16” Waterfall Filter, Amazing Ponds Skimmer 4000 with 5" Door, Commando Series 3,000 GPH Variable Speed Pump, 15' x 20' 45-Mil EPDM LifeGuard Pond Liner, 15' x 20' UnderGuard Underlayment Nonwoven Geotextile, 1-Watt Mini Bronze Spot Light, 1.5" x 25' Kink Free Tubing, Waterfall Foam to seal gaps between rocks - 12 oz can, Pond Starter to start biological filtration..
LifeGuard Pond Liner is durable. Underlayment protects from punctures underneath the pond liner. Commando 3,000 GPH Variable Speed pump has an energy efficient variable speed motor. Skimmer has filter mats and a leaf basket to clean floating debris. Waterfall has a filter mat and BioBalls for biological filtration and a 16” planting tray. Pond lighting uses efficient LED technology. Use waterfall foam to seal gaps in rocks in the stream and waterfall. Pond Starter to start biological filtration..
Warranties: EPDM LifeGuard Pond Liner - Limited Lifetime.
16” Waterfall Filter and Skimmer - 5 year.

Built-in Amplifier - With a MOSFET power supply you get improved switching speeds, better performance with less power from the driver, lower gate-to-drain feedback capacitance, lower thermal impedance for higher switching frequencies.
Variable Low-Pass Filter - A low-pass filter is an electronic circuit that removes all the notes above the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s).
High Level Inputs - Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the LOPRO10 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs.
Low-Level Inputs - Line level inputs (RCA inputs / low-level inputs) use RCA interconnect cables to link the LOPRO10 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers.
Variable Bass Boost - Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
Specs – 15.5” x 11” x 3”. If you are short on space, this is a great solution for you. The combination of amplifier and subwoofer all into one, makes this ideal for spatially challenged vehicles. Weight: 13 lbs..

Power: 4000 watts max X 1 @1-ohm, 2000 watts max X 1 @2-ohms, 1000 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....
1 ohm stable: able to continuously power loads of 1 ohm without encountering difficulties such as overheating. Typically made to power up subwoofers....
Variable subsonic filter: to prevent your subwoofer(s) from bottoming out, the variable subsonic filter filters out frequencies below the subwoofer(s)....
Variable low-pass crossover: subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications....

Built-in Amplifier - With a MOSFET power supply you get improved switching speeds, better performance with less power from the driver, lower gate-to-drain feedback capacitance, lower thermal impedance for higher switching frequencies.
Variable Low-Pass Filter - A low-pass filter is an electronic circuit that removes all the notes above the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s).
High Level Inputs - Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the LOPRO10 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs.
Low-Level Inputs - Line level inputs (RCA inputs / low-level inputs) use RCA interconnect cables to link the LOPRO10 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers.
Variable Bass Boost - Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.

4 Ohm: 450 watts x 1 ch. | 2 Ohm: 775 watts x 1 ch. | 1 Ohm: 1100 watts x 1 ch..
Frequency Response: 20Hz - 250Hz | Low Pass Filter (Variable): 40Hz - 250Hz 12dB/Oct.
Subsonic Filter (Variable): 20Hz - 50Hz 12dB/Oct | Bass Boost (0 - 12dB): 45Hz.

4 Ohm: 650 watts x 1 ch. | 2 Ohm: 1100 watts x 1 ch. | 1 Ohm: 1650 watts x 1 ch..
Frequency Response: 20Hz - 250Hz | Low Pass Filter (Variable): 40Hz - 250Hz 12dB/Oct.
Subsonic Filter (Variable): 20Hz - 50Hz 12dB/Oct | Bass Boost (0 - 12dB): 45Hz.

4 Ohm: 225 watts x 1 ch. | 2 Ohm: 375 watts x 1 ch. | 1 Ohm: 550 watts x 1 ch..
Frequency Response: 20Hz - 250Hz | Low Pass Filter (Variable): 40Hz - 250Hz 12dB/Oct.
Subsonic Filter (Variable): 20Hz - 50Hz 12dB/Oct | Bass Boost (0 - 12dB): 45Hz.

The 351 is a single-channel, 31-band, 1/3-octave graphic equalizer with many features: constant Q circuitry with a 3% center frequency accuracy, 20mm center detent sliders, selectable boost/cut range of 6dB or 12dB, active balanced and unbalanced input and output connections, adjustable high-pass filter, adjustable low-pass filter, variable input level control, clip level indicators, ground lift switch, internal power supply, and selectable line voltage switch.
The ART 351 Single Channel 31-Band Equalizer features a rugged all-steel chassis that occupies a single 19" rackspace.