Best Optical Lowpass Filter

Behringer Neutron Semi-Modular Analog Synth

  • 80HP Eurack-sized Analog Monosynth Module with 2 Oscillats.
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Dave Smith Instruments OB-6 6 Voice Analog Synthesizer

  • 61-key 10-voice Polyphonic Analog Synthesizer with 2 VCOs.
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Erica Synths Black Dual VCF Eurorack Filter Module

  • 18HP Dual Multimode Filter with Highpass/Lowpass/Bpass Modes 16-b Spectrum Analyzer.
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Erica Synths Black Polivoks VCF v2 Multi-Mode Eurorack Filter Module

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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..
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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.
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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.
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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..
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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..
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