{"product_id":"preamp-ne5532-op-can-adjust-customized-three-frequency-divider-crossover-output","title":"Preamp NE5532 Op Can Adjust\/Customized Three-Frequency Divider Crossover Output","description":"\u003cp\u003eITEM NAME:Preamp NE5532 Op Can Adjust\/Customized Three-Frequency Divider Crossover Output Product Description 1. Filter type: subtractive divider 2. Crossover point: Crossover point 500HZ, 5kHZ (that is, 20HZ-500HZ is bass output, 500HZ-5KHZ is midrange output, 5KHZ-20KHZ is treble output) 3. Attenuation slope: -24dB\/Oct 4. Board structure: 3-channel output, treble, bass, midrange 5. Op amp chip: NE5532P (other op amps such as OPA2604AP OP275G TL072, etc. can also be replaced ) 6. PCB size: 98*84mm 7. DC positive and negative dual 9-15V The 10k resistor in the picture above cannot be changed The R calculated by the calculation software is too large, such as C=1nF, f=5kHz; according to the formula f=0.707\/(2X314Rc) the data is very accurate) R=22k. So the following number According to (Increase C by 10 times, R remains unchanged, f becomes 1\/10 of the original) For reference only When C=1nF, f=5kHz, R=225k (the accurate data should be 22k) C=1nF, f=4.7kHz f, R=24K. C=1nF, f=4.4kHz #f, R=256k. C=1. nF, f=4.1kHz f, R=183k C=1.nF, f=3.8kHz Hf, R=19.7k. When C=1.5nF, f=3.5kH, R=214kC=1.5nF When f=35kHz, R=21.4k When C=15nF,=32kHz, R=235k (I used C=15nF, R=22k, use the formula f=3333Hz, use soft Piece f=3410Hz) C=2.2nF, f=3kHz Hf, R=17k C=2.2nF, f=2.8kHz Hf, R=183k C=2.2nF, f=2.5kHz f, R=20.5k. C=2.2nF, f=2.2KHz Hf, R=233k C=2.7nF, f=2.2kHz Bf, R=19k. C=2.7nF, f=2KHz Hf, R=20.8k. C=3.3nF, f=1.8kHz Hf, R=19k. C=3.3nF, f=1.5kHz f, R=22.7k When C=47nF=1.3kH, R=184k C=4.7 At 1kHz, R=24k C=6.8nF, f=1kHz f, R=16.6k. When C=68nF, f=900Hz, R=18.4k C=6.8nF, f=800Hz f, R=20.7k C=6.8nF, f=700kHz Hf, R=23.6K. When C=10nF, f=700Hz, R=16.1k C=10nF, f=600Hz Hf, R=18.8k. When C=10nF, f=500Hz, R=225k (the accurate data should be 22k) The good effect is related to the relative accuracy of the resistance and capacitance data, especially the resistance needs to be relatively consistent in size. Choose the largest and smallest capacitance in the parallel connection place, so that the error wi.Find many great new \u0026amp; used options and get the best deals for Preamp NE5532 Op Can Adjust\/Customized Three-Frequency Divider Crossover Output at the best online prices at Order2india Shopping! Free shipping for many products!\u003c\/p\u003e","brand":"O2INEW","offers":[{"title":"Default Title","offer_id":1550452064271,"sku":"O2I-0-144256160144","price":4576.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/2582\/products\/s-l2000__85204_df86aa01-3e91-44ab-a73d-2d74758970ba.jpg?v=1679890776","url":"https:\/\/order2india.com\/products\/preamp-ne5532-op-can-adjust-customized-three-frequency-divider-crossover-output","provider":"ORDER2INDIA SHOPPING","version":"1.0","type":"link"}