# Doepfer A-120 drillable.com › eurorack › makers › doepfer-de › a-120. As of the capture of 9 Sep 2026; the index built 17 Sep 2026, 23:23 UTC · [cites, never asserts](/standing). Source: https://doepfer.de/a100_man/A120_man.pdf · quotes only, no licence recorded. Search `/eurorack/makers/doepfer-de/a-120?q=…` · MCP https://mcp.drillable.com · [html](/eurorack/makers/doepfer-de/a-120?format=html) · [markdown](/eurorack/makers/doepfer-de/a-120?format=md) · [json](/eurorack/makers/doepfer-de/a-120?format=json) · [discovery](/.well-known/drillable.json) · [guide](/llms.txt) No in-force window is declared for the document. ## Records read from it (16) By drillable.com ([llm-extract/3](/standing#methods)); scored precision 1.00, recall 0.36 on the harness's last sample of 50. ### [a 120](/eurorack/makers/doepfer-de/a-102/a-120) (3 records) - **based-on** = various Moog synthesizers · as [a 102 · a 120](/eurorack/makers/doepfer-de/a-102/a-120) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=485&end=604) · [sha256:0acf6425675f11c8…](/hashes/sha256:0acf6425675f11c829cbdc4cdd2e16cfb5e37a2a092a27e4813b2aa516224358) - **architecture** = transistor ladder design · as [a 102 · a 120](/eurorack/makers/doepfer-de/a-102/a-120) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=485&end=604) · [sha256:2dede41d04956be0…](/hashes/sha256:2dede41d04956be07044ade6f758c23adb43cde99ee5c8f254cb9040970f9006) - **slope** = -24 dB/octave · as [a 102 · a 120](/eurorack/makers/doepfer-de/a-102/a-120) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=485&end=604) · [sha256:b9fc0b4a1f4a19a2…](/hashes/sha256:b9fc0b4a1f4a19a28afe44b6d231d35ee89e372b474b6bab87e7567f718e5571) ### [freq control](/eurorack/makers/doepfer-de/a-102/a-120/freq-control) (3 records) - **function** = Cut-off frequency control · as [control 1 freq](/eurorack/makers/doepfer-de/a-102/a-120/control-1-freq) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=951&end=985) · [sha256:4f63bbab3ba1d0b3…](/hashes/sha256:4f63bbab3ba1d0b371514588b477ccc343f7c58d0d26327da6dc0023656fd258) - **behavior** = At 10, the filter is fully open · as [a 120 · freq control](/eurorack/makers/doepfer-de/a-102/a-120/freq-control) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1661&end=1693) · [sha256:5005126316457b44…](/hashes/sha256:5005126316457b447edb008712e7a3d4f3121a11d2d6005ffd2d7f38005561c6) - **behavior** = at 0 the filter is completely shut, and there will be no output signal at all · as [a 120 · freq control](/eurorack/makers/doepfer-de/a-102/a-120/freq-control) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1831&end=1915) · [sha256:b4ed58cafc1da6ff…](/hashes/sha256:b4ed58cafc1da6fff4a2217b79de2b160194a3eb3e3b0af99a163b3210629585) ### [res control](/eurorack/makers/doepfer-de/a-102/a-120/res-control) (2 records) - **function** = Control for setting the filter's resonance (emphasis) · as [control 5 res](/eurorack/makers/doepfer-de/a-102/a-120/control-5-res) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1098&end=1161) · [sha256:cc9176fee48e8529…](/hashes/sha256:cc9176fee48e852983cc9a4d34843d6a68a1bfe6df5a48d49f9de1ca0d10260e) - **behavior** = Close to its maximum setting, the filter becomes so resonant that it goes into self-oscillation, and starts behaving like a sine wave · as [a 120 · res control](/eurorack/makers/doepfer-de/a-102/a-120/res-control) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=2534&end=2668) · [sha256:db2e97b2a433c8e3…](/hashes/sha256:db2e97b2a433c8e31860c4cedb603a528518b2c4faf6422782b9322a829af7e0) ### [audio in](/eurorack/makers/doepfer-de/a-102/a-120/audio-in) (1 record) - **function** = Input to the filter · as [a 120 · audio in](/eurorack/makers/doepfer-de/a-102/a-120/audio-in) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1281&end=1312) · [sha256:d755c8667358e926…](/hashes/sha256:d755c8667358e926cf42c5842274a48e410102dcabe1b8b7023c42888de3e602) ### [audio out](/eurorack/makers/doepfer-de/a-102/a-120/audio-out) (1 record) - **function** = Output from the filter · as [a 120 · audio out](/eurorack/makers/doepfer-de/a-102/a-120/audio-out) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1313&end=1348) · [sha256:fa5bd981cc965105…](/hashes/sha256:fa5bd981cc965105f9db5dcff961d1e07b76393354123f788085878ab1a9613d) ### [control 2 cv2](/eurorack/makers/doepfer-de/a-102/a-120/control-2-cv2) (1 record) - **function** = Attenuator for CV at input " · as [a 120 · control 2 cv2](/eurorack/makers/doepfer-de/a-102/a-120/control-2-cv2) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=986&end=1022) · [sha256:9e87a3b5e4727e84…](/hashes/sha256:9e87a3b5e4727e844d00fd2146f9790e56c12644a73fe47b3b15f49743faf919) ### [control 3 cv3](/eurorack/makers/doepfer-de/a-102/a-120/control-3-cv3) (1 record) - **function** = Attenuator for CV at input § · as [a 120 · control 3 cv3](/eurorack/makers/doepfer-de/a-102/a-120/control-3-cv3) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1023&end=1060) · [sha256:c011ad157e297991…](/hashes/sha256:c011ad157e297991d8dc7f86e8d7a60164f57611c2e8a8781af68225e893bcb9) ### [control 4 lev](/eurorack/makers/doepfer-de/a-102/a-120/control-4-lev) (1 record) - **function** = Attenuator for audio input $ · as [a 120 · control 4 lev](/eurorack/makers/doepfer-de/a-102/a-120/control-4-lev) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1061&end=1097) · [sha256:604da6840a882a38…](/hashes/sha256:604da6840a882a383014b0c84231eaad4322820b190ebbe1692228168aa8db88) ### [cv1](/eurorack/makers/doepfer-de/a-102/a-120/cv1) (1 record) - **function** = Voltage control input · as [a 120 · cv1](/eurorack/makers/doepfer-de/a-102/a-120/cv1) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1176&end=1205) · [sha256:e5cbb256c62ddfe3…](/hashes/sha256:e5cbb256c62ddfe3190e4653ba29968a1f7bda10c69b13af070e57f82dfa5101) ### [cv2](/eurorack/makers/doepfer-de/a-102/a-120/cv2) (1 record) - **function** = ditto, level controlled by 2 · as [a 120 · cv2](/eurorack/makers/doepfer-de/a-102/a-120/cv2) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1206&end=1242) · [sha256:2ac3f5ffad988153…](/hashes/sha256:2ac3f5ffad988153a2b0b37e20d58b0489ff66304b84a0ac0a42d9cf0cfe9e60) ### [cv3](/eurorack/makers/doepfer-de/a-102/a-120/cv3) (1 record) - **function** = ditto, level controlled by 3 · as [a 120 · cv3](/eurorack/makers/doepfer-de/a-102/a-120/cv3) · [quote](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7?trace&start=1243&end=1280) · [sha256:586211a1ab6b2eca…](/hashes/sha256:586211a1ab6b2eca8f57533a7d94977eb44576c28ddad7bc46b2d923a28270ab) ## Captures (1) - 9 Sep 2026, 00:04 UTC · https://doepfer.de/a100_man/A120_man.pdf · quotes only (no licence recorded) · 0 revisits · [older text](/hashes/sha256:d66fef87c0f962f116952b4fc318d76686d5625b8d43cf22d608bb20f79638ae) (pdfium/7881, 16 bytes), [text](/hashes/sha256:e864204d4c31e8eb2f1bec4946b3faabf01f15c384120eec4526dc946464c5f7) (pdfium/7881, 6337 bytes) · capture [sha256:77044791cf3dbe3b…](/hashes/sha256:77044791cf3dbe3bc65d0214a1492089cf49d89037d1012db6e10025b5964b1e) A capture is what the source served at that moment; a later change at the source is a new capture, never an edit to this one. --- [standing](/standing) · Drillable™ is a trademark of Drillable LLC.