{"id":9996536077,"title":"API 235L Noise Gate","handle":"api-235l-noise-gate","description":"\u003ch1 id=\"reader-title\"\u003eAPI: 235L Noise Gate\u003c\/h1\u003e\n\u003cp\u003eFeatures\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThreshold control from -45 to +25 dBu\u003c\/li\u003e\n\u003cli\u003eVariable Fine Adjustable Depth to -80 dB\u003c\/li\u003e\n\u003cli\u003eAdjustable Release\/Hold Time, 50mS to 3 sec\u003c\/li\u003e\n\u003cli\u003e2:1 Expander or Noise Gate Selection\u003c\/li\u003e\n\u003cli\u003eRelease or Hold Switch for Release control knob\u003c\/li\u003e\n\u003cli\u003eAlways at Unity Gain, Regardless of settings\u003c\/li\u003e\n\u003cli\u003eLED Gain Reduction Meter\u003c\/li\u003e\n\u003cli\u003eUses the API 2510 and API 2520 Op-Amps\u003c\/li\u003e\n\u003cli\u003eTransformer Output, to +28 dBu\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe API 235L Noise Gate\/Expander has the ability to reduce noise in any type of program. The 235L can open unusually fast, without losing any part of the sound. Its extreme flexibility, repeatable settings, and superb sound make it ideal for all studio, live sound, and broadcast applications.\u003c\/p\u003e\n\u003cp\u003eThe 235L is one of the fastest noise gates manufactured today. When an engineer is faced with program material with a high level of background noise, the 235L can either Gate the signal at a preset Threshold, or with the use of the Expander function, can reduce the background noise to an almost undetectable level. This can be achieved without the typical loss of the program material caused by slow triggering of the signal, or \"pinging\" caused by false triggering.\u003c\/p\u003e\n\u003cp\u003eWith a wide range of adjustment, the 235L can operate from -45 to +25 dBu, fitting into any audio situation regardless of program level. Once the Threshold level is set, the Attack time can be selected to react faster than 100uS or slightly slower than 25mS to reduce false triggering. Although the Depth control has a full range of -80 dB, the scale is expanded in the first half of rotation so 0 to 9 dB is available for fine tuning of subtle, undetectable gating. The second half of rotation is from 10 to 80 dB for more drastic noise reduction.\u003c\/p\u003e\n\u003cp\u003eThe Expander function uses a 1:2 ratio, allowing the signal to \"sneak up\" to the full signal level without any loss of \"under threshold\" vocal or percussion nuances. Setting the threshold in the Gate function to the desired level, then switching to the Expander mode is the perfect setup.\u003c\/p\u003e\n\u003cp\u003eFor special gating functions such as the famed \"gated snare reverb\", the Release function can be switched to Hold, and the Release control becomes the Hold time. In both scenarios, the unselected function has a set time of 100mS.\u003c\/p\u003e\n\u003cp\u003eWhen used with the other 200L series modules, a complete input strip can be built from input through dynamics, equalization, and final output.\u003c\/p\u003e\n\u003cp\u003eThe 235L makes use of the 2510 and 2520 op-amps and therefore exhibits the reliability, long life, and uniformity which are characteristic of all API products.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eThreshold Range:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-45 dBu to +25 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eDepth Range:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e0 to -80 dB, Fine adjust control, -9 at 50% rotation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAttack Time:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eFast = 100 u\/S, Normal = 25 mS gate at 90% open\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRelease Time\/Hold Time:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e50 mS to 3 sec.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u0026gt;10 K Ohms, Un-Balanced\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e85 Ohms, Transformer coupled, Balanced\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eNominal Levels:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-45 dBu to +20 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eClipping Level:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e+28 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e0, -.3, 30 to 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eNoise:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eGate Closed: -102 dBu, Unweighted\u003cbr\u003e Gate Open: -90 dBu Unweighted\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eDistortion:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eGate Open:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-40 dBu=.3%THD, -30=.1%, -20=.03%,\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-10=.01%, +4=.008%, +12=.01%, +28=.1%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eConnectors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e.100 spaced ELCO\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e±16 VDC, 100 mA max @ +24 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1.25\" X 2.65\" X 6.5\" Deep\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eSize (Boxed for Shipping):\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e4.5\" X 6.25\" X 10\"\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eActual Weight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e.61 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e.98 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","published_at":"2017-05-14T20:27:04+02:00","created_at":"2017-05-14T20:28:22+02:00","vendor":"API","type":"Expander","tags":["API","API 235L Noise Gate","Noise Gate","Price Range_$750 to $1000","Shop by brand_API","Shop by category_Expanders \/ Gates"],"price":79216200,"price_min":79216200,"price_max":79216200,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":37485023181,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"235L","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"API 235L Noise Gate","public_title":null,"options":["Default Title"],"price":79216200,"weight":920,"compare_at_price":null,"inventory_quantity":1,"inventory_management":null,"inventory_policy":"deny","barcode":""}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/prod_235L_1_l.jpg?v=1494786530","\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/sp1_235l.jpg?v=1494786586","\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/200_pinout_80a01fc3-7e66-4ddf-91a1-5fdce0fd008e.gif?v=1494786596"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/prod_235L_1_l.jpg?v=1494786530","options":["Title"],"content":"\u003ch1 id=\"reader-title\"\u003eAPI: 235L Noise Gate\u003c\/h1\u003e\n\u003cp\u003eFeatures\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThreshold control from -45 to +25 dBu\u003c\/li\u003e\n\u003cli\u003eVariable Fine Adjustable Depth to -80 dB\u003c\/li\u003e\n\u003cli\u003eAdjustable Release\/Hold Time, 50mS to 3 sec\u003c\/li\u003e\n\u003cli\u003e2:1 Expander or Noise Gate Selection\u003c\/li\u003e\n\u003cli\u003eRelease or Hold Switch for Release control knob\u003c\/li\u003e\n\u003cli\u003eAlways at Unity Gain, Regardless of settings\u003c\/li\u003e\n\u003cli\u003eLED Gain Reduction Meter\u003c\/li\u003e\n\u003cli\u003eUses the API 2510 and API 2520 Op-Amps\u003c\/li\u003e\n\u003cli\u003eTransformer Output, to +28 dBu\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe API 235L Noise Gate\/Expander has the ability to reduce noise in any type of program. The 235L can open unusually fast, without losing any part of the sound. Its extreme flexibility, repeatable settings, and superb sound make it ideal for all studio, live sound, and broadcast applications.\u003c\/p\u003e\n\u003cp\u003eThe 235L is one of the fastest noise gates manufactured today. When an engineer is faced with program material with a high level of background noise, the 235L can either Gate the signal at a preset Threshold, or with the use of the Expander function, can reduce the background noise to an almost undetectable level. This can be achieved without the typical loss of the program material caused by slow triggering of the signal, or \"pinging\" caused by false triggering.\u003c\/p\u003e\n\u003cp\u003eWith a wide range of adjustment, the 235L can operate from -45 to +25 dBu, fitting into any audio situation regardless of program level. Once the Threshold level is set, the Attack time can be selected to react faster than 100uS or slightly slower than 25mS to reduce false triggering. Although the Depth control has a full range of -80 dB, the scale is expanded in the first half of rotation so 0 to 9 dB is available for fine tuning of subtle, undetectable gating. The second half of rotation is from 10 to 80 dB for more drastic noise reduction.\u003c\/p\u003e\n\u003cp\u003eThe Expander function uses a 1:2 ratio, allowing the signal to \"sneak up\" to the full signal level without any loss of \"under threshold\" vocal or percussion nuances. Setting the threshold in the Gate function to the desired level, then switching to the Expander mode is the perfect setup.\u003c\/p\u003e\n\u003cp\u003eFor special gating functions such as the famed \"gated snare reverb\", the Release function can be switched to Hold, and the Release control becomes the Hold time. In both scenarios, the unselected function has a set time of 100mS.\u003c\/p\u003e\n\u003cp\u003eWhen used with the other 200L series modules, a complete input strip can be built from input through dynamics, equalization, and final output.\u003c\/p\u003e\n\u003cp\u003eThe 235L makes use of the 2510 and 2520 op-amps and therefore exhibits the reliability, long life, and uniformity which are characteristic of all API products.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eThreshold Range:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-45 dBu to +25 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eDepth Range:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e0 to -80 dB, Fine adjust control, -9 at 50% rotation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eAttack Time:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eFast = 100 u\/S, Normal = 25 mS gate at 90% open\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eRelease Time\/Hold Time:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e50 mS to 3 sec.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u0026gt;10 K Ohms, Un-Balanced\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e85 Ohms, Transformer coupled, Balanced\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eNominal Levels:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-45 dBu to +20 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eClipping Level:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e+28 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e0, -.3, 30 to 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eNoise:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eGate Closed: -102 dBu, Unweighted\u003cbr\u003e Gate Open: -90 dBu Unweighted\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eDistortion:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eGate Open:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-40 dBu=.3%THD, -30=.1%, -20=.03%,\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e-10=.01%, +4=.008%, +12=.01%, +28=.1%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eConnectors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e.100 spaced ELCO\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e±16 VDC, 100 mA max @ +24 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1.25\" X 2.65\" X 6.5\" Deep\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eSize (Boxed for Shipping):\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e4.5\" X 6.25\" X 10\"\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eActual Weight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e.61 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e.98 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e"}

API 235L Noise Gate

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API: 235L Noise Gate

Features

  • Threshold control from -45 to +25 dBu
  • Variable Fine Adjustable Depth to -80 dB
  • Adjustable Release/Hold Time, 50mS to 3 sec
  • 2:1 Expander or Noise Gate Selection
  • Release or Hold Switch for Release control knob
  • Always at Unity Gain, Regardless of settings
  • LED Gain Reduction Meter
  • Uses the API 2510 and API 2520 Op-Amps
  • Transformer Output, to +28 dBu

The API 235L Noise Gate/Expander has the ability to reduce noise in any type of program. The 235L can open unusually fast, without losing any part of the sound. Its extreme flexibility, repeatable settings, and superb sound make it ideal for all studio, live sound, and broadcast applications.

The 235L is one of the fastest noise gates manufactured today. When an engineer is faced with program material with a high level of background noise, the 235L can either Gate the signal at a preset Threshold, or with the use of the Expander function, can reduce the background noise to an almost undetectable level. This can be achieved without the typical loss of the program material caused by slow triggering of the signal, or "pinging" caused by false triggering.

With a wide range of adjustment, the 235L can operate from -45 to +25 dBu, fitting into any audio situation regardless of program level. Once the Threshold level is set, the Attack time can be selected to react faster than 100uS or slightly slower than 25mS to reduce false triggering. Although the Depth control has a full range of -80 dB, the scale is expanded in the first half of rotation so 0 to 9 dB is available for fine tuning of subtle, undetectable gating. The second half of rotation is from 10 to 80 dB for more drastic noise reduction.

The Expander function uses a 1:2 ratio, allowing the signal to "sneak up" to the full signal level without any loss of "under threshold" vocal or percussion nuances. Setting the threshold in the Gate function to the desired level, then switching to the Expander mode is the perfect setup.

For special gating functions such as the famed "gated snare reverb", the Release function can be switched to Hold, and the Release control becomes the Hold time. In both scenarios, the unselected function has a set time of 100mS.

When used with the other 200L series modules, a complete input strip can be built from input through dynamics, equalization, and final output.

The 235L makes use of the 2510 and 2520 op-amps and therefore exhibits the reliability, long life, and uniformity which are characteristic of all API products.

 

Specifications

Threshold Range:

-45 dBu to +25 dBu

Depth Range:

0 to -80 dB, Fine adjust control, -9 at 50% rotation

Attack Time:

Fast = 100 u/S, Normal = 25 mS gate at 90% open

Release Time/Hold Time:

50 mS to 3 sec.

Input Impedance:

>10 K Ohms, Un-Balanced

Output Impedance:

85 Ohms, Transformer coupled, Balanced

Nominal Levels:

-45 dBu to +20 dBu

Clipping Level:

+28 dBu

Frequency Response:

0, -.3, 30 to 20 kHz

Noise:

Gate Closed: -102 dBu, Unweighted
Gate Open: -90 dBu Unweighted

Distortion:

Gate Open:

-40 dBu=.3%THD, -30=.1%, -20=.03%,

 

-10=.01%, +4=.008%, +12=.01%, +28=.1%

Connectors:

.100 spaced ELCO

Power Consumption:

±16 VDC, 100 mA max @ +24 dBu

Size:

1.25" X 2.65" X 6.5" Deep

Size (Boxed for Shipping):

4.5" X 6.25" X 10"

Actual Weight:

.61 lb.

Shipping Weight:

.98 lb.

 

Sku: 235L
Vendor: API