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OUTBOARD STUDIO GEAR
API 215L Discrete HP/LP Sweep Filter
LIST PRICE: $650.00
This Item Usually Ships in 1 to 3 Business Days
The API 215L is a unique passive, sweepable filter, designed specifically to contour the sound to preserve the natural tone of the signal. Its extreme flexibility, repeatable settings and superb sound make it ideal for all studio, live sound and broadcast applications.
The 215L design is a passive low pass filter with a slope of only 6 dB per octave, and a passive dual high pass filter with a slope of 12 dB per octave. The filters are isolated from each other with the same discrete transistor buffer used in the famous 550 series equalizers. This minimizes interaction between the filters, as well as providing a low impedance source for the filter following the buffer.
The input section is a balanced circuit using the API 2510 all discrete op-amp, minimizing the loading effect on any device plugged into it. The output stage is a transformer balanced output, driven by the all discrete API 2520 op-amp.
The filters are both continuously adjustable, with a range from 20 Hz to 20 kHz in two bands. The low pass filter has a range from 500 Hz to 20 kHz, and the high pass filter has a range from 20 Hz to 600 Hz. This covers a broad range of frequencies throughout the entire audio spectrum.
Because of the subtle nature of the 215L filter, it finds a home with uses like rolling off the low end of a hi-hat, where a natural sound is desired, not the usual "phase-shifter" sound of a 18 to 24 dB per octave filter found on most consoles. It can also be used to thin out room mics, without the complete loss of low end which again usually results from steep filter circuits.
The 215L can be used in the Legacy, Legacy Plus or Vision Series Consoles, or in the L200 Rack. The 215L Filter makes use of the 2520 and 2510 op-amps and therefore exhibits the reliability, long life and uniformity which are characteristic of API products.
Number of Bands: Two
Filter Type: Passive Sweepable Shelf
Filter Frequency Centers: Low Pass: 500 to 20 kHz
High Pass: 20 to 600 Hz
Input Impedance: >20 K Ohms, Balanced
Output Impedance: 85 Ohms, Transformer coupled, Balanced
Nominal Levels: -15 dBu to +15 dBu
Clipping Level: +28 dBu
Frequency Response: 0, -.3, 30 to 20 kHz
Noise: 98 dB below +10 dBm output, unweighted. 20-20 kHz
Distortion: THD: .02% (+4 dB @ 2 K)
Connectors: .100 spaced ELCO
Power Consumption: ±16 Volts DC, 60mA max at +24 dBu out
Size: 1.25" X 2.65" X 6.75" Deep
Size (Boxed for Shipping): 4.5" X 6.25" X 10"
Actual Weight: .51 lb.
Shipping Weight: .88 lb.
Wide range 6 dB per octave LOPASS control
Wide range 12 dB per octave HIPASS control
Balanced input stage
Passive filter design for smooth tone
Unity gain throughout
Hard Wire BYPASS switch
Transformer Coupled Output to +28 dBu
All Discrete Design
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