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API AUDIO 235L 200-Series Noise Gate and Expander Module

BH #AP235L • MFR #235L
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API AUDIO 235L 200-Series Noise Gate and Expander Module
Key Features
  • For Legacy/Vision Consoles and L200 Rack
  • -45 to +25 dBu Threshold Control
  • Variable Depth Control Down to -80 dB
  • Adjustable Release: 50 ms to 3 Seconds
Providing engineers with one of the fastest gates available today, the API Audio 235L is a noise gate and expander module for 200-series hardware such as the Vision/Legacy consoles and L200 rack. Sporting Threshold (-45 to +25 dBu), Depth (down to -80 dB), and Release controls (50 ms to 3 seconds), the 235L offers all the tools you need for quashing unwanted noise.
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API AUDIO 235L Overview

Providing engineers with one of the fastest gates available today, the API Audio 235L is a noise gate and expander module for 200-series hardware such as the Vision/Legacy consoles and L200 rack. Sporting Threshold (-45 to +25 dBu), Depth (down to -80 dB), and Release controls (50 ms to 3 seconds), the 235L offers all the tools you need for quashing unwanted noise.

With onboard switches, you can select between 2:1 expander or noise gate modes and release or hold functions. The module maintains unity gain throughout the circuitry regardless of onboard settings. A 5-segment LED meter helps you keep an eye on gain-reduction levels. With API 2510 and 2520 op-amps and a custom transformer-balanced output, the 235L delivers the signature hardware sound for which API is known.

Ultrafast Gating
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.
Expander and Release/Hold Switch
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 ideal 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 100 ms.

API AUDIO 235L Specs

General
Compatibility
API Audio Legacy Consoles / Vision Consoles / L200 Rack Enclosure
Input Impedance
>10 Kilohms (Unbalanced)
Output Impedance
85 Ohms (Transformer Balanced)
Maximum Input Level
+28 dBu
Frequency Response
30 Hz to 20 kHz
Noise
Gate Closed: -102 dBu
Gate Open: -90 dBu
THD
0.008% (at +4 dBu)
Power
Power Source
Proprietary Interface
DC Input Power
16 VDC
Operating Current
100 mA (Maximum)
Physical
Mounting
Front: 2x 200-Series Rack Screw
Color
Black
Material of Construction
Metal
Dimensions
6.5 x 2.65 x 1.25" / 16.5 x 6.73 x 3.17 cm
Weight
0.61 lb / 0.28 kg

API AUDIO 235L Reviews

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