Aphex Systems 240

Aphex Systems 240

Purpose

THE MODEL 240 combines elements of Aphex’ famous Logic-Assisted gate (as found on the Aphex Models 230 and 622) and our Easyrider® automatic compressor models.

The Logic-Assisted Gate technology provides the most reliable, accurate, and stable operation of any gate. The patented circuitry (U.S. Patent 5,334,947) is designed to never false trigger, click or chatter. Once triggered, even by a microscopic transient, the gate progresses through its attack, hold and release sequence.

Controls on the gating portion of the Model 240 include Threshold, Attack, Hold, Release, and Depth.

Unlike most combined gate/compressor devices, the Model 240 is designed to have both technologies work as a seamlessly integrated system. When the Logic-Assisted gate activates, the Easyrider compressor is prevented from releasing. This avoids the conflicting nature of the compressor attempting to raise signal level while the gate attempts to reduce it. The gain reduction is‘frozen’ until the gate is opened again.

Controls in the compressor section of the Model 240 include Drive, Speed (the baseline release rate of the compressor), and Output. Each channel on the 240 may be used independently or the two channels may be linked for stereo processing.

A front panel multicolored LED bar graph meter displays either peak output level or gain reduction.

Connections

A rear key insert jack allows line-level equipment to be inserted into the signal path of the gate’s threshold detector for applications such as de-essing or keying the gate to an external signal. Other rear panel connections include balanced 1/4" TRS line XLR mic inputs and outputs, as well as a level selector to choose between –10dBV or +4dBu operation.

GENERAL SPECIFICATIONS

LINE INPUTS

• Connector:  XLR-3F & 1/4 in. TRS phone Jack each channel

• Type:  Balanced, may be used unbalanced

• Input Z:  10KΩ nominal

• Maximum Input Level (MIL):  +24dBu

• CMRR:  Greater than 70dB @ 60Hz

• Nominal Gain:  0dB

• Operating Level:  Switched between -10dBV and +4dBu; channels independent

OUTPUT

• Connector:  XLR-3M and TRS 1/4 in. phone

• Type:  XLR is Impedance Balanced (may be used unbalanced); TRS is unbalanced.

• Output Z Balanced:  XLR & TRS: 66Ω

• Output Z Unbalanced:  XLR & TRS: 33Ω

• Nominal Level  Same as input, determined determined by operating level switch

• Maximum Output Level (MOL):  +25dBu Unloaded

COMPRESSOR

• Attack/Release:  Program dependent, user variable release baseline.

• Ratio:  3:1

• Threshold:  Fixed

• Knee:  Medium Hard

GATE

• Attack:  Variable, 4 uSec to 100 mSec

• Hold  Variable, 5 mSec to 500 mSec

• Release:  Variable, 100mSec to 1Sec

• Threshold:  Variable, +20 to -60dB

• Depth:  Variable, 0 to 80dB

GATE INSERT

• Connector Type Send:  1/4â€� TRS Phone Jack, Balanced

• Connector Type Return:  1/4â€� TRS Phone Jack, Balanced

• Nominal Operating Level:  0dBu

• Point of Insertion:  Between input stage and gate detector

ANALOG AUDIO

• THD:  <.01% @ +4dBu Out

• IMD:  <.01% @ +4dBu Out

• Freq Resp (FLAT):  5Hz to 65KHz +/- 1dB

OTHER SPECS

• Power requirements:  85 to 260V~, 50-60Hz

• Power Consumption (maximum):  12 Watts

• Dimensions:  19â€� W x 1.75â€� H x 8.25â€� overall depth (482.6mm W x 445mm H x 209.6mm overall depth)

• Depth Behind Front Panel:  7.5â€� (190.5mm)

• Net Weight:  Rack-mounted: 6lbs. (2.73kg)

• Shipping Weight:  9lbs. (4.1kg)