dbx 902 Manual - Page 4

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ARRANTY

1. The warranty registration card that accompanies this product must be mailed within 30 days after purchase date

to validate this warranty. Proof-of-purchase is considered to be the burden of the consumer.

2. dbx warrants this product, when bought and used solely within the U.S., to be free from defects in materials and

workmanship under normal use and service.

3. dbx liability under this warranty is limited to repairing or, at our discretion, replacing defective materials that show

evidence of defect, provided the product is returned to dbx WITH RETURN AUTHORIZATION from the factory,

where all parts and labor will be covered up to a period of two years. A Return Authorization number must be

obtained from dbx by telephone. The company shall not be liable for any consequential damage as a result of the

product's use in any circuit or assembly.

4. dbx reserves the right to make changes in design or make additions to or improvements upon this product with-

out incurring any obligation to install the same additions or improvements on products previously manufactured.

5. The foregoing is in lieu of all other warranties, expressed or implied, and dbx neither assumes nor authorizes any

person to assume on its behalf any obligation or liability in connection with the sale of this product. In no event

shall dbx or its dealers be liable for special or consequential damages or from any delay in the performance of

this warranty due to causes beyond their control.

NTRODUCTION

Congratulations on your purchase of the dbx 902 De-Esser. This manual provides you with the steps needed to

install and operate the 902 module. The manual also includes information on completing the registration card, as

well as customer support telephone numbers.

EATURES

The dbx model 902 De-Esser is designed for use in the F900A mainframe or the FS900 miniframe. The 902Õs

unique features make it possible to achieve the exact amount of de-essing desired regardless of variations in signal

levels.

Log-Domain Processing: The 902 examines the differences in dB between the high frequency and full-bandwidth

portions of the signal, allowing de-essing of signals which change in level by as much as 60 dB. Conventional

de-essers require readjustment of their threshold control when a vocalist drops from singing voice to a whisper-

ing voice. By contrast, the 902 does not even have a threshold control to require adjustment.

User-Defined Crossover Frequency/HF Only or Broadband Operation: The two-pole, maximally flat filter design

used by the 902 in separating high frequencies from low frequencies can be user adjusted over a range of 800

Hz to 8 kHz. This, in conjunction with the HF only mode, enables the 902 to be used for special, non-vocal

applications such as removing ÒclicksÓ from a close-micÕd guitar.

RMS Level Detection: dbx patented RMS level detectors enable the 902 to sense level on the same basis as the

human ear -- providing a natural and accurate response to audio waveforms.

Other features include:

¥ Control Voltage Inputs and Outputs

¥ Expanded Scale LED Metering

¥ Hard-Wired Bypass Switch

NSPECTION

Your dbx 902 was carefully manufactured, inspected and tested at the factory. If obvious physical damage is noticed

contact the carrier immediately to make a damage claim.

If the 902 appears to malfunction during use, refer to the connections section of this manual to ensure proper con-

nections, then contact your dealer or our factory service personnel for advice on how to proceed.

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