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586

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3.Turn the 586’s Drive control to the minimum (+10 dB) position, the Level control to the 12

o’clock (0 dB) position, and apply power to the 586. Make sure your console’s gain slider is at
approximately nominal level (“0 dB”) and begin to slowly increase the gain of the 586 using the
Drive control.You should increase the gain until the recording device is operating at nominal sig-
nal input level. Experiment with the Drive and Level controls to achieve the level of desired tube
saturation, i.e., low settings of the Drive control in conjunction with higher settings of the Level
control will result in minimal amounts of tube character; higher settings of the Drive control in
conjunction with lower settings of the Level control will result in more audible tube saturation.

Connecting the 586 directly to a recorder (see Figure 2, next page).

1. Make microphone connections, being careful to keep the Drive control in the minimum (+10 dB)

position.

2. Connect the 586’s Line Outputs directly to the audio inputs of your recorder. This will require

the disconnection of the console’s audio output to the specific track of the recorder.

3. Enable the record function of the specific track of the recorder and open the specific tape track

return in the console which corresponds to the track to which the 586 is connected. As you
increase the setting of the Drive control, you should begin to hear the input of the 586 running
through the recorder and returning to your console as a tape return.

NOTE:When recording in this way, the dbx PeakPlus™ limiter can be used to ensure that the level going to

tape does not exceed the level set by the limiter’s Threshold control. This is especially useful for record-
ing to a DAT or digital multitrack recorder where exceeding 0dB FS on the recorder can cause cata-
strophic distortion. Simply set the 586’s limiter Threshold control such that 0dB FS is never allowed to
be exceeded on the recording device.

6

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IN

OUT

Channel 1

MANUFACTURED UNDER THE FOLLOWING U.S. PATENTS:
4,368,425  5,282,252.  OTHER PATENTS PENDING.

Power Supply, if required

Figure 1: Connecting a Mic to a console.

Summary of Contents for 586

Page 1: ...Vacuum Tube Preamplifier 586 Owner s Manual...

Page 2: ...he system to which it is connected can result in full line voltage between chassis and earth ground Severe injury or death can then result if the chas sis and earth ground are touched simultaneously L...

Page 3: ...6 Introduction 2 Features 2 Inspection 3 Warranty 3 Background 4 Connecting the dbx 586 to Your System 5 Operating Controls 7 Front Panel 7 Rear Panel 10 Specifications 12 Ma anua al Co ont tent ts s...

Page 4: ...nce and transient response The premium grade 12AU7 vacuum tubes used in the dbx 586 are hand tested and graded specifically for gain noise and microphonics Precision 1 resistors are used throughout th...

Page 5: ...ing the product to any but the specified receptacles This warranty is void unless service or repairs are performed by an authorized service center No responsibility is assumed for any special incident...

Page 6: ...te larger circuit boards dedicated to the mic pre resulting in better frequency and dynamic range as well as better noise specs The 586 is the perfect partner for your microphone providing you with tw...

Page 7: ...ches the type and rating corresponding to the voltage in use as indicated on the rear panel of the 586 Apply power to the 586 Connect the AC power cord to the AC power receptacle on the back of the un...

Page 8: ...e 586 s Line Outputs directly to the audio inputs of your recorder This will require the disconnection of the console s audio output to the specific track of the recorder 3 Enable the record function...

Page 9: ...ing Co ont tro ols s 7 IN OUT Channel 1 MANUFACTURED UNDER THE FOLLOWING U S PATENTS 4 368 425 5 282 252 OTHER PATENTS PENDING Power Supply if required Figure 2 Connecting the 586 to a recorder SHAPE...

Page 10: ...gnal For minimal tube saturation cleanest possible sound use relatively low settings of the DRIVE control and higher settings of the LEVEL control Moderate amounts of tube character can be achieved wi...

Page 11: ...e METER SOURCE switch settings as shown METER SOURCE switch setting Selection What is displayed NOTE When the OUTPUT LEVEL meter source switch is selected 0 VU corresponds to an output level of 4 dBu...

Page 12: ...us of the LINE INST switch described below LINE INST switch To connect instrument level devices to the 586 use either the 1 4 or XLR Line Input connector and depress the LINE INST switch Doing so will...

Page 13: ...s use of the equalizer limiter and digital output option This input source would be select ed by enabling the insert switch on the front panel LINE OUTPUTS Both XLR and TRS 1 4 connectors are provided...

Page 14: ...cally balanced unbalanced RETURN Impedance SEND 100 balanced 50 unbalanced RETURN 40k balanced 20k unbalanced Nominal Send Level 4 dBu Nominal Return Level 4 dBu SYSTEM PERFORMANCE DRIVE Control Range...

Page 15: ...ly when the optional dbx TYPE IV module is installed in the unit DITHER See manual for dbx Type IV option SHAPE See manual for dbx Type IV option REAR PANEL SWITCHES INST Switches the gain and impedan...

Page 16: ...Utah 84070 Phone 801 568 7660 Fax 801 568 7662 Int l Fax 603 672 4246 Questions or comments E mail us at customer dbxpro com or visit our World Wide Web home page at www dbxpro com A Harman Internati...

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