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Dramastic Audio Obsidian User Manual
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Dramastic Audio Obsidian User Manual

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Dramastic Audio®
Dramastic Audio®
dB
COMPRESSION
Obsidian™
Obsidian™
Obsidian™
Obsidian™
THRESHOLD
RATIO
ATTACK - mS
0
8
4
10
.3
2
12
.1
-15
+15
RELEASE - S
MAKEUP
.6
6
1
3
.3
1.2
10
.1
Auto
30
Lo-Fi
0.5
EXTERNAL
POWER
COMPRESSOR
SIDE-CHAIN
0
+12
USER'S MANUAL
I

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Summary of Contents for Dramastic Audio Obsidian

  • Page 1 Dramastic Audio® Dramastic Audio® EXTERNAL THRESHOLD RATIO ATTACK - mS RELEASE - S MAKEUP POWER COMPRESSOR SIDE-CHAIN Auto Lo-Fi COMPRESSION Obsidian™ Obsidian™ Obsidian™ Obsidian™ USER’S MANUAL...
  • Page 3 Obsidian User’s Manual Warning CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage”...
  • Page 4 The unit has been dropped, or the enclosure damaged. 9. SERVICING – The user should not attempt to service the unit. There are no user serviceable parts inside. Servicing only to be performed by authorized personnel. Copyright ©2006, Dramastic Audio Corp. WARRANTY VOID IF CASE IS OPENED. www.DramasticAudio.com All Rights Reserved.

  • Page 5: Table Of Contents

    Obsidian User’s Manual Table Of Contents Warnings Safety Introduction Installation Rear Panel View Connections Front Panel View Front Panel Controls Limited Warranty Technical Specifications...

  • Page 6: Introduction

    Introduction Thank you for purchasing the Obsidian™ Stereo Compressor. Inspired by some of the most popular compressors in the world, the Obsidian™ is a stereo feed-forward VCA style compressor designed with the recording, mixing, and mastering engineer in mind. Each unit is hand crafted in the U.S.A using high quality precision components.
  • Page 7 Through the use of several proprietary methods, the Obsidian performs a range of tasks unheard of from the average buss compressor. The Obsidian offers superior imaging. The stereo image always remains intact, the highs stay brilliant and clear, and the bottom continues to thunder [especially with the internal “High Pass Filter”...
  • Page 8 Obsidian User’s Manual This page is left intentionally blank..except for this stupid message!

  • Page 9: Installation

    Operating Voltage Before applying power to the unit, make sure the voltage selector on the rear panel is set to the proper voltage for your area of use. The Obsidian™ can be configured for either 110 or 220 volt operation. To change the voltage, use a narrow flat bladed screwdriver to adjust the voltage setting.
  • Page 10 Obsidian User’s Manual Manufactured In USA by Dramastic Audio® No User Serviceable Parts Inside www.DramasticAudio.com SIDE-CHAIN INPUT FUSE PIN 1: Gnd PIN 2: Hot PIN 3: Cold 115/230V 50/60Hz AC FUSE 1 AMP Power Fuse Side-Chain Input Standard 3-pin IEC power 3AG Fast Blow Fuse.

  • Page 11: Rear Panel View

    Rear Panel View Input Output Audio Input Audio Output XLR Transformer balanced, XLR Transformer balanced, TXIO Enhanced™. TXIO Enhanced™.
  • Page 12 Do not defeat the purpose of this grounding-type plug. Always grasp the plug body when connecting or disconnecting it. Voltage Select Switch The Obsidian™ can be configured for either 110 or 220 volt operation. To change the voltage, use a narrow flat bladed screwdriver to adjust the voltage setting. Fuse 1 A for 110v operation 0.5 A for 220v operation...

  • Page 13: Connections

    Obsidian User’s Manual Connections REAR PANEL CONNECTIONS XLR Input L – R These are the input connectors for the left and right channel audio signals. The inputs are TXIO Enhanced™ which provides transformer balanced inputs. Pin 1: GND Pin 2: Hot Pin 3: Cold XLR Output L –...
  • Page 14 Obsidian User’s Manual COMPRESSION Attack Meter Threshold Ratio The meter shows the amount of This sets the level above which Compression ratio is selectable The attack range is selectable from gain reduction in db scaled from 0 signals will be compressed. There from 2:1, 4:1, 8:1, 10:1, 12:1 db to 20 db.

  • Page 15: Front Panel View

    Front Panel View EXTERNAL RELEASE - S MAKEUP POWER COMPRESSOR SIDE-CHAIN Auto Lo-Fi Release Makeup Compressor IN Power The release range is Makeup is the final output gain When pressed in (Illuminates Switches the AC power to the unit selectable from adjustment.

  • Page 16: Front Panel Controls

    Obsidian User’s Manual Front Panel Controls FRONT PANEL CONTROLS Meter The meter shows the amount of gain reduction in db scaled from 0 db to 20 db. The meter illuminates “blue” to allow for easy viewing in dimly lit rooms.
  • Page 17 Obsidian User’s Manual Front Panel Controls FRONT PANEL CONTROLS Release The release range is selectable from 0.1, 0.3, 0.6, 1.2 Sec., Auto, and LoFi. The release control adjusts the time it takes the compressor to return to unity gain after going into compression. In Auto mode, the release time is dependent on the duration of the signal peak. LoFi is a program dependent distortion mode.
  • Page 18 Obsidian User’s Manual Front Panel Controls FRONT PANEL CONTROLS External Side-Chain IN When pressed in (Illuminates Blue), the external side-chain input XLR connector on the rear panel is engaged. This allows you to “Key” the compressor from an external signal rather than the program material itself. Although the input is mono, it affects the left and right channels equally.

  • Page 19: Limited Warranty

    Limited Warranty Dramastic Audio Corp. warrants this product to be free of defects in material and workmanship for a period of 1 year from the original date of purchase. This warranty is valid only for the original purchaser and is non-transferable. This warranty only applies to products sold in the United States of America.

  • Page 20: Technical Specifications

    Obsidian User’s Manual Technical Specifications Analog Input Connectors: XLR balanced (pin 2 hot) Impedance: 10k ohms (transformer balanced) Analog Output Connectors: XLR balanced (pin 2 hot) Max Output: +24dbu (above 0dbu with 1% THD ) +23.7dbu (onset of clipping) Noise: <...
  • Page 22 Dramastic Audio, Obsidian, And TXIO Enhanced are trademarks or registered trademarks in the US and other countries. Copyright ©2006, Dramastic Audio Corp. www.DramasticAudio.com All Rights Reserved. Part No. 07-0007...