Dramastic Audio Obsidian Stereo Compressor

Dramastic Audio

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Product Code: 1490
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The Dramastic Obsidian Stereo Compressor not only delivers all of the classic tone of the 'standard' console buss VCA compressor, but it heaps on a ton of luscious feed-forward compression refinement, a completely overbuilt worldwide power supply, premium Jensen TXIO transformer interface, lots of useful new features like internal side-chain HPF in addition to other sidechaining options, and attention to maintaining incredible tone without compromise. The Dramastic Obsidian should definitely be one of your goals to have on your stereo buss!

The Dramastic Obsidian stereo buss compressor is not just another VCA-Based clone of the "G series" compressor. Why copy when you can make something great into something truly spectacular?

Heralded by many producers and engineers, the Obsidian is often referred to as the best sounding buss-comp it it's class, and is even chosen and requested over the original G-series compressor, itself. The innovative design, expanded feature set, and the all-important unique input and output transformer use in it's signal path culminate in making the Dramastic Obsidian such a beloved conduit in the stereo buss chain. The dynamic impact, punch, and "glue" that you love about that classic 4000 console sound - along with the addition of incredible sonic depth and range that other VCA comps fall flat on - makes this the VCA buss compressor to own. The Obsidian is described as having "Logic Smack" with 33609 tone!

The Obsidian is a feed-forward VCA style stereo compressor featuring transformer balanced I/O, electronically balanced external side-chain input, internal high pass filter and precision stepped controls to accurately recall settings.

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” engaged on the detection circuitry]. For even greater control, an “External Side-Chain” input is available and may be used in conjunction with the “High Pass Filter.”

Six ratio settings are available from a subtle 2:1, to a bone crushing "Skull and Crossbones" symbol. Six attack, and six release settings further complement the Obsidian making it extremely versatile on many different types of program material. Employing the “Auto” release time gives the audio a smooth rich texture without any pumping and breathing. From there, if you have decided that the audio is a little too smooth for the application, a simple click of the release switch to the “Lo-Fi” setting will net all the “IN YOUR FACE” aggression one may desire. Try it on a drum sub-mix! Overall, the clarity, performance and musicality of the Obsidian is unparalleled. The Obsidian is hand crafted in the USA using the finest quality precision components available.

TXIO Enhanced
TXIO is a transformer balanced input / output interface which gives the Obsidian it's unique character. The TXIO interface provides a “phat” classic analog sound allowing the Obsidian to add warmth, depth and character to digital audio workstations. Specifically designed for the Obsidian, the TXIO interface is a collaboration between Dramastic Audio and Jensen Transformers.

Dramastic Obsidian Stereo Compressor Features

  • VCA Feed-forward compression
  • TXIO enhanced transformer balanced I/O
  • Precision stepped controls (for accurate recall)
  • Balanced inputs and outputs
  • XLR Side-Chain input
  • Internal high-pass filter
  • Superior imaging

Dramastic Obsidian Stereo Compressor Specifications

  • Ratio settings: 2:1, 4:1, 8:1, 10:1, 12:1, and Skull (20:1)
  • Attack control range: 0.1, 0.3, 0.6, 10, and 30 (mSec)
  • Release control range: 0.1, 0.3, 0.6 1.2 (sec), Auto, and Lo-Fi
  • Makeup Gain output: 12dB
  • Power Supply: Universal Worldwide PSU
    • 110 Volt operation: 1 A fuse for 110v operation range
    • 220 Volt operation: 0.5 A fuse for 220v operation range
  • Analog Input
    • Connectors: XLR balanced (pin 2 hot)
    • Impedance: 10k ohms (transformer balanced)
  • Analog Output
    • Connectors: XLR balanced (pin 2 hot)
    • Impedance: 600 Ohms Transformer Balanced
    • Max Output:
      • +24dbu (above 0dbu with 1% THD )
      • +23.7dbu (onset of clipping)
    • Noise:
      • < -86dbu in bypass
      • < -80dbu with compressor IN
    • THD:
    • .005% @ 1kHz
    • IMD:
      • In Bypass: .054%
      • With compressor IN and no compression: .069%
    • Freq. Response: 10Hz to 50kHz
      • @ 10Hz – 0.04db
      • @ 20kHz – 0.36db
    • Crosstalk: Measured referenced to +20dbu
      • -109db @ 1kHz
      • -73db @ 20kHz
  • Side-Chain Input
    • Connectors: XLR balanced (pin 2 hot)
    • Impedance: >20k ohms (electronically balanced)
    • HPF: 125Hz 12db/octave
  • General
    • Finish: Black / Painted
    • Chassis: 2 piece cold rolled steel
    • Chassis Ground: 5-way binding post
    • Dimensions: 19” x 1.75” x 8”
    • Weight: 8 lbs 5oz
    • AC Power:
      • 115 / 230 VAC 50 – 60Hz
      • 3 Pin IEC power connector

Dramastic Obsidian Stereo Compressor Includes

  • Dramastic Obsidian Stereo Compressor
  • IEC Power Cable
  • Manual & Literature
  • 1 year limited warranty

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What We Think


Without question, the Dramastic Obsidian Stereo Compressor is THE classic feed-forward VCA buss compressor to own. You get ALL of the sound (and frankly, an arguably better sound at that, over the original) together with all of the features you need, such as the High-Pass Sidechain (keeps the lows from dominating the detector circuit, thus keeping life abundant within your mix or submix), precision stepped controls for accurate recall, TXIO transformer I/O balancing and tonal enhancement (a collaboration with Jensen transformers), and a strong commitment to the audio image and fidelity. All of the "grabby" goodness that the old classic VCA feed-forward inspiration is known for, the Dramastic Obsidian delivers with insurmountable reinforcements of improvement.

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