IGS Audio Alter 500
IGS Audio Alter Comp 500
IGS Audio Alter Comp 500
IGS Audio Alter Comp 500
IGS Audio Alter 500
IGS Audio Alter Comp 500
IGS Audio Alter Comp 500
IGS Audio Alter Comp 500
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IGS Audio Alter Comp 500

500 Series FET Compre

500 Series Mono Fet Compressor.

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CAP2: 0 £659.00 £549.17 ex VAT

AVAILABLE TO ORDER

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WHY CHOOSE TO BUY FROM KMR AUDIO?

  • 22+ Years Industry Experience
  • Rated “Excellent” By Our Customers
  • Lifetime Tech Support, Always Free
  • Easy 14 Day Returns

The IGS Audio Audio ALTER 500 is a FET compressor built in the 500 standard. The FET-type solution was used for the first application in the legendary UREI 1176 compressor from the 70s.

The ALTER is a single-channel unit with stepped input and output controls. The Ratio switch has six positions, including two additional to the original 1176 1:1 and 2:1 settings. Slam Mode can be turned on with a separate switch, working regardless of the Ratio settings. Attack and release times can be set to Fast / Mid / Slow with 3-pole switches. The compressor is equipped with a relay bypass, achieved on the front panel. The input is balanced with a modern, low-noise op-amp and the output with a Carnhill transformer. The circuit has two amp stages, between which is the output control. The stage amps are based on the discreet API2520 circuit. The level of gain reduction is shown by a 30 point led bar.

Front panel:

  • 1. Input - Input level and compression depth
  • 2. Output - Output Level
  • 3. Attack - Variable Attack - 3 ranges: 0.02, 0.2 and 0.8 ms.
  • 4. Release ‚Äì Amp recovery time to the value of 0.85 max. Range: 50ms, 600ms, 1.5 sec.
  • 5. Ratio - compression ratio over the threshold response.
  • 6. Ratio ranges: from 1:1 (line amp), through 4:1 (compressor) to 20:1 (limiter)7. SLAM - allows the enabling of All-Buttons-On - the "secret weapon" of any studio engineers ;)
  • 8. COMP IN / OUT - Enable Bypass relay device
  • 9. GR - very fast LED indicator showing the compression level in the range from 0 to 30dB.

Specifications:

  • API 500 standard Module,
  • Input impedance: 1kOhm,
  • Output impedance: 600Œ© on Carnhill- Maximum input level: +20 dBu,
  • Maximum Output Level: +22 dBm,
  • Total Harmonic Distortion: 0.2%,
  • Frequency response: +/- 0.1 dB 20Hz to 20kHz,
  • Gain: 40dB- The signal to noise ratio: greater than 99 dB- Attack: 0.02, 0.2 to 0.8 ms,
  • Release: 50ms, 600ms, 1.5 s,
  • Power supply: + / - 16V,
  • Dimensions: 132x37x158mm
  • Weight: 700g.
DPD UPS
  • UK over £99 FREE
  • UK under £99 £10
  • EU £36
  • Rest of World £80

Large/Heavy items: Extra charges may apply (e.g., consoles, large monitors). We’ll contact you before processing if so.

We ship with DPD and UPS across the UK, EU and worldwide. Same-day within the M25 is available depending on stock.

This item, like everything we supply, comes with the complete support of our expert team. Our excellent technicians have been specifying, building and supporting studios for over twenty years. If you have any problems with installation, setup or everyday use, they’re never more than a click away, and always happy to help.

You can contact them here.

IGS Audio Alter Comp 500

IGS Audio Alter Comp 500

AVAILABLE TO ORDER

KEY BENEFITS

Versatile Compression Settings

The IGS Audio ALTER 500 features a six-position ratio switch, offering settings from 1:1 to 20:1, which allows users from subtle leveling to aggressive limiting.

Advanced Dynamic Control

With three selectable attack times (0.02, 0.2, and 0.8 ms) and three release times (50ms, 600ms, 1.5 sec), the ALTER 500 provides precise dynamic control for any audio material.

Professional Sound Quality

The ALTER 500 uses a Carnhill transformer and a low-noise op-amp in its input stage, ensuring high fidelity and minimal noise in audio signal processing.