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HA-609A QUICK START GUIDE
This is a quick start guide on using the HA-609A dual compressor/limiter unit.
For more info on it or more tips on how to use the unit, please check
www.heritageaudio.net
often, and make sure to follow Heritage Audio on
Facebook, Instagram and You Tube.
Dec 2nd, 2019
Rev. 1.0.
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Summary of Contents for Heritage Audio HA-609A
- Page 1 HA-609A QUICK START GUIDE This is a quick start guide on using the HA-609A dual compressor/limiter unit. For more info on it or more tips on how to use the unit, please check www.heritageaudio.net often, and make sure to follow Heritage Audio on Facebook, Instagram and You Tube.
- Page 2 3 to ground. The HA-609A is able to accept input levels in excess of those that any interface can provide, so the chance that its input is overloaded is rare.
- Page 3 Therefore, there is a total of no less than 6 Carnhill/St Ives transformers per unit, 3 per channel and tone for days. Unlike vintage diode bridge designs, the HA-609A has dual attack times both in the compressor and limiter sections and expanded threshold and limit level ranges that easily accommodate the hotter modern input signals.
- Page 4 CONNECTION FEATURES The HA-609A has the following connections: • INPUT L: Transformer balanced, accessible on an XLR connector. • INPUT R: Exactly as Input L. • OUPUT L: Transformer balanced, ´73 type class A amp driven, accessible on an XLR connector.
- Page 5 AN APPROACH TO USING THE HA-609A Using the HA-609A in the manner explained above will give you instant gratification, however the unit is far more powerful. Playing around with ATTACK and RELEASE settings will change the sound by A LOT.
- Page 6 • LIMIT IN: Activates the limiting section. If audio level is below the set limit level, it does not actuate. If it exceeds the limit level, it is limited at the limit level. • COMPRESSION THRESHOLD: With an extended range from +20dBu (all clockwise) to -20dBu (all counterclockwise) on a stepped precision potentiometer.
- Page 7 TECHNICAL SPECIFICATIONS • Maximum input level: Over +22 dBu. • Maximum output level: Over +26.5 dBu into 600 ohms. • Self-Noise: Less than -75dBu 20Hz-20Khz. -80dBu A-weighted. • THD+N (50Hz- 20Khz): not engaged, less than 0.07% at +20dBu. • Frequency response, COMPRESS and LIMIT OUT, +- 0.5dB, 15Hz- 30Khz.
- Page 8 LIMITED 2 YEAR WARRANTY Heritage Audio HA-609A is warranted by Heritage Audio SL to be free from defects in materials and workmanship for the period of 2 years to the original purchaser. In the event of such defects, the product will be repaired without...
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