Heritage Audio HA-73EQ Channel Strip

Heritage Audio HA-73 EQ - Elite Series Mic Preamp and Equalizer

The Heritage Audio HA-73 EQ Elite is an exceptional mic preamp and equalizer that marries the essence of vintage sound with modern manufacturing techniques. It's part of the Elite Series, known for its high-quality yet affordable audio solutions. This model is crafted to the same rigorous specifications as the acclaimed 73 JR II, 73 EQ JR, and DMA 73 Heritage Audio models but offered at a groundbreaking price.

Key Features:

• Vintage Sound Quality: Integrates key components like Carnhill transformers, hand-wound in St Ives, England, ensuring a true vintage audio experience.
• Modern Manufacturing: Combines mass production and lean manufacturing to minimize hand labor costs, making it affordable without compromising quality.
• Classic EQ Curves: Uses WIMA 5% capacitors and “Vinkor“ pot core inductors for authentic equalization curves and minimal phase distortion.
• Robust Preamp Section: Features gain, output trim, -20 dB pad, polarity reverse, a high pass filter, and +48V phantom power.
• Versatile EQ Section: Includes high shelving, midrange peak, and low shelving EQ, along with a variable high pass filter and an EQ bypass function.
• Durable Construction: Housed in a sturdy 1RU British steel and aluminum chassis, utilizing an external power supply for low noise operation.

Specifications:

• Mic Input Impedance: HI=1200 Ω, LO=300 Ω; higher gain settings offer greater impedances for low gain mics.
• Line Input Impedance: 10 kΩ, transformer balanced and floating.
• Output Impedance: <75 Ω, capable of driving a 600 Ω load.
• Maximum Output Level: >+26.5 dBu into 600 Ω.
• THD: <0.025% at 1 kHz, <0.05% at 100 Hz.
• Frequency Response: 20 Hz to 20 kHz (+0.3 dB / -0.2 dB) with EQ off.
• Maximum Gain: >80 dB.
• Noise Levels: Equivalent Input Noise < -125 dBu; Output stage noise < -100 dBu.
• Power Consumption: <95 mA @ 48 V DC.

Designed and built in Spain, the Heritage Audio HA-73 EQ Elite is a testament to Heritage Audio's commitment to providing professional-grade audio gear that's both accessible and uncompromising in quality.