Elite Series HA-73 EQ - Receiver Heritage Audio - Free user manual and instructions
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| Product Type | Microphone Preamplifier with Equalizer |
| Model | Elite Series HA-73 EQ |
| Brand | Heritage Audio |
| Channels | 1 |
| Frequency Response | 20 Hz - 20 kHz (±0.5 dB) |
| Gain Range | Up to 80 dB |
| EQ Type | 3-band: High, Mid, Low (inductor-based) |
| High-Pass Filter | 80 Hz, 18 dB/octave |
| Phantom Power | +48 V, switchable |
| Phase Reverse | Yes, switchable |
| Input Impedance | Mic: 1.2 kΩ, Line: 10 kΩ |
| Output Impedance | 75 Ω |
| Maximum Output Level | +26 dBu |
| Power Supply | External 24 V DC adapter (included) |
| Dimensions (W x H x D) | 483 x 44 x 200 mm (19" rack, 1U) |
| Weight | 3.5 kg |
| Construction | Steel chassis, aluminum faceplate |
| Cleaning Instructions | Wipe with a soft dry cloth; avoid solvents |
| Safety | Do not expose to moisture; disconnect power when not in use |
| Spare Parts Availability | Contact Heritage Audio or authorized dealers |
| Repairability | Serviceable by qualified technicians only |
| Warranty | 2 years limited warranty |
Frequently Asked Questions - Elite Series HA-73 EQ Heritage Audio
What type of microphone does the HA-73 EQ support?
The HA-73 EQ supports dynamic and condenser microphones via XLR input, with selectable +48V phantom power.
Can I use line-level instruments with the HA-73 EQ?
Yes, the unit has a line input on the rear panel for line-level sources such as synthesizers or audio interfaces.
How do I connect the external power supply?
Connect the included 24V DC adapter to the power input on the rear panel. Ensure the unit is powered off before connecting.
What is the purpose of the high-pass filter?
The high-pass filter (80 Hz, 18 dB/octave) removes low-frequency rumble and unwanted bass, cleaning up the signal.
How do I adjust the EQ?
The HA-73 EQ features three bands: Low (60 Hz), Mid (360 Hz, 700 Hz, 1.2 kHz, 4.8 kHz selectable), and High (12 kHz). Each band has ±15 dB boost/cut.
Can I rack-mount the unit?
Yes, the HA-73 EQ is designed as a 19-inch rack unit, 1U height. It includes rack ears for mounting.
What should I do if the unit does not power on?
Check the power connection and ensure the external adapter is plugged into a working outlet. If the issue persists, contact Heritage Audio support.
Is the HA-73 EQ compatible with 500-series racks?
No, this unit is a standalone 19-inch rack device, not a 500-series module.
How do I clean the front panel?
Use a soft, dry microfiber cloth to gently wipe the faceplate. Avoid using any liquids or abrasive cleaners.
Where can I find a user manual?
The user manual is available for free download in PDF format from notice-facile.com or the Heritage Audio official website.
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USER MANUAL Elite Series HA-73 EQ Heritage Audio
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Product information
Brand : Heritage Audio
Model : Elite Series HA-73 EQ
Category : Receiver