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User Manual for Heritage Audio 73EQ JR - 500 Series EQ Click to enlarge the picture
Contents of the user manual for the Heritage Audio 73EQ JR - 500
- Product category: Equalizers Heritage Audio
- Brand: Heritage Audio
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Heritage Audio Equalizers
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User manual for the Heritage Audio 73EQ JR - 500 contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Heritage Audio product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Heritage Audio user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Heritage Audio product will considerably shorten its lifespan!
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Product description The 500 Series Guide to Equalizers Read More Designed for 500 series rack enclosures, the Heritage Audio 73EQ JR is a full-featured line input module that shares the 3-band equalizer, the transformer-coupled line preamplifier, and the Class A transformer-balanced output stage of the classic 1073 module. This combination allows the module to capture a full transformer-based Class A sound without the need for external preamps.
The equalizer section of the module features the same Baxandall-type high and low shelf filters found on the 1073, but with the addition of a high frequency selector switch. You can select four different frequencies of 10, 12, 16 or 20 kHz. The low frequency shelving EQ has a selectable frequency of 35, 60, 110, or 220 Hz. The mid frequency has a dual inductor-based ±18 dB peaking filter with a fixed Q and selectable center frequencies of 0.36, 0.7, 1.6, 3.2, 4.8, and 7.2 kHz. An EQL button allows for the equalizer section to be turned off and on.
The output stage is a Class A singled-ended design driven by a 2N3055 high headroom amplifier. To improve the performance of the module within a 500 series enclosure, the unit utilizes an internal slow turn-on +24V power supply for lower inrush current. The module is finished with Carnhill transformers and Marconi-style knobs for a classic tone and user interface experience. -
- +6 to -20 dB Class A Line preamplifier, bridging input impedance, balanced and floating
- High Frequency: +/- 16 dB shelving, selectable at 10, 12, 16 or 20 kHz, Baxandall type
- Low Frequency: +/- 16 dB shelving, with selectable frequency of 35, 60, 110 or 220 Hz, Baxandall type
- Mid Frequency: +/- 18 dB peaking, fixed Q, selectable center frequencies of 0.36, 0.7, 1.6, 3.2, 4.8 and 7.2 kHz, dual inductor-based
- EQL button: Turns EQ on
- Class A single-ended, 2N3055 driven, high-headroom output stage
- Internal Slow Turn-on +24V power supply for lower inrush current, improving lunchbox performance
- Carnhill Transformers
- Marconi-style knobs
UPC: 638142858922 In the Box Heritage Audio 73EQ JR - 500 Series EQ Limited 1-Year Warranty Table of Contents
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Technical parametersHeritage Audio HA73EQJR Specs | Input Impedance | 10 kOhms bridging, transformer balanced and floating | | Output Impedance | Less than 75 ohms, transformer balanced and floating, to drive a 600 ohm load | | Maximum Output | Greater than +26 dBu into 600 ohms | | THD | Less than 0.025% at 1 kHz, less than 0.05% at | | Maximum Gain | 6 dB | | Power Consumption | Less than 85 mA per rail at ±16 VDC | | Rack Size | 1 RU of 500 series | | Dimensions (H x W x D) | 5.25 x 1.50 x 5.94" (13.34 x 3.81 x 15.09 cm) | | Weight | Not specified by the manufacturer |
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