Heritage Audio
8173 80 Series EQ Module
Additional Photos:
The unit supports selectable HI-LO minimum balanced and floating input impedances that accommodate a range of microphone types including vintage ribbons. It includes a +/-16 dB selectable low-frequency Baxandall shelving EQ at 35 Hz, 60 Hz, 110 Hz, and 220 Hz. For lower middle frequencies, the unit includes a 1081 inductor-based +/-18 dB peaking fixed 'Q' equalizer with center frequencies at 220 Hz, 270 Hz, 330 Hz, 390 Hz, 470 Hz, 560 Hz, 680 Hz, 820 Hz, 1000 Hz, and 1200 Hz. For upper middle frequencies, the unit includes a 1081 inductor-based +/-18 dB peaking fixed 'Q' equalizer with center frequencies at 1500 Hz, 1800 Hz, 2200 Hz, 2700 Hz, 3300 Hz, 3900 Hz, 4700 Hz, 5600 Hz, 6800 Hz, and 8200 Hz.
An 18 dB per octave slope inductor-based high pass filter push-button switch allows you to cut below 50 Hz, 80 Hz, or 300 Hz depending on the application. An EQ button allows for the equalizer to be turned on or off and a phase button allows you to flip the signal 180⁰.
Features
• 80dB Class A Microphone preamplifier, HI-LO selectable minimum input impedance, balanced and floating. High gain positions show a higher impedance, ideal for old ribbon mics.
• 10dB Class A Line Amplifier, Bridging input impedance, balanced and floating.
• Class A, single ended, 2N3055 driven high headroom output stage.
• High Frequency: +/-16dB shelving at 12 kHz, Baxandall type.
• Low Frequency: +/-16dB with selectable frequency shelving of 35Hz, 60Hz, 110Hz & 220Hz, Baxandall type.
• 1081 Upper Mid Frequency: +/-18dB peaking, fixed Q , selectable centre frequencies of 1.5Khz, 1.8kHz, 2.2Khz, 2.7kHz, 3.3Khz, 3.9kHz, 4.7kHz, 5.6kHz , 6.8kHz and 8.2Khz, inductor based.
• 1081 Lower Mid Frecuency: +/-18dB peaking, fixed Q, selectable center frecuencies of 220Hz, 270Hz, 330Hz, 390Hz, 470Hz, 560Hz, 680Hz, 820Hz, 1000Hz and 1200Hz, , inductor based
• High Pass Filter: 18dB per octave slope, switchable between 50Hz, 80Hz, 160 Hz & 300Hz, inductor based.
Controls
Input Gain Switch - 5dB steps from 20 to 80 in MIC mode. -10 to 20dB in LINE mode
High Shelf - 10, 12, and 16 Khz
Hi Mid Peak Band - 8.2, 6.8, 5.6, 4.7, 3.9, 3.3, 2.7, 2.2, 1.8, 1.5 KHz
Lo Mid Peak Band - 1200, 1000, 820, 680, 560, 470, 360, 330, 270, 220 Hz
Bass Shelf - 220, 110, 60 and 35 Hz
High Pass Filter - 300, 160, 80, 50 Hz
EQL - Switch Equalizer on/off
Phase - Flip Phase 180⁰
Specifications
Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is transformer balanced and floating.
Line input impedance: 10KOhms bridging, transformer balanced and floating.
Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.
Maximum output: Greater than +26dBm into 600 Ohms, greater than +32dBu into 10KOhms.
THD: Less than 0.025% at 1Khz, Less than 0.05% at 100Hz.
Frequency response: 20Hz (+0.3dB) to 20Khz (-0.2dB).
Maximum Gain: Slightly greater than 80dB.
Noise: Less than -100dBu.
Power consumption: < 110 mA @24VDC.
Q & A
Reviews
Protect your investment with the Long & McQuade Performance Warranty
A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.
Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.
How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
- Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
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Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.
Purchasing additional years of coverage
Some manufacturers provide warranties for longer than 1 year; however, these are usually limited warranties that do not provide the same coverage as the Long & McQuade Performance Warranty. Customers interested in more complete and convenient (but not necessarily longer) coverage are still able to purchase additional years of the Performance Warranty.
If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:
- NEW products: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.
- USED products: 4% of the current new selling price to increase the warranty from 3 months to 1 year. 4% for each additional year.
- GUITARS: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year. $45 maximum. An additional free setup is not included with additional purchased years of Performance Warranty.
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| Product | SKU | Qty |
|---|---|---|
| 8173 80 Series EQ Module | 721429 |
