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Review Summary
Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500
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High: +/-16dB selectable frequency shelving at 10, 12 or 16 kHz, Baxandall type
Low: +/-16dB with selectable frequency shelving of 35Hz, 60Hz, 110Hz & 220Hz ,Baxandall type
1081 Upper Mid: +/-18dB peaking, fixed 'Q' , selectable center 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: +/-18dB peaking, fixed 'Q', selectable center frequencies of 220Hz, 270Hz, 330Hz, 390Hz, 470Hz, 560Hz, 680Hz, 820Hz, 1000Hz and 1200Hz, , inductor based
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
10KOhms bridging, transformer balanced and floating
Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms
Greater than +26dBm into 600 Ohms, greater than +32dBu into 10KOhms
Less than 0.025% at 1Khz, Less than 0.05% at 100Hz
20Hz (+0.3dB) to 20Khz (-0.2dB)
Slightly greater than 80dB
Less than -100dBm
110 mA at 24VDC
1.77 x 12.2 x 8.74" / 44.96 x 309.88 x 222.00mm
5.1lbs / 2.31kg
639713908220
Over the years, Heritage Audio has been a trusted name in the audio industry, known for their high-quality, professional, and reliable audio equipment. The 8173 Microphone Preamplifier Module is no exception. This innovative and versatile module is a testament to their commitment to superior sound and durability.
In 1972, the 1081 emerged as the most flexible equalizer ever incorporated into a mixing console. Its unique 4-band equalizer allowed for unprecedented sound sculpting, largely due to its mid bands covering almost the entire audio spectrum in 20 steps. However, its class A/B output stage was a step down from the class A used in the 1073, making the latter a preferred choice for tracking.
For two decades, audio professionals have pondered the possibility of a 1081 equalizer with a 1073 preamp in their console. The answer was always a resounding 'no' until the introduction of the 8173 Microphone Preamplifier Module. This module combines the best of both worlds in an 8 3/4" package, fully compatible with Series 80 consoles.
The 8173 can be aptly described as a 1073 preamp with the mid bands of the 1081. Heritage Audio has wisely retained the 1073 Baxandall shelving low and high equalizer bands due to their exceptional sound quality. However, they have added a choice of 3 high shelving frequencies, reminiscent of the 1084. This combination of features provides unparalleled flexibility and tone, making the 8173 Microphone Preamplifier Module a standout choice for any professional audio setup.