Technics SH-9010
5-Band Parametric Equalizer (1976 ~ 1981)
Technics SH-9010 Parametric Equalizer. bigger. I got mine at eBay (How to Win at eBay).
This all-content, junk-free website's biggest source of support is when you use this link to it at eBay or any of these links to approved sources when you get anything, regardless of the country in which you live. Thanks for helping me help you! Ken.
Technics SH-9010 Parametric Equalizer. bigger.
Technics SH-9010 Parametric Equalizer. bigger.
Technics SH-9010 Parametric Equalizer. bigger.
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Introduction top
This is an unusually high-quality parametric equalizer for Hi-Fi, audiophile and other home uses.
Its advantage over professional studio parametric equalizers like the Rane SP-15 are that the levels and connectors of this SH-9010 are optimized for home use, while the studio equalizers use different connectors and potentially have more noise at home audio levels because studio units are optimized for higher audio levels of +4 dBu (or more) rather than -10 dBu Hi-Fi level.
Equalizers are musical instruments best used by professional audio engineers, and parametric equalizers are even more difficult for a consumer to understand than a simple graphic equalizer.
This EQ can do wonders voicing your room or speakers, as well as tune your woofers and subwoofers.
It is better than a graphic EQ for any of this because its frequencies can be tuned precisely as you need it.
Specifications top
Input
1 V, 47 kΩ.
Gain
0 ±1 dB
Output
1 V typ, 5V max from a 300Ω source impedance.
Frequency Response
10 - 20,000 Hz +0, -0.2 dB
10 - 70,000 Hz, +0, -2 dB.
SNR
90 dB.
Bandwidths
Q = 0.7 ~ 7.0.
Power Consumption
8W.
Size
2 RU, rack mount:
3 31/32 high x 19" wide x 14 11/32" deep.
101 x 482 x 364 mm.
Weight
13.2 lb (6.0 kg).
Measurements top
Here are my laboratory measurements made with the extraordinary Rohde & Schwarz UPL laboratory audio analyzer, an actual laboratory instrument and not just a sound card or software. Colored lines are for the Left Channel and for the Right Channel. When they don't lie on top of each other and turn blue, it's due to channel imbalance:
Technics SH-9010 Frequency Response, EQ Out (bypassed on front panel). greatly expanded vertical scale.
+0, -0.2 dB from 13 ~ 20,000 Hz, with channel balance within ±0.1 dB. Swell.
Technics SH-9010 Frequency Response, EQ Active and set flat. greatly expanded vertical scale.
Perfect; +0.1, -0.2 dB from 13 ~ 20,000 Hz and ±0.2 dB channel balance.
This is great; at center detents this EQ is flat, as it should be, but equalizers often aren't.
Technics SH-9010 Infrasonic Frequency Response.
-3 dB at two cycles, perfect.
Technics SH-9010 High Frequency Response, expanded vertical scale.
±0.2 dB to 50 kc and -3 dB at 82 kc, perfect.
Technics SH-9010 THD at 1 volt RMS.
Vanishingly low distortion, as it should be, but sadly modern HiFi gear is rarely as good as this classic equalizer.
Technics SH-9010 THD at 1 volt RMS, all sliders at +12 dB.
YES! Even set to extreme positions, distortion remains vanishingly low. Bravo!
Technics SH-9010 THD versus level, EQ Off (bypassed on front panel).
Perfect; even at 2 mV distortion is only 0.1%.
Technics SH-9010 THD versus level, EQ ON (active).
Even with EQ ON, distortion is again only 0.1% at 2 mV. Bravo!
Technics SH-9010 Frequency Response, center slider tuned to 1 kHz and set to +12 dB with bandwidth control at minimum.
Technics SH-9010 Frequency Response, center slider tuned to 1 kHz and set to +12 dB with bandwidth control at the center.
Technics SH-9010 Frequency Response, center slider tuned to 1 kHz and set to +12 dB with bandwidth control at maximum.
Technics SH-9010 Frequency Responses, center slider tuned to 1 kHz and set to +12 dB with bandwidth control at each marking (±5).
Technics SH-9010 Frequency Responses, 1 kHz control set each of its frequency markings (marked 330 Hz to 3 kHz) at +12 dB with bandwidth control at minimum.
Technics SH-9010 Frequency Responses, 60 Hz control set each of its frequency markings (marked 20 Hz to 180 Hz) at +12 dB with bandwidth control at minimum.
Technics SH-9010 Frequency Responses, 60 Hz slider set to its lowest frequency and set to +12 dB with bandwidth control at each marking (±5).
Yes! The 60 Hz control actually sets as low as 18 Hz!
Recommendations top
This is a great equalizer from the glory days of high fidelity. It is probably the greatest practical parametric equalizer made for general Hi-Fi use, and is wonderful for voicing and optimizing bass response.
Its controls will probably need cleaning with your favorite cleaner; mine certainly did.
I got mine at eBay (How to Win at eBay). Expect to pay $100 for a very beat-up sample missing knobs, and about $400 for one still in its box.
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