Logitech Z-5500 Equalizer APO settings for much improved sound quality - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 02-15-2018, 09:58 PM - Thread Starter
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Logitech Z-5500 Equalizer APO settings for much improved sound quality

For anyone who has a failed control pod and is using a replacement cable from eBay, you'll probably notice that the subwoofer does not work with just the green jack. This is because the speakers are now directly taking the signal from the cable without processing (i.e., take bass from all channels and give it to the sub)

Here's an equalizer APO setting I made for the Z-5500 to get it working again. This not only does the bass redirection to the subwoofer, but it also corrects the response of the speaker. I thought it would be fun to see how much I can improve the Z-5500's sound quality by EQ'ing away the flaws of the speakers. In short, it is actually remarkable how much better the speakers sound when the right equalization is applied. Let me know how it works out for you. If you have a working Z-5500, and just want to try out the EQ, then just ignore the SUB part of the script.

Copy: SUB=L+R+C+RL+RR
Channel: SUB
Preamp: -8 dB
Filter: ON LP Fc 100 Hz

Channel: L

Filter 1: ON HP Fc 150 Hz
Filter: ON HS Fc 7000 Hz Gain 3 dB
Filter: ON PK Fc 2000 Hz Gain -15 dB Q 4
Filter: ON PK Fc 1000 Hz Gain -5 dB Q 2

Channel: R

Filter 1: ON HP Fc 150 Hz
Filter: ON HS Fc 7000 Hz Gain 3 dB
Filter: ON PK Fc 2000 Hz Gain -15 dB Q 4
Filter: ON PK Fc 1000 Hz Gain -5 dB Q 2

Channel: C

Filter 1: ON HP Fc 150 Hz
Filter: ON HS Fc 7000 Hz Gain 3 dB
Filter: ON PK Fc 2000 Hz Gain -15 dB Q 4
Filter: ON PK Fc 1000 Hz Gain -5 dB Q 2

Channel: RL

Filter 1: ON HP Fc 150 Hz
Filter: ON HS Fc 7000 Hz Gain 3 dB
Filter: ON PK Fc 2000 Hz Gain -15 dB Q 4
Filter: ON PK Fc 1000 Hz Gain -5 dB Q 2

Channel: RR

Filter 1: ON HP Fc 150 Hz
Filter: ON HS Fc 7000 Hz Gain 3 dB
Filter: ON PK Fc 2000 Hz Gain -15 dB Q 4
Filter: ON PK Fc 1000 Hz Gain -5 dB Q 2
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post #2 of 4 Old 04-19-2018, 07:59 AM
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calibration settings are room dependent also it depends on speaker position.

Dolby Atmos 7.1.2
Front: L/R JBL Studio 2 290, Center JBL Studio 2 235C
Surround and Overhead: Klipsch Quintet 5
AVR: Marantz SR-6010. Preout: Emotiva Basx A700 80W per channel (Front+Surrounds)
TV: 55" Samsung 2015 SUHD JS8500 4K HDR
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post #3 of 4 Old 12-01-2019, 01:42 PM
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Please can you share the file? So i can import it to APO?
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post #4 of 4 Old 12-01-2019, 06:27 PM
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Mate, can you explain more in detail, or share the config file so i can import it? I don't understand what those things mean like "HS-FC-PK-HP"
See my attached image.

My z5500 is working with sub. I just want it to sound much better, so i really want to try your settings.
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