2015 CLS400 H/K Logic 7... subpar performance

Jun 8, 2019 | 03:05 AM

Jambert Corpus

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Junior Member

Joined: May 2019

Posts: 74

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From: Sacramento

CLS400

2015 CLS400 H/K Logic 7... subpar performance

Hello everyone,

I am unhappy with the stock sound system, just doesn’t sound like a quality system.

does anyone have the same experience?

My good friends 2019 Infiniti Q60 coupe with Bose sound 100x better

Doesnt sound like my speakers are blown, just doesn’t sound good.

Any and all feed back would be appreciated

Jun 8, 2019 | 04:53 PM

chassis

Out Of Control!!

Joined: Sep 2018

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From: unbegrenzt

2017 GLE350 4MATIC

I like the hk system in the 2017 GLE350. Good bass, good midtone separation, good volume.

What specifically disappoints you?

Jun 9, 2019 | 02:48 AM

Jambert Corpus

Thread Starter

Junior Member

Joined: May 2019

Posts: 74

Likes: 18

From: Sacramento

CLS400

Quote:

Originally Posted by chassis

I like the hk system in the 2017 GLE350. Good bass, good midtone separation, good volume.

What specifically disappoints you?

Overall sound quality.

Coming from an Infiniti with a Bose, it doesn’t sound any better.

Jan 21, 2026 | 08:27 PM

PrinceOfSalt

Newbie

Joined: Jan 2026

Posts: 4

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CLS 400

I have the same issue now, did you end up fixing it?

Jan 21, 2026 | 10:49 PM

Alexie

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Joined: Jun 2025

Posts: 784

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From: USA

Quote:

Originally Posted by Jambert Corpus

Absolutely. That generation's Logic 7 is notoriously weak and muddy, especially the amp. Many owners upgrade it first it makes a huge difference. Your friend's newer Bose is simply a more modern, better-tuned system.

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