• Comment: Many of the sources are from the company itself, and there is still a big issue where it sounds like an essay. Other sources listed are also primary sources, and a lot of them are used throughout the article repeatedly. UserMemer (chat) Tribs 15:04, 13 October 2024 (UTC)
  • Comment: "Citations aren't mostly citations"? There shouldn't be a "what is it?" "how does it work?" section, this is not a how-to guide, this is an encyclopedia article. Utopes (talk / cont) 19:29, 25 August 2024 (UTC)

LOGIC7 logo on harman/kardon AVR 255

Logic 7 will mostly be referred to as "Logic 7" in this article for simplicity, even though it was rebranded a couple of times, being called LOGIC7, LOGIC7 UpMix, LOGIC7 HD, Logic 7, etc....[1][2][3][4][5][6]

Logic 7 is a surround sound processing algorithm made by an American company focusing on audio equipment known as Lexicon in 1996 with the introduction of the Lexicon DC-1 Digital Controller.[7][8][9]

7.1 channel surround sound speaker positioning around the white dot, being the listener.

Functionality

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In it's functional form, it is similar to Dolby Pro Logic II family , mainly Dolby Pro Logic IIx released in 2003. It was also of a 7.1 channel kind. Dolby Pro Logic II was originally created by Jim Fosgate,[10][11] then reworked into a digital form with Dolby Laboratories, which came out later in 2000. It is a matrix based upmixer, just like Dolby Pro Logic family and the original Dolby Surround. Logic 7 at the time of release in 1996 was only competing with Dolby Pro Logic, which came out in 1987. Logic 7 differed, as it allowed for 7.1 channel surround sound, compared with Dolby Pro Logic's 5.1 channel surround sound limit. Logic 7 was more suitable for music, as it did not utilize the center channel as much, that was mainly used for dialogue, or the singer's voice. Logic 7 had a wide range of customization found on the Lexicon unit. There was also a wide frequency response range in the surround channels (453hz-20khz[12]), compared to Dolby Pro Logic's (100hz-7khz)[13] range. Dolby Pro Logic allowed for a single rear surround channel, in a stereo surround speaker configuration, they would both play the same mono sound. With the arrival of Dolby Pro Logic II, allowing full frequency response range and stereo surround speakers, this was no longer the case.

Home and professional use

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This category is incomplete due to high complexity. You can help by expanding it.

Logic 7 was first used only on Lexicon's units

  • A new variant of MC-12 Music and Cinema processor came too, called the MC-12 HD[22]

Car Audio

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BMW 7 Series 2002-2008 E65/E66/E67/E68
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BMW E65

On January 8th 2002, Harman International first announced that the 2002 BMW 7 Series will include Logic 7 in the LOGIC 7 Professional Audio System designed by harman/kardon. It featured 13 speakers, 2 subwoofers, 6-disc in-dash CD changer, Digital Sound Processing and later MP3 playback capability with the 2006 revision. It was also able to be configured with SIRIUS Satellite Radio and HD Radio since 2006, and since the 2007 variant, there was also an auxialiary input located inside middle console.[25][26][27] It was the first car to feature Logic 7 ever.

Do not mistake the standard 10-speaker system, which also came with two subwoofers, for a Logic 7 sound system, easiest way to tell is from the iDrive infotainment, as there will be no option for Logic 7 in the audio settings.[28]

It was available standard on the 2004,2005 and 2006 760Li, the 2005 and 2006 760i, all else had to have the Premium Sound Package.[29][30][31][32][28]

Data insufficient on the 2002 and 2003 models in terms of sound system availabilities.

Mercedes-Benz E-Class 2003-2009 W211
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Mercedes-Benz E-Class W211 pre-facelift

Later that year 23rd of October 2002, Harman International announced that Logic 7 will be featured in the upcoming 2003 Mercedes-Benz E-Class, but only as an optional. It was available with Logic 7, 12 harman/kardon speakers including two surround speakers and a subwoofer, powered by 9 separate amplifiers, 8 channel amplifier and Digital Dynamic Volume Control with an optional 6-CD changer connected via fiber-optic network.[33][34]

2004 sedan and wagon USA
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2005 sedan and wagon USA
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2006 international/2007 international
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2006 E320 CDI USA
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2007 USA
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2008 USA
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2009 USA
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Rolls-Royce Phantom models 2003-2014

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Rolls-Royce Phantom

After this there was the 2003 Rolls Royce Phantom also with Logic 7.[42] it had 15 speakers and could be configured with a 6-DVD/CD changer as of 2006.[43] The Rolls Royce Phantom from 2003 shares the same amplifier with the previously mentioned 2002 BMW 7 Series with the Logic 7 capable sound system.[44]

2006 International
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2006 Drophead Coupe USA
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2008 Coupe USA
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2010 International/2011 Drophead Coupe International
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2013/2014 International
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Land Rover

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2002 Range Rover R322

2002 - 2012 Range Rover R322

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Later Land Rover put Logic 7 into their 2002 Range Rover, featuring 14 harman/kardon speakers, including a subwoofer, 6-disc changer and support for DVD.[52]

2008 Range Rover Vogue/2009 Range Rover
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Do not mistake the standard TDV8 HI ICE: 11 speaker harman/kardon system with DSP, with the previously mentioned, as it does not have LOGIC7.[53][54][55]

2010 Range Rover
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2011 Range Rover Armoured
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2011 Range Rover Vogue
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2011 Range Rover Spain
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2011 Range Rover USA
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2012 Range Rover USA
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2012 Range Rover Germany
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Models starting in 2013 switched to Meridian audio technology.[66]

 
2007 Range Rover L320 Sport Supercharged

2007 - 2013 Range Rover Sport L320

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2007 Range Rover Sport Australia
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Do not mistake the standard Hi ICE: harman/kardon System with 8 speakers and a passive subwoofer for a LOGIC7 system, it does not have that functionality.[67]

2009 Range Rover Sport USA
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2010 Range Rover Sport USA
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2011 Range Rover Sport Australia/Spain
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2011 Range Rover Sport USA
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2011 Range Rover Sport UK
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Do not mistake the standard Hi ICE: harman/kardon System with 8 speakers and a passive subwoofer for a LOGIC7 system, it does not have that functionality.[74]

2012 Range Rover Sport France/USA/UK and 2013 USA
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Models starting in 2014 switched to Meridian 3D Surround Sound.[79]

 
2004 Land Rover Discovery 3 LR3

Discovery 3 LR3

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Then came the Discovery 3 from 2004, which also included Logic 7 with 13 harman/kardon speakers and a subwoofer, powered by a DSP amplifier.[80]

Hyundai

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Hyundai Genesis 2009
Genesis
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Eventually Hyundai partnered with Lexicon to put Lexicon's audio systems into their cars in 2009.[81] First it was the model Genesis in 2009,[82] which in the configuration with the 7.1 Discrete sound system featured 17 speakers in a 7.1 surround sound architecture, with one being a subwoofer, powered by an 11-channel DSP amplifier with 528W, speed sensing volume was present too. In this configuration, it featured a 6-DVD/CD changer, thus the car supported the playback of DVD-Audio/Video. It also had support for DTS-CD, so you could play discrete 5.1 audio such as Dolby Digital 5.1 and DTS 5.1, and then have it upmixed to all 7.1 channels available via Logic 7. It could also play PCM, MLP, MP3, WMA, DMB, XM Satellite Radio and HD Radio.

The cheaper option had 14 speakers with the one's missing being the two front door mid-range drivers and the center tweeter driver. It also did not have DVD or DTS-CD capabilities, thus only including a 6-disc CD changer, disallowing discrete 5.1 audio playback. It had the same amplifier too.[83][84][85][86][87]

The later iteration of the Genesis, released in 2017, also called the G80 and G90 models were the first to not feature Logic 7 surround sound technology, and instead moved onto another Lexicon's surround sound processing algorithm which replaced Logic 7, called QuantumLogic.[88]

 
Hyundai Equus 2011
Equus
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With the arrival of the 2011 revision Equus, it gained a Lexicon audio system with Logic 7 compared to its previous generation.[89] It featured a similar setup to the Genesis, 17 speakers in a 7.1 surround sound architecture, with one being a subwoofer, driven by an 11-channel DSP amplifier with 440W and a 2-channel DSP subwoofer amplifier with 168W. Discrete Logic 7 which allowed for upmixing of discrete 5.1 audio such as Dolby Digital 5.1 and DTS 5.1 to 7.1 channels. Support for DVD-Audio/Video and DTS-CD was also present. It featured a 6-DVD/CD changer, Harman Infotainment, had support for iPod and USB conectivity. It could also play MLP, MP3, WMA, DMB, XM Satellite Radio and HD Radio.[90][91][92][93][94]

 
Kia K9 2012
K9/K900/Quoris
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Known as K900 only in the USA and as Quoris in other export markets. It is essentially a derivative of the Hyundai Equus and Genesis as previously mentioned. It was first released in 2012, and featured the 17-speaker Lexicon audio system as standard. It had a 900W power amplifier, a subwoofer, 12-channel digital sound processor including Discrete Logic 7 surround sound audio, which could upmix discrete 5.1 audio such as Dolby Digital 5.1 and DTS 5.1 to 7.1 channels, just like on the Hyundai Equus and the Genesis with the Discrete Logic 7 sound system. As mentioned above in the Hyundai section.[95][96][97]

In the following 2016 and 2017 revisions, the Lexicon system was no longer available on the Premium V6 package, however it was standard on all other.[98][99][100]

In the 2018 and onward versions, nothing has changed except speaker positions.[101][102][103]

From 2021 and onward they stopped advertising the Lexicon system,[104][105][106] due to the model being discontinued in Canada in 2018 and later in 2021 in the USA. The 2024 K9 isn't sold anywhere outside of South Korea.[106]

In the 2024 revision all models except the Platinum package (base model) come with the Lexicon 17-speaker sound system, all else now newly use a Krell 14-speaker sound system.[107]

References

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