Inputs

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=46066
Printed Date: May 15, 2024 at 2:59 PM

Topic: Inputs

Posted By: Sancho
Subject: Inputs
Date Posted: December 26, 2004 at 6:28 PM

Can someone explain to me differnce between balanced input and unbalanced which way is better?

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Head Unit:Alpine CDA 9835
6.5 MB Quart Pce 210
Amp:JBL 80.4
Amp:JBL 1200.1
Sub:Adire Brahma 12 MKII

Replies:

Posted By: Velocity Motors
Date Posted: December 26, 2004 at 8:06 PM

Info taken from ofsoundmind site:

Balanced connections entered into the mobile audio scene from the Pro-audio industry. Pro gear such as mixers, microphones, processors, and so on all operate using balanced connections. Your home audio tape deck, CD-player, DVD, VCR and turntable all use an unbalanced connection.

Most balanced connections are made using an XLR style connector.

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Unbalanced connections are made using RCA style connectors.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: 04MDX4SQ
Date Posted: December 26, 2004 at 11:56 PM

Unbalanced connections for the most part use a center conductor and a ground shield. Balanced connections, on the other hand, use two phases relative to ground. A positive and negative, and a ground. The positive and negative signals are exact opposites of each other in phasing, but are of equal amplitude. When a balanced signal is processed, it amplifies what is different and ignores what is the same. This method has greater noise reduction, as the noise is generally shared between the positive and negative conductors and is therefore filtered out.