Different Models

Different Models

T1 ToneMatch Audio EngineL1 Model IIL1 Model IL1 Classic Most of the articles are applicable for the entire Bose^® Personalized Amplification System™ family of products. Where information is applicable to specific technologies there will be marker like the ones shown to the right.

How to Tell

L1 Classic	2003 - 2007		Rounded front. Output panel has Amp1 Out, Amp2 Out, Amp3 Out
L1 Model I	2007 -		Rounded front, Output panel has Orange markings, L1 logo.
L1 Model II	2007 -		Extending legs
T1 ToneMatch Audio Engine	2007 -		ToneMatch™ audio engine