Ep 1.3 Sub -

: Section 1.3 of the OAuth 2.0 Authorization Framework (RFC 6749) covers Authorization Grants , which includes sub-sections like 1.3.1 (Authorization Code) and 1.3.2 (Implicit).

If this is not an audio component, it may be a reference to a specific subsection in a technical or legal document: EP 1.3 SUB

: Exhibit 1.3-4 in the DSM-5 outlines diagnostic criteria for PTSD, including sub-sections on avoidance and negative alterations in mood. : Section 1

: If "1.3" refers to a specific driver size or model version within their lineup, it would likely be a component of an in-wall or architectural audio system. 2. Technical and Regulatory References EP 1.3 SUB

: This brand offers various series, such as the Evolution Series and the Element Ported models.