Step Two. The Advanced Calibration Plan

The Acoustic Design Review (ADR) is a qualitative analysis of a system design and the Level II System/Room Analysis and Measurement (SAM) is a quantitative measurement of performance. From each, the calibrator can draw conclusions about problems or potential improvements possible in a system design. After completing these processes, if necessary, a final proposal can be created; the advanced calibration plan. This plan in effect becomes a new design crafted to reduce or perhaps even eliminate a sonic objection. Calibration plans can have minor suggestions or require more involving solutions. More advanced improvements for a system may require flexibility in listener/speaker placement, potential modifications of wall surfaces or component changes. The success of a calibration can depend on the clients flexibility concerning these issues. This is not to say that great improvements are not possible without total flexibility. The best calibrators can achieve good results despite most common system or room limitations. Overall, the Advanced Calibration Plan will specify the cost of any system redesign or calibration or detail requirements for proposal by others.

Common Plan Proposals:

- precise positioning of listening chairs to achieve a smooth frequency response

- precise positioning of speakers and subwoofer(s) for best response, clarity and sound stage presentation

- rearrangement of furnishing to optimize acoustical value (sometimes moving a chair or bookcase can be as effective as buying an acoustical treatment)

- redesign of wall surfaces, room dimensions, or addition of room treatments

- addition or substitution of equipment such as sub woofers, speakers, amplifiers

- proper equalization of sub woofers or in some cases all speakers

- entertainment system cabinet redesign or modification

- repair or upgrading of existing components

- changes in furniture, wall coverings, window treatments, doors, insulation etc.

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