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Top Deflection Studies - Ovation Frequency Response Test Records - Standard Balladeer & 1111-4

1973 US 4 pages

This document consists of four Ovation Instruments frequency response test charts dated December 4, 1973, measuring acoustic output in decibels (dB) across a wide frequency range (approximately 41 Hz to 9372 Hz). The tests compare Standard Production 1111-4 and Standard Balladeer guitar models, including variants with solid angle construction (units #018159 and #018160). Each chart displays characteristic resonance peaks around 110 Hz and 220 Hz, with varying frequency response profiles across the audible spectrum, likely used for quality control or research and development purposes.

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