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Year: 1978
Top Deflection Studies - Ovation Test Records - GC 12 String Model 1118-4 Frequency Response Charts
1974
US
2 pages
These are Ovation Instruments factory quality control test records dated December 6, 1974, showing frequency response measurements for two GC 12-string guitars, both Model 1118-4, with serial numbers 035967 and 036202. Each chart plots decibel output (ranging from +20dB to -40dB) against frequency (Hz) across the audible spectrum, with notable resonance peaks annotated around 116-196 Hz and 219-221 Hz ranges. The records are labeled as Test Record Numbers 64 and 65 respectively, suggesting these were consecutive production units undergoing standard acoustic testing.
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