Behringer GEQ3102 manual Installation, Effects of equalization on music program, Rack mounting

ULTRA-GRAPH PRO GEQ3102

3.2 Effects of equalization on music program

Center frequency (Hz)	Effects on music
1/3 octave
	Fundamentals of bass drum, tuba, double bass and organ.
31 to 63	These frequencies give music a sense of power. If over-
	emphasised they make the music "muddy". The 50 or
	60 Hz band is also used to reject AC mains hum.
	Fundamentals of lower tympani. Too much boost produces
80 to 125	excessive "boom". 100 or 125 Hz are also used for hum
	rejection.
	Drum and lower bass. Too much boost produces
160 to 250	excessive "boom". Also useful for 3rd harmonic mains hum
	rejection.
315 to 500	Fundamentals of strings and percussion.
	Fundamentals and harmonics of strings, keyboards and
630 to 1k	percussion. Boosting the 600 to 1 kHz range can make
	instruments sound horn-like.
	Drums, guitar, accentuation of vocals, strings and bass.
1.25k to 4k	Too much boost in the 1 to 2 kHz range can make
	instuments sound tinny. Too much boost anywhere
	between 1 to 4 kHz can produce "listening fatigue".
	Accentuation of percussion, cymbals and snare drum.
5k to 8k	Reduction at 5 kHz makes overall sound more distant and
	transparent. Reduction of tape hiss and system noise. The
	1.25 to 8 kHz governs clarity and definition.
10k to 16k	Cymbals and overall brightness. Too much boost causes
	sibilance. Reduction of tape hiss and system noise.

Tab. 3.2: Effects of equalization on music reproduction

4. INSTALLATION

Your BEHRINGER ULTRA-GRAPH PRO was carefully packed in the factory and the packaging is designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage, which may have occurred during transit.

+If the unit is damaged, please do not return it to BEHRINGER, but notify your dealer and the shipping company immediately, otherwise claims for damage or replacement may not be granted. Shipping claims must be made by the consignee.

4.1 Rack mounting

The BEHRINGER ULTRA-GRAPH PRO fits into two standard 19" rack units of space. Please allow at least an additional 4" depth for the connectors on the back panel.

12 4. INSTALLATION