Marantz SR7500 manual English, MRAC Marantz Room Acoustic Calibration, Measurement, How to Operate

MRAC (Marantz Room Acoustic Calibration)

Speaker settings that were difficult by MANUAL setup can now be made by automatically measuring speaker characteristics using the including microphone.

Measurement

During measurement, a test tone is output from the speakers, which is then measured and analyzed though the microphone. The measurement flow and items are as follows.

• About surround back speakers :	ENGLISH
When the surround back speaker is set to NONE
in the SPEAKER SETUP, it is skipped in the
AUTO setup. To use the surround back speaker,
set it to YES by MANUAL setup before using the

2 - 1 S P E A K E R S E T U P

S P E A K E R S E T U P : A U T O S E T M I C R O P H O N E

M A I N		N E X T	E X I T
	A U T O	S E T U P
	S T A R T C A N C E L
S P E A K E R S		C H E C K	: ✽ ✽
S P E A K E R S L E V E L			: ✽ ✽
S P E A K E R S		D I S T A N C E : ✽ ✽
S P E A K E R S S I Z E			: ✽ ✽
M A I N	R E T U R N N E X T		E X I T
	A U T O	S E T U P
	S T A R T C A N C E L
	A M B I E N T N O I S E C H K
S P E A K E R S		C H E C K	: ✽ ✽
S P E A K E R S L E V E L			: ✽ ✽
S P E A K E R S		D I S T A N C E : ✽ ✽
S P E A K E R S S I Z E			: ✽ ✽
M A I N	R E T U R N N E X T		E X I T
	A U T O	S E T U P
	S T A R T C A N C E L
	A M B I E N T N O I S E O K
S P E A K E R S		C H E C K	: ✽ ✽
S P E A K E R S L E V E L			: ✽ ✽
S P E A K E R S		D I S T A N C E : ✽ ✽
S P E A K E R S S I Z E			: ✽ ✽
M A I N	R E T U R N N E X T		E X I T
	A U T O	S E T U P
	S T A R T C A N C E L
	N OW	A N A L Y Z I N G
S P E A K E R S		C H E C K	: ✽ ✽
S P E A K E R S L E V E L			: ✽ ✽
S P E A K E R S D I S T A N C E : ✽ ✽
S P E A K E R S S I Z E			: ✽ ✽
M A I N	R E T U R N N E X T		E X I T
	A U T O	S E T U P
	S T A R T C A N C E L
	F I N I S H E D
S P E A K E R S C H E C K			: O K
S P E A K E R S L E V E L			: O K
S P E A K E R S D I S T A N C E : O K
S P E A K E R S S I Z E			: O K

	A U T O		S E T U P
	S T A R T C A N C E L
	M I C		S E T U P E R R O R
NG	S P E A K E R S		C H E C K		: ✽ ✽
	S P E A K E R S L E V E L				: ✽ ✽
	S P E A K E R S		D I S T A N C E : ✽ ✽
	S P E A K E R S		S I Z E		: ✽ ✽
	M A I N	R E T U R N		N E X T	E X I T

		A U T O S E T U P
		S T A R T	C A N C E L
		A M B I N O I S E E R R O R
NG	S P E A K E R S C H E C K			: ✽ ✽
	S P E A K E R S L E V E L			: ✽ ✽
	S P E A K E R S D I S T A N C E : ✽ ✽
	S P E A K E R S S I Z E			: ✽ ✽
	M A I N R E T U R N N E X T			E X I T

		A U T O S E T U P
		S T A R T	C A N C E L
	S P E A K E R S E T E R R O R
NG	S P E A K E R S C H E C K			: ✽ ✽
	S P E A K E R S L E V E L			: ✽ ✽
	S P E A K E R S D I S T A N C E : ✽ ✽
	S P E A K E R S S I Z E			: ✽ ✽
	M A I N R E T U R N N E X T			E X I T

Microphone connection check: MIC CHECK

Ambient noise measurement: AMBIENT NOISE Speaker connected/not connected check:

SPEAKER CHECK Speaker output level check: SPEAKER LEVEL Distance from speaker (delay time) check:

SPEAKER DISTANCE Speaker characteristics check: SPEAKER SIZE

How to Operate

Settings are displayed on the monitor during setup, therefore turn the monitor on.

1. Connect the included microphone to the

MRAC jack of the unit.

2. Set the microphone at ear height as in the actual listening position. Use a stand or tripod

to position the microphone.

Notes:

•Remove any obstructions between the speakers and the microphone.

•Keep the room quiet during measurement.

•The test tone emitted during measurement is loud. Take considerations for neighboring homes and children.

•Step away from the listening position during measurement and operate the unit with the remote controller from outside the speaker path.

MRAC feature.

• The MRAC feature is available except in the

following modes.

- 7.1 CH INPUT

- PURE-DIRECT

3. Either press the MRAC button on the front panel

of the unit or select “2. SPEAKER SETUP” on

the SETUP MAIN MENU, then select AUTO for

“2-1 SPEAKER SETUP”. Move the cursor to

“NEXT” with the or cursor buttons and then

press the ENTER button.

2 - 1 S P E AK E R S E T U P

S P E AK E R S S E T U P	: AUTO
S E T M I CROP HON E

MA I N N E X T E X I T

4. Select START on the AUTO SETUP display and press the ENTER button to start

measurements.

AU T O S E T U P
S T AR T	CAN C E L
S P E AK E R S C H E CK		: ✽✽
S P E AK E R S L E V E L		: ✽✽
S P E AK E R S D I S T ANC E : ✽✽
S P E AK E R S S I Z E		: ✽✽

MA I N R E T U RN N E X T E X I T

5. For measurement items, see “Measurement”.

6. When measurements are completed, “FINISHED” appears on the monitor.

7. Once finished, disconnect the microphone from the unit.

8. Measurement results can be seen by selecting “NEXT” and press the ENTER button or selecting “2. SPEAKER SETUP” on the SETUP MAIN MENU. Then select MANUAL for “2-1 SPEAKER SETUP”.

M A I N R E T U R N N E X T E X I T

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