Specifications

27
DR-880
12-2. Check the residual noise of
“MASTER OUT” L (MONO)/R.
Listen to the noise, and verify the following.
1. Noise level: -73 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
12-3. Check the residual noise of
“MASTER OUT” (PIN).
Listen to the noise, and verify the following.
1. Noise level: -82 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
12-4. Check the residual noise of
“INDIVIDUAL.”
Listen to the noise, and verify the following.
1. Noise level: -77.5 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
12-5. Check the residual noise of
“PHONES.”
Listen to the noise, and verify the following.
1. Noise level: -72 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
12-6. Check the residual noise of
“MASTER OUT” L (MONO)/R at the Hi-
Gain setting. (INPUT residual noise
check)
Press [BANK] to select “Hi-Gain.”
fig.inputadcheck4.eps
Listen to the noise, and verify the following.
1. Noise level: -70 dBu or less (both L and R)
2. No abnormal sound is present in the output.
3. No abnormal sound is produced when you apply physical shock to the
unit.
13. Turn off the power.