Tascam AV-452 Installation & Support Manual - page 21
8 – Specifications and block diagram
TASCAM AV-452
Installation & Support Guide
21
Master section specifications
Phones
Speaker outputs
Audio performance
CASCADE INPUTS
Balanced (XLR -type connectors
Input impedance 10 k
Ω, input level
+4 dBu
LINE OUTPUT
Balanced XLR-type connectors
Output impedance 100
Ω, nominal
output level +4 dBu, maximum output
level +23 dBu
MEETING OUT
Unbalanced RCA connectors
Output impedance 100
Ω, nominal
output level –10 dBV (–7.8 dBu),
maximum output level +15 dBV
(+17.2 dBu)
INTERCOM
Barrier strip
70 V, 40 k
Ω, 24 V, 12 kΩ or 12 V, 4.7 kΩ
EMG IN
5 V r.m.s.
Connector
1/4" stereo jack
Maximum output
power
100 mW + 100 mW (68
Ω) control at maximum
Connector
Binding posts
Load impedance
8
Ω
Rated output power
80 W + 80 W (1 kHz, 1%, 8
Ω)
Maximum output power 100 W +100 W (EIA, JAITA)
Frequency
response
20Hz to 20kHz +1.0/–2.0dB, MIC IN to INSERT SEND
20Hz to 20kHz +1.0/–2.0dB, LINE IN to LINE OUTPUT
20Hz to 20kHz +1.0/–2.0dB, LINE IN to MEETING OUTPUT
20Hz to 20kHz +1.0/–2.0dB, LINE IN to OUTPUT (to LINE sources)
50Hz to 20kHz +1.0/–2.0dB, LINE IN to PHONES OUTPUT
THD
(nominal level,
1 kHz)
0.07%, MIC IN to LINE OUTPUT (GAIN: MIN, DIN AUDIO)
0.03%, LINE IN to LINE OUTPUT (DIN AUDIO)
0.03%, LINE IN to OUTPUT (to LINE sources) (DIN AUDIO)
0.03%, LINE IN to MEETING OUTPUT (DIN AUDIO)
Noise level
(DIN Audio+A)
MIC IN
(GAIN: MAX, EIN, 150ohm terminated) –110dBu, MIC IN to INSERT SEND
LINE IN
(DIN Audio)
–72 dBV (–70dBu), LINE IN to LINE OUTPUT
–72 dBV (–70dBu), LINE IN to OUTPUT (to LINE sources)
–72 dBV (–70dBu), LINE IN to MEETING OUTPUT
–70 dBV (–68dBu), LINE IN to PHONES OUTPUT
Crosstalk
60dB, L/R at 1kHz
65dB, Input channels at 1kHz
Speaker
outputs
Noise level (DIN Audio +A): 4 mV (ROOM VOLUME at max, MIC faders at min, inputs shorted); 1.2 mV (ROOM VOLUME minimum
Signal-to-noise ratio (DIN Audio+A):70 dB (output of 50 W)