Shure FP33 - Manual (Page 12)

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10
SPECIFICATIONS
Measurement conditions, unless otherwise specified: Op-
erating Voltage: 18 Vdc
Full gain
1 kHz input signal.
Output terminations: Line 600
Ω;
Mic 150
Ω;
Tape Out 50 k
Ω,
Headphone
200 Ω.
Frequency Response
20 to 20,000 Hz
±
2.0 dB (channel controls centered).
Voltage Gain
Input Line Mic Headphone Tape
Low-Z
Mic
(150
Ω
)
78 dB 28 dB 89 dB 66 dB
Line 28 dB –22 dB 39 dB 16 dB
Monitor –– –– 11 dB ––
Inputs
IMPEDANCE
Input Designed for
Use with
Actual
(Internal)
Input Clip
Level
Mic 19 to 600
Ω
1 k
Ω
–10 dBV
Line
≤
10 k
Ω
50 k
Ω
+36 dBV
Monitor
≤
1 k
Ω
10 k
Ω
+21 dBV
Outputs
IMPEDANCE
Input Designed for
Use with
Actual
(Internal)
Output Clip
Level
Mic Low-Z
inputs
1 Ω –31 dBV
Line 600
Ω
150
Ω
+18 dBm
Tape >10 k
Ω
2.2 k
Ω
+3 dBV
Headphones 8 to 200
Ω
300
Ω
+11 dBV
Total Harmonic Distortion
0.25% THD at +4 dBm output, 50 to 20,000 Hz.
Equivalent Input Noise
–127 dBV with 150
Ω
source, 20 to 20,000 Hz.
Output Noise
Master level fully CCW:
≤
–100 dBV, 20 to 20,000 Hz.
Master level fully CW:
≤
–80 dBV, 20 to 20,000 Hz.
Common Mode Rejection Ratio
65 dB at 100 Hz, –20 dBV input.
Polarity
Mic/Line In to Mic/Line Out Non-Inverting
Mic/Line In to Headphones Non-Inverting
Mic/Line In to Tape Out Non-Inverting
Mic/Line to Mix Bus Inverting
Monitor In to Headphones Non-Inverting
Overload and Shorting
Shorted outputs, even for prolonged periods, cause no
damage. Microphone inputs of up to 3 Vrms cause no
damage. The Line and monitor inputs can withstand sig-
nals of up to 30 Vrms.
Input Channel Bi-Color LEDs
Green: Signal presence; visual indication of mix level.
Red: 6 dB below clipping level.
Output Peak/Limiter Bi-Color LEDs
Green: Output being limited by 1 dB or more.
Red: Output peak threshold reached; factory set at
+17 dBm; user adjustable from 0 to 17 dBm.
Output Clipping Level
≥
+18 dBm at line output into 600
Ω.
Low–Cut Filters
6 dB down at 150 Hz; 6 dB/octave slope.
Pan Attenuation Level
45 dB.
Tone Oscillator
1 kHz
±
10%.
Slate Tone Oscillator
400 Hz
±
10%.
Limiter
Threshold: Adjustable; 0 dBm to +15 dBm.
Attack Time: 1 ms.
Release Time Constant: Selectable; 100 ms or 1 s.
Indicator: Green when limiting by 1 dB or more.
Microphone Power
12 V Phantom: 12 V through matched 680
Ω
.
48 V Phantom : 48 V through matched 6.8 k
Ω
.
12 V T (A–B):12 V through matched 180
Ω
.
Mixer Power
Internal: Two 9 V alkaline batteries.
External: 12–30 Vdc to dc In jack; non–polarized.
Current Drain: Approximately 41 mA (idle) at 18 V.
Battery Life: 8 hours minimum, typical.
Temperature Range
Operating: 0
°
to 60
°
C (32
°
to 140
°
F).
Storage: –40
°
to 85
°
C (–40
°
to 185
°
F).
Overall Dimensions (H x W x D)
58 mm x 184 mm x 161 mm (7–1/4 x 6–3/8 x 2–1/4 in.).
Net Weight (without batteries)
1.6 kg (3.5 lbs).
FURNISHED ACCESSORIES
Carrying Case 26A19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To wrap the carrying case around the FP33 mixer, refer
to the assembly instructions supplied.
Shoulder Strap 95A8508 . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the strap’s swivel hooks to the metal ears lo-
cated on the FP33 side panels.
Mix Bus Cable 90A4313 . . . . . . . . . . . . . . . . . . . . . . . . . .
A three-conductor, shielded cable 205 mm (8 in.) long
with a female 3-pin “Tini Q-G” connector at each end.
Rubber Feet 66A8010 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If desired, these adhering feet may be placed on the bot-
tom or the rear of the FP33 mixer.
Spare Fuse 187AJ06A . . . . . . . . . . . . . . . . . . . . . . . . . . . .