Specifications
Gain:
Mic Input to Output, per channel, continuously variable
Output | Gain Range |
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LINE | ±∞ ± 66 dB |
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|
TAPE | ±∞ ± 56 dB |
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|
Frequency Response:
20 Hz ± 30 kHz, +0.2, ±0.5 dB; ±1 dB at 5 Hz, 50 kHz
(relative to 1 kHz level with 150 ohm source, gain controls set at 50%)
Equivalent Input Noise:
±126 dBu (±128 dBV) minimum
(150 ohm source, flat weighting, 22 Hz ± 22 kHz bandwidth, gain control set at 50% or higher, phantom power off)
Input Clipping Level:
±10 dBu minimum
Output Clipping Level:
Line: +22 dBu minimum with 100k ohm load +20 dBu minimum with 600 ohm load
Tape: +11 dBu (2.75 V RMS) minimum with 100k ohm load
Dynamic Range:
110 dB minimum
THD + Noise:
0.05% maximum
(from 50 Hz to 22 kHz @ +4 dBu output level, 22 Hz ± 22 kHz filter bandwidth, gain control at 50%, phantom off)
Common Mode Rejection Ratio:
100 dB minimum at 80 Hz
60 dB minimum at 10 kHz
Channel Separation:
Greater than 80 dB at 1 kHz (gain controls set to 50%)
Inputs:
Outputs:
XLR: Active,
Tape (3.5 mm (1/8 in.)): Unbalanced, tip±left, ring±right, sleeve± ground, 2.4k ohm output impedance
High Pass Filters:
80 Hz or 160 Hz (switch selectable), 6 dB per octave
Phantom Power:
15 V through 680 ohm resistors or 48 V through 6.8k resistors (switch selectable)
Limiter:
Thresholds independently adjustable from +6 dBu to +18 dBu
10:1 limiting ratio
5 ms attack time, 100 ms release time Amber/Red LED indicates limiting/clipping Dual mono or stereo linked
Internal Voltage Rails:
+15 V and ±15 V, regulated
Metering:
7 segment GaN (Gallium Nitride) meter with 3 intensities
Peak responding
Power:
Internal: 2 AA batteries
External: 5 ± 14 VDC via threaded coaxial connector* (5.5 mm outer diameter, 2.1 mm inner diameter); Pin positive, sleeve neg- ative; Voltages above 14 VDC cause no damage to unit, but will open an internal poly fuse that will reset when voltage is re- moved.
*Threaded coaxial connector provided for use with power sup- plies not equipped. For instructions on how to solder this connec- tor to a Shure PS20, see Figure 5.
Power LED:
GreenÐexternal DC power or good battery.
RedÐless than 1 hour of battery life remaining (with phantom power off).
Polarity:
All inputs to all outputs,
Pin 2 of XLRs ªhotº (to unbalanced inputs and outputs).
Operating Temperature Range:
0 to 70 degrees C (32 to 160 degrees F)
Dimensions:
43 mm x 94 mm x 140 mm (H x W x D) (1.7º x 3.7º x 5.5º)
Weight (FP24 only):
0.8 kg (1.8 lbs.)
Weight (packaged):
1.2 kg (2.6 lbs.)
EMC Certifications:
Meets FCC Part 15 Class B Emissions; Eligible to bear CE mark (see conformance statement)
Optional Accesories
Balanced
FP33/FP24 Interconnection Kit . . . . . . . . . . . . . . . . . . . . A33LK
Inline Polarity Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . A15PRS
2
