Technical Info:
Main Features
High Quality Inputs and Outputs
The FP33 features balanced XLR inputs and outputs, switchable between mic and line level signal. In addition the FP33 features 3.5mm Monitor input and Tape output jacks.
Quiet Audio Signal
Transformer balanced inputs and outputs result in superior rejection of RFI and electromagnetic hum.
48 and 12 Volt Phantom Power
Both 48 and 12 Volt Phantom power is supported allowing up to 8 hours of use on two 9 Volt batteries.
Mix Bus Output
The Mix Bus output jack allows users to cascade multiple FP33 mixers for simultaneous use. Also allows tandem use with the Shure FP32A.
Professional VU Meters
Professional analog VU meters are more durable against elements than LED, LCD, or fluorescent meters. The meters feature timed or toggled backlighting and are multifunctional.
Built-In Tone Oscillator
The FP33 provides a 1kHz test tone oscillator for calibration of tape machines, meters etc.
Isolated Two-Way Talk Back
Isolated two-way talk-back using Monitor In and modified Slate Mic/Tape Out jack.
4 Headphone Monitor Modes
Headphone Monitor switch allows monitoring of Left, Left + Right (Mono), Right and Stereo audio signals. Perfect for isolating either “mid” or “side” signal when using stereo microphones.
Compact Rugged Design
The Compact rugged plated metal chassis is made to withstand extreme heat and cold for full operation under harsh conditions.
Additional Features
- Dynamic range greater than 100dB
- Wide range input gain controls handle hot signal levels
- Link switch gangs inputs 2 and 3 to control a stereo microphone
- Switchable low-cut filters on each input
- Bi-color LED signal presence and peak indicator for each input
- Dual-clutched Master gain control for versatile output level adjustment
- Bi-color LED limiter and peak indicator for each output
- Two linkable output peak limiters with adjustable thresholds and release times
- Slate microphone and slate tone with selectable functions
- Mixer/Monitor In switch (locking and momentary)
- Internal Monitor defeat switch for split-feed headphone operation
- 1/4″ and 3.5mm headphone outputs
- Regulated voltage rails provide exceptional headroom
- Battery check switch and low battery warning LED
- External power operating range of 12 to 30VDC
- Rugged, plated metal chassis
- Operates for 8 hours on two 9 V alkaline batteries
- Includes carrying case, shoulder strap, and mix bus cable
- Customized operation via internal DIP switches, trim pots, slide switches, and optional jumpers
More information:
Shure FP33
Connectivity | |
Inputs | 3 x Balanced XLR inputs |
Output | 2 x Balanced XLR outputs (1 x L/R) |
Headphone Outputs | 1 x 1/4″ TRS stereo 1 x 3.5mm TRS stereo mini |
ALT I/O | 1 x 3.5 mm TRS stereo mini – Monitor In 1 x 3.5 mm TRS stereo mini – Tape Out |
Link Input/Output | “MIX BUS” connection: 3-Pin mini-XLR connector |
Performance | |
Input Impedance | Mic: 1kΩ internal; use with 19 to 600Ω source; -10 dBV clip level Line: 50kΩ internal; use with ≤ 10kΩ source; +36 dBV clip level Monitor: 10kΩ internal; use with ≤ 1kΩ source; +21 dBV clip level |
Output Impedance | Mic: 1Ω internal; use with Low-Z source; -31 dBV clip level Line: 150Ω internal; use with 600Ω source; +18 dBm clip level Tape: 2.2kΩ internal; use with >10kΩ source; +3 dBV clip level Headphones: 300Ω internal; use with 8 to 200Ω source; +11 dBV clip level |
Gain | Low-Z Mic Input: Line 78 dB, Mic 28 dB, Headphone 89 dB, Tape 66 dB Line: Line 28 dB, Mic -22 dB, Headphone 39 dB, Tape 16 dB Monitor: Headphone 11 dB |
Frequency Response | 20 to 20,000 Hz ± 2.0 dB (channel controls centered) |
THD | 0.25% THD @ +4dBm output, 50 to 20,000 Hz |
Equivalent Input Noise | -127 dBV with 150Ω 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 @ 100 Hz, -20 dBV input |
Polarity | Mic/Line to Mix Bus: inverting all other signal paths are non-inverting |
Overload Protection | 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 signals of up to 30 Vrms. |
Output Clipping Level | ≥ -18 dBm @ line output into 600Ω |
Oscillators | 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 second Indicator: green when limiting by 1 dB or more |
Microphone Power | 12V Phantom through matched 680Ω 48V Phantom: through matched 6.8kΩ 12V T (A-B): through matched 180Ω |
General | |
LED Indicators | 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: |
VU Meter | VU Left/Right Channel Output Level Meters: 0 VU preset at +4 dBm output level |
Operating Temperature | Operating: 0 to 60° C (32 to 140° F) Storage: -40 to 85° C (-40 to 185° F) |
Power | Internal: two 9V alkaline batteries External: 12-30 VDC to DC In jack; non-polarized |
Current Drain | Approximately 41 mA (idle) at 18V |
Battery Life | 8 hours minimum, typical |
Dimensions (H x W x D) | 2.26 x 7.24 x 6.33″ (58 x 184 x 161 mm) |
Weight | 3.5 lb (1.6 kg) |