2
SPECIFICATIONS
Frequency Response (ref 1 kHz)
30 to 20,000 Hz, ±2 dB
Voltage Gain (at 1 kHz)
INPUT OUTPUT
LINE MICROPHONE LINK
Mic 90 dB 40 dB 70 dB
Line 40 dB –10 dB 20 dB
Link 20 dB –30dB – –
Inputs
INPUT IMPEDANCE (at 1 kHz) INPUT CLIPPING
FOR USE
WITH
ACTUAL
LEVEL AT 1kHz
Mic 150 Ω 1 kΩ –62 to –6 dBV*
Line less than 10 kΩ 66 kΩ –12 to + 44 dBV*
Link more than 5 kΩ 24 kΩ +8 dBV
*Dependent on input control setting
Outputs
INPUT IMPEDANCE (at 1 kHz) INPUT CLIPPING
FOR USE WITH ACTUAL
LEVEL AT 1kHz
Mic 150 Ω 2 Ω –34 dBV
Line 600 Ω 185 Ω +16 dBV
Link 600 Ω or greater 100 Ω or less +16 dBV
Noise
Equivalent Input Noise: –129 dBV (low-impedance
microphone, 150 Ohms, 300 to 20,000 Hz) into 600
ohm load at full gain
Equivalent Input Hum and Noise: –127 dBV (low-
impedance microphone, 150 Ohms, 20 to 20,000 Hz)
into 600 ohm load at full gain
Output Noise: – 90 dBV maximum (output control full
counterclockwise [offl), –65 dBV maximum (output
control full clockwise [on]) (input control down, 300 to
20,000 Hz)
Output Hum and Noise: –75 dBV maximum (output
control down), –65 dBV max. (output control up, input
control down, 20 to 20,000 Hz)
Distortion
0.4% THD, 30 to 20,000 Hz at +15 dBm output; 0.5%
or less IM distortion at +15 dBm output
Common Mode Rejection
65 dB minimum with input of – 20 dBV at 100 Hz
Control Interaction
Less than 1 dB with any control combination
Overload and Shorting Protection
Shorting outputs, even for prolonged periods, will-
cause no damage; microphone input will not be dam-
aged by signals up to 3V
Phase
All outputs in phase with input. Pin 2 is “high” with
respect to pin 3; pin 1 is ground. Tips of link input and
output phone jacks are in phase with pin 2 of XLR
connectors.
Phantom Power
30 VDC nominal, 3.3k series resistance, automatical-
ly disabled with input switch in Line position
Operating Voltage
AC Operation: 120 or 240 VAC ± 10% (internally se-
lectable), 50/60 Hz, 5.5W
DC Operation: 27 VDC nominal at 16 mA typical no-
signal, 22 mA typical at 0 VU (+4 dBm) output; 21.5
VDC minimum; battery life approximately 20 hours
with alkaline batteries at +4 dBm output in continuous
use; three 9 volt batteries, type NEDA 1604A (Dura-
cell MN1604 or Eveready 522 recommended)
Temperature Range
Operating: –18_ to 57_C (0_ to 135_F)
Storage: –29_ to 71_C (–20_ to 160_F)
Dimensions
79.5 mm H x 310 mm W x 230 mm D
(3–1/8 in, x12–7/32 in. x 9–1/16 in.)
Weight
Net: 2.75 kg (6 Ib 1 oz.)
Packaged: 3.15 kg (6 Ib 15 oz.)
Certifications
Listed by Underwriters Laboratories. Inc.; listed by
Canadian Standards Association as Certified
CONTROLS AND CONNECTORS
On·Off Switch: applies power to the FP16A circuitry
Power LED: Indicates unit is on.
Input Gain Screwdriver Control: adjusts input signal
level.
Output 1-6 Screwdriver Control: adjusts individual output
channel signal levels.
Norm LED: indicates when internal signal level is
approximately 25 dB below clipping.
Overload LED: indicates when internal signal level
approaches clipping.
Three-Pin XLR 1-6 Output Connectors: provide for
connection to either low-impedance microphone or line
level inputs of power amplifiers, mixers, or other signal
processing equipment.
Mic/Line 1-6 Slide Switches: select microphone or line
level output signal levels.
Phantom On-Off Slide Switch: applies 27 VDC (nominal)
phantom power to pins 2 and 3 of the input connector for
use with condenser microphones. IMPORTANT: Make
certain any condenser microphone used is compatible
with the FP16A phantom circuit, and that the FP16A input
Mic/Line switch is in the Mic position. Do not turn the
Phantom switch on when using unbalanced
low-impedance microphones; objectionable hum will
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