| MICROPHONE INPUTS |
Connectors: |
Female XLR Pin 2 hot |
Type: |
Electronically balanced/unbalanced |
Impedance: |
1.70 kΩ |
Optimum Microphone Impedance: |
150 - 200 Ω |
Maximum Input Level: |
> +13 dBu, or +33 dBu with 20
dB pad engaged |
CMRR: |
> 115 dB at 60 Hz, > 110 dB
at 1 kHz, > 75dB at 10 kHz |
| LINE INPUTS: |
Connectors: |
Female XLR Pin 2 hot and TRS 1/4” |
Type: |
Electronically balanced/unbalanced |
Impedance: |
20.1 kΩ nominal, or 470 kΩ with rear-panel
INST switch engaged |
Maximum Input Level: |
> +30 dBu, or +22 dBu with rear-panel INST
switch engaged |
OUTPUTS |
Connectors: |
Male XLR Pin 2 hot and
TRS 1/4” |
Type: |
Servo-balanced/unbalanced, RF filtered |
Impedance: |
Balanced 120Ω, unbalanced 60Ω |
Maximum Output Level: |
+21.5 dBu, balanced or unbalanced |
INSERT |
Connectors: |
TRS 1/4" |
Type: |
Impedance balanced/unbalanced (SEND),
electronically balanced/unbalanced (RETURN) |
Impedance: |
+4dBu |
Nominal Return Level: |
+4dBu |
SYSTEM PERFORMANCE |
DRIVE Control Range: |
+10 dB to +60 dB |
LEVEL Control Range: |
-15 dB to +15 dB |
0.5 dB Bandwidth: |
15 Hz to > 90 kHz +0/-0.5 dB |
Frequency Response: |
<10 Hz to >200 kHz +0/-3.0
dB |
EIN: |
Typically -126 dBu, 150Ω source
impedance, unweighted, 20 Hz to 20 kHz measurement bandwidth |
THD + Noise: |
0.04% typical at +0 dBu out, 1kHz,
33 dB gain
3.5% typical at +21 dBu out, 1kHz, 35 dB gain |
Deviation From Linear
Phase: |
< 20 degrees, 20 Hz to 20 kHz |
Interchannel Crosstalk: |
Typically -98 dB, 20 Hz to 20 kHz |
EQUALIZER |
LOW Frequency: |
80 Hz, shelving filter |
HIGH Frequency: |
12 kHz, shelving filter |
MID Frequency: |
Sweepable from 100 Hz to 8 kHz, bandwidth
1.5 octaves (WIDE) or 0.5 octaves (NARROW) |
Gain (all bands): |
Sweepable from -15 to +15 dB |
PEAKPLUS® LIMITER |
Type: |
Two-stage proprietary |
Threshold Range: |
0 dBu to + 22 dBu (off) |
FUNCTION SWITCHES |
Insert: |
Inserts a device connected
to the rear-panel Return jack into the signal path |
Narrow: |
Selects narrow (0.5 octave) bandwidth
for the MID frequency control |
EQ: |
Enables the equalizer section |
LINE: |
Selects the Line inputs |
+48V: |
Enables the 48V phantom power for the
Microphone input |
PAD: |
Attenuates the input signal by 20 dB |
PHASE: |
Reverses pins 2 and 3 of the input
XLR connector |
LO CUT: |
Enables the 75 Hz, 12 dB/octave low
cut filter |
METER SOURCE SWITCHES |
DRIVE: |
Monitors the signal level
at the input to the vacuum tube |
INSERT: |
Monitors the signal level
at the Insert Return jack |
DIGITAL OUTPUT OPTION SWITCHES |
(Note: The digital output
option switches are enabled only when the optional dbx TYPE IV®
is installed in the unit.) |
DITHER: |
Selects between Dither
algorithms
|
SHAPE: |
Selects between Noise
Shape algorithms |
REAR PANEL SWITCHES |
INST: |
Switches the gain and
impedance of the Line Inputs to allow for connection of unbalanced
devices with passive instrument pickups |
+4 dBu/-10 dBV: |
Switches the nominal
output level between +4 dBu and -10 dBV |
INDICATORS |
CLIP: |
Red LED to indicate when
the internal signal level is within 3 dB of actual waveform clipping;
sense points are at all critical stages of the circuit |
LIMIT: |
Red LED to indicated
when the PeakPlus limiter is active |
OPTIONS |
Digital output module: |
Contact dbx® for
further details
|
LIMIT: |
Red LED to indicated
when the PeakPlus limiter is active |
POWER SUPPLY: |
Operating Voltage: |
100V, 120V, or 220-240VAC
50/60 Hz |
Power Consumption: |
30 Watts maximum |
Fuse: |
100V: 315mA 250V Slow
Blow 5mm X 20mm
120V: 315mA 250V Slow Blow 5mm X 20mm
220-240V: T160 mA 250V 5mm X 20mm |
Mains Connection: |
IEC 320 Receptacle |
PHYSICAL |
Dimensions: |
3.5" H X 19"
W X 8" D |
Net/Shipping Weight: |
Net: 12 lbs (5.5kg);
Shipping: 13lbs. (5.9kg)
|
| Note: 0 dBu = 0.775V RMS. |
| Note: Specifications subject to
change without notice. |