Whirlwind MIX-7 Operation Manual

INTRODUCTION: Thank you for selecting the Whirlwind MIX-7 stereo mic/line mixer. The MIX-7 is a
versatile stereo mixer, combining four mono mic/line inputs and three stereo line inputs, in a
compact, one-rack space package. Features include stereo/mono switching and a tone control on
each of the mic/line inputs, two place master EQ, metering and a stereo/mono switch on the main
outputs. This mixer represents an excellent value, delivering the highest quality audio performance
at a low cost.
UNPACKING: Whirlwind has made every effort to ensure that your equipment is received in the
same perfect condition it was when it left the factory. Please inspect your product for any signs of
damage during shipping and report them to your dealer so that a claim can be made to the shipper.
We recommend that you save your packing material for use in the unlikely event that you need to
return your equipment for service.
WARRANTY: This product is guaranteed to be free from defects in materials and workmanship to the original purchaser
for a period of 5 years from the date of purchase. Should service be required, return the unit postage prepaid along with
the original sales receipt to:
whirlwind
Attention - Repair
99 Ling Road
Rochester, New York 14612
The warranty on this product shall not apply to defects or damage resulting from abuse, abnormal use or from repairs or
modifications performed by anyone other than whirlwind. If it is determined a manufacturing defect has occurred,
whirlwind will repair or replace the unit at our option and pay the postage back to you.
99 Ling Road - Rochester, NY 14612
800-733-9473 / 585-663-8820 Fax: 585-865-8930
www.whirlwindusa.com
sales@whirlwindusa.com
OPERATIONS MANUAL
MIX-7
STEREO MIXER
whirlwind
MIX-7 SPECIFICATIONS
MEASUREMENT
Frequency Response (Line) unity gain ±.25 dBV 20 Hz - 20 kHz
Frequency Response (Mic) 40 dB gain ±.35 dBV 20 Hz - 20 kHz
THD + N Line Mode unity gain <.0035% 20 Hz - 20 kHz
THD + N Mic Mode 40dB gain <.012% 20 Hz - 20 kHz
Equivalent Input Noise -120 dBV
Rise Time 4.1 uSec
Total Gain mic mode full gain 70 dBV
Gain of Microphone Preamp Mic/Line switch (in) +32 dBV
Range of input level pot -63 to +20 dBV
Range of master level pot -70to +17 dBV
Common Mode Rejection of Input (Mic) >63 dB
Maximum Input level Line +21 dBV; Mic –11 dBV
Input Impedance Mic 1.3 kOhms; Line 8.8 kOhms
Isolation between input channels Line at unity gain; 72 dB @ 1 kHz
Maximum output level +26 dBV balanced
Output Impedance 200 Ohms balanced; 100 Ohms each leg
Noise at unity gain (Line) -88 dBV
Noise at 40 dB gain (Mic) -79 dBV
Dynamic Range 111 dBV
Treble Control ±15 dBV @ 16kHz, shelving
Bass Control ±15 dBV @ 20 Hz, shelving
Tone Control ±12 dBV @ 2 kHz, peaking
LED thresholds +18, 22 dBm bal; 16 dBm unbal
+ 8, 12 dBm bal; 6 dBm unbal
0, 4 dBm bal; -2 dBm unbal
- 24, -20 dBm bal; -26 dBm unbal
Phantom Power 48 VDC
Power consumption .13 Amps AC at 120 VAC max.
.09 Amps AC at 120 VAC min.
Power requirements 120 VAC 60 Hz US model
240 VAC 50 Hz Export model
Internal Mains fuse .5 Amp Slo-blo type 3AG US model
.25 Amp Slo-blo 3AG Export model
AC dropout voltage 95 VAC
Size 1.75" H x 19" W x 6" D
Unit Weight 5.3 lbs
Shipping Weight 7 lbs
MIX-7 BLOCK DIAGRAM
BUSS LEFT
BUSS LEFT
BUSS RIGHT
BUSS RIGHT
COMBO
MIC/LINE
+48 VDC
m
BUSS LEFT
l
+
m
-
l
32 dB GAIN IN MIC
-20 TO +20 BASS/TREBLE
dB GAIN
CUT/BOOST
COMBO
MIC/LINE
1/2 MONO
+48 VDC
m
l
+
m
-
l
BUSS RIGHT
32 dB GAIN IN MIC
-20 TO +20 BASS/TREBLE
dB GAIN CUT/BOOST
VALUE
MALE XLR
MASTER MASTER MASTER
BASS TREBLE VOLUME
BUSS LEFT
SUM
STEREO/MONO MALE XLR
BUSS RIGHT
100 HERTZ 100 K HERTZ
RIGHT
LEVEL LEDs
+18
+8
0
-24
BUSS RIGHT
BUSS LEFT
POWER ON/OFF
FUSE
LINE
NEU
GROUND
LIFT
CHANNELS 1 AND 2
CHANNELS 3 AND 4
POWER ON/OFF
TOROID
LEFT
LEVEL LEDs
+18
+8
0
-24
+48 VDC
+18 VDC
-18 VDC
POWER ON