Thank you for purchasing a Whirlwind ES4 digital snake module. The ES4T (transmitter) and the ES4R
(receiver) modules comprise a system that offers sixteen channels of professional quality microphone
preamplification and eight line level return channels via a choice of digital transport formats. The ES4T
uses a studio quality mic preamp for the most demanding of professional applications, offering low noise
and low distortion.
Each ES4T and ES4R can be configured for Cobranet®, Ethersound®, Dante®, or AVB® formats by simply
changing the network module in the unit. The exceptional performance, ease of use, and extreme flexibility
make the ES4 series products excellent I/O devices for any digital audio network. This manual will help you
get the most from your system so please read it, keep it handy, and refer to it if you have problems. It also
serves as a quick start guide for basic systems. If your system involves multiple splits, or interfacing with other
network devices, please refer to the expanded manual on the enclosed disc. Technical support is available at
800-733-9473 or [email protected].
Unpacking: Each ES4 snake module includes the device with the appropriate network card installed, an AC
power cord, a manual, and a disc with an expanded manual and CobraNet Discovery software on it. Keep the
packaging, in the unlikely event you need to return the unit for service, using the original packaging will help
insure a safe trip.
OPERATIONS MANUAL
WARRANTY
This product is guaranteed to be free from defects in materials and workmanship to the original purchaser for a period of 1 year 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.
whirlwind
99 Ling Road - Rochester, NY 14612
800-733-9473 / 585-663-8820 Fax: 585-865-8930
www.whirlwindusa.com
ES4
Overview:
The typical Whirlwind ES4 series digital snake system consists of two components: the ES4T
transmitter module, which has sixteen balanced mic/line inputs and eight line level outputs. The matching
ES4R receiver module has sixteen line level outputs and eight line level inputs. All inputs have variable gain
controls and LED level monitoring.
ES4 MULTI-PLATFORM AUDIO TRANSPORT SYSTEM
SPECIFICATIONS
MEASUREMENT
ES4T
ES4R
Input Frequency Response (Line)
Input Frequency Response (Mic)
Control in detent position
±.2 dBV 20 Hz - 20 kHz
±.2 dBV 20 Hz - 20 kHz
±.5 dBV 20 Hz - 20 kHz
Input THD + N Line Mode
Input THD + N Mic Mode
<.0015% 20 Hz - 20 kHz
<.0022% 20 Hz - 20 kHz
<.0012% 20 Hz – 20 kHz
Mic Mode Equivalent Input Noise
-124.3 dBV
Total Gain
50 dBV
20 dBV
Gain of Microphone Preamp
Mic/Line switch (in) +30 dBV
Range of level pot
-40 to +20 dBV
-20 to +20 dBV
Common Mode Rejection of Input
>60 dB
>60 dB
Maximum Input level
Line +19 dBV; Mic –10 dBV
+19 dBV
Input Impedance
Mic and Line 2 kOhms
20 kOhms balanced
Noise at unity gain (potentiometer
at center)
Line –101 dBfs
Mic (30 dBV gain) –95 dBfs
Line –105 dBfs
Isolation between input channels
Line 126 dB @ 1 kHz
Mic (40 dBV gain) 110 dB@ 1 kHz
122 dB
Digital conversion
24 Bit/48 kHz
24 Bit/48 kHz
Output Frequency Response
±.23 dBV 20 Hz - 20 kHz
±.1 dBV 20 Hz - 20 kHz
Output THD + N
<.0025% 20 Hz – 20 kHz
<.0024% 20 Hz – 20 kHz
Noise output
-89 dBV
-95 dBV
Maximum output level
+20 dBV balanced
+12 dBV balanced
Output Impedance
200 Ohms balanced
200 Ohms balanced
Isolation between output channels 124 dB
124 dB
LED thresholds
Red LED –2 dBfs; ± 1 dBfs
Green LED –30 dBfs; ± 3 dBfs
Red LED –2 dBfs; ± 1 dBfs
Green LED –30 dBfs; ± 3 dBfs
Phantom Power
48 VDC
None
Power consumption
.8 Amps AC at 120 VAC max.
.31 Amps AC at 120 VAC min.
.47 Amps AC at 120 VAC max.
.26 Amps AC at 120 VAC min.
Power requirements
100-240 VAC 50-60 Hz
100-240 VAC 50-60 Hz
Internal Mains fuse
2 Amp Slow Blow type 3AG
2 Amp Slow Blow type 3AG
AC dropout voltage
90 VAC
90 VAC
Size
5.25 H x 19.0 W x 12.5 D inches
3.5 H x 19.0 W x 12.5 D inches
Unit Weight
12 lbs
9.5 lbs
Shipping Weight
15 lbs
12 lbs
Specifications subject to change without notice.
G
G C
C H
H G
G C
C H
H G
G C H
C H G
G C
C H
H G
G C H
C H G
G CH
CH
G
G C
C H
H G
G C
C H
H
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
Pin-out for TASCAM DB25 8 Channel Balanced Connector
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
9
9
1
10
0
1
11
1
1
12
2
13
13
1
14
4
1
15
5
1
16
6
1
17
7
1
18
8
1
19
9
2
20
0
2
21
1
2
22
2
2
23
3
2
24
4
25
25
H = HOT
C = COLD
G = GROUND
