Samson Headphones 88 User Guide

OWNER'S MANUAL  
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Important Safety Information  
1. Read these instructions.  
2. Keep these instructions.  
3. Heed all warnings.  
13. Unplug the apparatus during lightening  
storms, or when unused for long periods of  
time.  
14. Refer all servicing to qualified personnel.  
Service is required when the apparatus has  
been damaged in any way, such as power  
supply cord or plug is damaged, liquid has  
been spilled or objects have fallen into  
the apparatus has been exposed to rain or  
moisture, does not operate normally, or has  
been dropped.  
4. Follow all instructions.  
5. Do not use this apparatus near water.  
6. Clean only with dry cloth.  
7. Donotblockanyventilationopenings. Install  
in accordance with the manufacturer’s  
instructions.  
8. Do not install near any heat sources such  
as radiators, heat registers, stoves, or  
other apparatus (including amplifiers) that  
produce heat.  
15. This appliance shall not be exposed to  
dripping or splashing water and that no  
object filled with liquid such as vases shall  
be placed on the apparatus.  
9. Do not defeat the safety purpose of the  
polarized or grounding type plug. A polarized  
plug has two blades with one wider than  
the other. A grounding type plug has two  
blades and a third grounding prong. The  
wide blade or the third prong are provided  
for your safety. If the provided plug does not  
fit into your outlet, consult an electrician for  
replacement of the obsolete outlet.  
16. Caution-to prevent electrical shock, match  
wide blade plug wide slot fully insert.  
17. Please keep a good ventilation environment  
around the entire unit.  
18. The direct plug-in adapter is used as  
disconnect device, the disconnect device  
shall remain readily operable.  
19. Batteries (battery pack or batteries installed)  
shall not be exposed to excessive heat such  
as sunshine, fire or the like.  
10. Protect the power cord from being walked  
on or pinched particularly at the plugs,  
convenience receptacles, and at the point  
where they exit from the apparatus.  
11. Only use attachments/accessories specified  
by the manufacturer.  
12. Useonlywiththecart, stand, tripod, bracket,  
or table specified by the manufacturer, or  
sold with the apparatus. When a cart is  
used, use caution when moving the cart/  
apparatus combination to avoid injury from  
tip-over.  
If you want to dispose this product, do not mix it with general household waste. There is a  
separate collection system for used electronic products in accordance with legislation that  
requires proper treatment, recovery and recycling.  
Private household in the 28 member states of the EU, in Switzerland and Norway may return  
their used electronic products free of charge to designated collection facilities or to a retailer (if you  
purchase a similar new one).  
For Countries not mentioned above, please contact your local authorities for a correct method of  
disposal.  
By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery  
and recycling and thus prevent potential negative effects on the environment and human health.  
AirLine 88 Headset Wireless System  
3
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Important Safety Information  
FCC Rules and Regulations  
Samson wireless receivers are certified under FCC Rules part 15 and transmitters are certified  
under FCC Rules part 74.  
Licensing of Samson equipment is the user’s responsibility and licensability depends on the user’s  
classification, application and frequency selected.  
This device complies with Part 15 of the FCC rules Class B and RSS-210 of Industry & Science  
Canada.  
Operation is subject to the following two conditions:  
(1) This device must not cause harmful interference, and  
(2) This device must accept any interference received including interference that may cause  
undesired operation. Suitable for home or office use.  
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital  
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable  
protection against harmful interference in a residential installation. This equipment generates,  
uses and can radiate radio frequency energy and, if not installed and used in accordance with  
the instructions, may cause harmful interference to radio communications. However, there is no  
guarantee that interference will not occur in a particular installation. If this equipment does cause  
harmful interference to radio or television reception, which can be determined by turning the  
equipment off and on, the user is encouraged to try to correct the interference by one or more of  
the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment into an outlet on a circuit different from that to which the receiver is  
connected.  
Consult the dealer or an experienced Radio/TV technician for help.  
WARNING: Changes or modifications not expressly approved by the party responsible for  
compliance could void the user’s authority to operate the equipment.  
This equipment is intended for use in wireless microphone applications.  
Equipment is intended for sale in: AT, BE, CH, CY, CZ*, DK, EE, FI*, FR*, DE*, GR*, HU, IE, IS,  
IT, LV, LT*, LU, MT*, NL, NO*, PL* PT, RO, SK, SI, ES, SE, UK  
*Subject to license. Please contact your national frequency authority for information on avail-  
able legal use in your area. Any changes or modifications not expressly approved by Samson  
Technologies Corp. could void your authority to operate the equipment.  
Hereby, Samson Technologies Corp., declares that this CR88 and AH8 is in compliance with the  
essential requirements and other relevant provisions of Directive 2014/53/EU. The declaration of  
conformity may be consulted at:  
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Quick Start  
In order for your wireless system to work correctly, both the receiver and transmitter must be set to  
the same channel. Follow this basic procedure for setting up and using your AirLine 88 Headset  
wireless system:  
Physically place the CR88 receiver where it will be used, and extend the antennas  
vertically. The general rule of thumb is to maintain “line of sight” between the receiver  
and transmitter so that the person using or wearing the transmitter can see the receiver.  
With the CR88 powered off, connect the included power adapter. Turn the CR88 on  
momentarily to confirm that the unit is receiving power. You’ll see the LED display light  
up. Then turn the CR88 power off.  
With your amplifier or mixer off  
and volume control all the way  
down, connect the CR88 receiver  
This device complies with Part 15 of the  
FCC Rules. Operation is subject to the  
following two conditions:  
(1) This device may not cause harmful  
interference, and  
FREQ:  
542-566MHz  
(2) this device must accept any  
interference received, including  
interference that may cause  
undesired operation.  
output jack to the mic or line  
level input of a mixer or amplifier  
using the balanced XLR output or  
unbalanced ¼” line level output.  
Turn the Level knob on the CR88  
completely counterclockwise, then  
turn its power on.  
Press the SELECT button on the front of  
the CR88 receiver to choose an available  
channel. The channel number will increase  
by one digit, from 0-9 then A-F. Once the  
last channel has been reached, the count  
will cycle back to 0.  
Make sure the AH8 Headset transmitter  
is fully charged (see section Charging the  
AH8 Transmitter) Turn on the power to the  
transmitter by pressing and holding the  
Power button for 3 seconds; the indicator  
LED will light yellow when the button is  
pressed and turns green when released and  
the AH8 is powered on.  
AirLine 88 Headset Wireless System  
5
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Quick Start  
Position the transmitter about 6-12” (15-30 cm) from the front of the CR88 with  
the transmitter’s IR window facing the IR transmitter on the front panel of the CR88  
receiver.  
Press and hold the CR88 SELECT button to set the transmitter to the same channel as  
the receiver via infrared transmission. The CR88 display will flash while the receiver is  
sending the operating channel.  
Note: The AH8 will only accept infrared transmission from the receiver for  
the first 10 seconds after the AH8 is powered on. If you need to change  
the operating channel, the AH8 must be first powered off, then powered on  
again to receive the new channel.  
When the transmission is complete, the CR88  
will receive RF signal from the transmitter.  
The READY indicator will light on the front  
panel of the CR88 receiver.  
Turn on your connected amplifier or mixer,  
but keep the volume all the way down. Set the  
Volume knob on the CR88 fully clockwise (to  
its “10” setting). This is unity gain.  
Speak or sing into the microphone. Slowly  
raise the volume of your amplifier or mixer  
until the desired level is reached.  
If you find the system has noticeable  
dropouts, reduced overall working range,  
or unexpected noise bursts, change the  
operating channel of the system using the  
steps above.  
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Quick Start  
If you hear distortion at the desired volume level, check to see whether the PEAK Indicator  
LED on the receiver is lighting RED. If it is not lit, make sure that the gain structure  
of your audio system is set correctly (consult the owners manual of your mixer and/or  
amplifier for details). If the PEAK Indicator on the receiver lights RED, it may be as simple  
as moving the microphone further from your mouth.  
If the level of the microphone needs further  
adjustment, press and hold the AH8 “+” or “–”  
level buttons until the indicator starts flashing  
indicating that the transmitter is in the Volume  
Adjustment mode. Press the “+” button to raise  
the level or the “–” button to lower the level. As  
the level increases the indicator flashes faster.  
When the level decreases the indicator flashes  
slower. When the desired level is reached,  
release the volume buttons. The AH8 will return  
to normal operation after 10 seconds, and the  
Status Indicator will be steady GREEN.  
For best signal to noise performance, set the AH8 transmitter volume so that the PEAK  
indicator on the CR88 receiver flashes occasionally when speaking or singing with your  
loudest voice.  
Multiple System Setup  
When using multiple systems, each system must be set to a different operating channel.  
Transmitter and receiver pairs must be on the same channel plan in order to work  
together.  
When setting an additional transmitter, make sure to move all other transmitters away  
from the receiver to ensure that the transmitter is not accidentally reset.  
AirLine 88 Headset Wireless System  
7
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Charging the AH8 Transmitter  
1. Snap in place the appropriate mains connector plug  
into the adapter.  
2. Insert the magnetic power cable to the included USB  
AC plug (or any 5-volt DC adapter that has a USB  
port). Insert the AC plug into an electrical outlet.  
3. Place the AH8 transmitter on a flat surface.  
4. Attach the magnetic connector to the gold contact  
power port on the bottom of the AH8 transmitter.  
The cable attaches to the port magnetically.  
The magnetic connector is keyed so it will only  
connect in one direction.  
Note: Transmission is disabled during charging.  
5. Look at the indicator light on the AH8 transmitter  
to determine when the transmitter has finished  
charging. When the light is flashing red, the AH8  
is charging. When the red light stops flashing it  
indicates that the AH8 is fully charged.  
6. Disconnect the magnetic power cable from the AH8  
when the unit is fully charged.  
If you notice your AH8 battery life is becoming shorter  
after a full charge, you can order a user replaceable  
battery from your local Samson distributer.  
Getting the most out of the rechargeable battery:  
Completely charge the batteries before first use  
Fully charge the battery before it will be used.  
After the battery is charged, unplug the charger from the outlet or  
remove the battery from the charger.  
The optimal temperature range for using and storing the battery is  
50°F - 86°F (30°C - 50°C). The battery performance and operation  
may decrease in temperatures below 50°F (30°C).  
A warning that batteries (battery pack or batteries installed) shall not be exposed to  
excessive heat such as sunshine, fire or the like.  
CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the  
same or equivalent type attention should be drawn to the environmental aspects of battery  
disposal  
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Wearing the AH8 Transmitter  
The AH8 can be re-sized to fit comfortably on your head. The correct way to wear your AH8  
Headset transmitter is over the ears, as you would wear a pair of eyeglasses. Because the AH8  
Headset is specially designed to be used up close, be sure to position the microphone near the  
corner of your lips. To avoid feedback problems, take care not to cover the mic capsule with  
your hand.  
Position the AH8 over your head so that the body  
of the transmitter is behind your head. Adjust the  
headset so that it fits comfortably on your ears and is  
secure against your head.  
Note: If wearing glasses, it is recommended to put the  
AH8 transmitter on first than place glasses over the  
transmitter.  
If the AH8 headset is too large, push the sides of the  
headband in to decrease the width. If the transmitter  
is too small, pull the sides of the headband out to  
increase the width.  
The ear hooks can be adjusted by either bending down  
or up. This will decrease or increase the length of the  
headset.  
Position the microphone towards the corner of your mouth, approximately 1/2” away from  
the lips.  
To help reduce p-popping, install one of the (4) included windscreens.  
Cleaning the AH8 transmitter:  
The headset, microphone and gooseneck should be cleaned after each  
use. Use clean, fresh water on a towel or clean rag, gently wiping away any  
contaminations that may have accumulated during use.  
The windscreens should be washed with clean water after each use.  
AirLine 88 Headset Wireless System  
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AH8 Headset Transmitter Callouts  
1
4
3
5
2
6
1. Power/Mute Button - Press and hold for 3 seconds to turn the unit on or off. A quick  
press and release will mute or unmute the transmitter when the transmitter is on.  
2. Status Indicator - This LED displays the operation mode, low battery and recharge  
status of the transmitter. The chart defines the LED colors for each function.  
GREEN  
AMBER  
Normal Operation  
Mute  
Low Battery  
Charging  
Flashing RED  
RED  
Fully Charged  
3. Volume +/– Buttons - Press and hold either Volume button to adjust the volume.  
Pressing the + or – button increases or decrease the level by one step with each  
push of the button. There is a total 6 volume levels. The Status Indicator light will  
flash faster for each increased step and slower for each decrease.  
4. IR Lens - This window is used to capture the infrared signal sent from the receiver  
during the IR SET to channelize the transmitter. The IR Lens is only active for the  
first 10 seconds when the transmitter is powered on.  
5. Charging Connector - Connect the supplied magnetic charging cable to this  
sealed, gold contact charging connector to recharge the internal Lithium Ion  
battery. The AH8 can be recharged by connecting the cable to a USB connector  
on a computer USB port, or any 5-volt DC adapter that has a USB output.  
NOTE: The included adapter will charge the AH8 faster than a computer USB port.  
6. Microphone - Waterproof, micro-miniature, unidirectional microphone capsule in a  
marine-grade stainless steel housing.  
10  
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CR88 Receiver Front Callouts  
1
2
3
4
5
6
7
8
1
1. Antennas - The antenna mountings allow full rotation for optimum placement. In  
normal operation, both antennas should be placed in a vertical position. Both  
antennas can be folded inward for convenience when transporting the CR88.  
2. VOLUME Control - This knob sets the level of the audio signal being output through  
both the balanced and unbalanced output jacks on the rear panel. Reference level  
is obtained when the knob is turned fully clockwise (to its “10” setting).  
3. READY Indicator - This indicator lights green when the CR88 is synced with the AH8,  
receiving RF signal and the system is ready to use.  
4. PEAK Indicator - This indicator lights red when the transmitted audio signal is near  
clipping or overloaded.  
5. LED Display - The 7-segment LED display shows the receiver's current operating  
channel. The CR88 channels are indicated by 0-9 and A-F.  
6. IR Transmitter - During “IR SET” an infrared light is used to set the transmitter  
channel.  
7. SELECT Button - Press this button to cycle through the receiver's operating channels.  
Press and hold this button to send the channel information to the transmitter via  
infrared transmission.  
8. POWER Switch - Use this to turn the CR88 power on and off.  
AirLine 88 Headset Wireless System  
11  
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CR88 Receiver Rear Callouts  
This device complies with Part 15 of the  
FCC Rules. Operation is subject to the  
following two conditions:  
(1) This device may not cause harmful  
interference, and  
(2) this device must accept any  
interference received, including  
interference that may cause  
undesired operation.  
FREQ:  
542-566MHz  
1
2
3
1. DC Input - Connect the supplied power adapter here, using the strain relief as shown  
in the illustration below. WARNING: Do not substitute any other kind of power  
adapter. Doing so can cause severe damage to the CR88 and will void your warranty.  
2. BALANCED OUTPUT - Use this electronically balanced low impedance (600 Ohm)  
XLR jack when connecting the CR88 to professional (+4dBu) audio equipment. Pin  
wiring is as follows: Pin 1 ground, Pin 2 high (hot), and Pin 3 low (cold).  
3. UNBALANCED OUTPUT - Use this unbalanced high impedance (5K Ohm) ¼" jack  
when connecting the CR88 to consumer (-10dBV) audio equipment. Wiring is as  
follows: tip hot, sleeve ground.  
Using the strain relief: To keep the adapter from accidentally  
disconnecting from the receiver, gather up a loop of wire and  
pass it through the strain relief, then pass the adapter plug  
through the loop.  
12  
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Rack Mounting  
The CR88 receiver can be installed into a standard 19” rack for transport or permanent  
installation using the included rack ears. Follow the simple steps below to mount the CR88:  
Attach the included rack ears by sliding each rack ear  
into the groove on either side of the CR88 until they  
lock into place, and the receiver flush with the front  
panel.  
Position the CR88 receiver into an  
available rack space and slide in until  
the rack ears are touching the rails of  
the rack case and are aligned with the  
rack rail holes.  
Mount the receiver into the rack using the appropriate size rack screws (not included). To  
ensure equal tension and balance when installing the receiver, you should secure screws  
in a crisscross pattern of opposite corners: top left -> bottom right -> top right -> bottom  
left.  
In order to mount two CR88 receivers in  
one rack space, the system includes a  
center connection piece. Slide the center  
connection piece into the groove of each  
receiver and attach the short rack ears to  
each receiver. Mount the receivers into  
the rack using the crisscross pattern  
described above.  
Note: Receivers should be mounted in the top rack position with additional audio  
units mounted below. Digital audio devices should be mounted as far as possible  
below the CR88 receivers.  
AirLine 88 Headset Wireless System  
13  
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Channel Plans  
Group K  
470-494 MHz  
Group D**  
542-566 MHz  
Group G*  
863-865 MHz  
Ch  
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Freq  
Ch  
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Freq  
Ch  
0
1
2
3
4
5
6
7
8
Freq  
470.125  
471.625  
473.050  
474.425  
474.900  
477.525  
479.100  
480.475  
482.000  
484.075  
486.975  
487.975  
489.050  
490.975  
492.425  
493.975  
542.125  
543.625  
545.05  
863.050  
863.250  
863.550  
863.750  
864.050  
864.250  
864.550  
864.750  
864.950  
546.425  
546.900  
549.525  
551.100  
552.475  
554.000  
556.075  
558.975  
559.975  
561.050  
562.975  
564.425  
565.975  
* Not for use in the USA and Canada.  
** Not for use in the EU.  
For questions regarding available channels in your area contact your local Samson distributor.  
14  
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Specifications  
System  
Working Range  
Audio Frequency Response  
T.H.D. (Overall)  
Dynamic Range  
Signal to Noise  
300' (100m) line of sight  
50 Hz - 15 kHz  
<1% (@AF 1 kHz, RF 46 dBu)  
>100 dB A-weighted  
>95 dB  
Operating Temperature  
Tone Key Frequency  
–10°C (14°F) to +60°C (+140°F)  
32.768 kHz  
AH8 Headset Microphone Transmitter  
Microphone Element  
Microphone Polar Pattern  
Input Gain Range  
Condenser Mic  
Unidirectional  
20dB  
RF Power  
10mW EIRP  
Power Requirements  
3.6V500mA/h,  
Lithium Ion rechargeable battery  
6 hours  
Battery Life  
Dimensions (LxWxH)  
5.9” x 6.7” x 3.9”  
150mm x 170mm x 100mm  
(Depending on the shape of headset arm  
and gooseneck mic)  
0.13lb / 60g  
Weight  
CR88 Receiver  
Audio Output Level - Unbalanced  
Audio Output Level - Balanced  
Audio Output Impedance - Unbalanced  
Audio Output Impedance - Balanced  
Sensitivity  
+14 dBu  
+9 dBu  
810 Ohms  
240 Ohms  
-100 dBm / 30 dB sinad  
>50 dB  
Image Rejection  
Operating Voltage  
Dimensions (LxWxH)  
15 VDC 200mA  
8.25" x 4.9" x 1.75"  
210mm x 125mm x 44mm  
0.85lb / 388g  
Weight  
At Samson, we are continually improving our products, therefore specifications and  
images are subject to change without notice.  
AirLine 88 Headset Wireless System  
15  
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Samson Technologies  
45 Gilpin Avenue  
Hauppauge, New York 11788-8816  
Phone: 1-800-3-SAMSON (1-800-372-6766)  
Fax: 631-784-2201  
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