Getting Started Connections Setup Playback Remote Control Multi-Zone Information Troubleshooting
ENGLISH
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 (R)
 (L)  (R)  (L)  (R)
 (L)  (R) (L)
Speaker Connections
Example: 5.1-channels (FRONT A+B) and ZONE2 use
Front speakers
A
Center speaker
Subwoofer
Subwoofer 
with built-in 
amplifier
Surround speakers  ZONE2 speakers
ZONE2
When using just one surround back speaker, connect it to the left channel (SBL).
NOTE
By default, the AVR-1508’s “Amp Assign” setting is set to “ZONE2”.  To use as the surround back speaker 
for the main zone, change the “Amp Assign” setting (vpage 24).
b L : Left
  R : Right
Getting Started Connections Setup Playback Remote Control Multi-Zone Information Troubleshooting
Front speakers
B
Connecting the Speaker Cables
Carefully  check  the  left  (L)  and  right  (R)  channels 
and + (red) and – (black) polarities on the speakers 
being connected to the AVR-1508, and be sure to 
interconnect the channels and polarities correctly.
1
Peel off about 0.03 ft/10 mm 
of sheathing from the tip of 
the speaker cable, then either 
twist the core wire tightly or 
terminate it.
2
Turn  the  speaker  terminal 
counterclockwise  to  loosen 
it.
3
Insert  the  speaker  cable’s 
core wire to the hilt into the 
speaker terminal.
4
Turn  the  speaker  terminal 
clockwise to tighten it.
When using a banana plug
Tighten  the  speaker  terminal  firmly  before 
inserting the banana plug.
NOTE
• Use  speakers  with  an  impedance  of  6  to  16 
Ω/ohms.  When  using  front  A  and  B  speakers 
simultaneously, use speakers with an impedance 
of 12 to 16 Ω/ohms.
• Connect  the  speaker  cables  in  such  a  way  that 
they  do  not  stick  out  of  the  speaker  terminals. 
The protection circuit may be activated if the core 
wires touch the rear panel or if the + and – sides 
touch each other (v “Protection circuit”).
• Never  touch  the  speaker  terminals  while  the 
power supply is connected. Doing so could result 
in electric shock.
Protection circuit
If speakers with an impedance lower than specified 
(for example 4 Ω/ohms speakers) are used for an 
extended period of time with the volume turned 
up high, the temperature may rise, activating the 
protection circuit.
When  the  protection  circuit  is  activated,  the 
speaker output is shut off and the power indicator 
flashes  red.  If  this  happens,  unplug  the  power 
cord, then check the speaker cable and input cable 
connections. If the set is extremely hot, wait for it 
to cool off and improve ventilation around it. Once 
this is done, plug the power cord back in and turn 
the set’s power back on.
If  the  protection  circuit  is  activated  again  even 
though  there  are  no  problems  in  the  ventilation 
around the set nor in the connections, the set may 
be damaged. Turn  the power off, then contact a 
DENON service center.