Panasonic RAMSA WS-A240 Operating Instructions Manual page 5

CONNECTION OF SPEAKER CABLES
There are two types of speaker input terminals which should be selected according to applications. (The three terminals
are internally connected in parallel.)
* Use of push-terminals
NOTES:
* The cable which fits in the hole of the push-terminal,
should have a diameter not larger than 7/647 (2.6 mm).
To ensure proper fit to the terminal, a cable diameter
From amplifier of less than 5/64" (2 mm) is recommended.
output terminals. * The sheath of the speaker cable should not be inserted
into the terminal hole.
e When the speaker cable is of a stranded type, the core
conductor should be twisted before inserting it into the
terminal hole.
Depress the push-terminal and insert the
speaker cable from the ampltilier into the ter-
minat hole. The plus ( + } side is marked red and
the minus (- | side marked black. NOTES:
e Connect the speaker cable to a tip-sleeve (TS) phone
plug, then connect it to either jack.
* Use of phone jacks e The other jack is then used when installing an additional
speaker in parallel.
From amplifier
output terminals.
~N TS phone plug
VM
Pa rp =
NN { ||
wa The speaker uses a TS phone |
plugs as an input terminal. When Plug cover i-} (sleeve)
N connecting, make sure that the |
3 polarity of the TS phone plug |
t matches the polarity of the ampli- i
* Installation of additional speakers | fier output terminals (speaker ter- Speaker cable {+} (tip) |
| minal) as shown in the illustration. l
Connect the speakers in parallel as shown below. NAN I NGANG AE ath speed ait e ee a HRS J
When two speakers are connected in parallel, the combined
impedance becomes 4 ohms. In this case, the speakers
should be connected to an amplifier which is designed to
drive a load impedance of 4 ohms or less.
From amplifier output terminals.
NOTES:
+ When three or more speakers are connected in parallel,
the combined impedance becomes 3 ohms or less
which requires a special type of amplifier. Therefore,
do not use more than two speakers for parallel con-
nection.
+ If the combined impedance of the speakers is lower than
the specified impedance on the amplifier to be used,
the sound from the speakers may be distorted or the
amplifier may be damaged.
* When two speakers are used in parallel, make sure that
the polarities of these speakers are the same.
From amplifier output terminals,