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SPEAKON® OUTPUTS
PV® 1600 utilizes 4-conductor Speakon connectors. Internally, the Speakons are wired with the Lows
on pins 1+ and 1- and the Highs on pins 2+ and 2-. These will properly mate with all Peavey speakers
that have Bi-amp inputs via Speakons. Note: For powering SP4 speakers, internal jumpers must be
connected inside the speaker terminal plate (see the instructions in the PV4 owners manual).
FAN GRILL
A two-speed DC fan supplies cool air to the amplier. THIS INTAKE SHOULD NEVER BE BLOCKED! The fan
switches to high speed automatically when the unit requires additional cooling. At idle and cool, the fan
should be in low speed. The fan should never stop unless the amplier is switched OFF or the AC mains
power source is interrupted.
COMBO INPUT CONNECTOR
The combo connector offers both female XLR and 1/4” phone jack balanced inputs. The XLR is wired with
pin 1 as ground, pin 2 positive input, and pin 3 negative input. The 1/4” phone jack is a tip/ring/sleeve
(3-conductor) type, with the tip being positive input, the ring negative input, and the sleeve ground. It is
important to realize that the XLR and the 1/4” jack in parallel. Use a male XLR or a 3-conductor phone
jack for balanced input. As an alternative, the 1/4” input can also be used with a regular tip/sleeve (2-
conductor) type plug commonly found on single-conductor shielded patch cords. In this case, the input
becomes unbalanced, with the tip as positive input, and the sleeve as ground (the ring being grounded
by the sleeve of the plug). An additional unique feature of this 1/4” input jack is something called a
quasi-balanced input. The sleeve of this jack is connected to chassis ground through a relatively low-val-
ue resistance that is part of a ground loop elimination circuit. This circuitry provides hum-free operation
when relatively short 1/4” cable patches are made to this input from various outputs on this amplier,
or from other equipment that shares the same rack with this amplier. The quasi-balanced circuitry is
automatic and virtually invisible in normal usage.
Rear Panel
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