Ashly TRA-4150 manual Powerflex, AC Inlet

Operating Manual - Powerflex Multi-Channel Power Amplifier

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P o w e r f l e x 6250 shown - P o w e r f l e x 4400 only has channels 1-4 with no 70V output.

BRIDGE MODE: Take Output					Ashly Audio Inc.					Dual Stereo/Dual Mono Mode:
From Two Red Posts.										150W/Chan - 8Ω
					Made In USA
Do Not Connect Either Output										250W/Chan - 4Ω
					Powerflex 6250
Wire To Ground.										Bridged Mono Mode:
						OUTPUTS					Ω
										500W Bridged - 8
	Bridge/70V				Bridge/70V				Bridge/70V
+		-		+			-		+	-
(+)			(+)	(+)			(+)	(+)		(+)
Ch1			Ch2	Ch3			Ch4	Ch5			Ch6
(-)			(-)	(-)			(-)	(-)		(-)

The Powerflex 6250 is capable of three channels of bridged output, while the Powerflex 440 is capable of two channels of bridged output. To use bridged mode, first press MONO from the Stereo/Mono switch on the channel pair to be bridged. This sends the same audio signal to both channels. Then press BRIDGE from the Dual/Bridge switch on the channel pair to be bridged. This inverts the phase of the input signal to the second channel. These two channels are now operating together in Bridged Mono mode, and the output must be taken from the two red binding posts corresponding to the bridged channel pair Observe polarity by noting which red binding post is

(+) and which is (-)

7.8Speaker Outputs - Binding Posts Dual binding posts provide connections for the

speaker outputs. In addition to using the banana-type plug, the binding posts have a slotted entry-way for wire-crimped spade terminals. In BRIDGE/70V mode, the channel 1, 3, or 5 red binding post is the (+) in-phase speaker output terminal and the channel 2, 4, or 6 red binding post be- comes the (-) out-of-phase speaker terminal.

1.) Unplug the amplifier from the wall and re- move the power cord from the rear of the amplifier.

2.) Using a small screwdriver as a lever, unlatch the fuse holder in the AC inlet and remove it.

3.) Remove the voltage selection insert and ro- tate until the new nominal mains voltage level indication (115 or 230) is on top and properly oriented for reading.

4.) Replace the voltage selection insert in the AC inlet, making sure that it is plugged in all the way.

5.) Replace the fuse with the appropriate size (see #6 below), and press the fuseholder back into the AC inlet until it latches.

6.) Using a power cord of the appropriate size and with the appropriate terminations, plug the cord into the rear of the amplifier and then into the wall. The Powerflex amplifier is now ready for use at the new mains voltage.

CAUTION! NEVER CONNECT THE TWO RED BINDING POSTS TOGETHER OR CONNECT EITHER RED BINDING POST TO A BLACK BINDING POST!

7.9AC Inlet

Powerflex amplifiers can be configured by the cus- tomer for operation at either 115VAC or 230VAC mains. Switching from one to the other simply requires the fol- lowing steps:

If the mains voltage is 110-125VAC, the required fuse is MDA 12, 250V, and the required power cord is 3- wire grounded, 13 Amp (16AWG) minimum.

If the mains voltage is 220-250VAC, the required fuse is MDA 10, 250V, and the required power cord is 3- wire grounded, 10 Amp (18AWG) minimum.

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