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I neeed wiring diagram for washburn kc-70v - Amplifiers & Preamps

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How to Wired a Transformer HT87 70V. to A Speakercraft Ruckus.


Please explain better, and stop being "anonymous". Can not help much with your info...

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Schematic diagram


There are lots of them however without knowing what you have!!!!

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No voltage on 70v output


replace the output transitors, or IC that does the amplifying.

Oct 31, 2013 | Bogen Communication GS100 Amplifier

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How to activate 70v line of crest audio cki 800v


First of all the 70 volt line is used when we are dragging long lengths of speaker wires. hence to counter the drop we use a high voltage line brring it further down without any remarkable drop and use a step down matching transformer to power the speaker according to the impedance of the speaker to the secondary of the transformer. Connect the 70 volt to the 70 volt output in the amplifier. Now connect the other end of the wires tto the primary of the 70 volt transformer. Use the secondary output to connect to the speaker using the tap most suitable..2, 4,6,8 ohms . Check the phasing when you connect or reverse if the bass quality is less.
Hope this helps. Good day

Jun 29, 2010 | Crest Audio CKi 800v Amplifier

1 Answer

I have a roland keyboard mixing amplifier, KC-550. With an ipod plugged in, its only playing one channel, regardless of which channel I plug into, and the keyboard is also not sounding full. Not sure if...


The KC-550 is a MONAURAL amp and since the Ipod emits STEREO you have to use a special cable to MIX both the left and right from the Ipod into a single, monaural signal.

You can MAKE a cheapy mixer that will serve your purpose by using a series resistor, say 1K from each of the two Ipod output channels to go to the single mono input to the KC-550.

I would build it this way: Find an old IPOD cable or any 1/8 inch stereo cable and seperate the two wires and the shield. In a 1/4 inch plug, connect the shield from the Ipod cable to the shield (barrel sleeve) of the 1/4 inch plug. Connect one lead of each of TWO 1K resistors to the TIP connection of the 1/4 inch plug. Connect each of the two signal leads from the Ipod to the two remaining floating resistor leads. Insulate the splices.

DON'T forget to put the shell for the 1/4 inch plug over the cable before connecting the cable to the 1/4 inch jack. All parts should be readily available at Radio Shack.

I don't know that I have ever seen a suitable ready made mixer cable for this function.

Nov 21, 2009 | Roland Amplifiers & Preamps

1 Answer

I hope you can help:-) I have a Realistic 35 watt solid state P.A. amplifier and on the back of the amp is this: 70V 16 8 4 COM There are holes under them for wires, how do I hook up the speakers to this...


This would depend on if you are using 4,8,16 ohm speakers or a 70v system.

For regular speakers the (-) wire would go to the COM terminal
the (+) would go to either the 4,8 or 16 ohm terminal (Check on the speaker itself for the "impedance").

If more then one speaker is used then there is some other math involved, but i can help with that.

The 70V terminal is used when powering a bunch of celing speakers like in stores and malls. Each speaker has its own transformer on it, all the transformers are connected togeather in a chain and wired to the COM and 70V terminals.

Nov 13, 2009 | Amplifiers & Preamps

1 Answer

I need a wiring diagram for a 1986 strat style washburn guitar with humbucker and two single coils pickups. three toggle switches and a volume and a tone knob


Hi vallast

Here is a diagram on how to wire your 3 toggle setup.
3cd7a58.gif There are endless variations on how to do it. Pickups can be switched in and out of phase, in parallel or series.

Check out here for more details on the above wiring diagram.

Strat style wiring is done with a 5 way switch generally. Using the toggles allows you to rephase vitually all the pickups getting heaps of different tones. Thanks for using FixYa, good luck. A decent guitar Tech can easily help you to rewire your Axe. If you get stuck. hit me back here and I will help you further:) Cheers.


regards
robotek

Apr 13, 2009 | Amplifiers & Preamps

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