Electrical: Speakers for a 64 cruiser

[michael_leslie]

hey all, i just purchased a 64 cruiser about a month ago and it was sold to me with all the speakers removed, would anyone happen to know of any speakers that would fit in the back behind the rear seats?

Thanks!

[Studebakercenteroforegon]

Original rear center speaker was a 4" X 10" for '64 - '66 models.

[Bud]

The rear deck speaker should be a 5X7 inch with an impedance of at least 8 ohms. The front speaker is a 4X10 inch with an impedance of 8 or more. Bud

[Studebakercenteroforegon]

The rear deck speaker should be a 5X7 inch with an impedance of at least 8 ohms. The front speaker is a 4X10 inch with an impedance of 8 or more. Bud

5 X 7 inch rear speaker was used through 1963 on Lark models.

[Swifster]

https://www.crutchfield.com

http://www.crutchfield.com/p_068D412UK/RetroSound-D-412UK-Dash-Speaker.html?tp=105

[michael_leslie]

thanks for all the info guys!!!

[gordr]

I am pretty sure the Delco radios used in that year required 10-ohm speakers, and that 8-ohm speakers are not an acceptable substitute. The output transistor needs to "see" a 10-ohm load in order for its bias current to be within spec. The type of transistor used, and its circuit design are a lot less forgiving of mis-matched speakers than were the old tube sets, or even the newer sets with multiple or stacked output transistors. Power-handling transistors that could drive a speaker were pretty new tech at the time.

[Quentin]

http://www.turnswitch.com/speakers.htm

this may help.

[Bud]

10 ohm speakers are not generally available unless you can find an NOS speaker. Any current production speakers will be either 4 or 8 ohm impedance. I've been using 8 ohm speakers for years on the transistor powered radios and haven't had any output transistor failures. Also keep in mind if a rear speaker is installed, it will need a potentiometer installed to balance the speakers like the original installations used to keep the speaker impedance high enough to keep the output transistor from going into thermal runaway. Bud

[Skybolt]

http://www.turnswitch.com/speakers.htm

this may help.

Thanks Quentin.

That link will help for future reference, especially when it comes time to match and wire in speakers to some of my old radios.

Len

[bezhawk]

http://www.turnswitch.com/speakers.htm

I have use these, and they sound better than new, and are the correct impedance.

[gordr]

That is a fine link. I will defer to them regarding the 8-ohm vs 10-ohm issue. Because they do agree that the common 4-ohm speakers are death to Delco radios.