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Quad 100 replace speaker [message #15266]

Thu, 17 February 2011 00:28

ehehat
Messages: 6
Registered: February 2011

Junior Member

Hi,

New here and just had one question:

i have had a quad 100dfx for several years now and am wanting to upgrade the sound a little. I have ordered a new Celestion g12t and as i am looking at the amp, the speakers are mounted into the front of the amp and i dont see a way to remove the front grill to get at the speaker screws. anyone know how to remove it?

thanks!!

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Re: Quad 100 replace speaker [message #15268 is a reply to message #15266]

Thu, 17 February 2011 15:15

ehehat
Messages: 6
Registered: February 2011

Junior Member

nevermind. I figured it out. Let me ask this: I am looking at putting a pair of Celestion g12t-75's in this amp. They are rated at 8ohms ea. Is there a reason I should NOT do this? would it hurt the speaker or amp to do one speaker at a time (eg- running with one 75 and one super 65 for a while)

thanks again!

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Re: Quad 100 replace speaker [message #15269 is a reply to message #15266]

Thu, 17 February 2011 18:05

chicagobill
Messages: 2006
Registered: April 2003

Senior Member

Welcome to the place.

I don't know much about your amp, but according to the owner's manual the power amp is rated 100 watts into a 4 ohm load. So the 2 G12T's should be fine.

Replacing them one at a time should not be a problem, assuming that the super 65 is also 8 ohms. In fact mixing of speakers will sometimes give you a better tonal range than just using two of the same speakers in a cabinet.

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Re: Quad 100 replace speaker [message #15270 is a reply to message #15269]

Thu, 17 February 2011 18:20

ehehat
Messages: 6
Registered: February 2011

Junior Member

FANTASTIC. This was exactly the kind of feedback I was looking for. All the homework I have done so far says the same thing I guess I was just looking for someone to address those specific speakers and yes, they are both rated 8ohm.

thank you!

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Re: Quad 100 replace speaker [message #15271 is a reply to message #15269]

Thu, 17 February 2011 18:21

ehehat
Messages: 6
Registered: February 2011

Junior Member

I am also assuming that, since the amp is 4ohm and the speakers are 8, they must be wired in parallel?

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Re: Quad 100 replace speaker [message #15272 is a reply to message #15271]

Thu, 17 February 2011 19:28

pleat
Messages: 1454
Registered: June 2004
Location: Belding, Mi

Senior Member

Mixing different brands of speakers, you will want to make sure they are phased the same. (Cones move in the same direction)
pleat

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Re: Quad 100 replace speaker [message #15273 is a reply to message #15272]

Thu, 17 February 2011 20:47

ehehat
Messages: 6
Registered: February 2011

Junior Member

the amp currently has celestion super 65's so the brand will stay the same. This should cover any phasing issues, shouldnt it?

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Re: Quad 100 replace speaker [message #15274 is a reply to message #15273]

Thu, 17 February 2011 22:53

pleat
Messages: 1454
Registered: June 2004
Location: Belding, Mi

Senior Member

It should, but you can use a small battery to test to make sure cone movement is the same.
pleat

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Re: Quad 100 replace speaker [message #15275 is a reply to message #15274]

Thu, 17 February 2011 23:36

ehehat
Messages: 6
Registered: February 2011

Junior Member

I really do appreciate all the advise. I should be getting the first g12t the middle of next week. I'll let you know how it goes!

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