Definitive Technology BP-9040

[MandyinCal]

Hi all,

Hoping someone here can help me out. I have a set of these speakers and recently the amp on one of them went out. Def Tech sent me the piece, said it is super simple to slide out/plug and play - but I have never done anything like this before and I am worried I will cause more harm than good unless I consult someone here.

Here are their instructions followed by their photos of what I am looking at;

"To replace the BP9040 amp, you must remove all the fasteners around the outside edge of the back plate. Once they are removed, the whole plate will come loose from the back. There are a number of cables attached to the amp plate, including cables for all of the binding posts, as well as a small fine cable for the front LED and two cables for the active subwoofer. We typically recommend taking pictures before unplugging all these cables, to serve as a guide for how to reconnect the new amplifier. Once these cables are all removed, the old amplifier can be set aside, and the new amplifier simply needs to be plugged into the existing cables and fastened back onto the tower. "

I was able to get the back plate off, but from there I am not sure. They say "plug and play" but again, I cannot figure this out.

Mandy.

 

[lovinthehd]

Don't the old amp and new amp connections/fittings look the same so all you have to do is match the particular connections (by color/size)? Those are just crimp/spade type connectors under the heatshrink, sometimes take a firm tug to get off, be careful not to break the spade part off (ask me how I know )

 

[ParisB]

I had to replace the amp on my 9060s. I took a picture and reconnected the exact same way on the new amp. It was exact match...are you saying your new one looks different?

 

[MandyinCal]

Don't the old amp and new amp connections/fittings look the same so all you have to do is match the particular connections (by color/size)? Those are just crimp/spade type connectors under the heatshrink, sometimes take a firm tug to get off, be careful not to break the spade part off (ask me how I know )

Ha! This was my exact concern, I would "yank and break" as opposed to "plug and play".

So do I not need any tools? (aside from the obvious screwdriver to remove the back panel)

 

[MandyinCal]

I had to replace the amp on my 9060s. I took a picture and reconnected the exact same way on the new amp. It was exact match...are you saying your new one looks different?

So they definitely are the same, DefTech just harped on "plug and play" and I pulled (what I thought was) pretty firmly and nothing came apart. I was not sure if additional tools are needed or something.

You didnt happen to make a video or have the play by play on how you replaced yours, do you?

 

[lovinthehd]

Ha! This was my exact concern, I would "yank and break" as opposed to "plug and play".

So do I not need any tools? (aside from the obvious screwdriver to remove the back panel)

Some can be kinda tough to pull off....it was on a driver's terminal I broke off a spade by not being careful. Pulling firmly straight up, perhaps with some needlenose pliers to help out....I don't know of a particular tool to help out tho.

 

[ryanosaur]

Those "quick connectors" aren't so easy. Some of them have a locking dimple, too (right in the middle... see below). I've struggled with them on Drivers I have removed for various reasons. Most likely you will need to be slightly more firm with the pull and maybe add a delicate wiggle as you try to remove that connection.

Be patient. They are tight for a reason, but once you get one to give, you'll pop the rest in short order.

 

[ParisB]

So they definitely are the same, DefTech just harped on "plug and play" and I pulled (what I thought was) pretty firmly and nothing came apart. I was not sure if additional tools are needed or something.

You didnt happen to make a video or have the play by play on how you replaced yours, do you?

Like lovingthehd said, they can be tough to pull out. My wife actually helped hold the amp while I pulled.

Sorry I didn't keep the pics, but it sounds like you know what you're doing. Just don't be scared to pull harder.

 

[MandyinCal]

Like lovingthehd said, they can be tough to pull out. My wife actually helped hold the amp while I pulled.

Sorry I didn't keep the pics, but it sounds like you know what you're doing. Just don't be scared to pull harder.

Thank you for that bit of reassurance! I guess I was just worried I would break it and then not have a speaker at all haha

 

[MandyinCal]

Those "quick connectors" aren't so easy. Some of them have a locking dimple, too (right in the middle... see below). I've struggled with them on Drivers I have removed for various reasons. Most likely you will need to be slightly more firm with the pull and maybe add a delicate wiggle as you try to remove that connection.

View attachment 42691
View attachment 42692

Be patient. They are tight for a reason, but once you get one to give, you'll pop the rest in short order.

Thank you for this! I will try the wiggle technique tonight.

 

[MandyinCal]

SUCCESS!!!!!

I followed what everyone said and just pulled a little harder and they all came free!

Speaker is back up and running again and hopefully will continue to do so for awhile this time.

Thanks again.