agedhorse

It’s one way to implement muting, but not the most common way by far. It depends on what is happening throughout the amp as to how muting is accomplished and where. Sometimes, more than one method is used in an amp too.

There are several ways to mute the amp. You want to be darn sure the module is really the problem or you will be throwing money away. Also, beware of these modules sourced from China, there are counterfeits of this series coming from there.

Excellent, this is why I always recommend the best service you can find… premium service, even at a premium price is always a better value.

If the bottom passive radiator is too close to the floor it will change the tuning of the cabinet. That’s (partly)what the feet are for.

Agreed, everything gets paid for one way or the other. In the US, in most states, there is no sales tax on the labor. Only parts and materials are subject to it but only if the parts were purchased by the service business and sales tax wasn’t paid at that point. This is why comparing costs is so difficult, you pay more overall in taxes, but you have universal healthcare and we have an expensive mess run mostly by private insurance companies. Pick your poison…

A couple of comments that apply here… 1. much of the additional labor applies to correcting previous repair work, and removal of the PCB for the additional work (including cleaning residue and contamination, which is important to minimize leakage currents) 2. 20% of the total repair cost doesn’t go to the shop, it goes to the all government to pay for the costs of running the country, including social heath programs. The pre-VAT amount is similar to the cost of factory servicing.

Depending on the year, the 15's were usually EVM-15L's, the 10's could have been one of 3 or 4 different drivers (the one in the picture is NOT a CA-10 nor is it an Eminence, it may have been a Precision Devices driver). The 6-1/2" driver is a customized Eminence driver, there were at least 2 versions, one with an unvented motor and a vented dust cap and the one pictured that has a vented motor (because the dust cap is not vented). I do not know what the customizations were, but it it likely that it was related to the mid voicing and extension. If everything is working, I would leave the drivers alone.

You will probably need to order a replacement horn with a new driver at this point. I haven't seen the old style is years.

He is tough, but he gets things done right. That’s what you are paying for, not his personality! 😂

Stan’s a fantastic service engineer, one of the best I have worked with. Say hi to him for me.

There IS a USB power source on the back of the amp, you can use it with whatever converter cable you wish to get the necessary voltage and polarity. This feature is on the D-350, WD, TT and BD-800 models. This feature and application is also described in the owner’s manual

Where do you have the master volume control set?

Ultimately, we lost some sales from this but gained a life-long following from those who appreciated it. Yes, the Bass 400+ was also a fairly extreme example of this which is why we refined the original circuit to make it more player friendly but it still has some of the iconic quirks.

Almost all of the voicing on both the 400+ and Bass 800D is done within the tone stack eq section, that’s why it’s so important to understand how it works.

Remember that this is based on the Fender tone stack eq which can benefit with the eq controls higher than you might expect. Also, the master volume control applies gain evenly throughout its entire rotation, many master controls do 90% of their work in the first half of the rotation (which makes people THINK they are more powerful though they are not).