Modifying a McIntosh MC240?

[Gary]

Does anyone know how to modify - or where I any find information on modding a Mac 240?

Steve recently posted this:

"That bass slowness (and anything else) can be fixed on the 240 if you want it modded. The bass will get fast, the highs will get neutral but the mids will stay glorious. Of course, your amp worth two grand will now be worth 500 dollars to a collector if you try and resell. "

I do not care to resell my amp, I'm not a Mac collector and this has got me curious!

Can anyone help? Thanks! :cool:

[Jeffrey]

Hi Gary,

Are ya sure ya wanna do this? :)

The following two links are considered a couple of the best places to get McIntosh repairs. Why doncha give them a call and see what they gotta say about mods.


http://www.audioclassics.com/

http://www.mcintoshaudio.com/


Please keep us posted on whatcha do,
Jeffrey

[Dave]

Jeffrey,

The www.audioclassics.com link is a dead one.

[Gary]

Originally posted by Jeffrey
Hi Gary,
Are ya sure ya wanna do this? :)


No! :eek:

But I thought I'd check it out. And if it could be "undone" or if I can hear a modded McIntosh amp to compare, I may consider it!

Especially if the modded amp keeps the midrange magic!

Originally posted by Jeffrey
Please keep us posted on whatcha do,


Roger, WilCo!

[Gary]

The audioclassics link worked for me!

[Jeffrey]

Originally posted by Dave
Jeffrey,

The www.audioclassics.com link is a dead one.

Hi Dave,

It does not work in B.C. I'm not sure whether it is the ice or the rock in B.C. that limits the flow of useful info. :D

-Jeffrey

[Dave]

Hmmm, seems to be working OK now. (shrug)

[indy mike]

Dynaco Mike here! You McIntosh boys run in a rarified league, but in the Dynaco realm here's what normally happens: the caps and resistors on the circuit board are replaced with modern types (snazzy mylar and poly caps, metal resistors), the big filter cap in the aluminum can is replaced with larger value filtering caps, the terminals are replaced with heavier duty hardware - you get the idea? Some go farther like Joe Curcio (great site for Dyna fans) and design new boards that use different small tubes - there's where things get scary - you gotta take it as faith that the designer knows what they're doing & really designs a sonic upgrade... Replacing caps and resistors is easy with a schematic and soldering pencil - both my MK IV's have some cap and resistor swapping done that brought them back to life.