[PLMONROE]

Brian, I appreciate that you have been having trouble with these. However I ordered mine before last Christmas What is the probability that I will have my order before next Christmas? 

[Brian Cheney]

You want Xmas delivery?  What year??

mls informs me waveguides ship Aug 23, should arrive 3 weeks later.

[ka7niq]

You want Xmas delivery?  What year??

mls informs me waveguides ship Aug 23, should arrive 3 weeks later.

Brian, are these the Spiral wave guides too for RM 40 ?
Or, are you still working on them ?

[john1970]

Brian,

Thank you for the update on the RM-40 CDWG waveguides.  Although I absolutely love the sound of my non-CDWG RM40s I can not wait to have the CDWG.

Does the CDWG requires an in-field modifcation to the crossovers?  If I remeber correctly I remember you mentioned a passive EQ through the crossover.  If a modification is necessary I will probably install the Blackhole 5 and modify the crossover at the sametime (that way I only remove the woofer once from the cabinet).

Thank you again,

John

[Brian Cheney]

Yes, the midrange filter must be modified to cause a rising output from about 2kHz on up.  It can be done passively or with an outboard electronic crossover.  If you're the adventuous type no reason the passive CD EQ xover can't be installed in the field.

[john1970]

Brian,

Can you give me an idea on how much adventure will upgrading to the "CD EQ xover" be?  I have no problems taking out drivers to install black hole 5 or soldering a couple of connections.  If the upgrade would consist of rewiring an entire xover I would rather let it be.

Thanks,

John

[Brian Cheney]

I think the best way to handle the CDWG/Supermax upgrade is to do them together at the factory.  The owner would lift out the crossovewr from inside the speaker and send it to the factory, requiring removal of only 4 screws. The factory would install the crossovers in the outboard enclosures, update to passive CD EQ filters, and send you new boards with three sets of binding posts.  User then attaches wiring directly to the new posts and installs the boards.  About 1hr work for the owner and about $450 plus shipping expense from the factory.

[john1970]

I think the best way to handle the CDWG/Supermax upgrade is to do them together at the factory.  The owner would lift out the crossovewr from inside the speaker and send it to the factory, requiring removal of only 4 screws. The factory would install the crossovers in the outboard enclosures, update to passive CD EQ filters, and send you new boards with three sets of binding posts.  User then attaches wiring directly to the new posts and installs the boards.  About 1hr work for the owner and about $450 plus shipping expense from the factory.

Brian,

If I did go this route please let me know if it needs more than 1 amp to drive the speakers.  I only have room for a single amp so if multiple amps are required I would have to passively modify the current internal crossover.

If a single amp can be used this is an option that I would consider.  If I understand it correctly the crossover would be in an external case running to three binding post (woofer, midrange, and tweeter) on the speakers. 


Thank you,

John

[John Casler]

I think the best way to handle the CDWG/Supermax upgrade is to do them together at the factory.  The owner would lift out the crossovewr from inside the speaker and send it to the factory, requiring removal of only 4 screws. The factory would install the crossovers in the outboard enclosures, update to passive CD EQ filters, and send you new boards with three sets of binding posts.  User then attaches wiring directly to the new posts and installs the boards.  About 1hr work for the owner and about $450 plus shipping expense from the factory.

Brian,

If I did go this route please let me know if it needs more than 1 amp to drive the speakers.  I only have room for a single amp so if multiple amps are required I would have to passively modify the current internal crossover.

If a single amp can be used this is an option that I would consider.  If I understand it correctly the crossover would be in an external case running to three binding post (woofer, midrange, and tweeter) on the speakers. 


Thank you,

John

Hi John,

Actually, "everything" is exactly the same, amp and connection wise, except that you run the amps output (speaker cables) the the "box" rather than the speaker.

The "stock" box will have two inputs (binding posts) just like your present RM40's, and they will also need to be "jumpered" if you use a single amp, just like now.

However, you will have the option of a "3" input box, should you wish to "tri-amp".

The SUPERMAX RM40 speaker cabinet will have "3" inputs (Maybe we should call it the S/m RM40, or RM40 S/m????

While B, has mentioned some pricing, the 3 input price will likely be $50-100 more for labor/binding post/additional wiring.

[gongos]

Any chance of an RM2 version?

[John Casler]

Any chance of an RM2 version?

It is available on ALL RM Series models and I think even the 626R (if I have my way)

In fact the 626R might benefit quite nicely, due to a bit more cabinet volume (slight), and substantially less resonance and vibration to the XO.

[gongos]

Would it be possible to get complete x-over removal instructions as a sticky?

&

Are the CDWG ready for the RM2's?

[john1970]

I second Gongos and think that a sticky for xover removal would be very beneficial.  In addition instruction for rewiring the speakers to the posts would also be useful.  The rewiring instruciton should be for both the 2 post (bi-wiring) and 3 post (tri-wiring) versions.

Just an idea,

John

 

[john1970]

John and Brian,

Please keep me posted on when this modification will be made available (i.e., in full production).  Obviously, I am in no rush to do this mod, because without the xover I can not listen to any music. 

Thank you,

John

[warnerwh]

Tyson has a good idea in the xover removal sticky. A guide with quality photos would be best. I think even someone who's apprehensive about doing something like this would be much less so when they saw how little is involved. Most of the people here appear to brighter than average and I think could do it. If someone can solder and be careful it shouldn't be too difficult.

I'd like to know if there's going to be a box where those of us with inboard xovers can just pull out our inboard crossovers and mount them in an outside box. I've always felt this has been the way to do this properly and costwise it should be little different and easier for everybody.

In the meantime some photos of one of these projects would be nice Mr. Casler! Thank You

[John Casler]

Tyson has a good idea in the xover removal sticky. A guide with quality photos would be best. I think even someone who's apprehensive about doing something like this would be much less so when they saw how little is involved. Most of the people here appear to brighter than average and I think could do it. If someone can solder and be careful it shouldn't be too difficult.

I'd like to know if there's going to be a box where those of us with inboard xovers can just pull out our inboard crossovers and mount them in an outside box. I've always felt this has been the way to do this properly and costwise it should be little different and easier for everybody.

In the meantime some photos of one of these projects would be nice Mr. Casler! Thank You

Hi Warner,

At this point I don't know if B, has a source, for the boxes.  In the pair of RM40s mentioned my customer had a pair built.

As far as pics, those could only be shot by Big B himself (or a helpful cohort) and he would also have to write the instructive stickie.

For those upgrading to the CDWGs, this would also allow you to send back your XO and have it returned as a CDWG "equalized" OXO.

At one time, for Boxes, I suggested the "speaker cabinets" from Parts Express.  They are attractive, a good size and have a "removable" panel.  But the big problem is they have "braces" that might get in the way.

[john1970]

Brian,

Did the CDWGs ship from MLS as expected on August 23? 

Thank you,

John

[ctviggen]

If you perform the XO mod yourself, do you have to put the XO in an exterior box?  I would prefer having the XO back inside the speaker.  I assume there is going to be a difference in cost for those with different capacitors. 

For personal reasons, I have not been able to visit this site for a while.  Let me see if I have the current information about how to get the best performance from the CDWG:  (1) we need to dehorn the tweeter; and (2) we need to install the passive upgrade to the XO (and, (3), we need to install the new PRs, but I assume this is a given).  Is this it?  Also, I have an RM30C, used as a center channel, so do both (1) and (2) apply to the RM30C? 

[John Casler]

If you perform the XO mod yourself, do you have to put the XO in an exterior box?  I would prefer having the XO back inside the speaker.  I assume there is going to be a difference in cost for those with different capacitors. 

For personal reasons, I have not been able to visit this site for a while.  Let me see if I have the current information about how to get the best performance from the CDWG:  (1) we need to dehorn the tweeter; and (2) we need to install the passive upgrade to the XO (and, (3), we need to install the new PRs, but I assume this is a given).  Is this it?  Also, I have an RM30C, used as a center channel, so do both (1) and (2) apply to the RM30C? 

To reduce confusion, let me mention a couple things;

1) Any electircal crossover modification will likely have to be performed by B, (except cap changes) since it it a procedure of winding and unwinding with "listening".

2) While simply adding the CDWG will produce an excellent result, (as heard at CES) the Wave Guide reduces Neopanel output by approx 1.5 db.  This will be less noticable  (Fletcher/Munson) at low listening levels.

3) To acheive the best result at higher listening levels, the FST's and the PR's need to be "balanced" (equalized) to the reduction of the neos.

4) This is accomplished by DeHorning the FST, and changing the PR's to match the Neos

And to answer your last question; Yes, all apply to the RM30C.

[john1970]

John or Brian,

Did the CDWGs for the RM40s ship from MLS on August 23 as expected?

Thank you,

John