grand slamm mark II

maslak34 · Mar 19, 2015

Hi,
Looking for a new speaker and came across a grand slam II in pretty good condition.

My room size is 13m long 8m wide and 2.75m height.

Amp is gryphon Diablo integrated.

My listening position is rather close at 4.5m from the speakers

Can the Diablo drive the grand slamms?

Is my sitting position too close?

Will I be better of with something like verity sarastro?

Thanks in advance for all the inputs

Steve Williams · Mar 19, 2015

My guess is that it will drive it just fine

The Wilson setup involves positioning and set up of speakers and comes with a setup manual based on listening position My room is not nearly the size of yours and i listen 12 ft (3.7 meters) from the speakers.

LL21 · Mar 19, 2015

Agree with Steve. You MUST get someone who knows what they are doing to set them up...speak with Wilson for someone in your area they trust, if you dont have a good dealer involved. I drive my Grand Slamms with Gryphon Colosseum, and would not be be at all surprised if the Diablo is amazing with yours. Good luck!

maslak34 · Mar 19, 2015

Thanks for the replies

I have been reading the manual that I found on wilsons web site and setting up is critical and a lengthy process.

Steve Williams · Mar 19, 2015

maslak34 said:
Thanks for the replies

I have been reading the manual that I found on wilsons web site and setting up is critical and a lengthy process.

It's not as difficult as it seems and yes a good knowledgeable dealer is important. Having said that I have set up my last 3 Wilson speakers on my own and was happy with the results

rockitman · Mar 19, 2015

As long as you follow the owners Manual setup guide, you wont need a dealer.

mauidan · Mar 19, 2015

maslak34 said:
Thanks for the replies

I have been reading the manual that I found on wilsons web site and setting up is critical and a lengthy process.

Here's the WASP set-up sheet:

Since the speakers are old, I suggest you check all the driver fasteners/bolts and make sure they're tight.

Wilson recommends 20 in-lbs of torque on driver fasteners/bolts.

It helps to use a torque wrench to prevent over tightening.

BTW, don't use the 3/32" Allen Wrench in the Wilson tool kit to tighten the four small black screws on the Focal tweeters. The heads aren't 3/32". They're 2.5mm.

Frank750 · Mar 19, 2015

I set up my former Grand Slamm Series 2 speakers on at least 4 occasions, always sounded great. Also set up Alexandrias myself. Piece of cake.

I would be careful when putting the Grand Slamms together though. The blades used to hold the upper modules in place have very sharp edges and when sliding the modules for optimal setup, some scratching of the paint surfaces can occur if you're not very careful. Something they fixed with the Alexandrias.

BruceD · Mar 19, 2015

Yes indeed I've had the privilege to hear Steve's Wilsons at his magnificent abode! --and they sound superb and engaging

Having been a Wilson owner since the Watt3 to the X1Grand Slamm-- I concur the Gryphon will perform admirably with the Slamms

Incidentally with respect to the WASP setup I got the feeling Steve's room proved the exception to that rule--but I could be wrong

!

Good Listening

BruceD

maslak34 · Mar 20, 2015

Just wondering

what are the differences of Xi Grand Slamm I and II and III versions?

Do I need to get any tweaks for the II's?

I know most people use the stillpoint with them but as for the jumper cables what will be the recommendations?

Steve Williams · Mar 20, 2015

I owned X1 series 3's for a short time but I don't recall any need for jumper cables

Sharp 1080 · Mar 20, 2015

If you use the WASP method you will need two tape measures per speaker when setting up to mark down the changes in positioning. Be patient, it helps to have an assistant moving the speakers while you remain seated. These speakers definitely take time to setup, but the finished result is amazing.

LL21 · Mar 20, 2015

Steve Williams said:
I owned X1 series 3's for a short time but I don't recall any need for jumper cables

Hi Steve...yes, the Wilsons come with a solid copper block that links certain binding posts in the back...but i have found that ADDING a Transp Ref Jumper cable made a huge improvement. This experiment came off the back of a few owners who had bi-amp'd their Grand Slamms which had been strongly recommended to me by 3 different Wilson dealers, along with one person who had bi-wired his and decided against upgrading to an Alexandria I many years ago.

I am not going up to Alex 2...so this jumper idea was quite a nice surprise for me, as it brought a nice level of improvement, particularly in bass articulation and delineation.

Steve Williams · Mar 20, 2015

LL21 said:
Hi Steve...yes, the Wilsons come with a solid copper block that links certain binding posts in the back...but i have found that ADDING a Transp Ref Jumper cable made a huge improvement. This experiment came off the back of a few owners who had bi-amp'd their Grand Slamms which had been strongly recommended to me by 3 different Wilson dealers, along with one person who had bi-wired his and decided against upgrading to an Alexandria I many years ago.

I am not going up to Alex 2...so this jumper idea was quite a nice surprise for me, as it brought a nice level of improvement, particularly in bass articulation and delineation.

Lloyd

How do they biamp without using the Wilson crossover or an external crossover.

Steve Williams · Mar 20, 2015

Wilson would always say not to biamp as you might take out a resistor or even worse a driver

LL21 · Mar 20, 2015

Steve Williams said:
Lloyd

How do they biamp without using the Wilson crossover or an external crossover.

Hi Steve,

They were recommending running thru the Wilson external crossover and bypassing the internal one for bass amp...a lot of work, but supposedly transformational from those who have done it (with help of Wilson dealers).

wsill · Mar 30, 2015

maslak34

Setting up Wilson X-1's is not difficult.
The manual provides extremely well laid out, concise step by step directions.
Also using the 'Time Align' charts in the Appendix really help. You can fine tune your setup by moving the individual modules once you get some experience with how they interact in your room. I agree with Steve and rockitman, Frank750 with their comments on setup.

One improvement I made to my X-1 wings; I added a felt liner to the inside of each wing; so now as I slide the modules into the wings the fear of scratching or issues is diminished to zero.

Bill

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