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McIntosh Equipment Modified By the Upgrade Company

Victor

Super Member
There was a thread in the McIntosh forum asking about the Upgrade Company. I have always been a tweaker and I have modified much of my stereo equipment in the past but I have not modified any of my McIntosh equipment. This thread about the Upgrade Company got me wondering what a professional tweaker could do with McIntosh equipment. So I contacted David at the Upgrade Company and found that he was only about 3 hours from me and he had a local client that just had a MC252 amp modified that I could compare my MC501s to. So I decided to pay him a visit.

The MC252 is a 250 watt stereo amp and my MC501s are 500 watt monoblocks. Bill was the client who had the upgraded MC252 and Bill was kind enough to invite us into his home to do comparisons. I have compared the MC252 to MC501s in the past and I thought the MC501s were significantly better than the MC252 in imaging and separation and the MC501s were a little better in detail. In bill's system his upgraded MC252 did in fact sound better than my MC501s. Bill's upgraded MC252 did have a little better detail than my MC501s and Bill's MC252 did a better job at giving the instruments separation, the MC501s sounded a little blurred in comparison. The biggest difference was in the bass, Bill's MC252 had much better bass than my MC501s. In Bill's system my MC501s sounded a little dull with weak bass and Bill's upgraded MC252 was musically enjoyable and just sucked you into the music.

After the comparisons at Bill house and spending the day with David I decided to leave him my McIntosh MC501 amps, MS750 music server and MDA1000 DAC to upgrade. I have had the upgraded equipment home and playing for about 72 hours, I know that is not enough time to get a final judgment but I decided to start this thread and post my initial impressions. As the next few months pass I will continue to give updates.

It took 5 days for the upgrades to be done and I know it is difficult to make comparisons with several days between listening so I listened to some music before the upgrades and took some notes.

The first comparison I did was an easy one, I compared the music playing from the hard drive on the upgraded MS750 music server to the CD playing through my non upgraded MVP851 disc player (keep in mind the MS750 and MVP851 are used as transports only with the MDA1000 being the DAC). Before the upgrade the sound of the music on the MS750 hard drive was just a little worse than the CD playing on the MVP851, there was just a little less detail with the music server. Now with the upgraded MS750 and doing a blind test with my friend switching the sources I preferred the sound of the upgraded MS750 3/4ths of the time. This is fantastic because I love the convenience of the music server and use it for most of my listening.

Now as for listening to the system all together, my first impression is that the soundstage has an increased depth and there is less "hash" which is allowing more detail to come through. The first CD for my comparisons is Bossa Antigua by Paul Desmond. With the upgraded equipment the percussion has more pinpoint detail and placement which seems to be about 10 feet behind the speakers. I don't remember hearing anything at this depth before. Also at times the sax seems to be close to my right ear which is nice. Next was Tea for the Tilerman by Cat Stevens. There seemed to be more detail in the guitar strings on this CD. Next Crime of the Century by Supertramp. WOW there are sounds coming from all over the place on this CD. Next was The Dream of the Blue Turtle by Sting. There is more bass impact on this CD than I remember.

I have listened to the upgraded equipment for about 20 hours so far and I have enjoyed it the entire time with no listener fatigue. This was already a great system so the improvements are not huge but I do feel that it is improved. I would say the improvements are about equal to going from average interconnects and speaker cables to great cables.

So far I'm happy with the upgrades. When I get the time I will bring the upgraded MC501s to the local stereo shop to do a direct comparison with their stock MC501s. David is a great guy who is genuinely concerned with pleasing his customers. He has called me several times since I got the upgraded equipment home to make sure I like what I hear. He was working on another McIntosh amp and he found a change that improved the sound and told me a simple way to do it on my amps. I did make the change and it did make an improvement. He also said I could bring the amps back to him and we could spend some more time voicing them to my preference for no charge. David is like a kid in a candy store when it comes to audio equipment, it is fun working with someone with this much enthusiasm.

As I said the differences were not huge but I get excited anytime equipment this good can be improved. Is it worth the money and risk of modifying McIntosh equipment? That is difficult to answer but so far I am happy with the results and would do it again.

Victor
 
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Cool beans man....looks like you found a winning combo without having to upgrade amps. Thanks for the insights!
 
Nice review. Thanks for spending the time, effort, and money. I look forward to hearing your comparison to the original 501's. I am contemplating doing the same with my 402's.
 
Well he does stand behind his work and offers your money back so little risk especially since you did not have to ship. Wish I were near to help you move those amps to the store and back when you do the comparison. That's a lot of work. Thanks for the report.
 
I finally got the time to bring my upgraded MC501s to the local stereo shop to compare them with their stock MC501s today. The comparisons seemed to confirm what I posted in the first post in this thread.

In comparing my upgraded MC501s with the stock MC501s I found the upgraded MC501s had just a little more detail. We listened to Money For Nothing by Dire Straits and found with the upgraded MC501s there was a texture to Mark Knopfler's voice that was missing on the stock MC501s. Then we listened to Black Coffee by Jacintha and the brushed snare drum had more detail with the upgraded MC501s. With the upgraded MC501s you could hear the brush tapping the snare drum skin, I did not hear that tapping with the stock MC501s.

These differences were subtle and difficult to hear without concentrating but the differences were there. Overall I found the upgraded MC501s more enjoyable to listen to.

I was expecting to hear some differences in the bass but I thought the bass was very similar sounding with perhaps just a little better bass definition with the upgraded MC501s.

As I said the differences were not huge but I find it exciting anytime you can make an improvement on a system this good. So, is it worth the effort, money and loss of the McIntosh warranty to get the upgrades done? So far I'm happy with the results and would do it again.

I have listened to the upgraded equipment for about 10 days now and I still like what I hear. A little more detail without any listener fatigue.

Victor
 
Victor, its good to hear that there was an improvement, however, I would be concerned with resale value. Not everyone will appreciate the "tweaked" McIntosh gear. I hope I am wrong. :dunno:
 
Victor, its good to hear that there was an improvement, however, I would be concerned with resale value. Not everyone will appreciate the "tweaked" McIntosh gear. I hope I am wrong. :dunno:
Yes I would expect the resale value to be reduced with these upgrades. I did take this into consideration when I decided to give the upgrades a try. I have said this before but I expect to keep the equipment I have right now for a long time.

Victor
 
The only update I have right now is after listening to the upgraded equipment for a little over a month, I'm still liking what I'm hearing. For the most part I have stopped trying to analyse the sound and now I'm just enjoying the music. As I said before the upgrades did not make major improvements but there was definitely an improvement.

Dave did contact me and he told me that he has found a new way to make an improvement on the MC501 input boards. Dave is in the process of moving to a new house right now and as soon as he is settled in I will mail him my input boards for the upgrade. Dave is going to make the new changes to the input boards for no charge, that's good customer service. It will probably be a few weeks before I get this done but I will post with my findings when I get input boards back. Hopefully this will make the amps sound even better.

Victor
 
Sorry to reopen an old thread, but based on what you guided us to when you first mentioned your upgraded MDA1K, I had another question for you:

What specifically did Dave "upgrade" on your equipment? Cost? Worth it?

Thanks.
 
I promised Dave I would not post the specific details of the upgrade on the open forum. The upgrades were mostly shielding to deal with RFI/EMI interference and some new capacitors.

The upgrade charge is usually $1000 per box but I got a discount doing everything at once. Overall it was a good experience but I probably would not do it again.
 
I finally got the time to bring my upgraded MC501s to the local stereo shop to compare them with their stock MC501s today. The comparisons seemed to confirm what I posted in the first post in this thread.
Victor

Victor,

Any chance that the differences you heard were due to the fact that your amps were well broken in? I ask out of simple curiousity.
 
Victor,

Any chance that the differences you heard were due to the fact that your amps were well broken in? I ask out of simple curiousity.
The MC501s at the stereo shop were well broken in also. At that time the stereo shop used the MC501s in their big stereo room to demo speakers. That room plays music any time the store is open, so their MC501s may have been more broken in than mine.
 
Why the second thought ??
Unless the difference is big, I would prefer my equipment to be stock.

The upgraded MC501s were a small improvement over stock.

I have not found a stock MDA1000 to compare to my upgraded MDA1000.

The upgraded MS750 was a pretty big improvement over stock.

Dave's specialty is upgrading disc players and that is where I heard the most improvement. If I had to do it again, I would get the MS750 upgraded and leave the MDA1000 and MC501s stock.
 
Seems to me if one bought or had an MC252 and had it upgraded that it would be worth it. If it can 'beat' a pair of stock MC501s in certain ways that is really something !!!
 
Sorry to bring back a thread from the dead, but I am thinking of having David/Upgrade Co. mod my MCD500. Any thoughts?
 
Sorry to bring back a thread from the dead, but I am thinking of having David/Upgrade Co. mod my MCD500. Any thoughts?
That's a tough call. If I bought a MCD500 I would probably just keep it stock.

I would take the money for the upgrade and put it into a good power cord for the MCD500, I like the Shunyata power cables with the noise reduction compound in them (this used to be called VX, I'm not sure what they call it now) for CD players. CD players make alot of RFI and EMI, the Shunyata VX cables help keep this interference out of the rest of your system.
 
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