Morrow SP7 Upgrade.

Currently using Morrow SP4 Speaker Cables on Low Frequency (bass) in bi-amped system. Various Speakers used, at the moment Revel Ultima Studio. The Morrow's sound best of the cables I have driving low frequencies. At the moment Morrow have 60% off in their trade up program, (I would trade up SP2's I have in a budget system). Anyone have experience going from SP4 to SP7's, and how much better? What other alternatives for bass frequencies would you suggest if not the SP7's?
I switched from sp4's to Dana Cable Onyx mkll, very happy with the bass performance. Vinh Vu of Ginko Audio is the distributor and one of the nicest guys I've met in the industry.

Next sweet spot up from SP-4 is SP-6. Heard 7's a few time didn't seem much better to me .
FWIW, I recently installed Analysis Plus Sub Oval interconnects to my powered sub (crossed over @50hz). The bass is discernibly improved over the previous full-range IC’s that were already quite dynamic. The bass is tighter and more tuneful. You might want to take a look at the Analysis Plus Black Mesh Oval 9 speaker wire. The description states that it’s great with bass. I have no experience with Morrow cables.

Thanks for the responses. I ended up upgrading to the Morrow SP7's as like what the SP4's do on the low frequencies. Would be expecting the SP7's to add quite a bit more of what I like. With the 60% off Morrow trade up and easy pay 5 monthly instalments helped with my decision. shubert the SP6's were only 50% off, so not much more to go to SP7's.

initforthemusic:  Please keep us posted as to your impressions of the SP7s.  Thanks.
Ok bondmanp. Just have to allow a bit of time for shipping to Australia and cable run in time, but will definitely give impression of cable.

@bondmanp I just received an email from Morrow and my cables have only just been shipped! Read on their website that Morrow have moved premises so orders delayed. So it will be a while before I can report.
Thanks, initforthemusic.  I just yesterday decided to try out Morrow.  I ordered a 2 meter run of MA3 interconnects with the Eichmann copper RCAs.  I also ordered the longer burn-in service, so I am looking at about a month or more for delivery.  Patience is a virtue!  I will post my impressions here as well.
I had the Morrow Grand Elite Reference SC's and thought they sounded very good. Next I tried Cerious Technologies Graphene Extreme SC's and it sounded like I added perfectly integrated sub woofers, that's how much these cables changed the bass. Of course the cables add nothing but they allow more music through and they sound so very natural. CT cables just might the biggest bang for the buck out there.
Thanks, lancelock.  I have looked at Cerious, but they are priced a bit out of my range, even if they might offer a good value at their price.  I have a lot more wire to buy over the next year, and I simply can't afford to try the CT stuff.  I can't afford the higher-end Morrow stuff, either, for that matter.  The MA3 with the current sale of 40% off was about all I can manage.  I also really like the Morrow business model - 60 day trials, discounts, trade-in allowances, etc. 
Interesting lancelock, a person over here changed over to Morrow SP7’s from CT Graphene Extremes, and preferred the SP7’s.One of the reasons I went for the SP7’s. He uses the cables in his system full range. Different systems, music preferences etc., so many variables. As I’ve stated on numerous occassions one cable doesn’t suit everyone, or every system.

Hope my long wait will be worthwhile.
Well the SP7's have just arrived, very nice black velvet pouch with the cables. On the day our power is off due to planned upgrades! I'll set them up tomorrow, I only got the free 2 day break-in as like to hear the "changes" during settling in time. It might be a while as main focus is on my "Dragon Slayer" Speaker I've just got back from the designer which I had custom modded and had some issues to sort out.

Will be interesting to hear the differences during the "break in" period. Just had a thought I'll put them in my kitchen system and run the tuner regularly. That will be a quicker break in and fuller frequency. I've found silver cable to have a much longer burn-in compared to copper, I thought my SP2's burnt in reasonably quickly, so the SP7's will be interesting.
Just as I hit enter, power is now back on!
Holy crap! Just put the SP7's in my little kitchen system, admittedly they are only replacing a fairly budget pair of Silver Speaker cables, but wow massive improvement. The depth & weight that is now coming through the Pioneer SP-FS52's! Looking forward to break in & using them on my big Revels, will try them tomorrow as getting ready to go out now.

Initforthemusic:  Thanks for the update.  Since your last post, I took the plunge (the sale in May was too tempting) and ordered an MA-3 IC to replace the Monster Reference cable now connecting my DAC to my pre.  I ordered the Eichmann copper RCAs (I have them elsewhere in my system and like them).  I also ordered the long breakin, since, based on my time available to listen, I would need more than the 60 day return period to fully break them in from 0 hours.  (I have a tube preamp, so I don't want to let everything run all day without me being there.)

I will post my impressions here as well.  I should have them by mid-June.

Interesting that you have those Pioneers.  My son-in-law just got a complete Pioneer surround setup (Elite AVR, towers, subwoofer, center and bookshelf surrounds) all the same Andrew Jones designed speakers.  My daughter works for an authorized retailer, so they were a bargain.  I have to spend a bit more time listening, but my initial impression was that they are a stone cold steal for the money.  Surprisingly clean in the midband. 

@bondmanp ,

Well I've been putting some hours in on the SP7's. They did get a bit rough and ragged around the 60 odd hour mark. Will be interesting to hear when start to settle down.

Yes those Andrew Jones Pioneers punch well above their weight. I only paid $222 for the pair at a clearance centre in Oz less than 1/2 RRP around 3 and a bit years ago. Just a fluke I was actually looking for a new oven and cooktop and stumbled across these, and remembered reading positive reports. Mind you I'm running some much higher end electronics than most would into them. A tube Pre. into (my smallest in size and output) Power amp which punches out around 160 x 2, quite a bit in Class A and a lot of current. The little Pioneer's love it and sound way better than what would typically be paired with them.

Good luck with the MA-3's, my first venture into Morrow was MA-4 RCA's with cu. Eichman's around 4 year ago. They were a pretty big step up from what I had then.
I've had solid core AQ cables both balanced and RCA in my rig for a while, and after buying a new amp without XLR inputs I needed a decent RCA cable…saw the Morrow ad and bought their "el cheapo" MA1 IC . When I asked when they were shipping the thing I got an email noting they're hand made (I hadn't read all the stuff on their site…SORRY!) and take a while…cables arrived with the 4 page break-in papers which I thought were pretty funny, kind of "out there", and 100% correct. A truly great sounding cable and it got me thinking about the trade up thing, although the 400 hour wait for cable nirvana tests my patience. 
Thanks, Wolf.  My MA3s (with Eichmann copper RCAs and 10 day break-in) are in transit.  I should be able to get them inn my system over the weekend.  I am trying to manage expectations, but I am excited.
Don't get too excited…they won't reach their potential until late July.
I have been using the Morrow Audio SP7 bi-wire for a couple years now. They are awesome to my ears, I bought them w/ the short break-in option, they did sound a little rough for 100 hours or so but now w/ several hundred hours (who counts anyway) they are a great addition to my set-up. Bryston integrated, Silverline Sonatina's, Oppo 105D.
I estimate I put about 50-60 hours on the SP7's in my little system. Had a music session with a few mates yesterday and the 2nd half I put the SP7's on my Revel Ultima Studios bass frequencies ( hey there driving two woofers each so I figure there getting a reasonable workout). Very pleased, been giving them a bash today so I figure they have roughly 110-120 hours (inc. the 2 day break-in). I feel they are on the upward spiral, after that little ragged period. I'll swap them over to the HF posts in a day or two, could be interesting. If they keep improving as per the info. sheet I'll be very happy.
I laughed at myself while breaking in these cables but figured, hey, I gotta see if this stuff is as advertised…I actually had white noise from a rarely used tuner running through them all night for a week or so, and then just ran my rig as usual when I was home…turned off the tube amp and let the tuner noise run while out (all the while wondering if signal really does travel through a cable driven by a preamp toward an amp that is off). Then you listen for whatever the instructions predict will happen assuming you have a grip on how much time has passed...In any case, worth the wait for an amazingly inexpensive (seriously…50 bucks) cable that seems to sound fabulous. 
Wolfie said,

"...all the while wondering if signal really does travel through a cable driven by a preamp toward an amp that is off."

So, in your mental travels what did you finally come up with, Pumpkin?
Well, the MA3s arrived yesterday.  I am glad I did my homework and knew what to expect... otherwise I would have thought they were somewhat unsubstantial for the money spent, in terms of appearance and weight.  But, I guess that is the point... the things that make other cables thick and heavy (and less flexible) don't necessarily help the cable perform well.  Perhaps, the opposite is true.  The felt bag is a nice touch.  The quality looks good, the Eichmann copper RCAs seem securely attached.  The assembler's names (Matt) was written on the labels.  Nice touch.  I hope to get them in my rig tonight.  
Geoffkait…your incessant and weirdly snarky little comments simply make you seem like a weirdo who can't resist stalking me with inane, unfunny posts…do you need more friends? Are you simply lonely and sad? Need a hug? Not sure exactly why you feel compelled to continue this pointless endeavor, but know that it only serves to render your already sketchy position as a pseudo expert even more suspect. 
Are you looking in the mirror, Wolfman? 
Hey wolf, just a heads up. If ever you are looking to upgrade. I set up a system for a mate around 2 1/2 year ago. Just put in budget cables, Morrow MA1's was one of the I/C's, as get better components and look at upgrading cables later when budget suits. Took around my MA4's after 12 months, took his system up a couple of notches. He traded up @ the 50% off and is pleased. I only ever buy or advise to buy when Morrow cables are heavily discounted, I think they are good value at the big discounts, maybe not as much at the standard discount.

Well, they're in!  (Oh, my cable assembler was Mike B, not Matt).  So, my MA3s had the 10 day burn in, so ~240 hours, but they did sit unused from shipping, on Monday, until last night, so that could be a factor.  I immediately heard differences between the MA3 and the Monster Reference cables that they replaced (about 15 years ago I worked at a retailer whose only decent cable was Monster, and employees got 60% off retail, so most of legacy cables are Monster). 

Overall, the sound was smoother, particularly in the lower treble on up.  With the Monster, there were some upper-mid/lower-treble areas that would kind of jump out at me (not in a good way).  These jump-out frequencies were gone, replaced by some lesser jump-out frequencies lower down in the mid-band.  They were noticeable, but not nearly as bothersome.  One big area of improvement I heard was in the decay of cymbols, which seemed to go on forever.  There was a smoothness to the sound that might be what TAS's Jonathan Valin (and HP before him) call "continuousness".  Soundstage seemed a little wider, and there seemed to be more depth as well.  There was an increase in detail, with certain lines of music becominng much more easy to follow than with the Monster.  Bass seemed to have a little more definition, with no big difference in output, although there seemed to be an increase in the "subterranean" feel of really deep synth bass (Soundtrack to "The Mission", by Vangelis, track 1).

One thing that I noticed was more frequent spine-tingling running up the back of my neck, and my desire to keep listening past bedtime.  Another point in favor of the Morrow is that a ragged zone of treble, like in the 5kHz range, which I had accredited to my speakers (Ohm Walsh 2000) vanished.  So, happily, it seems this was not an issue with the speakers.  And no, this did not occur at the expense of any treble detail or extension.

Music I listened to included Veruca Salt ("25"), Angelfish ("You Can Love Her"), Count Basie ("Kate" from 88  Basie St. XRCD), the Vangelis soundtrack for "The Mission" and others.  All from my server, all 16/44 resolution via my Squeezebox Touch to my Superberry DAC (a highly modded Beresford 96/24 DAC), to my McIntosh C220 to Odyssey Audio HT3 amp to the Ohm speakers and Vandersteen 2Wq subwoofers.

Now, I realize there is still much break-in to occur, so that is why I am not going to call this post a formal review.  But I am impressed.  I would like the mid-band to smooth out a bit more, and hope they will.  But even at this point, they are a clear improvement over the Monster Reference. 

Update - One huge, and I mean huge improvement I neglected to include in my last post regards sibilants on voices. Previously, I had a fairly frequent issue in which vocal sibilants projected from a different location in space than the voice itself. Distracting? Heck yes! The MA3 completely eliminated this issue. Vocals and their sibilant components are now anchored together in the soundstage. This is really, really big. Prior to installing th eMA-3s, I had chalked this issue up to everything but the cables - the speakers, my room, the DAC, the preamp, etc. I am amazed that this was just a cable issue. As a friend and gear modifier always says, "everything matters." Cables certainly do!
Well, I've put some more time into the SP7's. What was interesting was I swapped in a different Power Amp which has only single Speaker outlets, so I put in a set of Bi-Wire cables and the SP7's sat there for a while before I twigged to put them back in my budget system, When I put them back in, well, they sounded pretty ordinary but settled back in after a couple of days. Re-reading the info. sheet it explains exactly this.

Anyway they have been back hooked up to the bass of my Revel Studios and must be pretty close to full break in. They are a pretty big step up from the SP4's with more bass depth & definition. Kick-drums for example, kick harder. I'm running Cullen cables on mid & high's, they are incredible value for money and have bested some higher priced cables in this area. They are not as good as the SP7's when running the bass driver's, they have quite good definition but lack the weight of bass that the SP7's transfers. I'll swap the SP7's over to the mid & high's soon, I did earlier but preferred the Cullen's in this area although the SP7's wern't fully broken in then.

So do I recommend the SP7's? Well, on the proviso you get the 60% discount on the trade up program (the RRP, like some other cable co's. is a joke), and for driving bass drivers, I feel they are very good at transferring lower frequencies. Just listening to a disc as I type and the kick-drums thump! Of course I would need to try many more cables to be definitive but they have bested a few other cables in this area. For mid & high frequencies and "full range" I really need to experiment a bit more, but thumbs up so far for bass delivery.
Thanks, initforthemusic. I continue to try and put more hours on the MA-3. I am prolly at about 300 hours. Although overall I am very pleased, the bass response remains puzzling. Sometimes, I hear wonderful extension and weight, sometimes there seems to be a lack of bass energy. An email from Mike Morrow confirmed that the bass is one of the last areas that will get fully broken in. I really need to spend more time listening to familiar music, but, like you, I suspect, I am not in this hobby to hear the same audiophile-approved songs over and over. With listeninng time being a very rare and precious commodity, I want to listen to whatever I want to listen to. So, I will try to be more patient with the MA3s. Interesting that you noted more impactfull bass as you moved up the Morrow line. Maybe I need to move up as well... ;-)