audio research sp-10


hi..i'm fairly new to tubes. i have an AR sp-10 pre, AR d-125 amp, vandersteen 2ci speakers, and a shanling t-100 cd player. running the cd player on the tube output of the shanling. my music tastes run the gamut from synthpop/techno...to sarah mclachlin, and josh groban. the system seems just a tad bright to me, which it seems it shouldn't with all the tubes i'm using. i've put the sp-10 on "high gain" which seems to help...is it "bad" to use the high gain on a regular basis? also..my speakers are biwired..but with no name wires..any suggestions for compatable speaker wires and or interconnects (using legend interconnects right now) or any other suggestions would be appreciated. thanks in advance :)
synthgirl333
I'm sure you've figured this out, but the axis of the speaker is on a line perpendicular from the face of the speaker. On axis the speaker would be facing you. Crossing the axis of the speakers in front of you has the principle befit of reducing sidewall reflections and still allowing you to have wide separation and sound stage in a small room. Re height of the speaker - Ideally you want the tweeter height to be level with your ear height, so if your tweeter is 33" off the floor thats where your ear should be. If the tweeter is higher in the speaker than your ears,sit on pillows :-). Re the effect of stands, other than to put the tweeter at ear level...If the manufacturer recommends 6" stands they have probably mounted the woofer so that it works in conjuction with the floor to produce the smoothest upper bass. When you start raising the speaker higher you are going to change this and produce a upper bass suck out. When you lower it you can produce a peak in the same area. I would suggest, for the purposes of getting the best bass response that you invest a couple of bucks in a Radio Shack sound level meter and a test disc with test tones (see the Rives site) - you will learn a lot about speaker set up including positioning of the listening position as well as speakers. Remember, to a lot of us this is a Hobby as well as having access to great music and sound. My moniker is a just a reminder to me about humility - I'm also into flagellation, when all else fails :-). Don't fear moving the speakers about 'til it comes together...every room is different and fractions of inches, ultimately can make a real difference. What you will hear when you really get it right is not only width and height of sound stage, but a depth of image and the sonic illusion of seeing stars on a dark night out in the deep country side. TAKE YOUR TIME, if it were simple it wouldn't be a good hobby.
Wow! I think synthgirl is absorbing a lot of ideas here is a very short time. It was never my intention to put any negative spin on the SP-10. Afterall I owned it for 8 years so that has to tell you how much I liked this product. I was only trying to make you aware that what you have, for the sake of playing CDs, you could make a change to your system at no added cost and gain an incredible amount of improvement. The other point I wanted to make was that the SP-10 can not at all be the cause of any bright or forward characteristic to your system. It has a laid back top end which allows you to hear the magical mids even more....almost too much of a good thing except for us ambience and bloom fanatics.

And yes, I also forgot to mention how fortunate you are to have this music system at the start. The sound quality you now have took many of us 10+ years to achieve.

Concerning the LS5, it came out I think in late 93 or early 94. In late 94 the Mk II came out which had a lower noise floor and changed to use 10 6922 tubes. In 1997, after the Ref1 came along, much of what was gained from this was put into a LS5 III. This had reduced gain and 8 6922s. So many people I met and talked to here in Minneapolis preferred the LS5 III to the Ref1. Do a search here for the LS5 and you will read what I have written on the differences between the II and the III.

Concerning my system, I have not gotten around to listing my system like so many other members. But the magical ARC PH2/LS5III/DAC3II/VT130 has morphed into AesthetixIo/BAT31SE/ManleyRefDAC/Wolcott. Speakers are Magnepan 3.5. I have two TTs: Clearaudio Ref/TQi/Accurate cartridge and VersaDynamics 2 with Koetsu RWS. A pioneer PD65 is my CD transport which drives a Genesis Time Lens which drives the Manley DAC. All cables are NBS Statement except for the phono cable with is SilverAudio SilverBreeze.

And yes, Newbee is clearly anything but a newbie.

So what was your first question again? 8-)

John
hi pmotz...all the controls are in neutral..being the purist i am..however i do think you are correct in that what i am hearing may not be so much brightness as it is lack of bass to balance it. do you have the kimbers on yours? do you have them on the stands they are supposed to be on? i believe that could be one of my big probs as well..not being on the "proper stands", also the speaker wires and as you suggest..that is the only thing that hasn't been changed in my entire system since starting out with nad and the vandies...hey, do you by any chance have the 2ci instructions?? thanks for your input :)
newbee...great advice..and what i am hearing directly reflects what you are saying...finally..it's starting to make sense..k..i'm gonna take a deep breath..relax...take my time..and ENJOY the hobby..you are so right there...looking forward to seeing the stars on a dark night in the country...but as they say anything worth having is worth waiting for....thanks soooo much :)
jafox...quite a morph there...i know..just part of the hobby:) what am i getting myself into!! lol

i've unabsorbed the idea that you put a bad spin on the sp-10...i get it now, for the money, it is not the #1 choice for playing cd's , which at the moment is all i do..so actually that was very valid advice.

i am also an "ambience and bloom fanatic" which is how i fell in love with tubes in the first place.

i'm beginning to wonder...maybe i should have brought this up first..but i thought it was a solved problem. the first day i had the sp-10 it was so beautiful..i swear i cried like all day...humbled..and just in awe. then late that day..the left channel crackeled...my ex told me to mess with the balance knob..i did, and it went away. however, it could be my imagination..but it hasn't been the same since. the ex who gave me the system said when he had it the left channel had done the same so he brought it in where he bought it..they "fixed it" supposedly just sprayed the switches and it was supposed to be all better. and that was the day he gave it to me. well the brightness thing started after the first crackle here...and today it did it again...since all of you agree the sp-10 cannot and should not be bright...and wasn't that first day..now i'm thinking it needs repair?? do tubes go out that way..by an occasional crackle and/or hiss..or would it be a switch prob..or?? and hmmm....could that cause the "brightness" i'm hearing that was just not there that first magical day?

thanks again all of you, not just for your help, but for the laughs..you seem like a great bunch of people :)