• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Restored SX-1010 Vs. Original SX-1250

I had 2 restored 1010s . 2 . Both left. Weren’t being used. My 850 and 939 are just as good. But the 1250 is a stunner.
i will say your right, the 1250 is a shark in power, and the phono is nearly on par with the 9500 mk II i had, but with 2 times the power. ill also note, it is a sound profile similar to the 1010, with the added volume of sound, however, it images better at volume. i do want to note the 1010 is a full restore with inceased filter caps running 22k's only origional transistors is the outputs, where as we are currently running a unrebuilt 1250, in what i would call a ultra low used unit. clean, with no transistor feedback
 
Last edited:
Hello everyone, I’m faced with a big dilema. A couple weeks ago, I had my grandfather’s pioneer SX-1010 rebuilt from the ground up and I couldn’t be happier with the outcome. I recently got an sx 1250 for an unbelievably cheap price(too good to pass up), but it’s all original. Despite being all original, it sounds great and cosmetically is in perfect condition. I honestly don’t know which to use. They both sound great but with the 1010 I have the piece of mind that i can use it for 30 more years without issue. The 1250, I don’t know how long it will last being all original. Any help would be much appreciated
I am in rhe SAME BOAT as you! Recently picked up a beautiful 1250 that works fabulously. As much as I'd like to rebuild it, for now I am just using it respectfully. I recommend you do what I did before serious use:

Open up unit top grate, and remove bottom cover. Visually inspect for previous work done (damage done accordingly), burned boards, resistors, anything that looks off.

Check DC Offset and Bias Current. This is very easy and painless on this unit despite its size. Can access all you need from the top grate, pins 9 and 19 are for bias, 7 to ground for dc offset, iirc. If you get near 0 for dc offset and 80-100mv of bias, you're good for running for time being. Just monitor the heat load on rhe amps
 
Last edited:
post 1250 cap only rebuild, was stunned very few transistor legs were blackened with the fungus of death. after the total recap of amp and a 100 % psu rebuild, i recommend handles on your listening chair, she is the real deal. the 1250 still out images anything I've herd, music separating feet in front of your speaker even off to the side, like the music is like water. the sound is better described by comparing to the 1010. it is a far more controlled sound over the 1010 at volume "50%" the speakers do return to the neutral point every time and it is best displayed while watching movies "honestly, go back to those awesome sounding theaters from the 90's where the sound outside was like an earthquake" we are running goldwood hd 15" woofers in properly built boxes for our baseline, and those speakers are tossed around precisely like tin cups. many subwoofers struggle to make half the mass notes these were forced to make and even cleaner, lower and better than I've ever felt or herd. back to my assessment between the 1010 vs the 1250. this is the best answer I've herd to a more powerful, and better sounding 1010, as the settings never really got moved, bass is on the same exact marks, and the phono is superior, no added treble to the music. loudness off. my love for the 1010 will never be extinguished, but the 1250 by its own right is the superior unit hands down, and worth the recap alone. my only suggestion for your choice would be to mainly consider if your running high efficiency speakers and the size of your rooms what unit you choose. if you have some speakers at 88db and a middle sized area, maybe then a 1250 can squeeze in, but if its high efficiency, drop down for the 1010 in size, this considering your choices. my living room is not very big, maybe 12' x 20', and we packed in sound dampening "furniture, cloth wall hangings etc" and tbh, we need 2x that size with 94 db rated speakers, its basically pa in a match box for us, even thou the speakers respond more like monitors. ' my sound test provided that i'm not deaf yet so i can keep jamming" this is my take, leme know if i'm stupid, crazy or just fn right, thanks for reading my post!

we did do a side comparison as well, as my father bought a 1250 to replace his 3900 in the early 2010's and was terribly disapointed, we could do a proper side by side with these 2 units this past weekend to burry the hatchet. a 3900 has clarity and the most over the top understated hud, outside of this, it still proved to be made more effecient over powerfull, dispite the 120w rating i claims. the 3 generations before are louder, stronger, and better sounding at 100 watts and up, the 1250 handed it a solid loss in every dimension after we played court of the crimson king alone. 200 hrtz and 3 ticks up on bass, at about the exact same volume level, and the 1250 had flat, sounded the exact same. pioneer is amasing making the same sounding equipment imo, maybe not exactly the same, but you know they are related, dispite any power gulfs.
 
Back
Top Bottom