Best Of
Picked up a mint pair of SDA CRS +'s...I'd like to bring them back to their former glory, or better.
This will be my 5th pair of SDA's that i've owned over the years. I've had two sets of SDA1's and two sets of SDA2's. I sold them a few years ago to make space for new stuff. I've always wanted to try a pair of these smaller ones, and they are awesome. They even came with the stands, original boxes, SDA cable, owners manual, etc...everything...excellent shape too...
Anyways, I've already decided that the tweeter has to go. I did that in all of my previous SDA's. I replaced them with rdo194's in the past. After RE-reading all of the posts about upgrades, I wanted to seek out more information. I've learned a lot since my last set of SDA's 5-6 years ago and i've had a lot of other speakers since then.
That being said, I can't find any DETAILS on what each upgrade really accomplishes. I know that everyone says the rdo194 is a massive upgrade, and the rdo198 is even better..but in what way? detail? less sibilance? clearer imagine? etc..
I def want to upgrade the tweeter, and I'm considering doing the rdo198 with the necessary crossover upgrade, but I can't find any information on the real differences between the rdo194 and rdo198.
Lastly, I would like to restore the crossover...but i'm not sure which direction to go. There seems to be so many options...
In summary, I like the way they sound, with the exception of the stock tweeter. The sound stage is massive and the imaging is great, but next to my Mofi Sourcepoint 10's, I am craving better midrange and more resolution...the center image is great, but it's thin and lacks weight...and the imaging is great, but it doesn't have super clear resolution. And i've always disliked what the SDA effect does around 500 hz. It's ringy and honky on some tracks...I usually EQ that out....
So....will upgrading the caps and all of that make a huge improvement in these areas? Can someone steer me in the right direction so that I can do these speakers justice? I don't want to spend a fortune because realistically, these speakers are worth 200-300 dollars on the used market. But if I can really improve them for 300-500 dollars, I am down. Since they don't take up a huge amount of space, I will probably keep them forever, so I my as well try to make them even more awesome.
Thanks in advance.




Anyways, I've already decided that the tweeter has to go. I did that in all of my previous SDA's. I replaced them with rdo194's in the past. After RE-reading all of the posts about upgrades, I wanted to seek out more information. I've learned a lot since my last set of SDA's 5-6 years ago and i've had a lot of other speakers since then.
That being said, I can't find any DETAILS on what each upgrade really accomplishes. I know that everyone says the rdo194 is a massive upgrade, and the rdo198 is even better..but in what way? detail? less sibilance? clearer imagine? etc..
I def want to upgrade the tweeter, and I'm considering doing the rdo198 with the necessary crossover upgrade, but I can't find any information on the real differences between the rdo194 and rdo198.
Lastly, I would like to restore the crossover...but i'm not sure which direction to go. There seems to be so many options...
In summary, I like the way they sound, with the exception of the stock tweeter. The sound stage is massive and the imaging is great, but next to my Mofi Sourcepoint 10's, I am craving better midrange and more resolution...the center image is great, but it's thin and lacks weight...and the imaging is great, but it doesn't have super clear resolution. And i've always disliked what the SDA effect does around 500 hz. It's ringy and honky on some tracks...I usually EQ that out....
So....will upgrading the caps and all of that make a huge improvement in these areas? Can someone steer me in the right direction so that I can do these speakers justice? I don't want to spend a fortune because realistically, these speakers are worth 200-300 dollars on the used market. But if I can really improve them for 300-500 dollars, I am down. Since they don't take up a huge amount of space, I will probably keep them forever, so I my as well try to make them even more awesome.
Thanks in advance.




3 ·
Re: Tinkering with the office rig.....
Tonight I pulled out an oldie (from about 2008) but a goodie. Decided to go all tube tonight. It's been awhile since I pulled out my Dared I30 (Spirit in the Sky) tube integrated amp.


Still for sale on Amazon....for $1099. My earlier version doesn't have Bluetooth and I didn't buy mine from Amazon
https://www.amazon.com/Vacuum-Integrated-Amplifier-Bluetooth-Headphone/dp/B079PXDBD9/ref=sr_1_1?crid=116UHHU03DRMM&dib=eyJ2IjoiMSJ9.TAF6PKJHTf44E0pniVwj1g.qu1__7i5Cj0eP6n6-cGoNn3pwK5R2S4zIP7ogtiPBxQ&dib_tag=se&keywords=dared+i30&qid=1769737570&sprefix=dared+i30,aps,213&sr=8-1
A pair of 1988 SED =C= 6L6GC power tubes; (1) 1956 CBS gray plate w/horseshoe getter 12AX7 and (1) 1955 Sylvania 5814A per channel. 30 wpc.
Streaming Qobuz ---->Computer USB ---> iFi iGalvonic 3.0 noise isolator ---->Matrix Audio X-spdif 2 USB reclocker/converter --->Coax out to Eastern Electric DAC Plus
Holy crap this sounds so good on the R200's. The space between instruments and the live hall reverberation is spectacular. This why I have so much gear (variety).
I need to up my speaker game and get a 2nd set of really good bookies to rotate in. Probably Golden Ear BFX's. Can't justify it now since I have been binging for almost 2 years buying gear.
H9


Still for sale on Amazon....for $1099. My earlier version doesn't have Bluetooth and I didn't buy mine from Amazon
https://www.amazon.com/Vacuum-Integrated-Amplifier-Bluetooth-Headphone/dp/B079PXDBD9/ref=sr_1_1?crid=116UHHU03DRMM&dib=eyJ2IjoiMSJ9.TAF6PKJHTf44E0pniVwj1g.qu1__7i5Cj0eP6n6-cGoNn3pwK5R2S4zIP7ogtiPBxQ&dib_tag=se&keywords=dared+i30&qid=1769737570&sprefix=dared+i30,aps,213&sr=8-1
A pair of 1988 SED =C= 6L6GC power tubes; (1) 1956 CBS gray plate w/horseshoe getter 12AX7 and (1) 1955 Sylvania 5814A per channel. 30 wpc.
Streaming Qobuz ---->Computer USB ---> iFi iGalvonic 3.0 noise isolator ---->Matrix Audio X-spdif 2 USB reclocker/converter --->Coax out to Eastern Electric DAC Plus
Holy crap this sounds so good on the R200's. The space between instruments and the live hall reverberation is spectacular. This why I have so much gear (variety).
I need to up my speaker game and get a 2nd set of really good bookies to rotate in. Probably Golden Ear BFX's. Can't justify it now since I have been binging for almost 2 years buying gear.
H9
heiney9
2 ·
Re: Post a picture.....any picture...part deux...
mhardy6647 wrote: »This place really is awesome!
In the past day or so, I've discovered two new uses for a Sawzall -- it really is time for me to get me one!
You have to get the SawsAll book written by Jeffrey Dahlmer. He had some great cookbooks as well.
nooshinjohn
3 ·
Re: You’re doing it wrong…
Tom, do you realize it's a blower made of snow?
I thought it was a cold air intake…

Upstatemax
11 ·
Re: Bi Amping with a AVR
Circa 1978 in Hanau, Germany.

Not in the pic but just to the outside is our 901’s.
It’s an old photo and has clipped the outside when posting.
Can just make out my old Zerostat and Discwasher brush on the right side.

Not in the pic but just to the outside is our 901’s.
It’s an old photo and has clipped the outside when posting.
Can just make out my old Zerostat and Discwasher brush on the right side.
skipshot12
3 ·
Re: Bi Amping with a AVR
You started with a G-9000?!?skipshot12 wrote: »Not to go too far off track but...
My first real stereo was in 1978. Purchased a Sansui G-9000 receiver, pair of Bose 901 III and a Technics SL-1200 MK2 TT.
Dang I miss that receiver.

(rando internet image)

2 ·
Capital one Polk deal
Capital one has a 200 dollar rebate if you spend 400 on polk at Polk audios site
Fwiw
Fwiw
VR3
3 ·



