Randy Myers
Active member
You're welcome Joe... I just know how everyone loves seeing photos (me included) .... 
JOB 225 2-channel Power Amplifier ... update ...
- Thread starter joeinid
- Start date
You're welcome Joe... I just know how everyone loves seeing photos (me included) .... Jack
Active member
Looks great Randy. If necessity dictates that you stack components on top of each other you might want to look into some of these. Available from many Ebay sellers as well as Grainger and Ferguson supply houses for use under appliances and HVAC gear in multi-story buildings. Mapleshade sells them for many times this price. I like them better than Vibrapods, plus they don't stain like they do. Sure there are "better" solutions but at a much higher price. Will allow the bottom pieces in the two stacks to "breath."
http://www.ebay.com/itm/4-pack-Anti...778569?hash=item3d0d28bc89:g:DXcAAOSw0HVWCbwF
http://www.ebay.com/itm/4-pack-Anti...778569?hash=item3d0d28bc89:g:DXcAAOSw0HVWCbwF
Randy Myers
Active member
As always, thank you for the suggestions. I have to check closer but I think the W4S has a still point type foot on it. I won't be using the CD much, but best to have some isolation for those occasional time when I do. I will look into the Teac. I know one of the things Teac added to the UD-503 model was still point feet. Oh well....
Jack
Active member
Randy
My suggestion was related to putting air circulation space between the bottom and top component. From looking at your photos and my STP the feet on both the Teac and STP are just some type of composite rubber. Putting the pad under those feet will give you an extra inch of circulation which would be important for the amp, plus the Sony is not providing any isolation properties for the STP. As I said Mapleshade has been those HVAC isolators for over a decade as "audiophile" isolation devices for three times the Ebay or Supply House price.
My suggestion was related to putting air circulation space between the bottom and top component. From looking at your photos and my STP the feet on both the Teac and STP are just some type of composite rubber. Putting the pad under those feet will give you an extra inch of circulation which would be important for the amp, plus the Sony is not providing any isolation properties for the STP. As I said Mapleshade has been those HVAC isolators for over a decade as "audiophile" isolation devices for three times the Ebay or Supply House price.
Randy Myers
Active member
Jack I totally agree with you. I actually just moved the Teac up to the top with the Surface because I felt that the Job might be getting a little hot. The STP actually has rather tall feet, probably about 3/4" or so and are on four points. I think air flow won't be an issue and I think they have built some isolation into the feet. The Teac are standard low feet and definitely needed something. Moving it was the best bet ...
I think when the Rothwells arrive i am going to try them out. The volume controls goes up to 80 on the STP, but when listening at about 10-12 starts getting loud. 15 -17 is loud. I don;t think I would ever listen to it above 20. So the Rothwells may actually help this.
...I think when the Rothwells arrive i am going to try them out. The volume controls goes up to 80 on the STP, but when listening at about 10-12 starts getting loud. 15 -17 is loud. I don;t think I would ever listen to it above 20. So the Rothwells may actually help this.
Jack
Active member
Randy
Most likely the reason for the position of the volume knob as it relates to loudness level is due to you using the balance connections from the Teac to the W4S. That doubles the voltage coming out of the Teac. You can try swapping in a pair of SE cables and see what effect that has.
Most likely the reason for the position of the volume knob as it relates to loudness level is due to you using the balance connections from the Teac to the W4S. That doubles the voltage coming out of the Teac. You can try swapping in a pair of SE cables and see what effect that has.
Randy Myers
Active member
Since I already have purchase the Rothwells would there be any negative in using them? On Rothwells web site they talk about nothing but positive effects. Do you have any feelings about this?
I would prefer to keep the XLR cables inline if possible. I purchased some very nice Wireworld cables and I do not have another set of decent RCA cables...
I would prefer to keep the XLR cables inline if possible. I purchased some very nice Wireworld cables and I do not have another set of decent RCA cables
...
Randy Myers
Active member
New photos with the reconfiguration...
Jack
Active member
Randy
I can't see the Rothwell's having any negative effects between the STP and the Job, I just wonder if it will have any as what needs to be lowered is the output from the Teac. Doesn't hurt to try though. Even if you don't have a "good" pair of SE cables left, just for the sake of knowing you might want to just swap in a pair of anything and see if it achieves what you want as it relates to the volume control. Then you will know and can plan accordingly.
I can't see the Rothwell's having any negative effects between the STP and the Job, I just wonder if it will have any as what needs to be lowered is the output from the Teac. Doesn't hurt to try though. Even if you don't have a "good" pair of SE cables left, just for the sake of knowing you might want to just swap in a pair of anything and see if it achieves what you want as it relates to the volume control. Then you will know and can plan accordingly.
Randy Myers
Active member
Yea, that is true. Never hurts to test. I am hoping that the Rothwells arrive shortly so that I can get those tested also. I prefer the idea of the using them if they help achieve a tad better control of the volume at lower levels. It is not like there is anything inherently wrong with the STP control. The volume control is amazing feeling. I just want to have a tad more range on it.
srosenberg
New member
- Joined
- Jun 30, 2014
- Messages
- 20
The Rothwell attenuators may well help in this regard, however, if you do not find them completely transparent - listen for a softening of transients, reduction of dynamics and 'jump' - you may want to check out alternate means of attenuation. I've found LDR based units to be remarkably good.
-Scott
Randy Myers
Active member
Opinions on power cord configurations. The CD and Surface cannot be switched out, so they are set. I have 2 Wireworld cords which I am using with the Pre-Amp and the DAC and the heavy duty Hirakawa on the amp and the heavy duty one that came with the W4S on the REL. Would you suggest anything different?
I just switched the cords from the amp and REL. The wires look similar except what is printed on them. The only difference is the W4S cable has 14 AWG x3 on it while the Hirakawa has 18 AWG x3 on it. Assuming gauge which would make the W4S heavier duty. Again not understanding this at all, but trying to use common sense.
God, this is gonna drive me crazy.... the Teac cable has again all the same things printed on it except it is 16 AWG x3, so gonna switch it out for the Hirakawa ... So the W4S cable on the Job amp and the Teac cord on the REL amp.
I just switched the cords from the amp and REL. The wires look similar except what is printed on them. The only difference is the W4S cable has 14 AWG x3 on it while the Hirakawa has 18 AWG x3 on it. Assuming gauge which would make the W4S heavier duty. Again not understanding this at all, but trying to use common sense.
God, this is gonna drive me crazy
.... the Teac cable has again all the same things printed on it except it is 16 AWG x3, so gonna switch it out for the Hirakawa ... So the W4S cable on the Job amp and the Teac cord on the REL amp.
Randy Myers
Active member
I have been reading many reviews on one of the least expensive component going into my system, the Rothwell Attenuators. Now I can't wait until they arrive! It sounds like they will be a nice addition in that all that I have read stress that it is not good to have to run your equipment with the volume at the lower extreme. The equipment performs much better if you can move the volume control up a bit because extremes never sound as good, if I understand what I am reading correctly. Therefore I think they should certainly help!
Also every review including some very knowledgeable people here in this forum all say that the Rothwell are the best of the best and completely transparent. I certainly am hoping that this is the case!
Also every review including some very knowledgeable people here in this forum all say that the Rothwell are the best of the best and completely transparent. I certainly am hoping that this is the case!
CPP
Active member
Randy I might have missed it, are you using the balanced connections ?
Randy Myers
Active member
Balanced into the Teac, but RCA to the amp. I think Jack had suggested trying RCA into the Teac. Worth a try but I already have some nice WW XLR cables and I had already ordered the Rothwell prior to deciding on the W4S. The other consideration is that prior to going the route of the XLR I did a lot of research and it came away recommending using the balanced cables where possible ... Man there are a lot of considerations... but I guess this is what makes it so much fun...
BTW... I have distinctly noticed that the pre-amp is starting to smooth out a bit. maybe 30+ hours on it, so a long way to go still...
... Man there are a lot of considerations... but I guess this is what makes it so much fun...BTW... I have distinctly noticed that the pre-amp is starting to smooth out a bit. maybe 30+ hours on it, so a long way to go still
...
CPP
Active member
Balanced into the Teac, but RCA to the amp. I think Jack had suggested trying RCA into the Teac. Worth a try but I already have some nice WW XLR cables and I had already ordered the Rothwell prior to deciding on the W4S. The other consideration is that prior to going the route of the XLR I did a lot of research and it came away recommending using the balanced cables where possible
BTW... I have distinctly noticed that the pre-amp is starting to smooth out a bit. maybe 30+ hours on it, so a long way to go still
I say give balanced a try from amp to pre and onward to the Teac. You never know it could be audiophonic bliss . I've read that some balance connections (circuitry) can add 6db to the path.
Randy Myers
Active member
The Job does not have balanced inputs, only RCA inputs (unbalanced) .... The Rothwell does -10dB right on the amp input... The real issue is that the Job is notorious high gain, therefore the attenuators should help ...
I could try RCA from the Teac to the W4S just as a check. I really would prefer to keep the XLR in the setup.
I just checked and there is no gain difference using RCA cables versus the XLR balanced cable out of the Teac to the Pre-amp. Hopefully the Rothwells will arrive this week and that will allow for a bit more volume control at low levels.
.... The Rothwell does -10dB right on the amp input... The real issue is that the Job is notorious high gain, therefore the attenuators should help ...I could try RCA from the Teac to the W4S just as a check. I really would prefer to keep the XLR in the setup.
I just checked and there is no gain difference using RCA cables versus the XLR balanced cable out of the Teac to the Pre-amp. Hopefully the Rothwells will arrive this week and that will allow for a bit more volume control at low levels.
Randy Myers
Active member
I have definitely noticed the pre-amp is smoothing out nicely. It still has a long way to go but I can see that it is going to come in line very nicely!!!
Randy Myers
Active member
The Rothwells arrived. Seems to give a lot more control of the lower volume range, can move many more clicks without it getting too loud. Where 17 was feeling rather loud now it is about 28 or so. Definitely better. I have only listened to a couple songs but i don't hear any deterioration in SQ, but simply just more low level control.
The dynamics seem quite substantial... very soft passages are soft and then something hits and it is like holy crap, get me a new pair of pants... now I don't know if this is because I have had the pre-amp running for the past two days pretty straight while working and sleeping, etc., or that the Rothwells allow the volume to no longer be set in the basement of it's range, giving the pre-amp a chance to breath a little????????????????
The dynamics seem quite substantial... very soft passages are soft and then something hits and it is like holy crap, get me a new pair of pants... now I don't know if this is because I have had the pre-amp running for the past two days pretty straight while working and sleeping, etc., or that the Rothwells allow the volume to no longer be set in the basement of it's range, giving the pre-amp a chance to breath a little????????????????