I got 25x10-6cm/dyne for Mission effective mass of 5.5g, Denon 103r mass of 8.5g and 0.5g screws + dust.
Can this be correct ?.How does it feel to touch the cart tip with a light finger compared with a "normal" MM feel ?
I am used to the stifness of the B&O MMC 20EN that has a 30 compliance and it is quite easy to move the cantilever with a light finger.
You can use some heatsink to increase arm mass
An externally hosted image should be here but it was not working when we last tested it.
follow up to posts 4066 and 4067
Salas- thank you for your response. I misread the layout and inserted all the transistors backwards. I reversed the transistors and now have good sound.
Two questions:
1) I have not altered values of R7 and R11, as you suggested in post 4067. Should I make these changes?
2) My cartridge output is around 5mV. Can I decrease R2 to get about 6db more gain, without increasing distortion? I am running RIAA into 6db gain preamp, then into F4. If I can get more gain from RIAA, then I can eliminate preamp.
Thanks for your help and sharing your knowledge and excellent designs.
Gary
Salas- thank you for your response. I misread the layout and inserted all the transistors backwards. I reversed the transistors and now have good sound.
Two questions:
1) I have not altered values of R7 and R11, as you suggested in post 4067. Should I make these changes?
2) My cartridge output is around 5mV. Can I decrease R2 to get about 6db more gain, without increasing distortion? I am running RIAA into 6db gain preamp, then into F4. If I can get more gain from RIAA, then I can eliminate preamp.
Thanks for your help and sharing your knowledge and excellent designs.
Gary
Good. It kinda dawned on me you reversed by the way you posted the voltages. That is why I insisted on orientation guide.
1. Post the now voltages around Q5 and I will let you know.
2. Stage two carries the burden, but since it has high degeneration in your case (R6 47R) you may have some slack till objectionable distortion. Go R2=33,22,15,10R step by step and judge volume increase VS distortion increase. Last step is +6dB from what you got now.
P.S. After finished, tune down your C3 to 15.6n. See if it is preferable to you. My then model with 'lost constant' in the inverse feed looks like it has to be revised, I use a tuned Lipshitz now and it seems more correct to my ears. LOST has finished, they have gone to heaven.
Small aluminum DIY finger lift, a ton of dust & Polyolefin heat shrink surely change the FS
Will look in to that again with more test records, I can't disassemble the thing now and weigh the extras exactly, I listen to records. If there is more weight in those extras it may really is 10-20cu. Surely more in 10Hz terms than what Denon gives as 100hZ dynamic by large.
I have run again even higher resolution on several tracks, and in one channel there is a 8.3Hz sideband that the octave scaling was weighing towards. Without scaling I see 10.8Hz in both channels plus that sideband on one channel. So its 16cu (cm/dyn) when the mounting extras are assumed +2gr. Mind a rough guide x3 what Denon gives in manual. In my sample x3.2.
Well implemented the Denon DL103-R it's very difficult to beat & if we regard the price it's impossible to find something similar this nice bargain.
Do you see some measurements THD 300Hz in online press test for the best considered carts: Koetsu, Air Tight, Vdh, Clearaudio, Transfiguration, etc. it's only curiosity to know how near is the Denon DL103-R?
Do you see some measurements THD 300Hz in online press test for the best considered carts: Koetsu, Air Tight, Vdh, Clearaudio, Transfiguration, etc. it's only curiosity to know how near is the Denon DL103-R?
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Good. It kinda dawned on me you reversed by the way you posted the voltages. That is why I insisted on orientation guide.
1. Post the now voltages around Q5 and I will let you know.
2. Stage two carries the burden, but since it has high degeneration in your case (R6 47R) you may have some slack till objectionable distortion. Go R2=33,22,15,10R step by step and judge volume increase VS distortion increase. Last step is +6dB from what you got now.
P.S. After finished, tune down your C3 to 15.6n. See if it is preferable to you. My then model with 'lost constant' in the inverse feed looks like it has to be revised, I use a tuned Lipshitz now and it seems more correct to my ears. LOST has finished, they have gone to heaven.
Salas-
Voltages on Q5 (after about 1 minute) are:
D=17.6V
G=7.45
S=7.45
I will try R2 and C3 changes.
Thanks again for you help.
No I haven't seen, real technical reviews along with subjective comments they are very few. Its all blah blah lyrical audiophile speak, you know the style, you will never know real compliance, response, THD, tracking ability from those reviews.
Hello
Make R7 1k. What is the idss of q5, and any info about the system it plays, photos?
No I haven't seen, real technical reviews along with subjective comments they are very few. Its all blah blah lyrical audiophile speak, you know the style, you will never know real compliance, response, THD, tracking ability from those reviews.
Yes I know is pure marketing
Today arrived mine RIAA caps teflon film & aluminium foil, photo:
An externally hosted image should be here but it was not working when we last tested it.
I've got some not working boards, I never listen to the complete ML phono stage (No.25 I guess).
Going to use them in the Salas RIAA when I will be able to finish it. I still have to get rid of a plaster to my left leg that keeps me "busy doing nothing" at home since begining of June. And away from my "workshop" (or cave )...... grrrrr!
Going to use them in the Salas RIAA when I will be able to finish it. I still have to get rid of a plaster to my left leg that keeps me "busy doing nothing" at home since begining of June. And away from my "workshop" (or cave
)...... grrrrr!