I have an ST-70 Series II with solid state rectification and the bass is just incredible with diode design. Dynaco amps are treasures, the first time I heard the hologram of midrange I became obsessed and own several SCA-35's as well. It's all about that sweet delicate midrange that floats into your ears.
In case you’re still wondering, I have a 35 with 90db speakers in my living room. I’ve never had to come close to cranking it all the way up to get all the volume I need.
First i thought ST-70 is better,but afer listening few times i came to the conclusion that ST-35 is better for me.Richer and more natural sound.ST-70 is just a tiny bit sharp.
st 70 sounds a bit larger with more air and attack, maybe a bit lower noise floor as you can hear more space around instruments. the 35 has a sweeter tone, with the 70 being just a bit colder Both sound great
ST-70 sounded significantly better to me. Better spacial cues (room echo), tone, punch. Funny cause I've always read that the 35 was the better sounding amp and I also prefer the el84 sound.
Probably nit-picking but a couple times I heard, "based on the original circuit" but the ST35 shown has a choke in it and the ST70 has different driver tubes (not 7199) so not exactly original - I suspect that copper thing on the ST70 is a silicon rectifier, as well? Maybe not, but it aint a 5AR4. Overall, however, nice video and very interesting. Thanks.
I really enjoy videos.The reviews are excellent.I love the comprehensive analysis and comparisons of your receivers. I am relatively new to my analog journey.I recently purchased a pair of klipsch lascalas 1.I am on the Decware list,but with a 2 year wait ,I need help could you please recommend a receiver.I was looking at Alan Eaton monoblocks,the dynaco st35 and the st70. Thanks and keep up the great videos.
Yes dynaco tube amps sound best with good tubes and original coupling capacitors, I see you are using amtrans caps, I can use that for my mk3s, those russian pio not good enough, and what coupling caps are for st35? For my st35 am still using original dynaco blue caps because they sound equally good.
just gor my ST70 and PAS3 from Kenny. So far I love them both. I did notice on this video that the screws that hold the cover in place are not there. It is suggested to put them back in if you remove the cover. Any thoughts?
I borrowed a pair of MK iv for a while, new ones, not the original transformers unfortunately, but they sounded really good. I like mono blocks, gives you the real estate to design a proper power supply with less compromises, except cost......
The st 35 amp sounds so good to me!👍 I heard a very clear sound! It is very good match with klipsch speaker and st 35amp. By the way, what did you use the preamp for?
Love your channel. Went out and bought LRS+ after watching your video. I own original Dynaco ST35 and ST70 amps. The original ST35 is 8 and 16 ohm (not 4 and 8 as you say). However I noticed you have added a choke? on the chassis, or perhaps a transformer for the 4 ohm? P.S. I'm trying out the ST35 on the LRS+ right now, and am surprised there's plenty of volume.
I know this sounds like a crazy idea, but I'd be interested to know whether you've ever tried your Dynaco ST35 with your Maggie LRS+? Of course it doesn't make sense with only 17.5wpc, and I was limited to using the 8 ohm tap, but there seemed to be plenty of power, along with a little more tube believabilty (in my 15' x 18' room). But like all things in audio, you never know' til you try it. Just a suggestion of course, but would like to hear your impressions, if you get a chance. Thx drD E.
Hi, there’s no plans for anything I make. I just make measurements of the preamp and figure it out as I go. Plans are hard to interpret sometimes and I’m an extremely visual worker and create as I go.
So I have a question, I'm about to pick up in a couple of weeks a completely refurbished pair of dynaco Mark 3 amps and before I decided on the purchase I went and auditioned them and they sounded great but I couldn't help but also get the feeling that they were a bit slow sounding. Almost kind of like instead of music flying out of the speakers at speed, it kind of oozed out slowly, if you can appreciate my analogy. Anyway I guess my question is do you notice that with the ST70 or the ST35? I'm like I said both of the Mark 3s have been completely refurbished and upgraded with new driver boards and new tubes. I don't know you know I don't necessarily have a problem with the presentation that I heard when I demoed them but I can't help but get the feeling though that ultimately they're going to be great for jazz and folk music and the like but when I want to listen to Black Sabbath, which I do from time to time, they won't sound as good. They were demoed with a pair of totem acoustic speakers whose model I cannot remember, and they had been hooked up to a audio research preamp whose model number I also can't remember. I'm going to be hooking them to a pair of Klipsch heresy 1 that have been refurbished and using a schiit freya preamp.
I have a few videos with the MkIII's that Kenny Russell did which my nephew in-law has. I checked my video history and it looks like I hadn't posted them but I'm checking again to be sure. Yes, the vintage sound is more laid back and slower sounding. If you prefer the newer sound that's more analytical, you may want to consider something newer but remember that the preamp such as the Schiit Freya will offset some of that but only "if" you are using the Freya Plus in tube mode. Passive and solid state mode will slow it further. I'm not familiar totem acoustic speakers so I can't say how they will or will not offset the sound of the MkIII's but I'm very familiar with all the Heresy lines and they would be a very good match for the MkIII's. Look at the first two posts of this link. I don't know how to fully agree with what Bob Latino is saying which I've copied here. Bob Latino says.... "Understand also that when Hafler designed that circuit (and power supply) there was no digital music. Vinyl records were the signal source of the day and although theoretically they are capable of a 50 to 60 dB dynamic range most records rarely exceed 30 - 40 dB. CD music is capable of 90 dB. Dolby Digital up to 120 dB and DVD audio up to 144 dB" end quote. Make sure you read the first two posts in the link below. The issue for me is the differences between digital and vinyl are all over the map so I don't know how he could derive at that conclusion. dynacotubeaudio.forumotion.com/t465-traditional-driver-circuit-designs-versus-modern-all-triode-designs All the stuff Kenny does is based on the original circuits which is why I like his work but you really need to play the MkIII's with your own system and room acoustics to see how they'll match. My ST70 from Kenny sounds a bit slower and more laid back than the ST35. Both are great, so it's just gonna depend how you want to hear the music. In my opinion, you will have a pretty good match with the Heresy. It's really difficult to judge with different speakers in different rooms.
@@drde4010 I appreciate you taking the time to right such an extensive comment and I'm definitely going to get them and I believe the Freya, as you say, will make up some of the difference, plus of course the heresies. After I made that comment the other day I went and read up on the totem acoustics speakers and from everything I read about them most people seem to agree that they have a very warm sound to them, so I kind of get the impression that what sort of enhancing what was already there with the amplifiers in terms of sort of that slowed quality I already mentioned. Yes I do understand that room acoustics as well as having it set up with everything I already have will really generally impact ultimately what I hear. I just thought it might be a good idea to ask somebody who obviously seems so familiar with dynaco amplifiers. And considering I'm getting such a fantastic deal on a refurbished pair like I am, if I ultimately don't like them I can sell them on and definitely make a profit or at the very least get my money back.
One of the best vintage American amplifiers. Glad to own one ST 70 as well.
Is it powerful enough?
I have an ST-70 Series II with solid state rectification and the bass is just incredible with diode design. Dynaco amps are treasures, the first time I heard the hologram of midrange I became obsessed and own several SCA-35's as well. It's all about that sweet delicate midrange that floats into your ears.
Really appreciate you posting such aural comparisons. Subscribed and looking forward to future content. Thanks for taking the time to make these vids!
Awesome, thank you!
Simply excellent review!
I really enjoy
listening to how much enjoyment you are getting from this gear. awesome
Thank you it’s a nice feeling too. 👍
In case you’re still wondering, I have a 35 with 90db speakers in my living room. I’ve never had to come close to cranking it all the way up to get all the volume I need.
Magnificent sound!
First i thought ST-70 is better,but afer listening few times i came to the conclusion that ST-35 is better for me.Richer and more natural sound.ST-70 is just a tiny bit sharp.
I agree the St-35 is a much sweeter and balanced amp. El84 is nicer tube than El34.
@@mikaelweiss9243 Too bad can't handle low sensitivity speakers...
st 70 sounds a bit larger with more air and attack, maybe a bit lower noise floor as you can hear more space around instruments. the 35 has a sweeter tone, with the 70 being just a bit colder
Both sound great
That sounds incredible! As if they were performing live right in front of you. 🎶👂😍
ST-70 sounded significantly better to me. Better spacial cues (room echo), tone, punch. Funny cause I've always read that the 35 was the better sounding amp and I also prefer the el84 sound.
me too, a rather remarkabe difference!
Bit sharp soudning thoguh...
A very nice comparison, I would love to hear some vocals. Thanks!
I’ll tell you what. I’ll do exactly that just because you asked. Hang tight.
Both sound Great.. 🎉✌
Probably nit-picking but a couple times I heard, "based on the original circuit" but the ST35 shown has a choke in it and the ST70 has different driver tubes (not 7199) so not exactly original - I suspect that copper thing on the ST70 is a silicon rectifier, as well? Maybe not, but it aint a 5AR4. Overall, however, nice video and very interesting. Thanks.
Thanks for your honest videos, when you have time make more videos
I really enjoy videos.The reviews are excellent.I love the comprehensive analysis and comparisons of your receivers. I am relatively new to my analog journey.I recently purchased a pair of klipsch lascalas 1.I am on the Decware list,but with a 2 year wait ,I need help could you please recommend a receiver.I was looking at Alan Eaton monoblocks,the dynaco st35 and the st70. Thanks and keep up the great videos.
TV is Banished, Better over Fireplace! Music is number one in that house
Yes dynaco tube amps sound best with good tubes and original coupling capacitors, I see you are using amtrans caps, I can use that for my mk3s, those russian pio not good enough, and what coupling caps are for st35? For my st35 am still using original dynaco blue caps because they sound equally good.
just gor my ST70 and PAS3 from Kenny. So far I love them both. I did notice on this video that the screws that hold the cover in place are not there. It is suggested to put them back in if you remove the cover. Any thoughts?
@@wronghandshooter yea mine are currently back in place. When the cover goes on it rests on the upper edge of the screws slightly elevated.
Great sounds, good comparison bet. the two, maybe some vocals next time.
Here’s the vocal version. ua-cam.com/video/dIBUXPrd5mw/v-deo.html
Great demo and discussion. What record did you use?
ST-35 more open sound but lack of power for low impedance speaker , ST-70 give more body and tone...
The battle of the ages
Now I had some old tube heads who told me the MKIV is the one to own. They said it is the lowest maintenance.
I borrowed a pair of MK iv for a while, new ones, not the original transformers unfortunately, but they sounded really good. I like mono blocks, gives you the real estate to design a proper power supply with less compromises, except cost......
The st 35 amp sounds so good to me!👍 I heard a very clear sound! It is very good match with klipsch speaker and st 35amp. By the way, what did you use the preamp for?
The preamp was the Dynaco PAS M otherwise I’d just have to use a passive with a volume control.
@@drde4010 thanks
Love your channel. Went out and bought LRS+ after watching your video.
I own original Dynaco ST35 and ST70 amps. The original ST35 is 8 and 16 ohm (not 4 and 8 as you say). However I noticed you have added a choke? on the chassis, or perhaps a transformer for the 4 ohm?
P.S. I'm trying out the ST35 on the LRS+ right now, and am surprised there's plenty of volume.
Thank you for the kind words. Kenny Russell at getdynaco.com made this ST35 to handle 4 ohm loads.
I know this sounds like a crazy idea, but I'd be interested to know whether you've ever tried your Dynaco ST35 with your Maggie LRS+?
Of course it doesn't make sense with only 17.5wpc, and I was limited to using the 8 ohm tap, but there seemed to be plenty of power, along with a little more tube believabilty (in my 15' x 18' room).
But like all things in audio, you never know' til you try it. Just a suggestion of course, but would like to hear your impressions, if you get a chance. Thx drD E.
I’ve used an ST70 with my .7 Maggie’s quite well. I’ll give it a shot and see with the 35.
Amazing tones. What speakers are being used here
Thanks, Klipsch Forte 1 which drop to 32 hz. The newer models are 38 hz.
My two favorite Forte are the 1 & 2.
Love your page will follow. Looking for some Hersey ll speakers if you ever come across some. Thx.
@@robertrosejr1 yeah, I love my heresy too that’s for sure
Working with Kenny on a potential build on the St-35. Can you please tell me if yours is stock or what upgrades are on it. Thx. Bob
Kenny will know best.
Weren't they nickel plated, not chrome?
I think you are right. Maybe it was nickel.
I noticed your Pas preamp has a wood enclosure, was this a DYI or purchased offsite?
DIY skip to 3:45 ua-cam.com/video/Lko3okWpkdw/v-deo.html
St35 better sound n more details...
I plan to build and enclosure for my Dynaco preamp. Do you have any prints, close up photos of the enclosure you built for your preamp?
Thks...
Hi, there’s no plans for anything I make. I just make measurements of the preamp and figure it out as I go. Plans are hard to interpret sometimes and I’m an extremely visual worker and create as I go.
So I have a question, I'm about to pick up in a couple of weeks a completely refurbished pair of dynaco Mark 3 amps and before I decided on the purchase I went and auditioned them and they sounded great but I couldn't help but also get the feeling that they were a bit slow sounding. Almost kind of like instead of music flying out of the speakers at speed, it kind of oozed out slowly, if you can appreciate my analogy.
Anyway I guess my question is do you notice that with the ST70 or the ST35?
I'm like I said both of the Mark 3s have been completely refurbished and upgraded with new driver boards and new tubes.
I don't know you know I don't necessarily have a problem with the presentation that I heard when I demoed them but I can't help but get the feeling though that ultimately they're going to be great for jazz and folk music and the like but when I want to listen to Black Sabbath, which I do from time to time, they won't sound as good.
They were demoed with a pair of totem acoustic speakers whose model I cannot remember, and they had been hooked up to a audio research preamp whose model number I also can't remember.
I'm going to be hooking them to a pair of Klipsch heresy 1 that have been refurbished and using a schiit freya preamp.
I have a few videos with the MkIII's that Kenny Russell did which my nephew in-law has. I checked my video history and it looks like I hadn't posted them but I'm checking again to be sure. Yes, the vintage sound is more laid back and slower sounding. If you prefer the newer sound that's more analytical, you may want to consider something newer but remember that the preamp such as the Schiit Freya will offset some of that but only "if" you are using the Freya Plus in tube mode. Passive and solid state mode will slow it further. I'm not familiar totem acoustic speakers so I can't say how they will or will not offset the sound of the MkIII's but I'm very familiar with all the Heresy lines and they would be a very good match for the MkIII's. Look at the first two posts of this link. I don't know how to fully agree with what Bob Latino is saying which I've copied here. Bob Latino says....
"Understand also that when Hafler designed that circuit (and power supply) there was no digital music. Vinyl records were the signal source of the day and although theoretically they are capable of a 50 to 60 dB dynamic range most records rarely exceed 30 - 40 dB. CD music is capable of 90 dB. Dolby Digital up to 120 dB and DVD audio up to 144 dB" end quote.
Make sure you read the first two posts in the link below. The issue for me is the differences between digital and vinyl are all over the map so I don't know how he could derive at that conclusion.
dynacotubeaudio.forumotion.com/t465-traditional-driver-circuit-designs-versus-modern-all-triode-designs
All the stuff Kenny does is based on the original circuits which is why I like his work but you really need to play the MkIII's with your own system and room acoustics to see how they'll match. My ST70 from Kenny sounds a bit slower and more laid back than the ST35. Both are great, so it's just gonna depend how you want to hear the music. In my opinion, you will have a pretty good match with the Heresy. It's really difficult to judge with different speakers in different rooms.
@@drde4010 I appreciate you taking the time to right such an extensive comment and I'm definitely going to get them and I believe the Freya, as you say, will make up some of the difference, plus of course the heresies.
After I made that comment the other day I went and read up on the totem acoustics speakers and from everything I read about them most people seem to agree that they have a very warm sound to them, so I kind of get the impression that what sort of enhancing what was already there with the amplifiers in terms of sort of that slowed quality I already mentioned.
Yes I do understand that room acoustics as well as having it set up with everything I already have will really generally impact ultimately what I hear. I just thought it might be a good idea to ask somebody who obviously seems so familiar with dynaco amplifiers.
And considering I'm getting such a fantastic deal on a refurbished pair like I am, if I ultimately don't like them I can sell them on and definitely make a profit or at the very least get my money back.
Can I run my Sansui AU 6500 a pre amp with this St-35 ?
I'm not sure as I've never had a Sansui.
ST70 seems to be more refined to me.
Hi, what are the speakers you are using?
These here are the forte ones
14:44 st35
11:44 st70
St35 sounds better
The preamp you using there ain't very good.
@@villageroma how so?