New Jet City

tekbow

Going the Marshall route, with what sounds like an optional Jose type mod.

Handwired offshore. Wonder if Wang's had anything to do with it.

https://jetcitycustom.com/hand-wired-800/

Dave_Mc

Interesting. What's the cold clipper mod? I thought a standard 800 had a cold clipper already (unless they change the value of the resistors or something like that).

tekbow

Dave_Mc said:

Interesting. What's the cold clipper mod? I thought a standard 800 had a cold clipper already (unless they change the value of the resistors or something like that).

Had a quick google and the most commonly mentioned thing seems to be a switch to go between a Marshall style 10k resistor and a Soldano style 39k.

MentalSharps

Those look great. Glad to see Jet City back with a new line, I think this is a great approach. Wonder what it will involve to get them in the UK.

Toe_Knee

MentalSharps said:

Those look great. Glad to see Jet City back with a new line, I think this is a great approach. Wonder what it will involve to get them in the UK.

They have a UK store. But everything comes way later here. 

Dave_Mc

tekbow said:

Dave_Mc said:

Interesting. What's the cold clipper mod? I thought a standard 800 had a cold clipper already (unless they change the value of the resistors or something like that).

Had a quick google and the most commonly mentioned thing seems to be a switch to go between a Marshall style 10k resistor and a Soldano style 39k.

Ah right I thought that might be it, thanks Presumably you'd need to have that combined with an extra gain stage (the high gain mod?) to really get the most out of the Soldano style one? I could be wrong, but IIRC that great rob robinette site said that the Soldano one actually lowers the gain there, because with the extra gain stage, 10k would be too much. But (presumably, as I said, I could be wrong and probably am!) with the standard JCM800 amount of gain, using the Soldano value will actually lower the gain...

riffpowers

Hand wired JCM800 with a lead boost? Literally exactly what I've been wanting for the last 20 or 30 years.
Don't need the other mods.
Take my money.

timmypix

Yeah this looks pretty ideal - I like my mini JCM 800, but if it had a lead boost and a bit more gain it'd be faultless. Hope these come to the UK in due course.

tekbow

Dave_Mc said:

tekbow said:

Dave_Mc said:

Interesting. What's the cold clipper mod? I thought a standard 800 had a cold clipper already (unless they change the value of the resistors or something like that).

Had a quick google and the most commonly mentioned thing seems to be a switch to go between a Marshall style 10k resistor and a Soldano style 39k.

Ah right I thought that might be it, thanks Presumably you'd need to have that combined with an extra gain stage (the high gain mod?) to really get the most out of the Soldano style one? I could be wrong, but IIRC that great rob robinette site said that the Soldano one actually lowers the gain there, because with the extra gain stage, 10k would be too much. But (presumably, as I said, I could be wrong and probably am!) with the standard JCM800 amount of gain, using the Soldano value will actually lower the gain...

Sorry mate, I missed this.

Now I'm useless at electronics, but reading This (which I'm guessing you're referencing):

https://robrobinette.com/How_the_Marshall_JCM800_Works.htm

I'm getting the impression the that because, no matter the value, it only produces a small amount of gain and is more of a gain character or structure switch.

But yeah, I would be getting the high gain mod no matter what.

tekbow

riffpowers said:

Hand wired JCM800 with a lead boost? Literally exactly what I've been wanting for the last 20 or 30 years.
Don't need the other mods.
Take my money.

I'm thinking it's a volume boost rather than gain boost?

TTBZ

This looks great, it's a shame the depth mod and lead boost are an either/or as they both seem really useful. I suppose if they have an FX loop anyway then the depth mod would be more useful and a clean boost is only one extra cable to run vs a footswitch. hope they come to the UK!

riffpowers

tekbow said:

riffpowers said:

Hand wired JCM800 with a lead boost? Literally exactly what I've been wanting for the last 20 or 30 years.
Don't need the other mods.
Take my money.

I'm thinking it's a volume boost rather than gain boost?

I hope so !! Stock is enough gain for me.

MentalSharps

tekbow said:

Dave_Mc said:

tekbow said:

Dave_Mc said:

Interesting. What's the cold clipper mod? I thought a standard 800 had a cold clipper already (unless they change the value of the resistors or something like that).

Had a quick google and the most commonly mentioned thing seems to be a switch to go between a Marshall style 10k resistor and a Soldano style 39k.

Ah right I thought that might be it, thanks Presumably you'd need to have that combined with an extra gain stage (the high gain mod?) to really get the most out of the Soldano style one? I could be wrong, but IIRC that great rob robinette site said that the Soldano one actually lowers the gain there, because with the extra gain stage, 10k would be too much. But (presumably, as I said, I could be wrong and probably am!) with the standard JCM800 amount of gain, using the Soldano value will actually lower the gain...

Sorry mate, I missed this.

Now I'm useless at electronics, but reading This (which I'm guessing you're referencing):

https://robrobinette.com/How_the_Marshall_JCM800_Works.htm

I'm getting the impression the that because, no matter the value, it only produces a small amount of gain and is more of a gain character or structure switch.

But yeah, I would be getting the high gain mod no matter what.

From what I remember the higher value resistor of the Soldano produces more asymmetrical clipping, for the recognisable Soldano gain type of sound, giving a bit more of a raw edge to the distortion character

Dave_Mc

tekbow said:

Dave_Mc said:

tekbow said:

Dave_Mc said:

Interesting. What's the cold clipper mod? I thought a standard 800 had a cold clipper already (unless they change the value of the resistors or something like that).

Had a quick google and the most commonly mentioned thing seems to be a switch to go between a Marshall style 10k resistor and a Soldano style 39k.

Ah right I thought that might be it, thanks Presumably you'd need to have that combined with an extra gain stage (the high gain mod?) to really get the most out of the Soldano style one? I could be wrong, but IIRC that great rob robinette site said that the Soldano one actually lowers the gain there, because with the extra gain stage, 10k would be too much. But (presumably, as I said, I could be wrong and probably am!) with the standard JCM800 amount of gain, using the Soldano value will actually lower the gain...

Sorry mate, I missed this.

Now I'm useless at electronics, but reading This (which I'm guessing you're referencing):

https://robrobinette.com/How_the_Marshall_JCM800_Works.htm

I'm getting the impression the that because, no matter the value, it only produces a small amount of gain and is more of a gain character or structure switch.

But yeah, I would be getting the high gain mod no matter what.

No worries- I frequently miss posts too!

Yeah that's the site. I think he has a page about how the Soldano SLO works as well. I'm useless at electronics too, but it does seem to be a really good site. It basically took me from not having a clue, to still not really having a clue, but at least being a bit better! EDIT: Interesting... on the JCM800 page you linked to, it says the Soldano value is less aggressive. On the Soldano page, it says the higher the value, the less gain. Unless they're talking about gain and distortion as separate things, I guess. Grrr, I kind of know just enough about this stuff to consistently get the wrong end of the stick, lol. EDIT #2: I could be wrong, but I think that's what's happening- the cold clipper is hardly adding any gain (i.e. amplification) but is there to add distortion. So a higher value of resistor equals less gain/amplification, but more distortion. I think. 

Is the high gain mod always on, or is it footswitchable?

MentalSharps said:

From what I remember the higher value resistor of the Soldano produces more asymmetrical clipping, for the recognisable Soldano gain type of sound, giving a bit more of a raw edge to the distortion character

Interesting, thanks

MentalSharps

Turns out I was more wrong than right. 

The asymmetrical clipping from the cold clipper apparently produces a smoother, creamier sound, with more 2nd order harmonics. Which makes sense, as it's only on the lead channel on the Soldano circuits, so presumably that's what makes the lead channel fat and creamy.

There's a section here on the Cold Clipper, and also the JCM800 mod specifically: https://robrobinette.com/How_the_Saldano_SLO-100_Works.htm

My simple takeaway is the cold clipper mod Jet city are offering is a 3-way switch to make the gain character a bit less fizzy, or a bit more fizzy.

tekbow

MentalSharps said:

Turns out I was more wrong than right. 

The asymmetrical clipping from the cold clipper apparently produces a smoother, creamier sound, with more 2nd order harmonics. Which makes sense, as it's only on the lead channel on the Soldano circuits, so presumably that's what makes the lead channel fat and creamy.

There's a section here on the Cold Clipper, and also the JCM800 mod specifically: https://robrobinette.com/How_the_Saldano_SLO-100_Works.htm

My simple takeaway is the cold clipper mod Jet city are offering is a 3-way switch to make the gain character a bit less fizzy, or a bit more fizzy.

We say "sizzley" when talking about Soldano around here

hollywoodrox

Love the sound of soldano but this jet city in this comparison sounds absolutely awful 
  Must be something wrong somewhere as I’ve only usually heard good things about them.
 I didn’t think they were making amps any more due to an illness years ago but it seems they’re alive n well. Hope the jet city proves to be better,it would be great to have a cheaper Chinese SL0 alternative 

https://youtu.be/xALWL2ftD8g

Dave_Mc

MentalSharps said:

Turns out I was more wrong than right. 

The asymmetrical clipping from the cold clipper apparently produces a smoother, creamier sound, with more 2nd order harmonics. Which makes sense, as it's only on the lead channel on the Soldano circuits, so presumably that's what makes the lead channel fat and creamy.

There's a section here on the Cold Clipper, and also the JCM800 mod specifically: https://robrobinette.com/How_the_Saldano_SLO-100_Works.htm

My simple takeaway is the cold clipper mod Jet city are offering is a 3-way switch to make the gain character a bit less fizzy, or a bit more fizzy.

LOL that's how I feel most of the time. 

I've never actually tried an SLO, just an Avenger (and I've got a Jet City). Also for some reason I just assumed the cold clipper was on the normal channel as well- not sure why, maybe because it's on the JCM800 and its amount of gain is roughly similar to the normal channel?

Good call on that link- I'm sure I've read that bit of his site before, just I forgot! I'm sure I remember reading where he said that the 39k was in circuit all the time, and the other two resistor values in parallel with it made the correct overall values.

Tat2dstesh

That looks awesome, but to be honest i love the look of the 20watt heads. I hope they bring them to the uk as when I go on there all they have left is the Amelia, and I always wanted a custom 22h and one of there 2x12 vertical cabs 

Modulus_Amps

MentalSharps said:

Turns out I was more wrong than right. 

The asymmetrical clipping from the cold clipper apparently produces a smoother, creamier sound, with more 2nd order harmonics. Which makes sense, as it's only on the lead channel on the Soldano circuits, so presumably that's what makes the lead channel fat and creamy.

There's a section here on the Cold Clipper, and also the JCM800 mod specifically: https://robrobinette.com/How_the_Saldano_SLO-100_Works.htm

My simple takeaway is the cold clipper mod Jet city are offering is a 3-way switch to make the gain character a bit less fizzy, or a bit more fizzy.

According to Mike Soldano he adjusted that gain stage cathode to get symmetrical clipping out of the cathode follower circuit, was on the Tone Talk episode if you want to hear the man say it himself. Robs site is good but you can't look at one stage in isolation and then use that as a basis for what the final output will be.

If you stick a 39k in a stock 800 the drive will be really weak.

tekbow

Modulus_Amps said:

MentalSharps said:

Turns out I was more wrong than right. 

The asymmetrical clipping from the cold clipper apparently produces a smoother, creamier sound, with more 2nd order harmonics. Which makes sense, as it's only on the lead channel on the Soldano circuits, so presumably that's what makes the lead channel fat and creamy.

There's a section here on the Cold Clipper, and also the JCM800 mod specifically: https://robrobinette.com/How_the_Saldano_SLO-100_Works.htm

My simple takeaway is the cold clipper mod Jet city are offering is a 3-way switch to make the gain character a bit less fizzy, or a bit more fizzy.

According to Mike Soldano he adjusted that gain stage cathode to get symmetrical clipping out of the cathode follower circuit, was on the Tone Talk episode if you want to hear the man say it himself. Robs site is good but you can't look at one stage in isolation and then use that as a basis for what the final output will be.

If you stick a 39k in a stock 800 the drive will be really weak.

So maybe not worth having then?

I think it's this OR the second master, seems like the second master is a winner