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| Junction |
 Posted: Wed Jun 06, 2007 6:49 pm Post subject: |
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Joined: 06 Jun 2007
Posts: 22
Location: Kuala Lumpur
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Not sure that a hotplate will give you any noise reduction, noise is generally relatively constant to the audio signal, so by effectively turing down the volume, whether with a volume control or some attenuation device, yes you also turn down the noise, but the relationship of nosie `to signal is still the same - does this make sense. I can't see how hotplate would reduce noise, not that I've studied it??
If you put the MV at full volume, your amp will sound the same as if the MV was not there, the nice thing about an MV is you can get loud clean or loud tube distortion and anything in between, without having to crank the amp to marshall earsplitting terror.
For clean, MV up and input Gain down, for more fat distortion, MV down and input gain up.
Without an MV, for clean you must run the amp softer and for distortion, it has to be loud. I guess this where the hotplate's or attenuator are also useful.
Cheers |
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| danger3s |
| Posted: Wed Jun 06, 2007 7:15 pm Post subject: |
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Joined: 30 Oct 2006
Posts: 267
Location: Kuantan
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I got this from THD's website;
| Quote: | Built-in Noise Reduction
The THD Hot Plate® is the only attenuator on the market with built-in noise reduction to reduce the hiss and hum between notes. We've designed a passive, single-ended noise reduction system which provides approximately 10 dB of broad band noise reduction without gating or pumping, and without affecting the tone of the amp. A by-product of the noise reduction circuit is that it generates light as you play. The harder you play, the brighter it glows. |
Not sure how to technically explain that, but from my experience I do notice less hums when playing at fairly same level as without hotplate. My amp wasn't that noisy anyway and my guitar is properly shielded and uses humbucker so I can't comment much on that part. My best guess is it's just a simple high pass filter that reduces some of the higher frequency buzz and in overall reduces what we perceived as 'volume' of the noise.
Do post some pictures of the cab when you have some time here or on your website. Oh, I've tried to google for Junction amp without luck, can you please give me the direct link to your website? Thanks  |
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| Junction |
| Posted: Thu Jun 07, 2007 7:05 am Post subject: |
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Joined: 06 Jun 2007
Posts: 22
Location: Kuala Lumpur
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I could use a Hotplate for testing, that would be cool. These things must cost RM1000+ right? Does anyone sell them in KL and how much.
If you want one of these as a kinda MV control, then wow, I would consider this expensive. Adding a MV to asn amp requires one dual gang potentiometer, some wire and solder!
Had a look at their site and quite confused about their claimed noise reduction. Single ended noise redcution circuits normally work like a dynamic tone control tuned to the noise frequency, i.e. as the guitar volume decreases, suddenly the noise becomes more notiecable so the noise frequency is automatically turned down. Now they claim their single ended noise reduction is passive, which means it does not work dynamically like I explained. "Passive" to me soumnds liek a fixed filter, i.e. a hum notch filter and a hiss nothch filter, which permanently notch these frequencies out, but this would then affect the tone of the amp/guitar.
It sounds like sales crap to me ... but I could be proven wrong!
I'll post some pictures when my amps/cabs are ready. My web sites suck, nothing there yet, will also post when there is something useful.
Michael |
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| keysersoze |
| Posted: Thu Jun 07, 2007 9:12 am Post subject: |
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Joined: 21 Aug 2006
Posts: 142
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| ultraman_cosmo wrote: | | gapster wrote: | there's this other dude
making and selling amps ..called " junction"
anybody has any info on this ? |
kita ceta pasal ceriatone amp daaa. Atau kita ceta pasal ayam serama, atau itik serati. |
 kalu ler pakcik tuh paham..hehehe |
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| browndog2woof |
| Posted: Thu Jun 07, 2007 10:02 am Post subject: |
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Mod Squad
Joined: 10 Nov 2006
Posts: 1357
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zzz
Last edited by browndog2woof on Wed Jul 04, 2007 10:48 am; edited 1 time in total |
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| Junction |
| Posted: Thu Jun 07, 2007 12:08 pm Post subject: |
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Joined: 06 Jun 2007
Posts: 22
Location: Kuala Lumpur
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Hey Dog, whats your amp and speaker cabinet.
Is the amp a JTM45 from Nik, if so this is a rocket, great choice?
Tell is abouit the speaker cabinet?
Michael |
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| browndog2woof |
| Posted: Thu Jun 07, 2007 12:39 pm Post subject: |
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Mod Squad
Joined: 10 Nov 2006
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zzz
Last edited by browndog2woof on Wed Jul 04, 2007 10:48 am; edited 1 time in total |
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| Junction |
| Posted: Thu Jun 07, 2007 1:13 pm Post subject: |
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Joined: 06 Jun 2007
Posts: 22
Location: Kuala Lumpur
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I am in the midst of renovating my studios, so rather than PM you, I'll post a note here, when the studio & showroom is open for business and anyone can come around and check us out, try the amps etc.
I was interested in your 2 x 12 cabinet, did you get this made locally or did you buy in.
Michael |
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| browndog2woof |
| Posted: Thu Jun 07, 2007 3:09 pm Post subject: |
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Mod Squad
Joined: 10 Nov 2006
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zzz
Last edited by browndog2woof on Wed Jul 04, 2007 10:49 am; edited 5 times in total |
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| Junction |
| Posted: Thu Jun 07, 2007 3:22 pm Post subject: |
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Joined: 06 Jun 2007
Posts: 22
Location: Kuala Lumpur
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Ah okay, I know the ones, it the same as mine as I worked with Nik on teh design of these, a combo cab size which can be assembled as a speaker cab only or a combo cab by adding or removing one panel.
Well you will be happy then.
Michael |
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| danger3s |
| Posted: Thu Jun 07, 2007 10:29 pm Post subject: |
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Joined: 30 Oct 2006
Posts: 267
Location: Kuantan
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| Junction wrote: | | I could use a Hotplate for testing, that would be cool. These things must cost RM1000+ right? Does anyone sell them in KL and how much. |
Yeah should be around that price if brand new. I bought mine used from the US for $210. The market is manipulated by them so it'd be great if you can come up with cheaper alternatives. I've seen a few DIY projects on how to make attenuators and it shouldn't be anywhere close to or higher than rm150. |
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| browndog2woof |
| Posted: Tue Jun 12, 2007 9:55 am Post subject: |
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Mod Squad
Joined: 10 Nov 2006
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zzz
Last edited by browndog2woof on Wed Jul 04, 2007 10:50 am; edited 1 time in total |
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| ultraman_cosmo |
| Posted: Tue Jun 12, 2007 10:04 am Post subject: |
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Mod Squad
Joined: 29 Oct 2004
Posts: 1665
Location: Mines resort city
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bro,
Ne buat aku goyang neee... hahhahaha.
Eh, guitar srv ada lagi. ingat dah pakai tele.
Bila aku boleh test... hhahahahhahahahahahahhahahahahahahhahahaha.
JTM tu memang mengiurkan.
_________________
Maiden, loudness, ACDC, black sabath, deep purple, jimmi and vinnie moore
And Now all jazz. |
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| browndog2woof |
| Posted: Wed Jun 13, 2007 11:34 am Post subject: |
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Joined: 10 Nov 2006
Posts: 1357
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zzz
Last edited by browndog2woof on Wed Jul 04, 2007 10:50 am; edited 1 time in total |
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| IZZI |
| Posted: Wed Jun 13, 2007 2:16 pm Post subject: |
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Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia
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| browndog2woof wrote: | | ultraman_cosmo wrote: | bro,
Ne buat aku goyang neee... hahhahaha.
Eh, guitar srv ada lagi. ingat dah pakai tele.
Bila aku boleh test... hhahahahhahahahahahahhahahahahahahhahahaha.
JTM tu memang mengiurkan. |
fretted bros,
a) bro cosmo - minggu lepas minggu kahwin season la, campor lak bird flu.... maybe minggu ni ok kot!
b) bro bleh2 - woit! ko turun klumpo mari la call aku, boleh ngetest!... aku dah belasah dah ceriatone aku ni ha ha ha ha! pukul satu kat knob lagi! ha ha ha!.. cuma jensen tu dara lagi, ketat lagi la, aku punya used greenbacks tak sampai2 lak lagi ni, hmm, slos betol!
woof! |
barang kalau dah confirm ada, baru la laju bang..
_________________
Gelanggang guitar : http://guitarden.starahead.com |
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