Search found 86 matches
- Tue Jul 05, 2011 7:27 am
- Forum: JLM Audio Kits
- Topic: VUPPMGR40v2 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD
- Replies: 60
- Views: 270115
Re: VUPPMGR40 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD
Have a stereo compact box and scale coming as well as a 1unit rack case scale. Looking for input on what other scale levels or types people are interested in like mono, 0DFS etc Stereo compact box will have a optional pre made stereo D/A card for spdif and toslink inputs. Hi Joe, very very nice,0dB...
- Mon Jul 04, 2011 10:56 pm
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 326693
Re: AMP HEAD Build Thread
WOW Udo looks great. That is one heavy duty headphone box :shock: :D Thanks for the kind words 8) :D Let me know what info you need for the mixer version you mentioned. Thank you Joe, i love this heavy duty stuff,although it´s small it´s heavy-weight tool. And:"Mine goes to eleven" :D I think I´ve ...
- Sun Jul 03, 2011 8:57 pm
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 326693
Re: AMP HEAD Build Thread
Hello everybody, here´s my first take on a phoneamp (for "learning" :mrgreen: ),the Amphead SP ( S elf- P owered). Absolutely dead-quiet and powerful. Used OPA2604s,driven at +/-24v. Made the optional switch for mono & mute with a 3PDT Centre OFF (3rd pole is for leds). Case is from Modushop,italy;P...
- Thu Jun 09, 2011 7:16 pm
- Forum: JLM Audio Kits
- Topic: AC/DC & POWERSTATION KIT BUILD THREAD
- Replies: 350
- Views: 810694
Re: AC/DC & POWERSTATION KIT BUILD THREAD
Hello Joe, just wanted to say a big "thank you" for the new ac/dc -layout-absolutely great to print the modification guides on the back same as putting on more 0v-points and so forth.Now it´s even easier than before (it was easy though :D ) to build these great little beasts!And black is beautiful t...
- Sat Jun 04, 2011 5:06 pm
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 326693
Re: AMP HEAD Build Thread
If you do a rough drawing on the inputs and control per channel I can show how to best do it with the AMP HEAD. Hi Joe, attached a quick block diagram on what I´m thinking of,a small satellite-system with a 1RU mainstation containing your ac/dc as psu and the audio-distribution (incoming signals wi...
- Sat Jun 04, 2011 2:12 am
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 326693
Re: AMP HEAD Build Thread
Each balanced in is a H pad made from R1 to R4 10k and VR 10k log pot to the +/-in of the opamp. So to add a 2nd 3rd or 4th etc mix input you can add pairs of 10k to each side of VR if you only want the one master level control for all inputs. Or make extra H pads and wire to U1 pin 2- and pin 3+ s...
- Mon May 23, 2011 8:33 pm
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 326693
Re: AMP HEAD Build Thread
Hi Joe,Joe Malone wrote:
HI Udo
Schematic ships with the amp head kit.
MONO/ON/MUTE switching using center off toggle switch.
thank you very much SIR!!!
Best regards,
Udo.
- Mon May 23, 2011 1:28 am
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 326693
Re: AMP HEAD Build Thread
Mono and mute options can be added with one center off toggle switch and no other parts wired across the 4 outside pot terminals. (I will do a drawing of this ASAP) Hi Joe, any news on this or a schemo maybe? I guess by using a center off toggle switch it must be connected after the de-balancing ci...
- Wed Mar 30, 2011 7:57 am
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 326693
Re: AMP HEAD Build Thread
Hello Joe,
I´m highly interested in buying these.
Can you tell us a bit more about the ic-choice,mix,mute and mono options?.
Also which currents we have to calculate with for setting up our psu(s)
Really looking forward to it,
thank you in advance and best regards from germany,
Udo.
I´m highly interested in buying these.
Can you tell us a bit more about the ic-choice,mix,mute and mono options?.
Also which currents we have to calculate with for setting up our psu(s)
Really looking forward to it,
thank you in advance and best regards from germany,
Udo.
- Sat Dec 11, 2010 9:43 am
- Forum: JLM Audio Kits
- Topic: AC/DC & POWERSTATION KIT BUILD THREAD
- Replies: 350
- Views: 810694
Re: AC/DC & POWERSTATION KIT BUILD THREAD
Thank you so much Joe-that was the fastest "fix" i have ever done in my life!!! It is after midnight here so i got a little tired and was loosing concentration but thought of a short somewhere :lol: Now i must not dream of it-everything set up and working fine-cool! Have a nice weekend and thank you...
- Sat Dec 11, 2010 8:29 am
- Forum: JLM Audio Kits
- Topic: AC/DC & POWERSTATION KIT BUILD THREAD
- Replies: 350
- Views: 810694
Re: AC/DC & POWERSTATION KIT BUILD THREAD
Hi Joe, I have built some of your PSUs before,but now I have a problem with an AC/DC.The negative rail is not working. I use a small 2 x 18v(2x290mA) torroid.center tapped reading fine about 21 Volts AC each side. I did the mod. with the 2 wire links and doubbler to "d" to achive +12v DC on V2. Both...