New JLM Products for New York 123rd AES 2007
Posted: Thu Sep 27, 2007 8:33 pm
Support forums for JLM Audio Kits and Products
https://www.jlmaudio.com/forum/
Hey Joe. Unfortunately, I can't log in to the GS Forum at the moment... ( some kinda problem). Anyway that link can be posted here? BTW, What is the ball park price of these? Thanks....Joe Malone wrote:Thread at gearsultz with more of the new gear and info
http://www.gearslutz.com/board/new-prod ... dules.html
I am planning a simple single 99v 500 series pre like the BA which we will probably make into a kit as well.Will there be DIY versions of these like the BA pres?
The lunchbox shown is a standard API 6B just with our mixer fitted into the spare space beside the normal power supply. But we do have some racks in the works at the moment.Is there going to be a DIY lunchbox available? If so then I'm in!
JLM14 & OEP for inputs and JLM111DC (Yes it is three times the size of a API 2503 output. And Yes it does just fit.)Joe, im curious...what kind of transformers are being used in the mic pre?
Dual99v500 mic pre uses 2 of our discrete 99v opamps (New +/-16v version) as a 2 stage gain path to provide 75dB of gain with ease. It is aimed at getting big but realistic vocals and acoustic instruments. With the impedance control 200 to 3k it goes from dark and slow to airy and fast tone wise. A centre detent at Z is the best starting point.Anyone know what type of design the preamps are...transformers used etc. (I mean the TG 500) VERY cool looking!
Yes it is my pride and joy and was hoping to have it finished for the AES but didn't want to rush it and not have it 100% (Matt has been gunning for this one to be finished as we have had a normal rack proto going now for about a year that he has been using) (Anyone who has been to the workshop and has heard it please don't give away what it is as I want this one to be a real surprise)Any chance of a compressor!?
HPM500 6PAK Balanced input mixer with switched panning and level control per input. Has ribbon cable input that plugs into the JLM Buss connector mic pre EQ and compressor modules. or you can wire the ribbon cable to the back plane to the 6 XLR output pins 2 and 3 if not using JLM modules. plugs into 10 IDC power ribbon cable for power. High power modified hybrid output amps can drive even the most difficult headphones to clean maximum output level. Also HP output is perfect for sending a mix be recorded. (The extra knob to the far right is part of the listening setup in our test lunchbox. Not part of the normal mixer)what's that on the very right end? Some sort of mixer!!!???
The PEQ500 is a full EQP-1A type circuit but with 8 extra low frequencies and 5 extra high frequencies. The Q (bandwidth) control for the high boost bell curve can go twice as wide as a normal Pultec and it can also do one thing I have never seen on any other Pultec or clone do. Pushing on the Q control will switch the high boost to a shelf with the Q control still varying the slope going into the shelf.- someone want to take a shot at the EQ functions, kind of a baby Pultec, right? Okay, I think I get it now, the HI cut band is a switchable shelf and the HI boost is parametric? - LOW boost and cut at the same sweep able frequency?
Nice job Joe. Wonder what they look like inside!
The Dual99v500, TG500 and PEQ500 will not be kits. But we may make a single 99v500 type kit with gain pot and impedance pot etc next year.As soon as there's a DIY of these I'll buy, thinking of a lunchbox of:
* Dual 99v
* TG500
* PEQ500
* Compressor
The headphone mixer sits in the small wasted space beside the normal API power supply. There is no more room left. VU meter is not needed with JLM 500 modules as they all clip at +25dBM or higher which is higher than all A/D input levels. The headphone 2watt amps are based on our hybrid opamp so the output is so clean it can be used for a stereo mix recording if needed.The headphone mixer looks interesting, but I'd need more info. If there's space a VU meter or two could be useful.
The 500 series kit would be a new PCB with metal work for the API standard. So you would only be able to use your 99v opamps and transformers from any of the other JLM kits. We are looking into making VPR standard racks of 3 x 500 modules in a 1 rack unit high case and 11 x 500 modules in a 3 rack units high spaces as well as something else a bit different. Also looking at the high volts power as well for our modules since they can handle it easy.Oh, one more thing... Are you going to make 500-series retrofit kits for your other DIY products? I'd really dig being able to put my BA's into a 500-format case. Someone needs to put together a more expansive series of 500 racks... Six spaces is nice, but considering the plethora of stuff out there you'd need a whole shed of the standard 6-space models to house it all. The only other thing that'd be nice is being able to run w/hotter power supplies for opamps that can take more juice.
Almost. Standard lunchboxes come set to +4 in and out unless you cut the links and rejumper them. So best to use +4 in and outs all the time on new modules so the below connections.Which pins on the rear connectors of the cards are connected? Maybe something like -
1 Chassis
2 Output + (+4) -> XLR Pin2
4 Output - -> XLR Pin3
5 Audio Gnd <-> XLR Pin 1
7 Input - <- XLR Pin 3
9 Input + (Mic) <- XLR Pin 2 (preamps)
10 Input + (Line) <- XLR Pin 2 (eq)
12 +16V
13 0V
14 -16V
15 +48V
VPR spec statesWhat's the power consumption of the cards (given lunchbox PS are limited)?
I haven't got to listen to the CD's we received at the AES yet unfortunately But hopefully Matt & I will this week now I am over the jetlag. I saw the OPUS CD sitting on top of the CD pile probabily due to the great cover artwork Will let you know as soon as I get a listen.Hi Joe, It was great meeting you guys at AES! Did you like the cd? it's ok, dont hurt my feelings. Anyway, I see your price quote for the EQ says "first production run" so will there be a price raise afterwards?