Passinwind

[quote name='CameronJ' timestamp='1485251377' post='3222400'] This is exactly the kind of thing I'm looking for, thanks! [/quote] De nada. You can see some examples of panels I've had done on my website. By all means PM me if you have any questions on the process, or just post them here if you prefer.

[quote name='CameronJ' timestamp='1485211890' post='3222257'] I'm in a bit of a strange situation. I love my amp & cab. They do everything I want/need and more. The trouble is visually I don't feel like they match up. Observe below: A handsome looking head. A beautiful tweed cab. But together they look a bit like I've tried to build an amp rig out of lego! Ideally I'd have a more neutral coloured head so the cab can be the focal point. Now I'm not exactly a master craftsman so I wonder if I'd be able to get someone to the refinish the faceplate in black/grey whilst retaining the lettering for the controls? Has anyone attempted a similar mod? Am I crazy for wanting to do this? [/quote] Look at the Schaeffer AG website: [url="http://www.schaeffer-ag.de/en/."]http://www.schaeffer-ag.de/en/.[/url] I've used the American sister company (Front Panel Express) many times for my DIY projects very happily. They won't do a refinish but can easily fabricate a whole new front panel with a wide variety of cosmetic options. Their CAD software is pretty simple to use and at least over here the turnaround is very fast, rarely more than a week. Probably the most old school look would be powder coating for the panel and infilled engraving for the control labels.

[quote name='wateroftyne' timestamp='1485091704' post='3221013'] How much of this stuff is actually a blood relation to the old TE? It looks to me like people are getting excited about a name and a colour. [/quote] So tempting to just say "same as it ever was." The Trace brand was just never a very big deal at all in the US, or at least not in my world. I tracked down one of the rare dealers in the 80s, liked what I heard quite a bit, and did seriously consider buying one because of the cool compressor format. But amps with sliders are a real turnoff for me and they were very expensive here, so I never followed through. I only ever knew two people who owned one and both ended up coming across my repair bench eventually. NAMM was full of excellent sounding new small to medium size Class D bass amps. IMO Peavey have their work cut out for them just with keeping their own brand name viable in today's market. Past attempts to go more upscale have tended to end in tears, so I wouldn't hold my breath on things going in that direction.

[quote name='Musicman20' timestamp='1485162458' post='3221542'] I don't think the bass side of things had anything super exciting, for my tastes anyway. Loads of awesome guitar stuff though. [/quote] Just curious: what would it take to get you excited? I barely even noticed that there were guitars there beyond the ones in the next booth to me and the Ibanez and Heritage jazz boxes.

[quote name='doctor_of_the_bass' timestamp='1485009864' post='3220378'] Anyone over here in Anaheim attending the show, come and say hi, am working on the Enfield Sims stand, we have George Anderson from Shakatak here with us too! Booth 3496 in Hall D, near the back of the hall as you enter from the front! [/quote] Wish I had seen this earlier. I just got home from a 2 1/2 day stint at the show, which was just crazy busy at the booth I was in. I did get to spend a few minutes with Sibob, which I enjoyed a great deal. This was my first year officially exhibiting any of my stuff, and I'm still having a hard time digesting how it all played out. I was there mostly to get feedback on my open source onboard preamp design, but the amp I brought along as an afterthought ended up being in use for pretty much every minute of the show. It was kind of surreal to watch the show open via webcast while I was in the airport waiting for my plane, and seeing someone killing it on my amp, which I didn't think would even be set up until I arrived.

[quote name='fleabag' timestamp='1484686062' post='3217563'] Looking damn good Charlie PS how do these differ from say, our Alan at ACG's own filter pre ? [/quote] Thank you. His is for sale and mine is for DIY'ers. John East designs and builds his and some geezer hippie tech-not-engineer does mine. Please take a read through the TB thread I linked for details on my design. My "filter" section is focused just on being a treble control, for starters. I have zero experience with Alan's preamps beyond having read a bit on his website, but I am hoping to at least have a quick listen at NAMM. I built a few outboard preamps based on Craig Anderton's Superfilter when his book first came out, and had always meant to revisit the general concept. Even before that, I was a big fan of Jack Casady, Phil Lesh, and Stanley Clarke, and I still feel that there are many untapped possibilities out there. I have the greatest respect for ACG/East, Wal, and Alembic for all that they've done with resonant filter technology, and I've tried to just do my own thing and not to compete with their excellent implementations. Edit: I actually met Alan at NAMM and had a brief chat. I now have even more respect after seeing his work up close, and really wish I could have heard how his preamps work so I could get a better feel for how far I have to go.to get anywhere near one of the gold standards for this general type of preamp.

[quote name='Merton' timestamp='1484806701' post='3218549'] Interesting. The Elf could be a good little backup head. I wonder what power amp module it uses... [/quote] Peavey have pretty much always made their own. I'll ask if I have time to get up to their suite.

[quote name='Passinwind' timestamp='1481007948' post='3188846']The one in the middle is my latest design, a three band format with a "filter" style treble control section. I expect to post it eventually as an open source project including circuit board fabrication files.[/quote] I have now followed through on this: https://www.talkbass.com/threads/the-passinwind-open-source-preamp.1259692/. The final spec won't be released for another week or two, just want to gather up NAMM feedback before I do that. Here are the stomp box versions that I just sent off: And at least one will be in a friend's bass at the show as well.

[quote name='markstuk' timestamp='1484588821' post='3216575'] Sure.. SMPS - sort of synonymous with Class D, but you're right :-) [/quote] Just depends on your perspective I guess. Ive been using Class A/B and Class H QSC amps with SMPS for ages now, and had an iAmp with a nonlinear analog supply for a few years as well. Just another aspect like MOSFET or Solid State that also both do apply to Class D amps. In any case, this new Aguilar looks to be right in the sweet spot of the current actual buyers' market, IMO. Looking forward to checking it out at NAMM in a few days.

[quote name='markstuk' timestamp='1484585302' post='3216524'] only 4.9 lbs vs 18 lbs for the AG500.. I suspect Class D.. [/quote] The AG500 amps are also Class D, but using an older school power supply arrangement.

[quote name='wateroftyne' timestamp='1484299684' post='3214398'] Class D isn't new any more - I got my first one about 13 years ago. IME, the novelty seems to be wearing off for a growing number of people. [/quote] True, they have been around since the 1980s and are clearly the standard now. Not a novelty, just the goods for the vast majority of people in the market. I know you don't feel that way, but IME you are in a very small minority. OTOH, I've never heard any amp that couldn't be a lot better, so bring on the next class! I would absolutely be on to in-ears if I were still gigging in situations that required monitors.

[quote name='MoonBassAlpha' timestamp='1484229478' post='3213748'] Does anyone know if the Genz Shuttle 3.0 AND 6.0 have h.p. filtering, and if so, at what slope? Cheers, MBA [/quote] They have quite a bit (more than I like TBH) but I've never measured the exact response, which probably changes quite a bit depending on settings, as many amps do.

3 basses, about to go down to two I think. I think I've I've owned all of 8 over 45 years, rarely more than two at any given time. The last time I bought one was 13 years ago. Cabs: a single 112 which handles all my gigs these days. I simply wouldn't take a booking that requires anything more. For practice at home I have a pair of homemade 115 cabs and a variety of top boxes with various mid drivers and tweeters. Amps: two DIY solid state heads, five or six different preamps (also mostly DIY jobs), and three power amps. I'd happily sell off most of that stuff at this point, as I really am only looking for at most two or three specific tones anyway. I've always been more keen on the amplification side and relatively indifferent to collecting basses. Same for guitar as well.

[quote name='Chienmortbb' timestamp='1481925934' post='3196420'] Designing speaker cabinets is what I call squeezing a balloon. You squeeze out something you don't want and something else squeezes out somewhere else. Charlie (passinwind) has designed an HPF and we have had many happy hours emailing back and forth about it. [/quote] Indeed, and I've now done several alternative versions. But for me the utility is more in tone control and feedback suppression than speaker protection.The cabs I use work just fine with my tube preamp that measures flat to 20Hz or so. The generalizations about "typical" spectral content of bass signals are maybe open to further discussion. There are a ton of variables and I found little commonality as I measured more and more basses. The long thread on Talkbass quickly devolved in a very contentious affair. My current take: measure it yourself, draw your own conclusions, and don't assume.

[quote name='alexclaber' timestamp='1481900888' post='3196140'] It's much more complicated than you think! [/quote] Yep. And as usual, there's no free lunch.

Nope: "[i]Buy something once, why buy it again?[/i]"

[quote name='Phil-osopher10' timestamp='1481812543' post='3195366'] Is the only way to prevent damage a [b]low pass[/b] filter of some description? [/quote] That would cut highs, and therefore be more relevant to the tweeter.

Let no good deed go unpunished. Thanks for taking the time to do all of that so thoroughly.

[quote name='Phil Starr' timestamp='1481788893' post='3195088'] Right, so little difference to my experience then. Thanks. [/quote] Just within 5-6 miles of me there are at least eight venues that have house systems, not counting summer festivals, which nearly always have PA support.. This, for a population of right around 10,000 people between three towns.When I lived on the east coast it was a lot closer to what Bill describes though. So as usual, I'd say it just depends.

[quote name='julesb' timestamp='1481726188' post='3194592'] [url="http://www.scottsbasslessons.com/podcast/in-conversation-with-kai-eckhardt"]http://www.scottsbas...th-kai-eckhardt[/url] [/quote] He's a great guy, I really enjoyed talking with him at length in between sets at a hippie wedding gig I was mixing and he was playing with Garaj Mahal quite a few years ago.

[quote name='BigRedX' timestamp='1481725228' post='3194578'] Not using a regularly checked email address defeats the object when it comes to reminders for things I am interest in like items on my watch list that I haven't decided whether or not to bid on. I think that the only real solution is to use two different browsers for looking at stuff on eBay. One where I'm not logged in for random browsing and checking out links in this forum, and then another where I am logged in for stuff that I am considering buying or bidding on. I was hoping that there was a more convenient solution. [/quote] Maybe just use porn mode (private browsing) when you're tire kicking?

[quote name='Bassbadger' timestamp='1481277165' post='3191105'] The pots can be hard to locate. I have them made to my specs in Korea for the Stinger. [/quote] Cool. A 500K "lefty" pot works fine in a pinch too and I actually prefer the way that works when using the MM 2-band preamp with some non-MM pickups. CTS makes a decent one that's not all that hard to find.

[quote name='Phil Starr' timestamp='1481617010' post='3193664'] I should have said was if the speaker was making 25% of the allowable excursion with the tone control flat then it would probably be doing 100% of the allowable excursion with the sort of bass boost he was applying. Tone controls are tricky things, there are a lot of different circuits used to control tone. Passinwind will vouch for that. A lot of tone controls are still based on the traditional Baxendall design. The trouble is this circuit will boost sound most the further you get away from it's first frequency of action, extreme bass is boosted more than upper bass. [url="http://www.learnabout-electronics.org/Amplifiers/amplifiers42.php"]http://www.learnabou...mplifiers42.php[/url] This means that when you boost bass to get a bit more warmth the subsonics are boosted even more than the bit you are interested in. Turning the bass control to 3 o'clock as the OP did is hardly extreme, but he may well have ended pumping four times as much power as he thought into his speakers. I want to help him get good results and to understand what may have happened but most of all I want to be able to offer the best possible advice to people who build these speakers. It's hard to explain situations where there are many variables in simple ways to the non-techy reader. Let's hope that when it gets back it is working as Blue Aran say it is. [/quote] Agreed to every bit of that. I could say much more, but I'll save that for some more overtly tech oriented thread.

[quote name='M@23' timestamp='1481618743' post='3193681'] Confirmed, it is ICEpower. [/quote] Cool, the 700ASC is a great sounding and feeling piece.

[quote name='Dan Dare' timestamp='1481536786' post='3192946'] Yep. Gotta be an Icepower 700ASC. Everyone - MESA, Genzler, Aguilar, etc - uses ICE modules. Bloody Bang & Olufsen won't sell them to end users, only to OEM manufacturers. A piece of p*ss to build into an amp - make 8 connections and mount the module in a hobby/project case (£40 on eBay), add a decent pre-amp and bingo. But no, us punters have to pay £700 plus to one of the afore-mentioned for the privilege. Hi-fi world is even worse. Plenty of manufacturers put B&O modules in a pretty case, add a few connectors and a pretty blue LED and sell them for thousands. It's rip off city. [/quote] It's just sound business practice IMHO. Providing tech support to one off builders is a potential nightmare, and the liability and regulatory issues are far from trivial. I'd suggest that you vote with your wallet and just buy from Hypex, who have always supported DIY'ers. Or figure out how to write up a sufficiently real looking business prospectus, which worked for me.