stevie

[quote name='TKenrick' post='221375' date='Jun 18 2008, 01:47 PM']Here's a little bit of Anthony Jackson for you, from the Chaka Khan album 'Naughty'. Questions, comments, criticisms and suggestions are all welcome... Enjoy![/quote] I think such a fine piece of work deserves a 'well done' at least. Keep 'em coming. Perhaps something a bit easier next ?

[quote name='radansey' post='225368' date='Jun 23 2008, 08:59 PM']OK, similar question to other posts on here. My Peavey TNT115s quotes 150W in 4 ohms, however getting hold of 4 ohm replacement speakers is proving difficult at present so therefore I am thinking of getting an 8 ohm. Apart from a decrease in overall gain, what are the advantages/disadvantages in doing this? Assuming that halving the impedance does not mean a halving in available gain, can assume a max gain in the region of 100W into 8 ohms? I also want to wire-in a connector to enable me to parallel-wire a second 8-ohm cabinet at a later date if required. Ross[/quote] Thank you for spelling impedance correctly.

[quote name='SteveK' post='224422' date='Jun 22 2008, 08:17 PM']I've got a copy (notation) and a scanner that works If it's possible to send jpegs via PM and you want a copy, PM me. Steve EDIT: Can't figure out how to send attachments in PMs, any help appreciated.[/quote] There's an Insert Image icon, but it links to a web address. I can't see how it can be done either.

[quote name='chris_b' post='223872' date='Jun 21 2008, 10:35 PM']Bass players on the Grease Soundtrack album are: Mike Porcaro, William David Hungate, Max Bennett, David Allen Ryan, Wm. J. Bodine, Dean Cortez and Harold Cowart. John Farrar wrote You're The One That I Want and Hopelessly Devoted To You. Toto was formed as a result of the musicians working together on the album.[/quote] You certainly pick up some useful information on here!

[quote name='gypsymoth' post='223709' date='Jun 21 2008, 05:49 PM']it is a brilliant song - there's a couple more in there too.[/quote] Hopelessly Devoted to You (which I think was also a Farrar song) was one of the first songs I learned on the bass (not that long ago). It's nice and easy to play, easy to read, and is so, so tasteful. Another goodie that I find really fun to play, although it's a bit cheesie, is My First, My last, My Everything, by Barry White. Could that be Wilton? [url="http://www.youtube.com/watch?v=qc1oiER2VTE"]http://www.youtube.com/watch?v=qc1oiER2VTE[/url]

[quote name='stevie' post='223693' date='Jun 21 2008, 05:14 PM']An Australian called John Farrar wrote it. As he was a bass player (spent a while with the Shadows), I have always assumed he played on the recording. The bass line really makes the song, I agree.[/quote] A quick Google tells me I'm mistaken here. John Farrar was primarily a guitarist. He did have a hand in arranging the soundtrack, though.

[quote name='Jase' post='223278' date='Jun 20 2008, 09:56 PM']It's amazing!! Who played it...anyone know?[/quote] An Australian called John Farrar wrote it. As he was a bass player (spent a while with the Shadows), I have always assumed he played on the recording. The bass line really makes the song, I agree.

[quote name='JD1' post='223660' date='Jun 21 2008, 04:13 PM']Got it. (By the way, Andrew Levy on the cover sporting a rather splendid shirt).[/quote] If someone wouldn't mind scanning the transcription and emailing it to me, I'd really appreciate it. I'm not a tab person either.

[quote name='wizbat' post='222871' date='Jun 20 2008, 01:10 PM']Hugh Manson has been around building guitars as far as I can remember since back in the early eighties. I first met him around 1985 and his guitars are some of the finest I,ve ever seen. He is the man behind all those wonderfully technical guitars used by Matt Bellamy from Muse. I,d be very suprised if you were not completely happy with anything done by him. Hope this helps.[/quote] I can also vouch for Hugh's reputation as one of the best luthiers in the country. Plus, he's a really nice bloke.

[quote name='redstriper' post='222571' date='Jun 19 2008, 11:38 PM']Just thought of something else - I've got some spare 3/4" MDF sheets - would they do instead of plywood? Also, I forgot to thank Stevie for the offer of speakon sockets - so belated thanks for that.[/quote] I used half inch ply to get the weight down as much as possible (as Alex recommends), but there's nothing wrong with 3/4 MDF. It will probably only add about a pound or two to the total weight. If you want to put some Speakons in the back of the Trace cab, the offer still stands. I reckon that anyone playing reggae bass in Anglesey deserves all the help they can get!http://basschat.co.uk/style_emoticons/default/laugh.gif

[quote name='redstriper' post='222564' date='Jun 19 2008, 11:26 PM']Stevie, you could be right about it being a Studio 15B - I did some research online and couldn't find a vintage 250 watt Fane speaker at all even though the guy at Fane thought it was 250 watts going from the model number. It says 200 watts on the speaker itself, as you can see here - These are the specs I found - Manufacturer/ Dia. Power Z SPL Vas Model RMS ohms 1W/1m Fs cu ft Qts xmax Fane Studio 15B 15" 200W 8 102dB 45Hz .10 0.44 0.440" This seems to show a high sensitivity which may explain why it's so loud. Not sure whether there is an alternative neo speaker that would do any better all round, bearing in mind my thirst for deep dub bass.[/quote] It sounds like the people you talked to at Fane don't remember their old drivers. The Studio 15B was a 200 watt driver with a 2.5 inch voice coil. It worked quite well and went quite low in a compact cabinet. The specs are wrong, though. I found these: Fs 42Hz Le 0.6mH Qts .37 Qms 3.8 BL 27.3Tm VAS 128l xmax 11.18mm As Alex rightly points out, the xmax is wrong. I reckon it's p/p, which would make the xmax 5.5mm, which is pretty good. It's not 102dB either - I modelled it at 97dB, which is also fine. I modelled the frequency response, too, and it shows a good bass extension. I'm sure we can suggest an alternative driver that will work, if you decide to go down that path. Fane's customer service has certainly bucked up. I don't think you'll find many manufacturers inviting you over to try stuff out. Quite impressive.

[quote name='redstriper' post='222391' date='Jun 19 2008, 06:57 PM']Thanks again Stevie, this is all very useful. The holes are definately for jack sockets and I have seen the same amp on ebay as a stand alone head with the sockets installed, like this - The speaker is a Fane TEF 153 250 watt 8 ohm made in 1985. I could stick with this speaker if I can lift the cab without the weight of the amp, or I could change it for a lightweight neo alternative. I am happy with the sound of the speaker, but it would be nice to have a little more volume before distortion at louder gigs. Just need to find where my wife hid the toolbox and I'm in business...........[/quote] Ah well, jack sockets it is then. The TEF is Trace's own number, but it looks to me like the Fane Studio 15B, which was their version of the Electrovoice 15B. Fane made lots of OEM models, so you can never be sure, but Trace could tell you. It would also make it easier to find a lightweight alternative if you wanted to. I'll post the pics of my modest conversion over the weekend. Maybe it will help.

[quote name='redstriper' post='222329' date='Jun 19 2008, 05:11 PM']The wire is not soldered to the speaker so no problem at that end and I can fit a jack plug to the cab and solder the speaker wire to it. Re: attaching the wire from the amp to the 2 jack sockets to give the possibity of an extension cab - Do I split the 2 wires and solder them to each socket identically and would this give 2 x 8 ohm outputs?[/quote] The wire should be marked positive and negative in some way - either by colour or by a stripe. You solder each of the two wires to the two connectors/tabs on the first jack socket, which should also be marked positive and negative (the positive one is the one furthest from the input). You then wire from the positive and negative of the the first socket to the positive and negative of the second socket. That's it. It might be worth checking if the holes aren't for XLR sockets rather than jacks - they could well be. If they are, the hole will be about 23mm in diameter. Let me know, because I could send you a pair of Speakons to fit. I''ve got some new ones I don't need. For your bits and pieces like handles and feet, you could also check out the Blue Arran website, which is pretty good. Your speaker looks like a Fane 15B, which is a very, very nice driver.

[quote name='chris_b' post='222231' date='Jun 19 2008, 03:31 PM']I upgraded my pickups to Bartolini and got a massive improvement in the tone. Later I thought I'd got the rest of the way and put a Jazz bridge pickup in and an active pre amp. The J pickup wasn't worth it as it made very little difference to the tone! Just my experience.[/quote] My experience, too. I've got a Yamaha BB1100S with a P/J setup and the Jazz does nothing for me at all. It sounds like a guitar and I hardly ever bother with it. It's certainly useless on its own.

Meant to strip the pictures out before replying - sorry 'bout that.

[quote name='redstriper' post='222269' date='Jun 19 2008, 04:17 PM']Thanks again Stevie - that's really encouraging although I'm a hopeless DIYer - I ended up in casualty last time I tried anything and am now banned from Stanley knives for life. But this doesn't look too difficult, it looks like you screwed the pre amp directly into the ply wood and I guess the power amp is screwed separately to the back and/or base. My amp needs a slot for air vents as you can see in the pic - Another problem is that the amp is hardwired to the speaker although there are holes for 2 1/4" jack output sockets that are not installed. I'm not sure how to wire these correctly from the 2 wires that now go to the speaker. [/quote] You're welcome, red. I think I glued a small piece of plywood at the front to double up the thickness to take the screws. At the back, I might have glued a small piece of softwood to take the screws. I just used the mounting holes provided. Not rocket science. The rear output was already connected - so I just unsoldered the cable to the speaker. You would have to unsolder the speaker wire at the speaker end, fit a couple of jack sockets and connect the wire to the jacks. I'm not sure if that would be a step too far for you, but it is a very easy soldering job. You would probably also have to duplicate any vent holes in your existing cab. Anyway, I'll take some pictures at the weekend so that you can see in detail what I did. But I can see you get the picture. Might be worth a try. You can always fit the amp back to the cab if it doesn't work out.

Here you go. You would need to buy the plywood, handle, feet and paint. You could of course use a different handle, or put the handle on the top if you like.

[quote name='redstriper' post='222178' date='Jun 19 2008, 02:28 PM']Thanks Stevie, I have considered replacing the speaker and it is an attractive option financially, but a bit risky not knowing how it will sound in the cab. It would also reduce the weight considerably if I could remove the amp and put it in a separate case, but this is not quite so simple because the pre and power amps are 2 separate parts, the pre amp is rack mountable while the power amp is screwed to the top and back of the combo. If I can overcome these technical problems, I will give it a go because I am happy with the sound if not the weight.[/quote] I had exactly the same problem with my Ohm combo, which is not too dissimilar to yours. I removed the head section - which also has a separate preamp and power amp - and made a sleeve for it out of 1/2 inch plywood. I fitted a nice leather handle to one end, some rubber feet, and painted it black. It really looks quite good and is a very easy one-handed carry. You don't need to be a carpenter to do it, but it will take you a weekend unless you're a DIY whiz. I'm actually using a different cab at the moment, but I've still got the Ohm one here. I'll try to post a pic later and could also post some detailed pictures at the weekend if that would help. Come to think of it, this could be something others might have been considering doing.

Just to add to the many good suggestions - replacing the speaker in your Trace with a neodymium model would cut the weight of your combo by about ten pounds. I don't know if that would be enough. You might even consider it as an interim measure, as it would be a lot cheaper than the alternatives.

[quote name='lowhand_mike' post='221559' date='Jun 18 2008, 05:20 PM']give it a rest guys. stevie if you can provide a link to prove your point then please do so as it would be informative reading (i'm a geeking it up tonight ) i'm sure if you could actually prove this information then it would be of great benifit to bill where as bill info has always been well backed up. otherwise can it. :ph34r:[/quote] Here you go ,mike. [url="http://www.htguide.com/forum/showthread.php4?t=29184"]http://www.htguide.com/forum/showthread.php4?t=29184[/url] Have a look at the post from Kal Rubinson, a well respected audio journalist who writes for Stereophile. He says: "Yes. 1/2 wavelength is the generally accepted spacing maximum. Dunno about d'Appolito's standard but ANY two drivers spaced more than 1/2 wavelength apart and reproducing the same signals will show destructive (and constructive) interference in the plane OF their displacement." There's plenty more if you look for it. I'm bowing out of this discussion now, as it is getting nowhere and I've had enough of the insults.

I notice you are still perusing the board, Bill. I thought you had better things to do.

[quote name='Bill Fitzmaurice' post='221538' date='Jun 18 2008, 04:58 PM']Stevie, the one compliment I will pay to you is that you remind me very much of the Honorable President of the United States, George W. Bush. Like he, everytime you open your mouth you somehow manage to stick your foot further down your throat than the time before. Your above statement is complete and utter gibberish. I'll let Alex point out why if he cares to, I have far more important things to attend to. Cutting my toenails is first on the list.[/quote] That really is not a very convincing reply, but I must accept that it's the best you can do.

[quote name='Bill Fitzmaurice' post='220890' date='Jun 17 2008, 07:43 PM']Stevie, you'd have a lot more success arguing the fine points of loudspeaker design if you understood any of them. If you did you'd know that drivers may be placed on the horizontal plane if they are crossed over below the frequency that is 1 wavelength at their CTC spacing. Debating the laws of acoustics is a waste of my time, as being laws they are not subject to debate. I'm usually quite patient at explaining said laws and how they affect gear choices to those who have an interest in furthering their education. OTOH you strike me as one who clearly has already acquired all the knowledge he ever cares to, and that being the case please refrain from wasting any more of my time.[/quote] 1 wavelength is way too much for interdriver spacing. Anyone who familiar with the laws of acoustics would know that where the time displacement between two low frequency drivers corresponds to one-half of one wavelength, the outputs of the two low frequency drivers will null. 180 degrees and all that. Spacing needs to be less than half a wavelength. Back to the Loudspeaker Cookbook for you. It's interesting that you use the term 'debate' here, because I have not seen you debating on any of the threads you have been involved in on this forum - merely pronouncing, and belittling others.

[quote name='alexclaber' post='221428' date='Jun 18 2008, 03:06 PM']Aha! "This entire thing goes back to the Eleanor Powell "double tap" incident at MGM studios in the early 1930s. When monitoring playback of Powell tapdancing an echo was noticed on the taps. John Hilliard, subsequently the greatest of all horn designers, was a young sound engineer at MGM and traced the problem to the 8 foot difference in the path lengths of the horns in the 2-way Western Electric monitor speaker. Hilliard did experiments that showed that the effect was time and frequency dependent and that a delay of less than 3 milleseconds (about 3 feet) was inaudible using crossvers between 350 to 800hz. A result of this incident and WE's refusal to market their improved Fletcher loudspeaker was the decision of MGM sound honcho Douglas Shearer for MGM to design their own improved system which would among other things minmize time delay. Hilliard was put in charge of the project which then developed the famous Shearer Horn. An entire galaxy of talent worked on this system including Hilliard, James Lansing, Bob Stephens and even RCA's Harry Olson. Note that though the folded basshorn of the Shearer cut time delay compared to the WE snail horns it didn't eliminate it totally but Hilliard's later Altec Voice of the Theatre did. So it seems that even though Hilliard thought some delay was inaudible the existence of any at all still nagged at him." Alex[/quote] So, would it be fair to say that Youngatheart is OK to stick a 1x15 on top of his 2x10 if Eleanor Powell's tapdancing sounds OK through the rig? Or not?