Bill Fitzmaurice

The first SS amps were quite horrid, especially where noise is concerned.

[quote name='JTUK' timestamp='1461500232' post='3035143'] Also, pubs are too much work for the money anyway, IMO, so there is a limit to what you want to rig and another mouth to feed. If you have a load in and out or around an hour each, including set-up/break-down, of course, you will not be able to charge for it. Diminishing returns etc and I don't think a small P.A/gig needs mixing beyond the band anyway.. If you can't hear someone in the band...there is something pretty wrong IMO, and for pubs, it is that simple and basic. [/quote]Common arguments, but IMO they don't hold water. If you're taking pub gigs to get rich you should consider a different profession. As in any line of work entry level positions are a means to an end, not the end itself. If you want to get better gigs then you have to sound better, and if you want to sound better that means doing whatever you can to differentiate your band from the rest. That means good PA, and someone to run it. Even if he's not George Martin he will still give you something that no one on the stage can: a set of ears in the audience.

[quote name='JTUK' timestamp='1461252136' post='3032924'] Equal share of what tho? Pub money will be from £50... no decent engr is going to work for that... [/quote]One could make the argument that no decent musician would either. Engineers are just like any other artist. You do it because you love it. If you do manage a living at it all the better.

[quote name='JTUK' timestamp='1461233460' post='3032644'] A decent engr isn't going to work for pub money. So if you get anyone to do it, you'll have to educate and teach him. [/quote]For many years the bands I was in had an engineer, taught by me, who received an equal share.

[quote name='EBS_freak' timestamp='1383566266' post='2265856'] I stand by what the rest of the thread is hinting towards, the Bose will not cut it with a loud band... and having been there, you won't convince me any other way! [/quote]+1. A friend of mine is a keyboard/vocal single act who has an L1. It's fine for what he does in the small clubs he works in. When he sits in with my band he still uses the L1, but only for his keyboards as a backline rig. Just for the heck of it he once tried to run his vocals through it, rather than my PA. It really was like bringing a knife to a gunfight, and a small pocket knife at that.

[quote name='hubrad' timestamp='1460710459' post='3028004'] Still, with say 2 x 250W speakers in series, you'd not hit the front one with 500W, would you? [/quote]You would not. Half the voltage would be dropped in each, therefore half the power would be dropped in each. [quote]And with the same in parallel they'd get an equal share of the power? (again, simplistic approach..) [/quote]Yes, because half the current would be dropped in each.

[quote name='Ant' timestamp='1460666595' post='3027798'] thanks guys! and would i just simply cut it out and stick it (staple or adhesive i imagine?) to the inside walls and back? [/quote]+1.

[quote name='taunton-hobbit' timestamp='1460661201' post='3027742'] If you can get hold of some old-fashioned carpet felt, you can't go wrong..... [/quote]That will do, as will 5mm polyester upholstery batting or 5mm open cell foam. It will tighten the mids quite a bit by eliminating internal reflections.

Those are 8 ohm Eminence Beta 12s, with a thermal rating of 250w. In that small sealed cab their real world power handling before farting out is more like 125w each, and being sealed there's not going to be much happening below 70Hz. It really should be lined with damping material as well. [quote]Power handling is double that of one speaker, as a series pair can only handle the single amount whereas a parallel pair will split it between them.[/quote]You're confusing what happens with power versus what happens with voltage. On that matter with parallel connections each driver sees the same voltage, with series the voltage is split amongst each driver.

We are visually oriented creatures, so looks are paramount, with anything and everything. Years ago when I was in the ski business Nordica introduced a line of ski boots that fit great, but were butt ugly, so even the very few who were convinced to try them on didn't buy them. The following year the exact same boots were reintroduced with a different name, and appealing graphics. It became the #1 best seller, not just within the Nordica line, but of every line.

[quote name='Kevin Dean' timestamp='1460370381' post='3024977'] I was wandering if it was worth using both my Barefaced Super compacts , one behind me & the other out front under the vocal PA ? [/quote]That would result in phase cancellation issues. Low frequency sources should seldom be split. The issue here is why a vocal only PA? Your stage rig should drive the stage, the PA should drive the room. That's the only method by which you can get a result that's good for the audience out front while remaining comfortable for the band on stage.

It depends on the room. Most rooms are very 'wet' in the lows and mids, so reverb would only make things worse. OTOH in a very dry room, like a recording studio, some reverb might be in order. But as one usually adds studio effects in mix-down you still wouldn't want a reverb amp. However, back in the '60s many studio players did use guitar amps with reverb, most notably Carol Kaye. It's most noticeable on the tracks she did for Phil Spector, but you can hear it on Beach Boys tracks as well.

[quote name='Fonkbass' timestamp='1459705603' post='3018786'] i would go for a no tweeter build if the Beyma's give me enough high end.. [/quote]It's not about high end, it's about dispersion. No matter what the on-axis sensitivity no twelve is going to work well off-axis above 2kHz. The BGH25 is rare in that it can be used to 2kHz, so there's no hole in the mids.

The plans should give you a list of a few appropriate drivers, and a range of T/S specs so that you can compare other drivers as well. 'Should', although I have no idea whether they do.

[quote name='Passinwind' timestamp='1459012016' post='3012868'] I should reiterate that "Passinwind Electronics" is still just a vanity name for my hobby builds, not an actual commercial entity at this time. [/quote]Good thing, one would not want bass gear to have a name which implies that it will fart out.

[quote name='Kevin Dean' timestamp='1458987698' post='3012591'] I'm sure my cab became louder ? [/quote]Probably not, at least not by an audible amount. Break in isn't that dramatic.

http://www.eminence.com/2011/06/speaker-break-in/

[quote name='Dan Dare' timestamp='1458920132' post='3012140'] Could it explain why I sometimes find that I don't like the sound of my rig on stage, but that if I go for a walk (courtesy of the wireless) whilst playing, it sounds fine in the room/mix whilst the sound I like on stage doesn't work in the room? [/quote]That's probably more related to boundary reflection sourced cancellations that can occur close to the speaker but disappear as you move further away. I always set my tone while standing on the dance floor. If it sounds good on stage as well fine, but if not I just live with it.

[quote name='Dan Dare' timestamp='1458920718' post='3012148'] True Bill, but as a working assumption, the excursion capabilities of a lot drivers are much of a muchness until you get into the realms of the most expensive [/quote]That assumption is also without foundation. While it's true that most manufacturers don't use premium components there's still lot of variance in what can be found from the usual suspects.

[quote name='Mykesbass' timestamp='1458897359' post='3011878'] Interesting point - the room was well insulated - could that have exaggerated the mids? [/quote]If you mean the room was well damped with absorbent material that would reduce the mids and highs. Damping becomes less effective as frequency goes down and wavelengths become longer. However, while the actual level of highs and mids are reduced with damping, they'll sound more prominent, because you're hearing more of the direct sound from the speaker and fewer reflections, which smear the tone.

[quote name='JuliusGroove' timestamp='1458847231' post='3011580'] The reason I considered adding a 15" is because I assume it will bring a heavier bottom end to my tone.. [/quote]That's a logical assumption, but also an invalid one. The size of the driver has little to no bearing on low frequency response. [quote]2x10 has just about the same surface area as 1x15 and will move the same amount of air.[/quote]The same applies. Surface area has little bearing on the amount of air moved. That's determined by driver displacement, area multiplied by excursion. [quote]Is it advised to keep the brand all the same or would it all work just as well combining gear?[/quote]The brand matters less than the drivers and cab configuration. Keeping them identical insures that you don't have phase interactions that can result in wonky tone, and that neither cab will be the weaker link in the chain.

A horizontal cab would have better vertical dispersion, but aside from a player standing quite close to it there's nothing to be gained, while all that's required to hear it well is to lift it and/or tilt it back. Besides, who are you playing to, yourself or the audience?

[quote name='AndrewJordan' timestamp='1458766285' post='3010750']. From that perspective, of the commonly available formats the 10” equipped cabs probably give us the best chance of hearing most of what the audience is hearing from the cab. [/quote]Only if they're placed vertically, and very few are. A 1x15 will have wider dispersion than a horizontal 2x10.

There is no 'typical sound' based on driver size alone. This subject is beating a long dead horse.

[quote name='Truckstop' timestamp='1458551178' post='3008400'] I'd guess Bass 2 has more presence in certain frequencies which made it 'sound' louder than bass 1. [/quote]+1. All the engineer has to go by is a meter or LED that shows a voltage input. It doesn't show the frequency content that makes up said voltage. Why that matters can be seen in an equal loudness chart.