nekomatic

Nice carpet work! Looks sealed, not ported? Do you remember if you did any modelling of the response?

Eddi Reader at the Stoller Hall in Manchester. Boo Hewerdine on guitar, John Douglas uku (I think!) and guitar, Alan Kelly accordion, Kevin McGuire db. Great show, included some Robert Burns, some Fairground Attraction (yes including that one) but brought something new to each of them, and some other stuff. Definite recommend.

moneysavingexpert says you may be able to get money back through a chargeback claim if you paid a company by debit card (or credit card) and they have gone bust.

The way to find out would be to model the response using software like WinISD. You need to know the internal volume of the cabinet and the length and area of the ports, plus the parameters of the driver you want to use which should in the manufacturer's datasheet. I'm not experienced enough to look at the output of the modelling and tell you how it will sound, but if someone like @Phil Starr has spare time they might be able to run it and give a quick opinion. The thing is, as @bremen says, the "600W" driver rating is only half the story, basically being how much power you can put in to the driver under standard measurement conditions before something melts. The other half of the story is how far the cone can move before something breaks, and the power it takes to cause that is dependent on the enclosure as well as the speaker because the air in the enclosure affects how the speaker cone moves. To get more volume out of the same size driver in the same enclosure you are going to need the cone to move further, and it might be that the "600W" driver will hit its excursion limit at the same or even lower volume compared to the "250W" driver. If the higher rated driver is less sensitive it might even take more power to reach a lower maximum volume.

I think nowadays it’s this 😉

Cool, was that a quartet lineup or just the duo? They’re in Manchester tonight and I contemplated going but I think it’s just Adam Neely and the drummer, and, well, I didn’t.

Unless the cabinet is internally divided into a separate airtight compartment for each speaker then this would effectively double the cabinet volume seen by the remaining speaker, wouldn’t it?

That’s a name I haven’t heard in a while - great to hear she’s still gigging.

Eddi Reader (dunno if she'll have a band or it's just her, but it's not the Fairground Attraction reunion afaik) at the Stoller Hall, 6th April. Also lots I plan to see in Manchester Jazz Festival in May, but the one I jumped straight on a ticket for is Small Print (presumably so named because it's a smaller version of The Printmakers) which is Norma Winstone, Nikki Iles, Mike Walker and Steve Watts, on the 24th. I'm not sure it's possible to describe how good I expect this to be.

There were three bass players, plus the guy in the house band, tonight. Three! Felt like I hardly got a look in.

As a firm believer that more things should be painted hot pink, let me wish you the best of success with your project.

Circular recessed cabinet handle as seen in the Basschat 112 design, unused, full spec here: https://www.bluearan.co.uk/index.php?id=ADH34062 I bought this for a cabinet project but found it wasn't quite suitable, so someone else might as well have it - free to collect from Stockport (or could arrange a handover in central Manchester) or will post it at cost.

In something of a contrast to the previous night, Joseph and the Amazing Technicolor Dreamcoat at Manchester Opera House, because a mate of mrs nekomatic's was playing French horn in the pit band and got us cheap (relatively) tickets. I affect not to be a fan of musicals but it was proper old-fashioned entertainment and everyone on stage was clearly very good at what they did and working very hard at it, so had to concede that I enjoyed it very much. Pit band was a 9-piece although three of those were keyboards, one Mat Elliot on bass who also had plenty to do all night and was clearly very good at it.

Espen Eriksen Trio with Andy Sheppard. I didn’t know the trio before, but was a big fan of Sheppard’s mainly via his work with Carla Bley and Steve Swallow. Bit worried after the first couple of tunes that it was all going to be a bit… nice, as in predictable and safe, but they started to stretch out a bit after that and ended up very good indeed, Lars Tormod Jenset on bass delivering his share of that.

Do you have a link to the circuit diagram? I searched for one and found this which shows what looks to be a thermistor as it’s labelled with ‘cold’ and ‘hot’ resistance values. Is that performing some sort of soft start function perhaps?