stevie

That's not a bad idea, although it would have to be a half as most of us have a long drive home.

What a great feature set on that amp. I particularly like the adjustable highpass filter, which I don't think anyone else does. My current favourite amp is one of @BassAdder60's cast-offs, the Trace Elliot TE1200. If the Mesa is better than that, it must be amazing.

I bought one of those as a backup because the price was just ridiculous. It works fine, except that you can't use it for rebates because the depth setting doesn't lock properly. It's fine for trimming and cutting holes. And, as you say, it's much easier to use that a full-size router.

It's always heartening to see Basschatters rolling their own. It's surprising how easy it can be to show many commercial boxes a clean pair of heels. Nice job.

Excellent.

Nice, very helpful drawings, but..... - the dimensions are miniscule and really difficult to read, - changing the 274mm dimension to 276mm wouldn't alter the design but would greatly simplify cutting.

I'm looking forward to the SW Bash already. You'd be very welcome to give the Monaco a good test, @MichaelDean.

Punchier than the Ashdown RM800?

Just got to say - open-air busking in Edinburgh in the summer is my idea of heaven.😀

This thread is worth a browse:

My problem with plastic cabs is that, while they sound OK with full-range music, when you only have bass going throught them, they sound like you're playing in a bucket. I'd expect the effect to be much less evident with a smaller cab like this one. I strongly suspect that the dip in the FR at 1k5 is a cabinet artefact, which will disappear off axis. So, I wouldn't worry too much about correcting it.

I thought it probably had. No worries. It was good of you to make the offer.

pm'd (a week ago). Aherrrm.

This looks very interesting. I'll definitely be watching it this evening.

I'll let Bill comment on this. 😁

It could be 3 ohms impedance but it's also possible that it's 8 and that part of the number has rubbed off.

Compare with this. What do you think? UprightBass.mp3

In response to @Paddy Morris's question, there are a surprising number of upright bass players using LFSys cabs. Some of them are on Basschat, although none is a prolific poster, and might chime in if they catch this thread. You'll find some comments from a couple of DB players in the Events section of Basschat (South East Bass Bash and Big Fat South-West Bass Bash). Although LFSys cabs were designed specifically for bass guitar, I've discovered that they work very well with double bass, and DB players who have tried them have been enthusiastic. I agree that DB isn't easy to amplify. It's more critical than bass guitar, in my opinion, because not only is the frequency range wider (DB generates frequencies up to 9kHz) but the harmonic content is more complex. The amplification system also needs to be accurate because you have a ready reference for the original sound. There are several reasons why LFSys cabs work with DB. First, they all use a high-end compression driver and horn to reproduce the mid and high frequencies that are critical to reproducing the double bass accurately. This arrangement also means that the sound from the cab remains consistent no matter where you are listening - there is no off-axis midrange suckout to colour your sound. The cabs have been designed to be transparent, with a frequency response tailored to be flat - so there are no response peaks to induce feedback and the sound remains even as you move up and down the neck. The other factor that helps with DB is that the low end response is shaped to prevent boominess or 'bloom'. It extends low but doesn't try to impress by fattening up your sound. It stays tight, controlled and natural - even at loud volumes. All the upright bass players I have sold cabs to have chosen the Monza, which goes louder than your average DB player will ever need and has the benefit of being lightweight. To @Pirellithecat's question, the Monaco and Monza sound the same in terms of tonality, bass extension and overall performance. The difference between the two is in sensitivity and maximum SPL, which is what you'd expect from the difference in size. @Chienmortbb has already mentioned this. Despite its size, the Monza will handle bass duties for most bands playing pubs and clubs. If you're not concerned about the extra weight and want a one-cab solution, the Monaco offers extra headroom.

I'd be wary of replacing an 8-ohm driver with a 4-ohm one. It will change the crossover frequency and you could end up with a 4-ohm cab. You also run the risk of dragging the impedance below 4 ohms and killing your amp. There are too many unknowns here. An original replacement driver shouldn't be expensive - if you can find one.

It's not part of Sica's standard product range. I did a reverse Google Image search and came up with nothing. It looks very much like a cheap Chinese car audio chassis. It doesn't look like a neodymium driver, by the way. @Bill Fitzmaurice might be able to suggest something, but it's difficult to do so without knowing how the system has been designed. I'd expect this to be a midrange driver with a higher efficiency than either the Sica or B&C drivers the OP mentioned. Perhaps try phoning Eich or contacting one of their UK dealers.

I'll be happy to answer some of these questions in detail when I have some time later this week.

There are two camps on this issue. The first sees the bass as an electric guitar, where the speaker is responsible in part for the electric guitar's sound. The second believes that the bass guitar has more in common with the double bass, which needs an accurate, uncoloured reproduction system when amplified.

It's good to hear that the Basschat DIY design is still spanking the bottoms of much more expensive designs. This sounds like the beginnings of a regular event. If so, I'll try and get up there to take part next year.