Chienmortbb

I assume that as they also make the drivers, they know the variations in specifications. Taking the that knowledge allows you to protect the drivers, limiting them to the minimum specs. You might also have some sort of dynamic impedance measurement to check the actual voice coil temperature, avoiding the worst effects of power or thermal compression.

I think this is a bit of manufacturer's marketing speak. All reputable Class D amps have several protection features built in and if you add DSP you can add more to suit the drivers. No manufacturer is going to use an amp that could really overpower a driver, and as far as I know, it is amp failure that powered speakers suffer from mostly*. * They may have improved, but the original Mackie Thump speakers, as well as many others, used a chip based Class D amp that they advertised as well over 1000 watts. Add the Thump name and no DSP and these little 2-300watts chip amps fried like eggs on a black car in the midday sun. Behringer also used these chip amps but rated them much more modestly.

To give it its full name. Spa Francorchamps, is being saved for the twin 18" cab. 🤣

Just a though, would smaller braces, at an angle, to brace the sides, top, bottom to each other.

I think this shows how they value you Daryl. Hang in there.

You can have first refusal on my Faital Pro 12PR320. Have sent a pm

Now I remember you. 😂

I think they will help, especially the inner chamfer. However of all the black arts in cabinet design, flared ports is the darkest. Whether there would be much improvement in copying say a precision ports design I don’t know. While flare reduce port noise, this really masks the port’s limitations caused by its small diameter. Of course I could be talking complete tosh.

I am sure others would speak either more authoritative voices but I don’t think wadding will help with low resonances.

Yes, I had the same experience.

VAT is a sales tax and in Europe/UK it is around 20%. It is some while since I was last in the USA but then, individual states levied their own sales tax. Annoyingly, the tickets price was without tax so you got a shock at the checkout. The last time I visited Sales tax was around 5-7%. That would have either been Nevada or Louisiana. 20 years ago. Taxes are higher in the UK than then USA but we generally have better public services. In Scandinavia, where taxes are higher, they have even better public services. Sadly taxation does not subsidise amplifier repairs.

Yes, There were a lot of good points to the Subway, the voicing control and deep switch were great. However neither worked that well for me in a band setting. The EQ was nice but I tend to run flat adding any colouring via my Zoom Pedals. I decided that I needed a better PA so sold it on. It was very well built, a tad utilitarian in its design but if I wanted to go pedaless would have probably been a keeper.

I have only just noticed this, it was the original grille from the After 8 Combo. It now has a new grille that I will photograph later. Bought from SGS Metals on EBay. I will also link to that later. SGS will cut to size.

One of the things I learnt a long time ago is that you can have too much of a good thing. Like many other things in life you should not really hear the sub, any more than you can hear the LF driver or tweeter in the tops. Turn it up until you can just hear it then just back it of a little. The main thing with this Citronic Sub is it’s lightweight, small, well made and does what it is designed for. Even with a buggered left shoulder it is an easy one hand lift.

While in a perfect environment the “good” PA sounds better, would it have sounded better in that Pub? l alike you, I am not expecting the performance of a wall designed and powerful sub with a good set of tops but plan to use it to just fill that little hole at the bottom end, to help the Whatfedales, which I must say are seriously underrated speakers.

One of the things that annoys me, apart from my terrible bass playing, is speaker manufacturers specs. We have heard many times how the maximum SPl is often inflated by 6dB but many well respected brands will quote, as said above, their frequency responses at -6dB, indeed some quote is at -10dB. Some, RCF for example, do not even quote the limits. Wharfedale Pro quote their speakers at both -3dB and -10dB so you can compare. It is likely that if no limits are specified it is -10dB. So a Top that is quoted at say 65Hz as its lower frequency limit may well be -10dB down, a huge amount. By crossing over at say 100Hz, you ensure that the Tops can handle the parts of the spectrum that they were really designed for, the section where they. Really have a flat response.

I would not do that, let the PA tops do what they are designed for and cut off as though it was a normal sub. The important thing is to be able to invert the sub output to match the tops. The Thomann DSP crossover allows this. Of course it also allows you to experiment.

I would usually set the crossover frequency to 100 with a standard sub. It’s a good starting point. As far as the Thomann crossover does, I have the one with the power amps in but the software is the same. It looks a bit old fashioned, think Win 3 meets Win 95 but it is clear and easy to use.

Sadly I have buggerd my shoulder so the planned recycling project is on hold although I will be bringing a few cables to sell.

There will be some LFSys cabs there and no doubt there will be others.

That makes a statement!

To me, and it is my opinion only, the scarcity of Rolls products in the UK, price and the fact that it needs an external PSU, would rule this out for me , especially as it is many times more expensive.

Wharfedale Pro T-Sub AX12 21Kgs or 46lbs. They are made to match their Typhon 8AXF which has a similar spec to your QSCs.

It is separate subs that cause power alleys.