Phil Starr

oops double post

Yeah I'm not knocking the designs at all. I'm just interested in what other people are doing within a fairly tight envelope. I also thought it might be interesting to Teebs to know what he would be trading for what I expect would be a superior sound. He's intending using this with a low powered amp so knowing that option would be a lot quieter than his hifi would be important. My design was to work with a 10/20w amp so sensitivity was important.

You can see how they do it, Sensitivity is 86db/w for two drivers. That's fairly low for a hifi cab and very low for a bass cab. Those drivers will have heavy stiff cones, great for bass and I'd expect that they will sound good, just not loud. Most hifi cabs and studio monitors would go as loud and probably be cheaper, and available used if you wanted a cheaper route. Just for comparison when I designed the 1x6 I decided to go for high efficiency and to trade off the low frequencies so my baby does just under 93db/w and you'd need 50W with the GR speaker to match mine at 10W. That's just the iron law, it would be simple for someone else to design a medium sensitivity speaker of similar size with better bass than mine but not as good as I imagine the GR bass is.

So this is the output at 10W. You've got just over 102db. -3db is below 80Hz so you are getting a fairly flat response with all the second harmonic for bottom E and upwards which gives it a fairly rich sound for a tiny speaker. The speaker itself is rated 100w thermal so you can push it way harder if you use a 'proper' amp It would work well with something like the TC BAM but even at 10W it'll be a decent practice volume. I can send you dimensions if you decide to build it but it's 10l so about the size of a petrol can. It also goes up to 7khz so gives a nice clear sound, I've also tried it as a 'bright box' on top of a 12 and it sounded great both with and without a crossover. My next step when covid abates is to try it at an open mic. It'll never work with drums but maybe with acoustic guitar and a cahon and amplified voice it should be good. It's fun to play with too. Fane : Fane Sovereign 6-100 :: £37.09 (bluearan.co.uk)

OK hopefully this should be a recording from yesterday through my 1x6 using the Peavey Minimax as shown below. the amp was set flat but I couldn't tell you what the settings on the active bass were. I'd hidden the speaker between two bigger cabs and the person playing had no idea at first that it was a 1x6. Bass demo Fane 6-100.WAV

You might find this interesting, it uses the same driver but the cab remains untuned my design has a little more bottom end Pimp my practice amp! - YouTube

Here you go A House Jam Combo - Build Diaries - Basschat Interesting timing, I took it to the South West Bass bash yesterday where it created a bit of a minor stir. I hid it amongst some bigger cabs and got a couple of people to try it. I also recorded it and will put up the recording when I get some time this week.

I think its fair to say @wrinkleygitand crumble have a very special relationship

Well done, there's nothing like something you've done yourself. Some pictures would be lovely though

Anyone know what time we can get in?

that's great, Stevie isn't coming and I'm waiting for parts to make mine tweetered so it'd be great to have one for the shootout. Really happy about the video too. There's quite a few people have viewed the other one over the years

I'd love to see and hear it. It might be difficult to hide under the table for a blind test though It would be really great if you can bring it along.

Sorry to hear that, I was going to chase you about half finished projects Hope the family aren't too bad and will all be on the mend soon.

Perfect, see you tomorrow

I can't remember which BC112 version you have, if it is a tweetered version and you have space it would be good if you could bring both and the TC would be great anyway. I'll bring my Zoom Recorder but the room acoustics aren't great as we know. It might be nice to have a couple of photo's but I'm not going to be expecting it to be very formal so i'm not sure a video would work.

I'd like to do another cab shootout in the side room but i've left it late to organise, It would be great to do a shootout of 12's preferably with tweeters so if you have anything at home fitting that description it would be great to bring it along so we can compare as many brands as possible. It would be nice to gather as many self builds as possible too and I'm hoping to be able to run people through winISD if anyone is interested and to offer any help on self building I can.

Brilliant, we will be doing something in the side room with home built cabs it would be great if you could join us there tomorrow with your two cabs.

Thanks for this Chris, what a huge amount of work and thanks so much for sharing. It's a wonderful resource.

I was hoping for something from this century but I'm no better. Humble Pie Rockin' the Fillmore Humble Pie - Performance: Rockin' the Fillmore (full album) (VINYL) - YouTube Doors Absolutely Live Who Do You Love (Live) - YouTube Benny Goodman Carnegie Hall 1938 Sing Sing Sing - Carnegie Hall 1938 - YouTube That last has a claim to be the first ever concert of popular music, depends how you define concert of course but if so it was good to kick it all off with a good one. Love the drums.

Welcome to Basschat there are a number of designs we've shared on here, the 110Tin the thread above Richard linked you to and there is also a 12" cab and a 112T. The cab above would also work without a tweeter and crossover and you could also add those later if you preferred. The cab will also work with a range of other drivers and if any tweaks are needed we can do them for you.

thanks for posting this @TheGreek we don't have many levers to pull so it might be interesting to hear what they are.

In the F112you have one of the best bass speakers around. We've done shootouts of 12's including one of BC's favourite contenders and it's still the standard by which we'd judge other cabs. I don't think anyone is being funny about your cab, objectively it is one of the best cabs around. There are advantages of having multiple drivers but PJB have sacrificed at least one by putting them side by side. I suspect they are just meeting demand for a bigger version from people who like the sound of their 7's, nothing wrong with that of course. If you want a more coloured sound or just have an itch you need to scratch then I'd try before you buy.

Are you just speculating about this or thinking of a purchase? If you fancy one of these cabs then they are different beasts all together. The Fearless is really a frfr speaker with great drivers and a decent crossover. It'll give you a really honest sound up to significantly High levels. The PJB is an unusual design which makes little sense in purely theoretical terms (why 7's, why put them side by side) but PJB make well loved speakers so just because they are quirky it doesn't mean they sound bad. The only way to find out is to try them. As you've pointed out cone area is a factor but only one. If you want some discussion of the design implications of multiple small drivers then that is a different issue

Just a quick update. My band did a proper pub gig! The First in nearly two years. @stevie was kind enough to come along, so we had to give the 110T a run out. In the second set we swapped to try his new super speaker. So the pub was atypical British pub not ideal for live music, originally two bars knocked into a single space. U shaped with is jammed into a tight space in the corner. There were maybe 50 people there and it wasn't rammed so a decent size but not huge. We had no PA support for the bass. For practical reasons the bass cab was jammed into the corner behind the drumkit and out of reach. Soundcheck was minimal, about 90secs. Not ideal and I was mixing so just a matter of setting levels. Far too much bass because of the corner position so I cut that on the bass and just managed to reach across and trim the bass eq back and boost the mids before having to set up the drummer's in ears. He'd forgotten the batteries, not downloaded the app and used my in ears. By this time we were late so just got on with the First set. Said drummer is lovely man 30 years younger than me and well built so he is loud but I had turned the bass down so there was plenty of volume from this tiny cab. We aren't the absolutely loudest band out there but Stevie who arrived to hear the end of the First set said he was surprised how loud we were. That volume is set by the drummer of course. The bass sound where I was seemed ok. It was dominated by resonances from the corner position and was abit woolly but the horn was doing it's job well and I was getting plenty of detail. Out front Stevie reported that the balance was fine but the bass sound could have been less bass dominated and more mid forward. So conclusions? Well if 50-100people is a medium sized gig then this little speaker will be enough indoors. Sitting on the floor with the speaker backed against the wall you'll be trimming back the bass. For me it worked really well as a monitor in a difficult space. The dispersion characteristics of the horn made my job as a bassist easy. The big plus for me is that I can say for certain that even with it's diminutive size and modest power handling it was really happy matching a very solid drummer. Back at the gig second set and Stevie's new 'super speaker' 🔊 . Well that's his story, but it was super.

Not if it is disconnected I'd check the crossover is disconnected too. often it's just a high pass filter with only a couple of components to protect the tweeter but it's possible there is something filtering out the the high frequencies from the 10's. If all your horn is doing is blocking a hole it's probably best to just run a connection from the sockets to the speakers bypassing everything else. Though if you've been using it happily for years it's probably fine