Chienmortbb

[quote name='garry warrington' timestamp='1501002755' post='3341723'] The Tropical fish cap was meant to be 0.047 ,(perhaps it didnt get on with the SX pots. The tone sounded harsher and less defined, Sx basses are half decent for the money, and usually give a passable p bass tone. Would it be worth my while getting some CTS pots with a orange drop cap. [/quote]Don't waste your money. CTS pots are just pots,reasonable quality but nothing special. Go for Bourns or the bigger OMEG ones if you can get them. Orange drop caps are just orange coloured. No magic The mullard caps will be circa 40 years old and 20% tolerance. So the value could be anywhere between about 425K and 575K. The best think is to look on the other place where many people have SX basses and I am sure there are stories of successful upgrades.

I am not sure how I missed this thread but EVO? Oh and the guitar amp looks lovely, the Bass one? Can't say as it will not get past the profanity filter,

[quote name='RichardH' timestamp='1501152279' post='3342843'] I was going to ask about doing the crossover on one piece - I thought seperate might be easier to locate within the cab - especially as this is for Geoff's MiBass cab rather than the BC cab, so I don't know what clear space there is inside. I would reserve judgement on mine being neater until I have finished!! Waiting for some suitable silicone to be delivered at the moment.... [/quote]It will be easier to place in the cab and easier to trace through if you have a problem. BTW where did you but the inductors?

I made my crossover on a single piece of ply and think separate pieces are easier. Yours are both a bit tidier as I was in a real rush. As is to be expected I did have one problem with the crossover, a detached wire due to my rush to make the Bass Bash but it has been fine since I fixed it I just thought I would update you on my experience. Externally the cab still looks good despite being in and out of the boot twice a week. There are a few small dings but the Tuff cab has not been pierced. As they are small dings they just look like the texture of the cabinet. I often sit on the cab at rehersals and there is very little vibration through the top. I did a dep gig with Stevie's band recently and during sound check was asked to turn down. I was using my Ashdown MiBass 220. Like all those 200ish watt amps it outputs about 100 Watts into 8 ohms*. The idea behind the cab was to get better on stage dispersion and a one cab solution. It certainly does that. Whet is more pleasing is that the sound, out front seems to cut through with ease. I cannot see that with a more powerful amp ( still working on my 500 watter) I would need another cab although the rocker in me yearns for a stack.... So what are the pros and cons? Well as with everything, I would like it lighter. The SM212 has a ferrite magnet but is not unduly heavy. You could save a couple of kg by using a Kappalite 3012 but it would add £100 to the cost. Most other neo drivers will only save 0.5-1Kg. The Mk1 with no HF unit and no crossover would save money and weight but the sound would be different. How different is the sound? Maybe Phil and I can swap cabs for a while and we could see? The HF horn weighed about 1Kg and the crossover probably the same. Would I use 15mm poplar ply again? Yes it does the job and is lightweight. Tough enough for me and easy to work with. 12mm would require more care and bracing and I am not sure there are any real benefits for the diy constructor. I may well build a combo version next and (don't tell Stevie) but I might use electronic crossovers but I have to finish my amp first. *It uses the Icepower 50ASX2 module used by GK and many others.

[quote name='Count Bassy' timestamp='1499774865' post='3333489'] So where did "Class H" come from? And I agree with your other point. Class D is digital in that the output has two states, on or off. However there have been very long threads regarding this before, so best not open that particular can of worms again! [/quote]Class H is just the latest class to be defined. It is an improvement on Class G. Classes E and F are not useful for Audio Audio Classes are A,B, AB, D,G and H. The reason Class D amps switching amps but are not digital. Audio in the digital world is sampled and in Class D the audio is modulated. It is really more akin to a power modem.

Smoke machines often atomise an oil based liquid. It get everywhere. Almost as bad as cigarette tar.

[quote name='stingrayPete1977' timestamp='1499975982' post='3334970'] I don't think you can blame the technology for that though can you? [/quote]I don't blame the technology. I blame the band, they were more worried about their own monitor s sound than the audience. I have nothing against in ears per se. However for me an electric bass/electric guitar without an amp is like an acoustic without a sound box. That does not mean I need to blow the sound barrier. I am using 100 watts into my Basschat 1x12 and on my last dep job was asked to turn down, which of course I did.

[quote name='stingrayPete1977' timestamp='1499891941' post='3334408'] So if you had in ears you could do your perfect own mix in rehearsals then at the gigs you'd get a consistent perfect fold back. [/quote ][/quote] That works if you have a sound tech/person (sound engineer is an oxymoron). I saw (heard) a band recently that were self mixing. They used in-ears and must have spent 15-20 minutes getting the foldback correct. No one ever came out front. The sound sucked and the biggest culprit was the bass. They were using two really big JBL cabinets for PA and the bass drowned out everything.

Apart from the implied expletive it seems balanced to me. re-write it "You like A, I like B does not mean either is right or wrong."

I have used some on a worktop this weekend. Really impressed. However I have heard good reports about Crimson's Guitar Finishing Oil. I might try that soon.

Funny but it is a 130, has all the bits a trace would have and it is MOSFET? Trace amps (like the BLX130) were mosfet. I wonder if it is a clone of maybe a spinoff off a Trace?

[quote name='Sparky Mark' timestamp='1499202641' post='3329971'] I had a class D LM3 in my CMD121P and it sounded just as punchy as my class AB separate LM3. The sound is primarily down to the pre amp which was identical. Markbass developed its own 500w class D power amp and it is very full sounding. The 1000W power amp is based on the same design elements. [/quote]I suspect one of the other italian Class D companies designed it like Powersoft.

What did you end up getting?

Bill is right the power will be roughly similar (although a distorted signal will push more power than a clean one. The biggest issue is noise here. If your gain pot is at the start of the pre-amp, having it too low will mean amplifying noise later in the signal chain. A lot of bass amps are not designed with a low noise figure as the main design criteria so higher gain is usually better, My advice, have the Volume or master control lowish, set the gain for the sound you like then turn up the master/volume for what you need. Alternatively turn up the gain until it starts to distort then back it off a bit. Then turn up the master/volume to taste.

[quote name='kev b' timestamp='1499036735' post='3328789'] Its not only class D amps that play up, my band plays a couple of venues where there is a issue with the power supply. The ancient keyboards (4) use 9volt phone charger type power supplies and I use my 1970s HH solid state head for bass. At various points during the set my bass will sound horribly distorted but one keyboard in particular will fail altogether, just producing a clicking noise. We put this down to a voltage drop caused by the long extension leads and demand from the fryers and other equipment in the venue, the cure is not easy to find. I dont look forward to playing one of these gigs as our sound is always compromised, the place was rewired last year but we use the same setup elsewhere and never have a problem. [/quote]If the voltage goes down so does your headroom and distortion will start earlier. Incidentally I have two HH bass amps and no valve amp watt is equal to an HH watt (tin hat on).

[quote name='Count Bassy' timestamp='1498935694' post='3328142'] AFIK a power conditioner can't increase a low voltage. [/quote]True a waste of money if you ask me.

Duplicate post please ignore

Many class D amplifiers will have under voltage protection as the control chips do not behave reliably at very low voltages. Class A/B Amos will operate but not put out the full power and will distort early. If you had both, the voltage was too low ( that is way out of the 230V +\- 10% that the mains are guaranteed). Do you know the power of the generstor?

[quote name='mcnach' timestamp='1497988309' post='3321856'] The one thing this bag was not so good at is... the bottom: there is no padding at all!!! Very strange. Fortunately, I had some very tough and dense foam from work, from the packaging of some large piece of equipment, and it came very handy to make a nice supportive bottom layer: So with that at the bottom, the back of the amp is now protected too. I use some of the remainder foam to cut a frame to fill the gap when I only carry the amp inside. It makes a good space for accessories, so I'll probably take the power and speaker cables there, and use the side pockets for other things. It could have been better... but I'm not complaining. It'll do the job nicely and I trust this with my amp, something I could not say about the original bag, which I will use as a dust cover at home. [/quote]Where did you get the bag?

[quote name='Sparky Mark' timestamp='1498086168' post='3322506'] I understand that manufacturers need to control retail pricing but in this instance the UK customer is paying a massive premium because it seems of the extra hands the product is passing through without adding any value. [/quote]That is against the law and if you have proof that a manufacturer or distributor is trying to control retail prices you shaped report it to trading to the EU....oh funk.....

https://i.imgur.com/g7dEyJT.jpg Front panel dry fit. Wiring starts tomorrow. I cannot decide whether to keep the knob colours as they are here or go all back. I will try all black once so remember where so put the other black knobs. Charlie I do give you a credit on the rear panel, Sorry but I cannot get the image on the post from my phone. I will do it later when I get home.

Luke the latest drawings can be used for the MK1 or MK2. Just leave out the HF unit home and that is a MK1 on a different shape. I would suggest you use the big port though and don't stand in front of it. It is amazing how much air comes out of that port.

[quote name='geoffbyrne' timestamp='1496750612' post='3313591'] OK, I sat down on a stool in front of the cab with the grill removed & had a right good listen. The 'flutter' was coming from the piezo unit. I disconnected it & screwed it back on, but the sound was still there - coming *through* the slots in it - it's not a sealed unit!. I removed it leaving a 75mm diameter hole. No flutter. Any suggestions for a sealed replacement would be welcome, or, alternatively, the best way to seal up the hole that's left. G. [/quote]i am sure Stevie will comment later. But the tweeter from the original MK2 design was pretty good and not too expensive. From Stevie's post "The first HF unit we will be working with is the P. Audio PHT-407, available in the UK from Blue Aran for a very reasonable £13. Don’t be put off by the price; it’s a quality unit." I will let Stevie comment on crossover arrangements.

I got the finished Front panel From Michael at Modulus Amplification today. I am very pleased and now have no reason to prevaricate. Build restarts tomorrow. An apology to Passinwind, the model number should have read PW7B-500UK as the preamp is basically his design PW7B. The name Cand Heat? I live in Canford Heath near Poole. Having had a business before that used the Canford name (because that is where the business was) and being ferociously pursued by Canford Audio's Rottweilers (Trade Mark Lawyers), I thought two fingers up to them would not go amiss.

[quote name='TheGreek' timestamp='1496261847' post='3310079'] Snapped up an absolute bargain today - virtually stole it TBH - ridiculously low chancers' bid - didn't expect to win it - laughing my head off.... Not telling yet...photos and review when it arrives on Tuesday (hopefully). [/quote]Mick you are a tease. Any news one the Elf?