itu

By the way, older rechargeable NiMH battery capacity is only around 200 mAh, and a modern LiPo battery may have up to 600 mAh.

And what is the bass and the preamp? An ordinary 9 V battery capacity is around 500 mAh. A typical preamp consumes 0.3 - 1 mA. This gives 500 - 1500 hours of use. If the cable is constantly connected to your bass, the battery will be dead within 20 - 60 days. Let's make an educated guess: You play 3 hours every day. The battery will last 150 - 500 days i.e. 5 - 16 months. Does not sound very expensive, does it? Please disconnect the cable after playing.

That Kazimir looks like Batman's hit. It only lacks the text WHACK!

I've seen an article about impulse response bass (in noTreble, maybe?) but have not seen it for sale. Does it exist, have no idea.

...just like alusonic. Some aluminium neck manufacturers: Burke, Wandré, Travis Bean, Kramer, Hartke (by Vaccaro), EGC, Baguley, Bastin, Aluminati...

Pots just need a more powerful iron, like 60 W, and at least a wide tip shape to transfer the heat. Bourns makes the blend pot, type MN. It's available in 250 k and 500 k.

Once I tried to mix a bartolini J and a Status J. Nearly functional: the Status was a parallel humbucking and only half of the coil was in phase with the bartolini. Status sounded good in the bridge and bartolini in the neck, so the solution was to put a pickup selector switch. One on or the other but not both.

Well, there is a need for a power source, here it is a super capacitor. It could be recharged in few seconds, here the charging current is probably limited by the electronics. That could be the reason for such a long charge time, 1 minute. The basic idea of the MiSi pickup is functional: a basic magnet-coil pickup and a MEMS (MicroElectroMechanical System) acceleration sensor. Guessing/ If this is a two band system, the MEMS takes care of the low end, and the low wound coil handles the high end. \guessinG I had an idea of combining a piezo (hi) and a MEMS (lo), but haven't finalized it. I did the MEMS part a bit over 20 years ago. Real low end driver, down to DC. But piezos take quite some design time, their features change if any parameter (thickness, shape, diameter, glue...) is changed.

Right amount of basses is one more. I have fretted and fretless, and a double bass. Suits me. If you think that the custom Sandberg is your ultimate solution, consider: - string spacing - pickups + electronics - body shape and weight - neck profile - strings After these you should think about the woods and colours. I wish you have played Sandbergs before. A jump into total darkness may be complicated.

If the remover has to stay in place, butter works well, too.

...played by Darryl Jones. I had to check, as I did not recall Sting played any bass, but there was that Bourbon on double bass. The studio album is just fine but the double live 'Bring on the night' is really good! To me it's the best Sting stuff ever. There the Bourbon was played by Jones and Stig - sorry, too much Top Gear - Sting played 'I burn for you'. Double bass, again.

If your bass has two hi-Z pickups and any kinds of pots to use the pickups together (vol - vol, or blend - vol), there is no buffer and while using pots, you are affecting the response. Put a Noll Mixpot under the hood, and you have a buffered mixing.

If someone is able to tell about the response simply by speaker diameter, fine. I am using an alusonic 2 x 12" and very happy with it. 18 kg only.

Some pictures please, and we might be able to help you.

One issue in the pictures is that the fingers are not behind the frets. Soundwise it is better to get close to the fret than try to push the string and float somewhere in between frets. Changing to a fretless is also easier later on. Take your time, it will get better.

I got a bit tired playing with them. Preamp is a must and every detail in piezo's shape and size matters. I had a chance to work with an accelerator sensor company and used their custom units. I made functional bass pickup prototypes. But they go down to DC! Without HPF they are unusable and the highest reproducable frequency lies at around 500 Hz only. Because of this the sound is really thick. I was thinking they should be mixed with piezos for wide response. Some day when I get the ambition again...

@EBS_freak said it, my thoughts may be written slightly tongue in cheek. I still tried to stay on the technical side of the track. Like I said, if the piezo is located elsewhere than in the bridge, the function changes quite some. My understanding is that a piezo in the neck or in the headstock of the bass has very little to do with the actual sound reproduction. Those transducers can surely produce effects. History knows several trials, but they have been short lived. (Tongue in cheek ends.)

Most of the stuff is already answered here, and I'll ask the final question: why don't you mic your bass on a gig? With double bass it's common, but you do get an acoustic signal from your electric bass, too. Few details. The first and foremost issue is that the level of the signal is so low. In a quiet studio micing could work, but on stage, no chance. If you study acoustic g-word micing, you see there are many ways to enhance or reduce the response, like angle and placement of the mic. The mic would also be on the way if you want a good signal level and SNR from a not-so-acoustic instrument. I do not say it cannot be done. Many artists have had piezos built-in to their instruments (Manring, Zappa...), but I think it is still more of an effect than real sound. I do have excluded piezo bridges from this: if a piezo is built-in to the neck or elsewhere, I consider it an effect mic. Again: if the microphone capsule was built to a chamber in a bass body, it might give some sound out of it. I still consider an ordinary pickup is the thing here, and my choice in a bigger stage is a Countryman Type 85, post effects.

I know, my choice was the old GK 200MB. I think it was only 12 kg - and heaven sent! Worked very well with my Clevinger. Yes, my friend has an AER and it weighs quite a lot. But he uses a car.

How much is this? Looks neat.

An uncolored speaker, could you please tell us, what is the amp you are using? Most of the amps are everything but uncolored, and at least their eqs are not flat set @ 12 o'clock. AER is quite popular among double bassists.

So how about if you put the signal on top of the supply and to the same wire? Ground is the same after all. Three wires is enough for the two sided supply, the ground and the signal. INSTRUMENT (bass output -*- 9 volt in) --- CABLE --- (9 V supply -*- amp input) AMPLIFIER Put some capacitors in place of the stars (*) and you can make the signal ride on top of the supply voltage. This is common in big video systems. If you use a 4 pin XLR, you can get a stereo output, too. I think Alembic uses a 5 pin XLR and keeps all signals separated from each other.

OK, let's make a guess. You change the battery @ 0909. A battery lasts around 500 - 1 000 hours, or 100 - 200 gigs. If you play around 3 times more as during gigs, this is 25 - 50 gigs and rehearsals. This does not sound so bad for one year (except right now, #¤%/&%#! quarantine). If you have a DMM, you can also check the batteries at the same date - and make a decision whether you have played or not with a cable attached.