itu

Thank you @Hellzero There are few fully active, but a complete list might be good. John East & EMG BTS. bartolini has only AG2BP & MPB1 that I know of and have two channels. Kubicki, WAL, Zon?

@jrixn1 answered this, but once more. If the preamp module was active from start to beginning (vol, blend, bass, treble...), the bass would be muted without an energy source (battery). I am pretty sure that your bass has only active tone control, so vol and blend are passive (high impedance), that is simple potentiometers without electronic buffers. Active tone equals amplification of the signal, as the tone shaping would otherwise mean only reduction of certain frequencies. Active tone can amplify AND attenuate the signal. This is why preamps need an energy source (usually a 9 V battery). Passive tone can only reduce the signal level. If the bass has a true active preamp (practically a mixer), it should cover all adjustments: blend, vol, tone controls. These are somewhat rare, but there are few from EMG, and John East.

Now the discussion is about a bass that has a bolt-on neck. If the neck is good, the body only has to be stable. That's it. Probably the paint has as much to do with the sound as the body. @ped had the meaningful comment about the weight. My choice would be the lighter one. But that's me. I just don't happen to like bodies with too much fat.

If you have a DMM, put the wires to the 1st coil & hit it with a screwdriver. If the voltage goes up, the coil is in phase.

No no sir, this is something else. Pics do not represent the feel.

Well, I can say that Stax makes fine, or better, somewhat expensive headphones, but they are different. I had a transistor amp for them, and the sound was close to decent. I changed to a tube/valve amp and now the sound simply shines. I can not recommend them wholeheartedly, as the original owner practically hated them. I have tried AKG K240 and they just sound bad, although that pair is somewhat common. Any of those rap-star brands have been plain lousy, too. I have tried to be as objective as possible, but this area is just so personal. OK: DT770 80 ohms. Decent price, decent sound.

I did an investment to my playing. I bought my dream neck, that has 5 strings and that magical 19 mm string spacing. It takes time to master the fretboard but the feel is at home. At last. I can publicly thank this gentleman, @graham1945 , who passed this black beauty to me. Her official name is Modulus Graphite Genesis 5, born 1999.

40 = 4.0" width and DC = dual coil. Just in case someone is interested in this data.

EMG width is related to those type numbers: 35 = 3.5", 40 = 4.0", and 45 equals...

This question is just like asking, what is the best bicycle saddle. Those who have ridden a lot, do understand this point. No. Not a single one. This is so personal, so go to a store and try as many as possible. Choose the pair that feels and sounds most suitable for you. Remeber to use the music, the song that you know very well. I like Stax, but your preference is certainly different.

No sir, I just added a material option. As your system is FDM, ABS is certainly fine.

If ABS is soft, use some PA with 40 - 60 % GF and it certainly will not bend. I used to be in a company that produced plastic things out of PA with lots of GF. Those ones with high fiber content tend to sound like glass. Of course you can consider some wave, or box like shape to the plate and make it far more tough to bend. Italian alusonic produces basses with (partial) aluminum body.

Someone has used an XLR connector between the amp anf the cab, or an output to DI-box, or a parallel output.

This is very easy. If your pedal needs 1200 mA (1.2 A), 500 mA is not enough. Far from it.

Take a look at the wires. One wire goes to the upper element. Then another goes downwards to the lower element. The third wire goes back to the amp. This is called series. You sum the ohms together (8 + 8 = 16 ohms). Very easy. Now, the speaker can handle up to 300 + 300 watts. So you have two similar speakers, but one amp. Your amp probably has two 8 ohm outputs. When two sixteen ohm speakers (the complete boxes with elements inside) are put to the single output (with two parallel sockets), they are parallel from the amp point of view. So the amp sees one 8 ohm impedance (1/(1/16 + 1/16) = 1/(2/16) = 16/2 = 8 ohms) and you can push up to 4 x 300 watts of power to the system. Enough? Clear? It is quite common, that a transistor based power amp is not so accurate with impedances, especially big ones (>4 ohms). Most of them do not even need the cab. Valve/tube power amps tend to like some load in their outputs, so it is better to have a 5 inch nail in the output than nothing at all. These are just basics, and there are many exceptions, so always keep a load in your amp's output, if you even think about connecting the unit to the 230 volt line. And use quality cables.