BASS LINE

"Sound Reinforcement Handbook" by Davis & Jones (aka the Yamaha book) and Loudspeaker Design Cookbook by Dickason will sort out at least 75% of what you need to know, and about 350% other stuff you don't know you need to know yet too 

SnailSpace wrote: One of the reasons I’ve ventured down this path (now questioning this choice ha!) was because of the lack of entry level information available! Probably due to the complexities of Sound System, but I’m surprised with the advent of internet & social media that some answers remain a mystery when put into a search engine!

The internet is a fabulous resource but the one catch is you have to know what questions to ask to get the information you desire which is a bit of a catch 22 situation when you don't know what you don't know. One of the things you will discover about the internet is that zeroing in on specific info requires very specific queries.. sometimes depending on spelling, grammar, or even the order of the words in the query, and with technical info it's best to first find out what the correct technical term is for it and search that instead of a slang or coloquial version of the term.

SnailSpace wrote:  I understand gaining the knowledge also comes with time, reading, researching and hands on learning which in the past would be in the form of being a box boy. So I suppose I’m trying to make the leap into sound system without having done the apprenticeship. But as a record collector who has had a home DJ/audio set up for over 37years I’m surprised just how much of a leap it is.

There is a lot of science and technology behind sound reproduction and reinforcement so there is plenty to learn if you want, but in general there is little risk to blindly experimenting as long as you follow some basics like don't short the speaker cables, that is also very instructive. You now have quite the collection of parts so if you have the room you should try a bunch of different combos to see what you like. Start with safe processor settings, low power levels.. only a few watts, and the most basic speaker setup... a 2-way with one 15 and HF horn, make it sound good and then add a sub to make it 3-way.  

To "short" means in this context to short-circuit, that is, don't connect the two conductors together when connected to an amplifier. 

Shorting speakers cables is possible and most likely when dealing with bare wires or 1/4" connectors... as the connector is inserted or removed it often momentarilly shorts + to -, but it can't happen at all with Speakon connectors so it is recommended you use only those and convert all the boxes you have to Speakon. These can also be safely  disconnected/connected with the amplifiers on but one of the best practices for sound systems is that the amplifiers be powered on last and off first. 

I’ve been looking at Amplifiers for my Lower Mids (x4 15” PV BW - 500w continuous/1000w program) or Bass (x4 15” Eminence 15LF - 600w continuous/1200w program)

I have a x1 Crown XLI3500

https://www.crownaudio.com/en/products/xli3500

(Kicking myself now because the person I bought it from had x2 but I only bought one at the time as I just didn’t have the money, regret it now as it was a bargain and in amazing condition)

I have a budget of upto £300 max so it will be a used buy.

Basically the advice I had when I started getting my amps was stick with QSC or Crown. Sound advice but the larger amps by QSC/Crown are pricey, I may drop on a bargain again and have got time to wait but I want to make sure I’m getting what I need as earlier in this post someone mentioned running my bass through bridged mono into x1 channel.

Alternate options I’ve seen are a “Behringer iNuke NU6000DSP Power Amplifier with DSP” at a good price which seems to have the capabilities but I’m just wondering what this built-in DSP is and its digital I think? Could I over ride the built in DSP? And should I avoid mixing digital with my other amps.

Carver PT-2400? But reading up people say the internal fans aren’t great. 

Shoukd I wait it out for QSC/Crown or are there alternate maker, thoughts?

Thanks.