Bookshelf Speaker worklog

[PV Audio 5,000+ posts]

Blow Caps often?
Maybe I am just a math nut but I always run best fit equations and such to get the desired responses that I want. And it isn't uncommon for flattest response to tune in the high 30's. Just a my 2 cents.

But, and I know that you know this, flattest response /= ideal sound. To knock out that node in most bookshelf speakers around 100hz ish, it would make sense to tune in the 30s to bring it down, and regardless of how the graph looks, there will still be increased response in that area. They just can't drop low enough to reproduce those notes, so why not try to help out the midbass instead?

 

[Fast1one 10+ year member]

But, and I know that you know this, flattest response /= ideal sound. To knock out that node in most bookshelf speakers around 100hz ish, it would make sense to tune in the 30s to bring it down, and regardless of how the graph looks, there will still be increased response in that area. They just can't drop low enough to reproduce those notes, so why not try to help out the midbass instead?

I have concluded that it is simply different strokes for different folks //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Personally I don't have the money or space for a subwoofer system of my dreams (stereo bass, tapered horns in each corner, 2-300rms each //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif ) So I opted to just make a simple tower that can cover (almost) everything fairly well..

 

[BrianChia 10+ year member]

I have concluded that it is simply different strokes for different folks //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Personally I don't have the money or space for a subwoofer system of my dreams (stereo bass, tapered horns in each corner, 2-300rms each //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif ) So I opted to just make a simple tower that can cover (almost) everything fairly well..

2.0 FTW. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[joetama 5,000+ posts]

The Tama has spoken! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Hi...

I haven't been on here in a while... I was chilling in the sun in ARUBA! //content.invisioncic.com/y282845/emoticons/woot.gif.aaa6090e619a97b6090d16dd863c5a69.gif

 

[PV Audio 5,000+ posts]

I have concluded that it is simply different strokes for different folks //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Personally I don't have the money or space for a subwoofer system of my dreams (stereo bass, tapered horns in each corner, 2-300rms each //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif ) So I opted to just make a simple tower that can cover (almost) everything fairly well..

//content.invisioncic.com/y282845/emoticons/bowdown.gif.b85b23b82970bd22fb6b549c3392f016.gif Good man.

 

[Fast1one 10+ year member]

2.0 FTW. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Yes sir! //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

Hi...
I haven't been on here in a while... I was chilling in the sun in ARUBA! //content.invisioncic.com/y282845/emoticons/woot.gif.aaa6090e619a97b6090d16dd863c5a69.gif

Lucky bastard...

//content.invisioncic.com/y282845/emoticons/bowdown.gif.b85b23b82970bd22fb6b549c3392f016.gif Good man.

//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif
How are you going to finish the speakers jmanpc?

 

[joetama 5,000+ posts]

Yes sir! //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif
Lucky bastard...

//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

How are you going to finish the speakers jmanpc?

I know... I was rather nice there... //content.invisioncic.com/y282845/emoticons/woot.gif.aaa6090e619a97b6090d16dd863c5a69.gif

 

[jmanpc 5,000+ posts]

Yes sir! //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif
Lucky bastard...

//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

How are you going to finish the speakers jmanpc?

I'm going to finish them in glossy black. Right now, I'm waiting on the drivers before I do anything else with them. I'll post updates as they come along //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[JimJ 5,000+ posts]

Awww, widdle peeka boxes...so cute //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[BrianChia 10+ year member]

//content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif Unless you're using some cheap *** picofarad caps everywhere (which makes no sense at all for any speaker crossover lol), I don't see how you could be feeding enough into the filter to pop one.

On that note, here's a busted cap from a very nice Paradigm 3 way tower with integrated active subwoofer. Also had a blow tweeter. It was never turned up too loud either, according to the previous owner. Got them REAL cheap and it's a fairly easy fix. Dealer wanted about $200 to fix.

I just need to route a new faceplate for the replacement tweeters.

 

[joetama 5,000+ posts]

Wow...

Now that is something you don't see everyday...

 

[jmanpc 5,000+ posts]

So I ordered xovers last night. Turns out my friend's gonna hang onto his Oz comps. I just got some JBL passives attached to a terminal cup... prolly just something pulled from some old 2-ways. Xover point at 4000hz, -6db/oct. Should be nice.

Anyhow, I finally got around to putting the AA into the box, with 6" long 2" PVC port, which should make the tuning ~44hz.

Holy shit.

Just the one speaker in the box by itself sounds great. It definitely lacks top-end sparkle, but it is very clear, and the bass is accurate and tight. It plays confidently down into the mid 40s, but plays the high note from "Hypnotize" with some serious authority. Right now, I'm listening to "Windowlicker" by Aphex Twin, and it is loving it. It lacks low end, but that's where the 2 EHQS 8s come in //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Looking forward to having the other one finished, and getting the xovers and tweeters.

Pics when my parents get back with the camera.

 

[jmanpc 5,000+ posts]

I'm thinking about making stands for them that are about 1'-2' tall, because I won't have a bookshelf to put them on per se. Thoughts?

 

[Fast1one 10+ year member]

I'm thinking about making stands for them that are about 1'-2' tall, because I won't have a bookshelf to put them on per se. Thoughts?

Go for it //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif The price you pay at a store is a little ridiculous IMO....

 

[BrianChia 10+ year member]

1st order at 4000hz may be a little too high for the woofers but I guess there's only one way to find out. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif