Speaker Components

Titán 818

invalid@example.com (Martin) — Sat, 16 Dec 2023 19:28:55 +0000

I was waiting to buy the 1299 or tian 818 when they are in stock but haven’t seen anything in stock for a long time.
I have emailed DIY and had no response. I want to buy the Titan 818 kit or all the parts separately. I’ve found the Compression driver and mid. I would like the horns and 18” driver if anyone knows where and which model to buy. I have a 3 amp setup so crossovers are not important. Thanks in advance.

Why does the magnum 12 sound so good?

invalid@example.com (Mark Bushinski) — Fri, 22 Oct 2021 15:33:56 +0000

So I've only had the magnum 12 for a couple of weeks but I am really impressed. I've got it in a 60liter box with a 20hz passive radiator tuning.

I've been running a thread on diyaudio comparing 12" subwoofers and the magnum is such a different beast.

I mainly listen for a separation of drums and bass guitar in the 50hz-100hz range and the magnum does this right.

So i'm wondering if we can learn from the t/s parameters of this driver as to why it performs so well.

Like is it the low LE?...

Why does the magnum 12 sound so good?

hulkssup plement.com/tranquil-leaf-c bd-canada/

invalid@example.com (cdeqas) — Thu, 21 Oct 2021 09:56:17 +0000

forestall the production of fa ts cells so you will benefit an effective and lean frame

Magnum-15 (Titan/15” MBM) discrepancy

invalid@example.com (Brinkman) — Sat, 01 Aug 2020 19:53:03 +0000

Hi Matt,

Over at AVSForum you provided the following T/S parameters for the Magnum-15 woofer:
Sd = 881 cm^2
f(s)= 35.64 Hz
R(e)= 3.93 Ohms
Q(ms)= 6.474
Q(es)= 0.393
Q(ts)= 0.370
V(as)= 222.4 liters (7.854 cubic feet) L(e)= 1.33 mH
n(0)= 2.492 %
SPL= 96.12 1W/1m
USPL= 99.21dB
M(ms)= 98.7 grams
C(ms)= 0.202 mm/N
BL= 14.87
Xmax= 12mm
Pe= 600w

When I measured the pair I recently purchased, DATS displayed both as having a V(as) within a few liters of 100 and a higher Q(es) of...

Magnum-15 (Titan/15” MBM) discrepancy

DNA360 Specs (DE250?)

invalid@example.com (Burnsze15) — Thu, 23 Jul 2020 05:51:44 +0000

Does anyone still have the specs on the DNA-360? Is it very similar to the B&C DE250?

Im thinking of using them in a BFM design, however need the specs to ensure it will be compatible (1.2khz xover). The DE250 specs look good, not sure what the differences are.

Thanks

Thiele-Small parameters of Denovo Hexcore 7” woofers

invalid@example.com (Brinkman) — Wed, 29 Apr 2020 20:37:01 +0000

I just got the Helix dome MTM kit so the following is an average of the four woofers from that kit.

Re: 6.9 Ohms
Fs: 44 Hz
Qts: .44
Qes: .53
Qms: 2.68
Le: 1.0 mH
Mms: 19.5 g
Vas: 15.1 L

Hyperlite™ Coaxials

invalid@example.com (Erich H) — Fri, 06 Mar 2020 17:04:06 +0000

Hyperlite™ Coaxial Information
A joint project between Eminence and DIY Sound Group.

In 2014: A group project started to make some of the best coaxials you could get. Click here for the thread on the AVS forum. I worked with an overseas company to make some nice sounding 6" and 8" coaxials (Concentric-6 and 8) but they ended up...

Hyperlite™ Coaxials

Thiele-Small parameters of DIYSG 8” hemp woofers

invalid@example.com (Brinkman) — Thu, 02 Jan 2020 00:42:50 +0000

I have two of the 16 ohm woofers used in the 88-Special. I finally got around to measuring them using DATS. The following is an a average of the two samples, V(as) was measured using added mass method (31 grams)

R(e) 9.35
F(s) 66Hz
Q(ts) .45
Q(es) .48
Q(ms) 8
L(e) 1.65mH
M(ms) 18.25g
V(as) 22.5l
SPL (@2.83V) 92.5

Seos Shipping Possibility...:-/

invalid@example.com (Swany) — Mon, 19 Sep 2016 17:14:21 +0000

Hi i am looking for an possibility to buy some Seos Waveguides and ship them to germany, cause we ve got none here! :-D. Jokes asside...is there any reasonably option to ship those without paying more for for the "shipping forewarding" than for the waveguides itself???
I used to look for some shipping forewarders but the calculators gave me some numbers arround 120-200 bucks and my thoughts tell me that its might be stupid to pay more for it than for the product i want, itself.
So why i am...

Seos Shipping Possibility...:-/

DNA-360/SEOS-10 1watt@1meter

invalid@example.com (BullDog) — Tue, 30 Aug 2016 12:06:14 +0000

Does there exist Frequency Response data for DNA-360/SEOS-10 combo, 1 watt@1meter with no Xover? with Impedance? I'm looking to try and model a xover for a somewhat unique 10 Max. There appears to be data around for non calibrated FR but surely in the development of the 360 and the SEOS's some data was taken to determine sensitivity?

Thanks

Upgrade diaphragm for BA750

invalid@example.com (tuxedocivic) — Wed, 25 May 2016 19:23:21 +0000

It would be really interesting if there's something out there. I'm not sure there is, but would be cool.

DNA-150 in various waveguides

invalid@example.com (tuxedocivic) — Tue, 29 Mar 2016 23:31:45 +0000

I've had a few enquiries about measurements of this and that. I figured I'd summarize all I have here. I'll continue to update it as I measure more.

The baffles vary. Some response plots include a woofer, ignore. Sorry the scales are not all the same. Keep this in mind as I made some of them quite coarse which makes them look very bad. No smoothing, just gating.

SEOS12

...

DNA-150 in various waveguides

The BA attitude

invalid@example.com (BillWaslo) — Thu, 21 May 2015 18:46:48 +0000

OK, got a few minutes tonight to do a quick measurement on the BA/SEOS18 combination (both kindly lent to me by Erich).

One problem: the mounting holes on the SEOS18 are spaced 3" apart (like on the DE250) but the BA's mounting holes are 4" apart (because of the larger diaphragm?). So, I measured with the waveguide placed on top of the driver, facing upwards. Just response so far, no distortion (I'm inside, with family, loud sweeps are not usually appreciated).

Response, on axis, 1m...

The BA attitude

Some quick compression driver tests on the SEOS-15

invalid@example.com (Matt Grant) — Sat, 21 Feb 2015 06:03:30 +0000

I recently grabbed a bunch of inexpensive 1.75" VC 1" exit compression drivers to test. Thought I would post some frequency response sweeps on the SEOS-15 others can see the basic response shape of the driver on that waveguide.

Waveguide was unmounted, pretty much I set the CD on the floor pointing up dropped the waveguide on it and took sweep. Mic was semi nearfield, about 1-1.5' above waveguide. In a baffle you might see some change in the shape of the low end <1.5k but everything...

Some quick compression driver tests on the SEOS-15

Monster 'pro' 12" woofer for 3ways

invalid@example.com (eadmin) — Fri, 30 Jan 2015 02:50:31 +0000

After some prototyping, a new 12" monster has been designed to work extremely well for 3 way speakers or a 2 way using the the SEOS-15 and the BA-750 compression driver. The logical choice will be a powerful 3 way design similar to the Maximus-18, only smaller.

Goals for this woofer:

1: Go low enough in a smaller ported enclosure to be used in a fullrange speaker.

2: Hit 80hz in a small sealed enclosure.

3: Massive power handling.

4: Really good X-max.

5: Easy to...

Monster 'pro' 12" woofer for 3ways

SEOS Soundstage Quality

invalid@example.com (blackcat54) — Sun, 28 Dec 2014 00:03:28 +0000

OK......

I get that the SEOS line of speakers are efficient, play loud and clean with minimal amplifier needs.

What is the quality of the soundstage they project in terms of width and depth?

Do they have the ability to project a delicate deep 3-D soundstage?

Years ago I remember hearing a set of B&W 801 Matrix speakers that created a beautiful deep multi layered 3-D soundstage that was impressive.

I value & crave re-creating that elusive sense of 3-D space memory from my past!...

SEOS Soundstage Quality

Denova DNA-360 Imedance curve, anyone?

invalid@example.com (cattskinner) — Fri, 07 Mar 2014 18:23:40 +0000

I am putting together some 2-way fronts with the DNA-360/SEOS-12's paired with B&C 10CL51's. I am not yet set up to take impedance readings on my own, but have a guy who does build crossovers if he has a workable impedance curve for the DNA 360 ???

I know the finished product won't be perfect using something other than actual measured spec's, but for now it's the best I can do.

I would greatly appreciate some help.

Denovo DNA-360 & SEOS-12 FR and Impedance Graphs

invalid@example.com (nosaj122081) — Tue, 31 Dec 2013 14:33:57 +0000

Hi everyone,
I'm currently working on a speaker project for my home theater and am REALLY interested in the Denovo DNA-360 driver and SEOS-12 waveguide. I was originally planning (and have actually completed the crossover design for it) on using the B&C DE10 CD and ME10 horn combination, however after reading about the SEOS and Denovo am SERIOUSLY, SERIOUSLY reconsidering. My only problem is, I need the frequency response and impedance graphs (or data files,...

Denovo DNA-360 & SEOS-12 FR and Impedance Graphs

Does the DNA-360 have a metal screen?

invalid@example.com (MrKazador) — Wed, 11 Dec 2013 16:47:28 +0000

Does the DNA-360 have a metal screen or is it just a piece of material at the end of the throat?