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Old 21st September 2005, 07:03 PM   #11
Corloc is offline Corloc  United States
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You like them better than the paper TB W4-616?

The 616 only goes to about 14k with an fs of 65 hz. It's a little hard to compair, because the 1320's are not in optimized cabs yet. The 616 has no top and until I have cabs, the 1320's have no bottom.
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Old 22nd September 2005, 07:42 PM   #12
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OK just got mine in the mail yesterday.

Got someone thats going to test them for me so when he is done I will link the Praxis and Klippel reports.

Frequency response and off-axis response
Actual Thiele Small parameters
non-linear distortion analysis
waterfall and/or energy storage analysis
BL/KMS curves
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Old 25th September 2005, 03:44 AM   #13
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Andrew, can't wait!
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Old 25th September 2005, 02:01 PM   #14
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Fs 81.839996, Qms 2.121518, Qes 0.674866, Qts 0.511997
Vas = 4.11 liters

Fs 75.559998, Qms 2.049201, Qes 0.601340, Qts 0.464911
Vas = 4.8 liters

Here are the T/S parameters after 36 hours at 20Hz, of the two that I ordered. For anybody who is interested.
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Old 26th September 2005, 08:41 AM   #15
eagles is offline eagles  China
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Default my personal suggustion

I think it is better to cut off the lower frequcy singal under 80HZ for the 3 inches or 4 inches full range speaker, and the sound will turn more pure and clear.
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Old 28th September 2005, 05:56 PM   #16
chuck55 is offline chuck55  United States
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T-B recommends:
"intended for thin or flat speaker box design"

Here is a 3.5 liter cabinet design from Aan at T-B:

c:\...\w4-1320sb vented box design.pdf

Unfortunately, I can't seem to copy the .pdf file Alan e-mailed me. Here is the best I can do:

File: w4-1320sb.bb6
w4-1320sb vented box design By Eagle Chang, TB-speaker
Ningbo China
Box Properties
Type: Vented Box
Shape: Prism, square
--Box Parameters--
Vb = 3.558 liters
V(total) = 4 liters
Fb = 80 Hz
QL = 7
F3 = 97 Hz
Fill = normal
No. of Vents = 1
Vent shape = round
Vent ends = one flush
Dv = 38 mm
Lv = 111.9 mm
Driver Properties
Type: Standard one-way driver
No. of Drivers = 1
--Mechanical Parameters--
Fs = 75 Hz
Qms = 1.5
Vas = 5.985 liters
Cms = 1.297 mm/N
Mms = 3.472 g
Rms = 1.091 kg/s
Xmax = 3 mm
Xmech = 4.5 mm
P-Dia = 85.19 mm
Sd = 57 sq.cm
P-Vd = 0.0171 liters
--Electrical Parameters--
Qes = 0.484
Re = 6.8 ohms
Le = 0.01 mH
Z = 8 ohms
BL = 4.794 Tm
Pe = 20 watts
--Electromech. Parameters--
Qts = 0.366
no = 0.503 %
1-W SPL = 89.16 dB
2.83-V SPL = 89.87 dB
Normalized Amplitude Response (dB-SPL/Hz) BassBox 6 Pro
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Custom Amplitude Response (dB-SPL/Hz at 1 m) with 20 watts BassBox 6 Pro
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Maximum Acoustic Power (dB-SPL/Hz at 1 m) BassBox 6 Pro
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
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Old 17th October 2005, 02:07 AM   #17
chuck55 is offline chuck55  United States
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trying again with a link
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Old 13th December 2005, 03:54 PM   #18
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Default anymore work on these designs?

Hi Guys,
I am going to bring back a pair of these from the States and I would like to build a simple design that could either pair with a sub or stand alone at fairly loud volume. Have you reached a design that you are satisfied with? If so, could you please share particulars?
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Old 13th December 2005, 05:32 PM   #19
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Smile Bamboo...


I have been enjoying mine. I stained the boxes last night and applied the first coat of poly...

I like their sound alot. But they sound better in the much larger pipe so i feel a different box can maximize performance.

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Old 14th December 2005, 01:26 AM   #20
chuck55 is offline chuck55  United States
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Nice looking speakers! Why the cap + resistor? Near the wall don't see why they would need baffle step correction. Have you tried towing them in more to get more HF?
Mine are in 3.5 liter box with 1" dia x 4.4" long vent. Finish them by X-mas I hope.
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