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theil-small params for Fostex FE-103 (RS 40-1197) [message #33907]

Tue, 25 September 2001 07:51

Chris R
Messages: 133
Registered: May 2009

Master

Hi Folks,

I'm trying to find the T/S parameters for those little 4" full
range drivers from Radio Shack. I have one in a TQWP box that
works pretty well, but I'm thinking about putting two plus a piezo
tweeter in a Pi-aligned box for use as rear channel HT speakers.
They'll be good to about 80-100Hz. What I don't have is Vas
or resonant freq.

Thx, Chris

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Re: theil-small params for Fostex FE-103 (RS 40-1197) [message #33913 is a reply to message #33907]

Tue, 25 September 2001 16:32

Wayne Parham
Messages: 18789
Registered: January 2001

Illuminati (33rd Degree)

Here's what I have for the Fostex FE-103E. Not sure if it's the same as the Radio Shack 40-1197 or not.

Vas = 420 c.i.
Qts = 0.35
Fr = 80Hz
Sensitivity = 89dB/2.83v/M
Max power = 15W
Xmax = 0.01"

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Re: theil-small params for Fostex FE-103 (RS 40-1197) [message #33921 is a reply to message #33913]

Wed, 26 September 2001 12:03

MikeSt
Messages: 1
Registered: May 2009

Esquire

I found this at www.radioshack.com It's not the complete T/S params, but it's a start. I'd do a search on the Full Range Driver Forum http://f18.parsimony.net/forum31999/ to see if the info is there. If not, post a message. Many folks on that forum have worked with the RS 40-1197.

MikeS

GENERAL
Nominal Impedance:.........................8 Ohm +/- 15% at 1.6 V & 400 Hz
Resonance Frequency:..............................80 Hz +/- 15 Hz at 1.6 V
Sound Pressure Level:................................90 dB/W (1m) +/- 2 dB
Power Handling Capacity:...............................................3 W
Music Power:..........................................................15 W
Weight:...................................................590 g (20.85 oz)

MAGNET
Dimensions:................................................80 x 40 x 10 mm
Weight:..................................................188.5 g (6.65 oz)

VOICE COIL
Nominal Diameter:......................................20.32 mm (0.8 inch)
Bobbin Material:.....................................................Paper
Wire Size:.........................................................0.12 mm
DC Resistance:.....................................................7.6 Ohm
Turns/Layers:............................................76 Turns/2 Layers
Winding Length:.....................................................5.6 mm

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