beovox s45-2

AudioGeek · 10th March 2007, 01:39 AM

got a pair of BO Beovox S45-2.

any mods on x-over?

it sounds mighty good as it is really.

any other info?

Nisbeth · 10th March 2007, 08:23 AM

A little if you don't already have the specs: http://www.beoworld.co.uk/beovoxs45s75.htm

/U.

forr · 10th March 2007, 01:40 PM

I own a pair of S45-2 bought 10 Euros in 1999, they are installed in a small office room (2.5 m x 4 m).
As they sound pretty good, I did'nt even open the box.
The Philips tweeter used to be one of my favourite circa 1975.
The S45-2 became impressive when I add a Sokol's circuit (an adjustable transform for the bass) ahead of the power amp. The 8' Peerless bass driver with paper cone is a very capable driver.
I also tested the very simplified version of Richard Brice's Francistein circuit which makes stereo more stable : I would recommand to try it with any pair of stereo speakers.

forr · 10th March 2007, 01:45 PM

I may add that the S45 has a Baakgard crossover said to be phase linear. Bass and tweeter are crossed at 12 or 18 dB/o, the little médium driver being a "filler" filtered with slopes of 6 dB/o on either side of the crossover frequency.

clh1997 · 9th May 2010, 08:13 PM

I know this thread is more than three years old - but others might Google it (as I just did).

Beovox S45-2 is a surprisingly good little speaker - and can be made even better sounding without to much work or expenses.

The capacitors in the X-over network should be changes/replaced with some made for the purpose (audiophile type). Since it's only 3 capacitors per speaker (and all 15 uF) it won’t ruin you. I put Jantzen Cross Caps in mine - but others manufactures can be used.

Suggestions to other modifications can be found at http://forum.beoworld.org/forums/t/32520.aspx

Best regards - Claus

frank12391 · 8th July 2010, 11:41 PM

I know this is an old thread but I'm doing up a set of Beovox S45 - 2 ATM. Does anyone know what the resister values are?

10th March 2007, 01:39 AM	#1
AudioGeek diyAudio Member Join Date: Jan 2004 Location: Minnesota	beovox s45-2 got a pair of BO Beovox S45-2. any mods on x-over? it sounds mighty good as it is really. any other info? __________________ It is not you... you are it.

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10th March 2007, 08:23 AM	#2
Nisbeth diyAudio Member Join Date: Jan 2001 Location: Denmark	A little if you don't already have the specs: http://www.beoworld.co.uk/beovoxs45s75.htm /U.

10th March 2007, 01:40 PM	#3
forr diyAudio Member Join Date: Dec 2004 Location: Next door	I own a pair of S45-2 bought 10 Euros in 1999, they are installed in a small office room (2.5 m x 4 m). As they sound pretty good, I did'nt even open the box. The Philips tweeter used to be one of my favourite circa 1975. The S45-2 became impressive when I add a Sokol's circuit (an adjustable transform for the bass) ahead of the power amp. The 8' Peerless bass driver with paper cone is a very capable driver. I also tested the very simplified version of Richard Brice's Francistein circuit which makes stereo more stable : I would recommand to try it with any pair of stereo speakers.

10th March 2007, 01:45 PM	#4
forr diyAudio Member Join Date: Dec 2004 Location: Next door	I may add that the S45 has a Baakgard crossover said to be phase linear. Bass and tweeter are crossed at 12 or 18 dB/o, the little médium driver being a "filler" filtered with slopes of 6 dB/o on either side of the crossover frequency.

9th May 2010, 08:13 PM	#5
clh1997 diyAudio Member Join Date: Aug 2008	I know this thread is more than three years old - but others might Google it (as I just did). Beovox S45-2 is a surprisingly good little speaker - and can be made even better sounding without to much work or expenses. The capacitors in the X-over network should be changes/replaced with some made for the purpose (audiophile type). Since it's only 3 capacitors per speaker (and all 15 uF) it won’t ruin you. I put Jantzen Cross Caps in mine - but others manufactures can be used. Suggestions to other modifications can be found at http://forum.beoworld.org/forums/t/32520.aspx Best regards - Claus

8th July 2010, 11:41 PM	#6
frank12391 diyAudio Member Join Date: Jun 2010 Location: Sydney Australia	I know this is an old thread but I'm doing up a set of Beovox S45 - 2 ATM. Does anyone know what the resister values are?

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