this post was submitted on 28 Jul 2024
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Do 4 Way Speaker Boxes really need specific Amplifiers to Fully Drive all Speakers? (lemmy.blahaj.zone)
submitted 3 months ago by Mr_Mofu@lemmy.blahaj.zone to c/budgetaudiophile@lemmy.world
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Hello, I'm not really too well versed in Audio, so im sorry if this question may seem a bit silly to you experts.

A few Months ago, I got my self some Vintage 4 Way Speaker Boxes from the late East germany. The person I bought it from, insisted that these need very specific Amplifiers so all 4 Speakers of the 4 Way System will be utilized.

The Amplifier he said worked best with that are Fera V150s, also Vintage east German stuff... issue here being that mine has issues working consistently, so I'll probably have to replace it at some point.

What seems odd to me is that the 4 way Speaker Boxes need specific Amplifiers to use all 4 Speakers? Is that true, or would any amplifier be able to drive all 4 Speakers just fine?

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[–] JASN_DE@lemmy.world 5 points 3 months ago (4 children)

They are BSLF 170 Boxes!

Good news. Those are "standard" 4-way speakers and will work fine with stereo amps.

Also, if you need more infos, those have been sold as RFT BSLF170 and Quadral AK170S (Export model).

Should look like this: https://www.radiomuseum.org/images/radio/all_akustik_hannover/ak170s_1779428.jpg

[–] Mr_Mofu@lemmy.blahaj.zone 1 points 3 months ago (3 children)

I see, interessting!

Big question for me now is how someone else suggested to look into, if these have build in Crossover or if I gotta figure out something myself there

[–] JASN_DE@lemmy.world 2 points 3 months ago* (last edited 3 months ago) (2 children)

Inside you'll have a massive crossover and a separate tweeter safeguard/cossover combo:

http://bilder.hifi-forum.de/medium/758295/bsl150-3_285405.jpg

Just connect them to your amp and off you go.

[–] Mr_Mofu@lemmy.blahaj.zone 1 points 3 months ago (1 children)

Would love to check that before I go ahead and buy a new Amp, my Model is an older one afterall. Which speaker Hole was that picture taken from?

[–] JASN_DE@lemmy.world 1 points 3 months ago

If you want to check yourself, try the sub. The two mids are in separate volumes and too small anyway.