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Guest ratbag

Identify these Sony speakers?

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Guest ratbag

Is anyone familiar with these Sony speakers : model number, approx

date of production, anything...? The guy I bought them from said they

were model "SS-580", however I haven't been able to find any info online.

There's no model number on or inside the cabinets.

They are three-way systems. The cabinets are roughly the same size as

a Dynaco A-25, made from 3/8-inch ply, with walnut veneer.

The cabinets are in great condition. The sound is kind of boomy-boxy,

nothing special. I'm thinking of trying different internals as a DIY

exercise.

Thanks,

Roger

post-103644-1223692180.jpg

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The Sony SS-580, high end speakers of the early 1970's.

I bought these speakers in Singapore in 1971. They are rated as 25Watt RMS each. Woofer, Tweeter & squawker. If they are boomy the woofer rubber is probably breaking down. Replace with 8ohm 8Watt woofer from Richer Sounds. Frequency response was flat from 60Hz to 25Khz. Bought for £25 a pair in Singapore, but on sale in UK for £50 each in 1971. (My Sony amplifier TA-1010 had twin stereo speaker outputs so needed 4 speakers). Fantastic sound output if using Vinyl (18KHz) or digital (20KHz). Cassette tapes sound boomy because of poor frequency response of tape. (15KHz max). I sold them all as working in 2003 still looking like new.

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