khendrik

Dynaco A-25's & Subwoofer

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I'm a complete newb to the Hifi world.  I just purchased a nice pair of Dynaco A-25's.  Hoping to set them up with a Sansui AU 7500 I have my eye on. Listen to a lot of 60, 70 rock, blues etc.  I'm simply looking to add a small subwoofer to fill out the sound a bit. 

  • what are a few basic subs anyone could recommend for a vintage setup. size etc.
  • what hookups on the sub should I be looking for (Someone mentioned a "Z hookup or connection"?*!") 

Thanks

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Hi khendrik, and welcome to the CSP forum. I am no expert with this famed speaker model, but the A-25 has that wonderful 10" woofer with rubber surround that gets such high praise - - how about first testing these "new" speakers out for awhile before deciding if they need any additional boost on the low end? Report back with impressions after listening to a variety of source material.

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On ‎29‎/‎01‎/‎2017 at 5:24 PM, khendrik said:

I'm a complete newb to the Hifi world.  I just purchased a nice pair of Dynaco A-25's.  Hoping to set them up with a Sansui AU 7500 I have my eye on. Listen to a lot of 60, 70 rock, blues etc.  I'm simply looking to add a small subwoofer to fill out the sound a bit. 

  • what are a few basic subs anyone could recommend for a vintage setup. size etc.
  • what hookups on the sub should I be looking for (Someone mentioned a "Z hookup or connection"?*!") 

Thanks

Hi there

Just a small comment here.

The original Dynaco A-25's were very well liked in their day.

J. Gordon Holt of the original Stereophile Magazine fame went gaga over them in his first review.

Very smooth and wide range, within their limits.

I like them very much.

Use caution with any bass boost, loudness controls or loud volume levels.

You might download Dynacophil's "Dynaco Dynamax" paper from this site.

It show's several options for multiple Dynaco speakers of the same brand and model.

There is no reason the same cannot be used with most all 8 ohm speakers, at least to experiment with.

For more bass, maybe if you have a friend with another pair of A-25's, try paralleling them together.

Fusing them with a 3/4 or 1 amp fast blow fuse in an open style fuse-holder will help protect your investment at least.

Just a thought.

Vern

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Listen to both Vern & ra.ra's sensible comments and also consider Gordon Holt's comment about the A-25s rattling his windows at 29 Hz. before you add a subwoofer.

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