The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Dynaco VTA tube amp kits, all Tubes4hifi.com products and all Dynakitparts.com products


    SCA 35 and 4 ohm speakers

    Share

    boycephoto

    Posts : 5
    Join date : 2009-08-15

    SCA 35 and 4 ohm speakers

    Post by boycephoto on Mon Jul 19, 2010 10:13 pm

    A question about the SCA35. I assume the SCA 35 does not have 4 ohm speaker taps because 4 ohm speakers were not common in the early 60's. Other than an impeadance miss-match is the output section strong enough to drive loads rated at 4 ohms?

    Thanks,
    Dave

    GP49

    Posts : 735
    Join date : 2009-04-30
    Location : East of the sun and west of the moon

    Re: SCA 35 and 4 ohm speakers

    Post by GP49 on Tue Jul 20, 2010 1:13 am

    You may find the SCA-35 delivering its full power of about 15 watts/channel to a 4Ω loudspeaker because that nominal 4Ω rating is usually a MINIMUM impedance. Across most of the audio band the "4Ω" loudspeaker will have a higher impedance than that. Some vented loudspeakers rated as "4Ω" are at or over 8Ω everyplace but the "saddle" in the impedance curve.

      Current date/time is Sat Dec 10, 2016 2:23 pm