Amps 4 or 8 ohm

Pycroft
Pycroft Posts: 1,960
edited December 2009 in Electronics
Do all amps that can handle 4 ohm loads have a button or switch that allows them to choose 4 or 8 ohms? My Soundcraftsmen does not, but I heard that some do. Is there something I need to do to tell the amp that I am hooking in tougher to drive speakers?

James
2 Channel/HT:
Sony SS-M9 P's (ES version)
Sony SS-M1CN Center Channel
Polk RT800 Surround Speakers
Odyssey Stratos Dual Mono Amplifiers
TAD 150 Signature Tube Preamp
Harman Kardon HK354
Sony SACD Player
Post edited by Pycroft on
· Share on FacebookShare on Twitter

Comments

  • George Grand
    George Grand Posts: 12,258
    edited December 2009
    That's a "feature" you find on receivers, not amps.
    · Share on FacebookShare on Twitter
  • concealer404
    concealer404 Posts: 7,440
    edited December 2009
    Pycroft wrote: »
    Do all amps that can handle 4 ohm loads have a button or switch that allows them to choose 4 or 8 ohms? My Soundcraftsmen does not, but I heard that some do. Is there something I need to do to tell the amp that I am hooking in tougher to drive speakers?

    James


    Nope, and nope. ;)
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

    Desk: Schiit Magni 2 Uber / Schiit Modi 2 Uber / ISK HD9999

    Office: Schiit Magni 2 Uber / Schiit Modi 2 Uber / Dynaco SCA-80Q / Paradigm Legend V.3

    HT: Denon AVR-X3400H / Sony UBP-X700 / RT16 / CS350LS / RT7 / SVS PB1000
    · Share on FacebookShare on Twitter
  • Hawkeye
    Hawkeye Posts: 1,313
    edited December 2009
    My amps have three sets of binding posts. 2, 4 and 8. It is just a matter of hooking them up where I prefer. It was like Goldilocks and the 3 bears. 2 Ohm was too thin, 8 too fat and 4 just right.

    The only switch I have my amps is for balanced or unbalanced besides the power and meter lights.

    Gordon
    2 Channel -
    Martin Logan Spire, 2 JL Audio F112 subs
    McIntosh C1000 Controller with Tube pre amp, 2 MC501 amplifiers, MD1K Transport & DAC, MR-88 Tuner
    WireWorld Eclipse 6.0 speaker wire and jumpers, Eclipse 5^2 Squared Balanced IC's. Silver Eclipse PCs (5)
    Symposium Rollerblocks 2+ (16)Black Diamond Racing Mk 3 pits (8)
    · Share on FacebookShare on Twitter
  • Pycroft
    Pycroft Posts: 1,960
    edited December 2009
    Good deal...I'll be plugging in my new SDA's tomorrow :)
    2 Channel/HT:
    Sony SS-M9 P's (ES version)
    Sony SS-M1CN Center Channel
    Polk RT800 Surround Speakers
    Odyssey Stratos Dual Mono Amplifiers
    TAD 150 Signature Tube Preamp
    Harman Kardon HK354
    Sony SACD Player
    · Share on FacebookShare on Twitter
  • nguyendot
    nguyendot Posts: 3,594
    edited December 2009
    The only swich my amps have are "power".
    Main Surround -
    Epson 8350 Projector/ Elite Screens 120" / Pioneer Elite SC-35 / Sunfire Signature / Focal Chorus 716s / Focal Chorus CC / Polk MC80 / Polk PSW150 sub

    Bedroom - Sharp Aquos 70" 650 / Pioneer SC-1222k / Polk RT-55 / Polk CS-250

    Den - Rotel RSP-1068 / Threshold CAS-2 / Boston VR-M60 / BDP-05FD
    · Share on FacebookShare on Twitter