HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level? HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?
Welcome to the AudioShark Forums.
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 14
  1. #1
    Senior Member
    Join Date
    Mar 2014
    Location
    Atlanta, GA
    Posts
    612
    Post Thanks / Like

    HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Which would offer greatest transparency, assuming highest quality resistors?

    Line level or speaker level?

    My Tannoys are 8 ohm, and I need to drop their output 2 dB with minimal/no loss.

    What value resistor(s) per application?

    Thanks!
    Small Green Computer; gigaFoil 4 Ethernet filter w/ Keces PS-3; Sonore ultraRendu; MBP (3) - stripped down for music only; AQ Diamond USB; Duelund USB; Curious USB; Lush USB; Supra USB; PS Audio LanRover; ISO REGEN w/short Curious USB links; Berkeley Alpha USB; 4 Audioquest Diamond ethernet - 0.75M, 1.5 M, 3M, 5M; Audioquest Diamond AES - 3M; Schiit Yggdrasil - fully updated; Ayre Codex - updated; Wyred4Sound STP-SE-2 preamplifier, Quicksilver Mono 120 amps w/KT150s; Wyred4Sound STP-750E Mk II amplifier w/Kimber TCX wiring & WBT binding posts; Quicksilver Mid Mono amplifiers w/KT77s, Joseph Audio Perspective 2 Graphenes; Symposium Super Plus Speaker Platforms; REL S-812 subwoofers; Duelund DCA12GA speaker cables; AV Room Service EVPs, Stein Music Harmonizers, Duelund DCA16GA & 20GA ICs; Tripp Lite PCs; Stealth Dream PCs; dedicated custom room; various GIK & ASC room treatments; etc.

    www.getbettersound.com

  2. #2
    Senior Member
    Join Date
    Feb 2016
    Location
    west Michigan
    Posts
    508
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    It is my understanding that it is more difficult to do and has more sonic penalties to do this speaker level than it does line level.
    Rothwell makes some nice inline rca attenuators or
    A search online for "Homemade RCA attenuator" on the Instructables web page provides all the details necessary to roll your own using your favorite resistors.
    My System:
    A trusty old Pioneer PD-65 as a Transport, Lumin A-1, a Merrill Heirloom T.T. as sources. A Lampizator DAC to Teo Cables to a SP-14 Tubed PreAmp, Pass XA30.5 , Fusion speaker cables, AudioKinesis Zephryn 46 Speakers. pair Rythmik F-12 subs, EP2050, Kaplan Power cables, Cerious Tech Graphine XT P.C., Hydra power conditioner, Two dedicated 20Amp power lines. DIY corner traps and Acoustic Geometry Curves for room treatment.

  3. Likes Alpinist, Jim Smith liked this post
  4. #3
    Senior Member
    Join Date
    Apr 2013
    Location
    The Neutral Zone
    Posts
    194
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Jim - low level would be my choice. Why? Constant impedance vs frequency as compared to a speaker load which can have large magnitude variations. I can do the calculations for you if I know the output impedance of your preamp and the input impedance of your power amp.
    Tom
    Tom

    Audio:
    Amati Futura Mains
    Amati Homage VOX Center,
    Proac Response 1sc Rears,
    Three MC2301's for L,C,R
    MC 602 for the rears
    C 1100, MX 151, MCD 1100, MR 77
    Nottingham Dais with Sumiko Palo Santos Presentation
    SurfacePro 3, JRiver, WW Starlight Platinum USB, Schiit Yggdrasil, Benchmark DAC3 HGC

    Video:
    MX 151, OppO BDP-95, JVC RS-500 DILA projector, 106" diagonal Stewart Luxus Screenwall Deluxe with Studiotek 130 G3 material.

    Lake House:
    Ohm F, MC 275V, C2300, MR 80, Rega P3

    OnDeck:
    McIntosh MAC 4300v

  5. Likes joeinid, Jim Smith liked this post
  6. #4
    Senior Member
    Join Date
    Mar 2014
    Location
    Atlanta, GA
    Posts
    612
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Tom,

    Thanks!

    I also thought low-level, but since the Tannoys are such a simple load, thought I might be wrong.

    It's actually my DAC driving my integrated.

    DAC output impedance - 75 ohms

    Integrated input impedance - 10k ohms.

    Do you have a preferred brand/type of resistor for maximum transparency?

    I thought I would insert it into the positive lead on my interconnect from the DAC to the amp.

    Or is there a better way without going into the units?

    Best,

    Jim
    Small Green Computer; gigaFoil 4 Ethernet filter w/ Keces PS-3; Sonore ultraRendu; MBP (3) - stripped down for music only; AQ Diamond USB; Duelund USB; Curious USB; Lush USB; Supra USB; PS Audio LanRover; ISO REGEN w/short Curious USB links; Berkeley Alpha USB; 4 Audioquest Diamond ethernet - 0.75M, 1.5 M, 3M, 5M; Audioquest Diamond AES - 3M; Schiit Yggdrasil - fully updated; Ayre Codex - updated; Wyred4Sound STP-SE-2 preamplifier, Quicksilver Mono 120 amps w/KT150s; Wyred4Sound STP-750E Mk II amplifier w/Kimber TCX wiring & WBT binding posts; Quicksilver Mid Mono amplifiers w/KT77s, Joseph Audio Perspective 2 Graphenes; Symposium Super Plus Speaker Platforms; REL S-812 subwoofers; Duelund DCA12GA speaker cables; AV Room Service EVPs, Stein Music Harmonizers, Duelund DCA16GA & 20GA ICs; Tripp Lite PCs; Stealth Dream PCs; dedicated custom room; various GIK & ASC room treatments; etc.

    www.getbettersound.com

  7. #5
    Senior Member
    Join Date
    Mar 2014
    Location
    Atlanta, GA
    Posts
    612
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Quote Originally Posted by jadedavid View Post
    It is my understanding that it is more difficult to do and has more sonic penalties to do this speaker level than it does line level.
    Rothwell makes some nice inline rca attenuators or
    A search online for "Homemade RCA attenuator" on the Instructables web page provides all the details necessary to roll your own using your favorite resistors.

    Thanks!

    I'll check it out.
    Small Green Computer; gigaFoil 4 Ethernet filter w/ Keces PS-3; Sonore ultraRendu; MBP (3) - stripped down for music only; AQ Diamond USB; Duelund USB; Curious USB; Lush USB; Supra USB; PS Audio LanRover; ISO REGEN w/short Curious USB links; Berkeley Alpha USB; 4 Audioquest Diamond ethernet - 0.75M, 1.5 M, 3M, 5M; Audioquest Diamond AES - 3M; Schiit Yggdrasil - fully updated; Ayre Codex - updated; Wyred4Sound STP-SE-2 preamplifier, Quicksilver Mono 120 amps w/KT150s; Wyred4Sound STP-750E Mk II amplifier w/Kimber TCX wiring & WBT binding posts; Quicksilver Mid Mono amplifiers w/KT77s, Joseph Audio Perspective 2 Graphenes; Symposium Super Plus Speaker Platforms; REL S-812 subwoofers; Duelund DCA12GA speaker cables; AV Room Service EVPs, Stein Music Harmonizers, Duelund DCA16GA & 20GA ICs; Tripp Lite PCs; Stealth Dream PCs; dedicated custom room; various GIK & ASC room treatments; etc.

    www.getbettersound.com

  8. #6
    Senior Member
    Join Date
    May 2014
    Location
    Tampa
    Posts
    1,499
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Line level is the better way to go than a ladder network at the speaker, which is 8ohms nominal, not constant. That said, why do you need to reduce the level by a constant 2db?
    Harrison Labs makes in line attenuators (3db), but they may violate audiophile pricing laws at around $30/pr

  9. Likes Jim Smith liked this post
  10. #7
    Senior Member
    Join Date
    Mar 2014
    Location
    Atlanta, GA
    Posts
    612
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Hi AJ,

    I had already ordered the -3dB Harrison units from Part Express.

    My ASR Emitter 2 has an optimum volume setting where no relays, attenuators, gain circuits, etc. are employed.

    Unfortunately that is about 2dB too loud for the majority of my playlists, especially for RoomPlay Reference sessions.

    Probably due to my OCD , I wanted to see which was the least degradation - an inline attenuator, or simply choosing the best volume setting overall.
    Small Green Computer; gigaFoil 4 Ethernet filter w/ Keces PS-3; Sonore ultraRendu; MBP (3) - stripped down for music only; AQ Diamond USB; Duelund USB; Curious USB; Lush USB; Supra USB; PS Audio LanRover; ISO REGEN w/short Curious USB links; Berkeley Alpha USB; 4 Audioquest Diamond ethernet - 0.75M, 1.5 M, 3M, 5M; Audioquest Diamond AES - 3M; Schiit Yggdrasil - fully updated; Ayre Codex - updated; Wyred4Sound STP-SE-2 preamplifier, Quicksilver Mono 120 amps w/KT150s; Wyred4Sound STP-750E Mk II amplifier w/Kimber TCX wiring & WBT binding posts; Quicksilver Mid Mono amplifiers w/KT77s, Joseph Audio Perspective 2 Graphenes; Symposium Super Plus Speaker Platforms; REL S-812 subwoofers; Duelund DCA12GA speaker cables; AV Room Service EVPs, Stein Music Harmonizers, Duelund DCA16GA & 20GA ICs; Tripp Lite PCs; Stealth Dream PCs; dedicated custom room; various GIK & ASC room treatments; etc.

    www.getbettersound.com

  11. #8
    Senior Member
    Join Date
    Oct 2015
    Location
    Hyderabad India
    Posts
    790
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Jim,

    Is there any reason why this can't be done in software?
    I'm sure this is going to be a learning moment for me but just had to ask.

    Regards.
    2 Channel Stereo :
    Win10 Transport + Fidelizer 8 + JRMC 26 & HQPlayer | Job INT | Western Electric 12GA | Green Mountain Audio Eos HX

  12. #9
    Senior Member
    Join Date
    Mar 2014
    Location
    Atlanta, GA
    Posts
    612
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    Quote Originally Posted by Nikhil View Post
    Jim,

    Is there any reason why this can't be done in software?
    I'm sure this is going to be a learning moment for me but just had to ask.

    Regards.
    I don't know.

    Neither ASR nor Schiit have any thing to offer in the software area.

    Not sure if Damien at Audirvana could help. I should probably ask him, but I doubt it will produce any results.
    Small Green Computer; gigaFoil 4 Ethernet filter w/ Keces PS-3; Sonore ultraRendu; MBP (3) - stripped down for music only; AQ Diamond USB; Duelund USB; Curious USB; Lush USB; Supra USB; PS Audio LanRover; ISO REGEN w/short Curious USB links; Berkeley Alpha USB; 4 Audioquest Diamond ethernet - 0.75M, 1.5 M, 3M, 5M; Audioquest Diamond AES - 3M; Schiit Yggdrasil - fully updated; Ayre Codex - updated; Wyred4Sound STP-SE-2 preamplifier, Quicksilver Mono 120 amps w/KT150s; Wyred4Sound STP-750E Mk II amplifier w/Kimber TCX wiring & WBT binding posts; Quicksilver Mid Mono amplifiers w/KT77s, Joseph Audio Perspective 2 Graphenes; Symposium Super Plus Speaker Platforms; REL S-812 subwoofers; Duelund DCA12GA speaker cables; AV Room Service EVPs, Stein Music Harmonizers, Duelund DCA16GA & 20GA ICs; Tripp Lite PCs; Stealth Dream PCs; dedicated custom room; various GIK & ASC room treatments; etc.

    www.getbettersound.com

  13. #10
    Senior Member
    Join Date
    Mar 2014
    Location
    Atlanta, GA
    Posts
    612
    Post Thanks / Like

    Re: HELP!!! How to drop 2 dB in volume with 8 ohm speaker - amp level or line level?

    DUHH!!!

    I researched the level adjustment of Audirvana from my computer, and it was stupidly easy to do!

    Thanks Nikhil!!!
    Small Green Computer; gigaFoil 4 Ethernet filter w/ Keces PS-3; Sonore ultraRendu; MBP (3) - stripped down for music only; AQ Diamond USB; Duelund USB; Curious USB; Lush USB; Supra USB; PS Audio LanRover; ISO REGEN w/short Curious USB links; Berkeley Alpha USB; 4 Audioquest Diamond ethernet - 0.75M, 1.5 M, 3M, 5M; Audioquest Diamond AES - 3M; Schiit Yggdrasil - fully updated; Ayre Codex - updated; Wyred4Sound STP-SE-2 preamplifier, Quicksilver Mono 120 amps w/KT150s; Wyred4Sound STP-750E Mk II amplifier w/Kimber TCX wiring & WBT binding posts; Quicksilver Mid Mono amplifiers w/KT77s, Joseph Audio Perspective 2 Graphenes; Symposium Super Plus Speaker Platforms; REL S-812 subwoofers; Duelund DCA12GA speaker cables; AV Room Service EVPs, Stein Music Harmonizers, Duelund DCA16GA & 20GA ICs; Tripp Lite PCs; Stealth Dream PCs; dedicated custom room; various GIK & ASC room treatments; etc.

    www.getbettersound.com

  14. Likes Nikhil liked this post
Page 1 of 2 1 2 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •