digital amplifier?

trinidesignz
trinidesignz Posts: 97
edited December 2008 in Speakers
I got Denon 3808ci, Velodyne DPS-12 and purchasing RTi A5/A7 . Do think I need to purchase a digital amplifier.?
Samsung-55 LED
Denon 3808ci
RTi A5 (Fronts)
CSi A6 (Center)
FXi 5 (Rears)
Velodyne DPS-12 (Sub)
EMOTIVA XPA-5 :D:cool::p;):)
Post edited by trinidesignz on
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  • trinidesignz
    trinidesignz Posts: 97
    edited December 2008
    sorry just realize I posted in the wrong area.
    Samsung-55 LED
    Denon 3808ci
    RTi A5 (Fronts)
    CSi A6 (Center)
    FXi 5 (Rears)
    Velodyne DPS-12 (Sub)
    EMOTIVA XPA-5 :D:cool::p;):)
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  • disneyjoe7
    disneyjoe7 Posts: 11,435
    edited December 2008
    trinidesignz wrote: »
    Do think I need to purchase a digital amplifier.?

    No.


    Why would you think that?

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR


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  • trinidesignz
    trinidesignz Posts: 97
    edited December 2008
    Oh I say Electronics title says Tv's • Dvd's •Amps so I thought it was there I was suppose to post. Well disney what do you think, should I get an amp to give the speakers more power or do you think my receiver should be able to give them enough JUICE.
    Samsung-55 LED
    Denon 3808ci
    RTi A5 (Fronts)
    CSi A6 (Center)
    FXi 5 (Rears)
    Velodyne DPS-12 (Sub)
    EMOTIVA XPA-5 :D:cool::p;):)
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  • disneyjoe7
    disneyjoe7 Posts: 11,435
    edited December 2008
    The receiver should be able to drive A5 & A7 ok with no major problems, but I think you understand an amp would bring out the best in them. Was there something you felt it was missing?


    FYI there's Digital amps yes, but most are not digital but Analog. Which isn't bad since we only hear analog sounds. ;)

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR


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  • trinidesignz
    trinidesignz Posts: 97
    edited December 2008
    ohhhh!! Thanks disney. What's a good amp you would recommend.
    Samsung-55 LED
    Denon 3808ci
    RTi A5 (Fronts)
    CSi A6 (Center)
    FXi 5 (Rears)
    Velodyne DPS-12 (Sub)
    EMOTIVA XPA-5 :D:cool::p;):)
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  • skrol
    skrol Posts: 3,395
    edited December 2008
    I assume that you are referring to Class D and not actually "digital". The "D" is simply the next letter designation (ie Class A, Class A/B, Class C, etc.). I had found a real nice write-up on Class-D amplifiers that was put out by Rotel Global Press. The Class D amp actually works on Pulse Width Modulation (PWM). While PWM can be purely digital it is also an analog technique. These amps sound like cutting edge technology and the best thing since the transistor with their > 90% efficiency and they can be very good. They show up in many portable devices as well as high end audio. They can sound really good if they are carefully designed but can also sound like crap if the design is skimpy.

    Back to your question...
    Denon receivers are no slackers and are able to drive 4 ohm speakers without trouble. The 3808 has an spec output of 130W into each channel at 8 ohms. This should do fine. I am drooling!
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
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  • BlueFox
    BlueFox Posts: 15,251
    edited December 2008
    trinidesignz wrote: »
    I got Denon 3808ci, Velodyne DPS-12 and purchasing RTi A5/A7 . Do think I need to purchase a digital amplifier.?


    Before I got my Sunfire TGA5400 I was driving 4 LSi15, and an LSiC with the Sony DA7100ES digital amp. Worked great. Before I got the Sony I was using a Denon 3805. Worked great. Before I got the Denon I was using a Sony DA5000ES digital amp. Worked great.

    Now I have all this extra equipment sitting in the garage waiting to be used in an emergency. :)
    Lumin X1 file player, Westminster Labs interconnect cable
    Sony XA-5400ES SACD; Pass XP-22 pre; X600.5 amps
    Magico S5 MKII Mcast Rose speakers; SPOD spikes

    Shunyata Triton v3/Typhon QR on source, Denali 2000 (2) on amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.
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  • disneyjoe7
    disneyjoe7 Posts: 11,435
    edited December 2008
    trinidesignz wrote: »
    ohhhh!! Thanks disney. What's a good amp you would recommend.



    It's more on what you wish too spend and if used is ok. www.Audiogon.com is a good place for used or this forum as members here offer sweet deals at times. If new to this give it some time, the audio bug will bit you I'm sure you will spend some $$ in time. :D

    BTW very good points from Skrol, amps are built in classes of design. The D class is newer more efficient but can be a bit noisier. I believe why filter out the noise, if not done that way in the beginning. I like AB / B class amps just my $.02 here.

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR


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  • Upstatemax
    Upstatemax Posts: 2,685
    edited December 2008
    If you are just going to run a 5.1 system, I would Bi-Amp the RTia5/7's from the 3808 and call it a day.
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  • lakesailor
    lakesailor Posts: 319
    edited December 2008
    Some people love Class "D" amplification and others do not. Personally I am an old school Class "A" guy.
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  • trinidesignz
    trinidesignz Posts: 97
    edited December 2008
    Thanks alot fellas. Now I just have to wait on polkdirect to put some rti a7 on sale.:D
    Samsung-55 LED
    Denon 3808ci
    RTi A5 (Fronts)
    CSi A6 (Center)
    FXi 5 (Rears)
    Velodyne DPS-12 (Sub)
    EMOTIVA XPA-5 :D:cool::p;):)
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