Best power amp for LSIM 707's?

I have a pair of LSIM 707's and a Parasound A2100 preamp, and am looking for the best power amp to complement them for a broad range of music. I'm leaning toward the Parasound 2250, but wondering if I would hear the difference with an A21; does anyone have any experience comparing these two amps?

Comments

  • DSkipDSkip Posts: 13,655
    How big is your room?
    audiothesis.com/

    Speakers: Harbeth: P3ESR, 30.2, SHL5+; Usher: CP-6311, Be-10, T-515; Rosso Fiorentino: Elba, Fiesole, Volterra; Polk: T50, Signature S60, S55, S35, S30, S20, S15, RTA 15tl, Sonner Audio Allegro Unum
    Preamps: Shuguang S200MK, Dayens Ampino, Parasound P5
    Amps: Shuguang S845MK, Dayens Ampino Monoblocks, Parasound A23
    Integrateds: Dayens Ampino, Triode Corporation TRV-88SER, MastersounD: Dueventi, Compact 845, Evolution 845; North Star Design Blue Diamond
    Sources: AURALiC Aries, AURALiC Altair, Denon HEOS Link, North Star Design: Magnifico, Supremo, Incanto, Intenso, Venti
    Cabling: Wireworld
    TV: Sony XBR-75X940C
  • cheegcheeg Posts: 11
    The room is about 18' wide, 13' deep and 10' high.
  • txcoastal1txcoastal1 Posts: 8,476
    Is A21 a better amp?? Yes, but you have to ask yourself "How much am I putting into this system overall".

    Do you have, or have you been looking for a suitable DAC for your sources?
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures, Simaudio 780D DAC
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Modwright LS100, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers
  • DaveHoDaveHo Posts: 1,571
    There is no "best" anything in this hobby. Associated gear, room size, listening preferences all come into play. What I'm trying to say is, we need more info to help spend your money! :D
  • cheegcheeg Posts: 11
    txcoastal1 wrote: »
    Is A21 a better amp?? Yes, but you have to ask yourself "How much am I putting into this system overall".

    Do you have, or have you been looking for a suitable DAC for your sources?

    Thanks for responding; both of your questions are good ones. As for the second question, no I haven't been looking for a DAC; I had assumed that I'd upgrade my low end cd/dvd player to a better unit, after getting the power amp in place. Wouldn't a higher end CD player have a good DAC built in?

    As for the first question, I'll start by saying that I didn't want to spend much more than $1000 for a power amp, and that's what the 2250 would cost. But I've wanted a really good audio system since I was a kid, and I'm in my late 60's now, so I doubt I'll be upgrading my amp again after this. If I'm really going to hear a substantial difference between the 2250 and the A21, I'll consider the extra cost, as I don't want to find myself a year or two later saying "this is good, but I really wish I'd spent that extra grand on the power amp..." If there were a way for me to compare the two amps with a comparable pair of speakers before buying, It would be a simple choice, but that doesn't seem to be possible in my area (Pasadena). the next best thing is to look for input from anyone who's listened to the two amps, or ideally been able to A-B them. Is there anyone like that out there?
  • txcoastal1txcoastal1 Posts: 8,476
    Would you consider used? Here is an audio dealer that has one in silver in Cali. (assumed when you said Pasadena) Here on the forum us members have done a lot of buy sell trade on the used market and put the other coin in other upgrades.

    https://www.audiogon.com/listings/solid-state-beautiful-2017-11-29-amplifiers


    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures, Simaudio 780D DAC
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Modwright LS100, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers
  • DSkipDSkip Posts: 13,655
    Have you considered the Parasound Halo Integrated? You can definitely do better with separates, but for an all in one package with the 707 it would be hard to beat. It also has a built-in DAC, though I would consider that an add-on rather than a cherished feature.

    The A23 is a solid amp that pairs well with them as well. The truth is, the world is your oyster and you can go down dozens of avenues depending on dozens of factors.
    audiothesis.com/

    Speakers: Harbeth: P3ESR, 30.2, SHL5+; Usher: CP-6311, Be-10, T-515; Rosso Fiorentino: Elba, Fiesole, Volterra; Polk: T50, Signature S60, S55, S35, S30, S20, S15, RTA 15tl, Sonner Audio Allegro Unum
    Preamps: Shuguang S200MK, Dayens Ampino, Parasound P5
    Amps: Shuguang S845MK, Dayens Ampino Monoblocks, Parasound A23
    Integrateds: Dayens Ampino, Triode Corporation TRV-88SER, MastersounD: Dueventi, Compact 845, Evolution 845; North Star Design Blue Diamond
    Sources: AURALiC Aries, AURALiC Altair, Denon HEOS Link, North Star Design: Magnifico, Supremo, Incanto, Intenso, Venti
    Cabling: Wireworld
    TV: Sony XBR-75X940C
  • txcoastal1txcoastal1 Posts: 8,476
    Skip, he already has the preamp
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures, Simaudio 780D DAC
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Modwright LS100, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers
  • DSkipDSkip Posts: 13,655
    txcoastal1 wrote: »
    Skip, he already has the preamp

    I've seen that Ron. This would be a step up in the preamp game as well. For some, simplicity is a blessing. For others, SQ trumps all.
    audiothesis.com/

    Speakers: Harbeth: P3ESR, 30.2, SHL5+; Usher: CP-6311, Be-10, T-515; Rosso Fiorentino: Elba, Fiesole, Volterra; Polk: T50, Signature S60, S55, S35, S30, S20, S15, RTA 15tl, Sonner Audio Allegro Unum
    Preamps: Shuguang S200MK, Dayens Ampino, Parasound P5
    Amps: Shuguang S845MK, Dayens Ampino Monoblocks, Parasound A23
    Integrateds: Dayens Ampino, Triode Corporation TRV-88SER, MastersounD: Dueventi, Compact 845, Evolution 845; North Star Design Blue Diamond
    Sources: AURALiC Aries, AURALiC Altair, Denon HEOS Link, North Star Design: Magnifico, Supremo, Incanto, Intenso, Venti
    Cabling: Wireworld
    TV: Sony XBR-75X940C
  • cheegcheeg Posts: 11
    DSkip wrote: »
    Have you considered the Parasound Halo Integrated? You can definitely do better with separates, but for an all in one package with the 707 it would be hard to beat. It also has a built-in DAC, though I would consider that an add-on rather than a cherished feature.

    The A23 is a solid amp that pairs well with them as well. The truth is, the world is your oyster and you can go down dozens of avenues depending on dozens of factors.

    Hi DSkip, thanks for your response. I just bought the A2100, so I'd rather not have to start by selling it; also, I haven't heard anything negative about it, so I doubt I'd be any better off with the Halo Integrated (although I've heard it's a great amp).

    As for the A23, I'm sure it's a good power amp; it's a John Curl design, and has a long track record. But the folks at Polk said not to use anything less than 150W/ch, so I thought the A23, at 125W/ch into 8ohms, would be a little underpowered. The 2250v2 has 275W/ch, but I don't think it's a John Curl design; do you have any thoughts on how the A23 would compare to the 2250?
  • cheegcheeg Posts: 11
    txcoastal1 wrote: »
    Would you consider used? Here is an audio dealer that has one in silver in Cali. (assumed when you said Pasadena) Here on the forum us members have done a lot of buy sell trade on the used market and put the other coin in other upgrades.

    https://www.audiogon.com/listings/solid-state-beautiful-2017-11-29-amplifiers


    Thanks TX, I'm considering that one, although I wonder why the seller only gave its condition an 8/10. So far, I havent' heard anyone on this blog say anything (good or bad) about the 2500v2; am I missing something?
  • cheegcheeg Posts: 11
    That should have said 2250, not 2500; sorry about the typo...
  • cfrizzcfrizz Posts: 12,677
    Parasound makes terrific gear, you can't go wrong with either of those amps.

    Welcome to Club Polk.
    Sunfire TGP III PrePro, Sunfire Cinema Grand Signature 405wpc 5 ch. Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony Bravia KDL-40R510C TV, Polk S60 Main Speakers, Boston VR-920 Center Channel, SVS NSD-12 SB12 Subwoofer, Polk DSW 400 Subwoofer, Polk FXi-3 Surround Speakers
  • EarthyEarthy Posts: 443
    I have been running my SDA 2.3's with a P3 A21 Halo combo for 7 years. Really love the setup.
    Polk Audio SDA SRS 2.3TL
    Parasound Halo A21
    Parasound Halo P3

    Home theater
    Polk LSiM 707, 706c, 702, 703
    Polk Blackstone TL3 for height
    SVS PB12-ISD Sub
    Denon AVR-X6400h
    LG OLED65B7A
    Sony UBPX800
    Logitech Harmony Elite

    Home Theater #2
    Polk Audio LS70, CS350LS, LSF/X, S4
    Onkyo TX-NR808



  • WLDockWLDock Posts: 2,013
    A2100 vs. A21 for $1000? I think you made the right choice as it might be hard to find an A21 for $1000. Also, if this is going to be your last amp purchase as you stated then.... spending more than $1000 might not be worth it as that 2100 is a beast of an amp. Unless you can find a deal on a set of brutal monoblock amps. That's the one thing I want to try one day....but I'm so far behind. I'll probably be in my 60's before that happens. In my dreams I would love to have a tube set (Rogue Audio M120, M180, Cary Audio,etc), class A/B set (Parasound JC1, Pass Labs, McIntosh,Odyssey Audio Khartago Monos, Schitt Vidar, etc ) and, Class D Set (Hypex, ICEpower, Bel Canto REF1000M) to play with and compare the different tech.

    I guess everyone has a dream. In the end, just getting to the point of a solid 2 ch system set correct in whatever available room would be special. I would be happy with an A21 or a big McCormack, etc.
    FAMILY ROOM
    HDTV - Sharp AQUOS LC-70LE600U 70" | AVR/Streamer - Onkyo TX-NR3008 | Amp - Parasound HCA-1203A
    Blu-Ray/Media/Gaming - Sony PS3-320GB / Microsoft Xbox One | Broadcast - Xfinity X1 Platform
    Front Spkrs - Coming...DIY Statement II | Center Spkrs - Coming...DIY Statement II | Rear Spkrs - Artison Portrait LRS
    Sub - DIY Stereo Integrity HT 15 | Sub Amp - Dayton Audio SA1000
    Wire - Audioquest Type 4, BJC Belden 5000 | HDMI - BJC Belden | Power Cables - Pangea | Surge - Monster
  • Kurt300Kurt300 Posts: 274
    cheeg wrote: »
    I have a pair of LSIM 707's and a Parasound A2100 preamp, and am looking for the best power amp to complement them for a broad range of music. I'm leaning toward the Parasound 2250, but wondering if I would hear the difference with an A21; does anyone have any experience comparing these two amps?

    I’ve heard both amps on 707s. If it’s all about music, I personally would spend the $1400-1500 for the A21 (used, made within the last 3-5 years). The 2250 will be as clear and dimensional as you need for home theater, though.


    Living room HT - 12.2 LSiM: 3x 707's - fronts, front wides, and rears | 2x 703's - surrounds & front highs | Dual 706c's centers (high & low) | Onkyo 3010 | Oppo UDP-203 | 2x Parasound 5250's, Parasound 5125 | Dual SVS PB12-Plus subs | Two 20 amp dedicated circuits | Black Mamba II ICs | Mitsubishi 92" DLP TV
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