The main differences that stood out for me are the 29db gain on gen 2 and 32 db gain on gen 1. On the XPA-1 there is a 60 watts per monoblock class A setting gen 2 vs 10 watts class A on gen 1 which is very nice!
Transport: Sony UBP-X700 UHD-Blu ray player spdif PC using Musiland Digital Times WASAPI via BNC connection - DAC: DC-1->XLR XPA-1 , RCA->Basx A-100 CD: Denon DCD 600 PCM 61 DAC. RCA Amp: XPA-1 gen 2 using XLR connections. Speakers: Axiom Audio m80 V3, Sennheisser HD700 headphones. two pairs 12 guage each bi-wire speaker cables per monoblock Headphone amp: Basx A-100 (INCREDIBLE VALUE!!)
Really simply, we have to turn the pre amp / processor up 3 db less with a Gen 1.
Gen 1's were designed with AVR's in mind as their source ie; it was pre UMC-1 and early pre amp days and Emotiva was selling way more power amps than pre amps or processors. Typically AVR's have less output than designated pre amps / processors so more gain was desirable in the power amps. Now Emotiva sells and has more pre amps and processors available, so the Gen 2 power amps can revert to a more common gain.
Last Edit: Apr 5, 2014 18:30:17 GMT -5 by Gary Cook
(Lounge) Samsung UHD HDR 55" LCD, Foxtel IQ3 (cable), Emotiva ERC-3, Emotiva XMC-1, Emotiva XSP-1, 2 x Emotiva XPA-1L's, Emotiva XPA-5, Ascension Summoner 863's & 843's + 263 Centre, SoundStream 17" sub, Emotiva XPA-100 sub amp, Denon DD TT, Sony BD X800 4K, Apple TV4K (Family) Sony HD LCD, Foxtel IQ2 (cable), Apple TV4, Panasonic BD60 (Home Office) MacMini, Emotive Big Ego & Airmotive 4's, Sony 12" Sub (Veranda) Zone 2, XPA-5 x 2 Channels & KEF Chorus
Could someone explain in "laymans" terms the real-life difference the 29 vs 32 db gain makes?
The real world difference would be most noticed if you have high efficiency speakers like Klipsch - some of them are 101db efficient. With the lower amp gain you are less likely to hear a slight hiss with the amp on and nothing playing. Other than the $100 increase in price and lowered gain and improved appearance - not much difference between the amps.
Yamaha A-S1000 Int Amp - Salk SongTowers - Oppo 103 - HTPC (Linux Mint) Other Gear: Yamaha RX-A2070, Klipsch Ref Center, Emotiva ERD-1's Twas a woman who drove me to drink. I never had the decency to write and thank her.