Opinions PLEASE - Pass Labs XA-100.5 or X250.8 for Magico S5 MK II


Opinions PLEASE - Pass Labs XA-100.5 or X-250.8 for Magico S5 MK II

- I now own the X250.8 and like it with my Magico S5 originals.

- I have ordered new Magico S5 MKII that will be here around Christmas and have a chance to trade my X250.8 toward a pair of XA-100.5.

- I use to own the X350.5 and really liked the warmth of the .5 amps but can't say i like it better than the 250.8 as they are different but like them both. 

- I have read over and over how the XA pure class a mono's are another level and wanted to ask you guys.

- Do you think the  XA-100.5 is enough power for  Magico S5 MKI? Would love some feedback, thoughts and/or opinions from you guys. Thanks  
 
Extra info below as FYI - only if interested 
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  Associated Equipment (Audion Virtual System)

Digital: DAC: Bricasti Design M1 Special Edition DAC; Servers: PC: Qotom 190S Dual Port - Baytrail J1900 12v Micro-PC, Small Green Computer SonicTransporter for Roon to my Bricasti (my main audio server), Storage: WD My Cloud 12v 2TB NAS, Digital Transport: Bricasti M1 Built-In Ethernet Network Player,

Network Switch / Power Supplies / Software
: The Linear Solution OCXO Audiophile Switch, Power Supplies: Uptone Audio JS-2 (2-Rail) Linear Power Supply, The Linear Solution LPS-912 Linear Power Supply, Breeze Audio 12v Linear Power Supply (2-units), Re-Clocker: Wyred 4 Sound C Remedy Femto, USB: Uptone Audio ISO Regen, Curious Cables 200m Regen link, Uptone Audio USPCB A/B Adapter, DVD: Denon 2910 DVD/CD Player/Transport, Audio Software: Windows 10 Pro, Audiophil Optimizer, ROON 1.4, Fidelizer 8.0 Pro, JPlay, Roon 1.4, JRiver MC23, Sonic Orbiter.

Analogue: Turntable: VPI Aries Limited Edition 3D, Tonearm: 10.5 Inch Printed 3D Arm, Cartridge: Denon DL-S1,

Preamplification: Simaudio Moon Evolution P-8 Reference Preamplifer, Mark Levinson No.326 phono, Antique Sound Labs AQ-2004DT Tube Linestage preamp, Step Up Transformer: Bob’s Device Cinemag 1131, 

Power Amplifiers: Pass Labs X250.8 Amplifier

Loudspeakers: Magico S5 Reference Loudspeakers MCast Bronze, Magico S5 MK II Loudspeakers MCast Pewter on order (ETA 12/2018)

Cables: Interconnect Cables: Kubala-Sosna Research Emotion XLR 2.0M, Kubala-Sosna Research Emotion XLR 1.5M, Darwin Ascension RCA 0.5M, Speaker Cables: Kubala-Sosna Research Emotion 2.5M Spades, AC Cables : Kubala-Sosna Emotion 2M (x4 cables), Nordost Heimdall 2 2.0M (x2 cables), Verastarr Grand Illusion II 1.5M, Elrod EPS-2 Signature 1.0M, Zu Event MKI (3 cables), Zu Mission 2.0M, DC Cables: Gent Audio Custom DC Cables (Canare/Oyaide) (6), USB: Audiocadabra Ultimus3 Double-Headed Solid-Silver USB Cable 1.0M, DROK USB Multi-meter/Tester, Digital: Black Cat Silverstar 75 BNC/RCA, MIT Terminator-3 RCA, DH Labs Silver Sonic D-75 RCA (2), Tara Labs Prism 100dx-1 Tosilink, HDMI: AudioQuest Chocolate 1.0M, AudioQuest Forest 3.0M, Ethernet: AudioQuest Vodka RJ/E 1.0M, AudioQuest Forest RJ/E 1.0 (2 cables), Cardas Clear RJ/E 0.5M, Linear Solution RJ/E 1.5M.

Sundries / Accessories: Solid Tech Hybrid 3+3 Shelves Audio Rack w/White Shelves and Silver Pillars, Solid Tech Rack of Silence Amplifier Stand, SRA Ohio Class Isolation Platform, Symposium Acoustics Svelte Plus Isolation Platform, Isoacoustic Iso-pucks (8), PS Audio P10 Power Plant Power Conditioner; Weizhi Precision Precision PRS-6 Power Distributor, Red Dragon Audio Ceramic Cable Elevators (4), EdenSound Brass Vibration Weights (8), Bright Star IsoNode Footers, iFi Audio iPower 9V DC Power Supply, PS Audio Noise Harvesters (6), Furutech GTX (R) outlet, Oyaide R1 Beryllium AC Wall outlets (2) ; Blue Circle Audio The Yalu Balula (2)— Fsmithjack

** Room is
14 x 24 w/Cathedral Ceilings - 16 Foot a peak

** Music likes:
Assorted Music no metal or loud hard rock anymore really - not much Large Scale classical either but everything else.

** Likes / Priority:
Transparency - Delicate - Linear - High resolution - microscope but not sterile not etched or lifeless - I know there is a fine Line here but I'm looking to walk the line as close as I can - real see through into the music - transparent to the source because I love my DAC - extended and to remove as many layers without being clinical - image and sound stage lover - tight bass - hate flab - like speed and transparency but needs to be musical.

** Perspective
Speaker upgrade that I am hoping is a nice bump. 


fsmithjack

Showing 1 response by georgehifi

At 88db and looking at this graph and Stereophile remark, I would go the XA160.8 min or the XA200.0.
The XA100.8 will fine, if with a few under your belt your NOT a very loud listener/conductor/drummer/air-guitarist.

" The impedance does drop to minima of 3.15 ohms at 78Hz and 3.55 ohms at 900Hz, and there is a current-hungry combination of 4.3 ohms and –49° at 51Hz."

https://www.stereophile.com/images/217MagS52fig1.jpg

Cheers George