Solid State Power Amp Reviews

Plinius Reference A-150 power amplifier Associated Equipment

Sidebar 2: Associated Equipment

Digital sources: dCS Vivaldi Apex DAC, Vivaldi Upsampler Plus, Vivaldi Master Clock; Innuos Statement Next-Gen Music Server; Small Green Computer Sonore Deluxe opticalModule; Uptone Audio EtherRegen with SOtM sCLK-OCX10 Master Clock and sPS-500 power supply; Nordost QSource linear power supplies (2); HDPlex 300 linear power supply; Synology 5-bay 1019+ NAS powered by Ferrum Hypsos linear/switching hybrid power supply; Linksys mesh router and Arris modem; 2017 Apple iPad Pro, 2017 MacBook Pro laptop with 2.8GHz Intel i7, SSD, 16GB RAM.
Preamplifier: Dan D'Agostino Momentum HD.
Power amplifiers: Dan D'Agostino Momentum M400 MxV monoblocks.
Loudspeakers: Wilson Audio Specialties Alexia V.
Cables: Digital: Nordost Odin 1, Odin 2, and Valhalla 2 (USB and Ethernet), Frey 2 (USB adapter); AudioQuest WEL Signature; Wireworld Platinum Starlight Cat8 (Ethernet), OM1 62.5/125 multimode duplex (fiberoptic). Interconnect (XLR): Nordost Odin 2 and Blue Heaven subwoofer, AudioQuest Dragon, Canare (subwoofers). Speaker: Nordost Odin 2, AudioQuest Dragon. AC: Nordost Odin 2, Valhalla 2, Valhalla 1; AudioQuest Dragon and Firebird. Umbilical cords: Ghent Audio Canare on HDPlex 300 LPS and NAS; QSource Premium DC cables with Lemo terminations for QSources; SOtM sPS-500 umbilical cable for SOtM Master clock.
Accessories: Grand Prix Monza 8-shelf double rack and amp stands, 1.5" Formula platform; Symposium Ultra Platform; Nordost 20-amp QB8 Mark III, QKore 1 and 6; Titanium and Bronze Sort Kones, Sort Lifts; Stromtank S 2500 Quantum MK II power generator; AudioQuest Niagara 7000 and Niagara 5000 power conditioners, NRG Edison outlets, JitterBugs; ADD-Powr Sorcer X4; Environmental Potentials EP2050EE surge protector/filter; Wilson Audio Pedestals; A/V RoomService Polyflex Diffusers; Resolution Acoustics room treatment; Stillpoints Clouds (8); HRS DPX-14545 Damping Plates; Marigo Aida CD mat.
Listening room: 20' L × 16' W × 9'4" H.—Jason Victor Serinus

COMPANY INFO
Plinius Audio Ltd.
1 Tanner St., Woolston, PO Box 19531
Christchurch 8241
New Zealand
info@pliniusaudio.com
(949) 357-2858
www.pliniusaudio.com
ARTICLE CONTENTS

COMMENTS
Matias's picture
Submitted by Matias on January 5, 2024 - 10:52am

There are only 8 ohms in both modes and bridged. But have you measured it on 4 ohms too?

John Atkinson's picture
Submitted by John Atkinson on January 5, 2024 - 12:13pm
Matias wrote:
There are only 8 ohms in both modes and bridged. But have you measured it on 4 ohms too?

Yes, and the output power into 4 ohms is discussed in the measurements text.

John Atkinson
Technical Editor, Stereophile

georgehifi's picture
Submitted by georgehifi on January 5, 2024 - 8:21pm

Shame that it's massive near 40kg weight doesn't reflect in it's current ability into low impedances like normal true complimentary NPN/PNP push pull bi-polar amps can. EG:JC1's, Agostino, Krell ect etc

A little lame in it's current ability into the low impedances of the Alexia, hence the "bass was a mite wooly" sound description by Jason into the Alexia's, even though it has nice low output impedance .012ohm?

Cheers George

PeterG's picture
Submitted by PeterG on January 8, 2024 - 5:40am

Seems like a lot of juice and hassle for an amp that is just very good

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