Stereo Amplifiers Racine WI

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Best Buy
2630 S Greenbay Rd
Racine, WI
 
American TV
(414) 768-1000
9191 South 13Th Street
Oak Creek, WI
 
Suess Electronics Inc
(920) 733-6464
2520 West Wisconsin Ave
Appleton, WI
Services
Home Audio, Authorized Service Center, Design & Installation

Automation Arts, Inc.
(608) 831-5012
3308 Nursery Drive
Middleton, WI
Services
Audio / Video, Home Automation / Systems Integration / Home Networking, Home Theater, Lighting Control, Multi-Room Audio
Brands
Crestron, Da-Lite, Denon, Energy, James Loudspeaker, Liberty Cable, Lutron Homeworks Interactive, Middle Atlantic, Mitsubishi, Monster Cable, Monster Power, Panasonic Phone Systems, Parasound, Request, Runco, Russound, Sonance, Velodyne.
Certifications
One or more employees at this company have achieved CEDIA Professional Certification status:- Erik Borgen, CEDIA Certified Professional EST II- Tracey Dunn, CEDIA Certified Professional EST III (Advanced EST), CEDIA Certified Professional EST II- Geoff Eidsmoe, CEDIA Certified Professional EST II- Jason Rogers, CEDIA Certified Professional EST II

Best Buy
4240 W Wisconsin Ave
Appleton, WI
 
Best Buy
7021 120Th Ave
Kenosha, WI
 
Custom Designed Lighting Sound and Video
(414) 744-0782
2273 S Howell Ave
Milwaukee, WI
Services
Pro Audio, Lighting, Video, Design, Installation, Service, Rental, DJ Equipment

University Audio
(608) 284-0001
402 South Park Street
Madison, WI
 
DaVinci Media
(414) 479-1829
108 W. Wells Street #2A
Milwaukee, WI
Services
Home Audio, Design & Installation, Appointment Only

Best Buy
(920) 424-8079
1550 S Koeller St
Neenah, WI
 

pass250

POSITIVE FEEDBACK ONLINE - ISSUE 6

pass labs

X250 stereo amplifier

as reviewed by Mark Katz

pass9.jpg (35267 bytes)

Photos taken by Dave Clark in his system

   

The Pass X250 is the 2nd from the bottom of the Pass X series amp line. The smallest is the not so small X150, at 150 watts/channel and at the top are the 1000 watt per monobloc X1000 amps. These amps succeed the excellent Aleph series. The X250 weighs in at 100 pounds, but can be carried by two people with the help of the rear mounted handles. The front has a circular power switch and an attractive blue glowing meter that I believe conveys how much current the amp needs to draw. Wing-like protrusions that can be used as handles surround the meter and the whole amp has a brushed silver look. The back of this rather hefty stereo amp sports both single ended and balanced inputs and clever, large binding posts that are very easy to hand tighten. The binding posts are good for spades, but can’t be used on bananas since there’s nowhere to plug them. Also on the back is the obligatory IEC receptacle for the power cord, and the main power switch. The amp’s operation is intuitive. The manual gives the Nelson Pass design philosophy of low noise, very low distortion, achievable with only 2 stages of amplification and low global feedback using "Supersymmetry" and balanced circuitry. His discussion of distortion minimization makes good reading – in the user’s manual http://www.passlabs.com/pdf/x250man.pdf . Of course, the proof is in the implementation

pass8.jpg (36466 bytes)

I unplugged the Kora Cosmos amps and plugged the Pass X250 directly into a dedicated 20 amp outlet using a fairly hefty Tiff power cord. The rest of the system used included a CEC TL1 transport with Marigo Signature digital interconnect into an Audio Magic modified Kora Hermes 192/24 tubed DAC, Kora Eclipse tubed preamp hooked together with Goertz Triode interconnects. The amp drove the JM Labs Mezzo Utopias, a fairly flat 4 ohm, efficient load through shot-gunned (one run on each terminal) Kimber 8TC. The low powered equipment was plugged into an API Powerwedge 116 II, with the preamp into a non transformer filtered outlet. The amp changed the character of my system. Gone was the seductive sound of the Kora Cosmos, in came POWER. The first thing I noticed was a sense of the music becoming more dynamic. On my speakers, it seemed effortless and amazingly energetic. It sounded as if the dynamics of the performances were brought closer to the original. With the possible exception of very high efficiency horn speakers, dynamics of the music reproduced is markedly diminished compared to the original. Many people deride this type of speakers for poor tonal balance and a honky, "cupped hand" sound and with a few exceptions, they’re right. Despite this they can convey lively dynamics that would otherwise be far more compressed on more "audiophile approved" speakers....

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