System Audio 1070 loudspeaker Measurements
Sidebar 3: Measurements
The floorstanding 1070 was sensitive, at an estimated 89dB(B)/2.83V/m. However, with an impedance plot (fig.1) that dropped to just below 4 ohms in the middle of the midrange, it will need to be driven by a good solid-state amplifier or a tube amplifier with a generously specified 4-ohm output tap.
System Audio 1070 loudspeaker Associated Equipment
Sidebar 2: Associated Equipment
Sources: PS Audio Lambda 2 CD transport, Threshold T-1D DAC, RadioShack CD3400 CD player, Marantz CC-48 CD changer, Marantz DVD810 DVD player, Randy Tomlinsonmodified JVC XLZ-1010TN CD player, McIntosh MR-78 tuner.
Preamplifiers: Audio Research SP14, Threshold T3i, Chase Technologies RLC-1, Sumo Athena.
Power Amplifiers: Dynaco Stereo 70,
System Audio 1070 loudspeaker Specifications
Sidebar 2: Specifications
Description: Two-way, twin-ported, 4-chamber Chebychev-aligned loudspeaker. Driver complement: one System Audio "SpeedStar 2000" double-magnet 1" fabric-dome tweeter; two 5" System Audio "BIG 15" bass/midrange drivers. Crossover frequency: 3.3kHz. Crossover slopes: 18dB/octave. Frequency response: 35Hz30kHz, ±4dB. Nominal impedance: 4 ohms. Sensitivity: 90dB/W/m. Power handling: 170W. Minimum recommended amplifier power: 50W.
Dimensions: 44" (1102mm) H by 13.5" (275mm) D by 6.75" (170mm) W.
The Best Jazz Recordings of 2013
As usual around this time of year, I have a column in Slate (where I usually write about foreign and military policy), listing my picks for the 10 best jazz albums of the year and, in this case, the two best jazz reissues.
Meet Mat Weisfeld, President of VPI Industries
Earlier this month, our all-analog coverage counterpart AnalogPlanet announced the release of the Nomad, a brand new entry-level turntable from American hi-fi manufacturer VPI Industries. For $995, The VPI Industries Nomad turntable includes a built-in phono preamplifier, unbalanced output, a set of Grado Labs iGrado around-the-neck headphones, headphone output, and an Ortofon 2M Red cartridge.
System Audio 1070 loudspeaker
The Fifth Element #82 Contacts
Cardas Audio, Ltd., 480 11th Street SE, Bandon, OR 97411. Tel: (541) 347-2484. Web: www.cardas.com.
Lindell Audio, Utmarksvägen 6, 44239 Kungälv, Sweden. Tel: (46) 735-35-89-79. Web: www.lindellaudio.se. US distributor: RAD Distribution, PO Box 748. Tallman, NY 10982. Tel: (914) 523-5247. Web: www.raddist.com.
Shunyata Research, 26273 Twelve Trees Lane, Suite D, Poulsbo, WA 98370. Tel: (360) 598-9935.
The Fifth Element #82 Page 2
I put the AMPX into the system I wrote about in my August 2013 columnParasound Halo CD 1 CD player, Bricasti M1 DAC, Opera Callas speakerschecked all the connections, turned down the volume on the Bricasti, and pressed the AMPX's power switch.
The Fifth Element #82
Recordings for the Holidays!
Audio Beginnings Page 2
So John, my parents, and I cobbled together $7500 and Illuminati was born. Our first marketing idea was a truly hideous direct-mail brochureI saw one when I moved some boxes recently and I was so embarrassed. We bought 6000 addresses from Stereophile and we stuffed envelopes for days. We got 25 checks and I felt on top of the world.
That first connector design failed, on a physical level, so I had to replace every one of 'em. That whole time, I was working other jobs and doing Illuminati stuff at night.