{"product_id":"jeff-rowland-concentra-ii","title":"Jeff Rowland Concentra II","description":"\u003cp\u003eStereo Integrated Amplifier with Phonostage  The Concentra II is a blend of control and power. The Concentra IIs power supply borrows design and technology from the Model 112 Stereo Amplifier, raising power output to 150 watts per channel to create more authoritative and effortless rhythm and timing while still maintaining the natural musical presentation.  Artistry, grace, and function remain the basic tenets of the exterior form. The timeless design of the Concentra II incorporates features to soothe the senses; the placid blue display, the gentle fluidity of the volume control, and the smooth curves of the non-resonant chassis combine to form an engaging whole that stimulates the visual and tactile senses as much as the aural; yet the sculpted exterior is still adept at performing the essential functions demanded of it by high performance: heat dissipation, resonance control, and isolation.  From the quiet opening notes of a jazz ballad through the power of a choral crescendo to the dynamics and punch of live blues, the Concentra II maintains the place established by its predecessor in the growing crowd of integrated amplifiers.\u003c\/p\u003e\n\n\u003cp\u003eDimensions (W x H x D \/ mm): 445 x 146 x 362 Weight: 23 Kg Output: 150W + 150W (8 ohm), 250W + 250W (4 ohm) BANDWIDTH: 0.1 Hz to 160 kHz, -3 dB SLEW RATE: 30 volts per microsecond THD AND NOISE: less than 0.01% at rated power DAMPING FACTOR:\u0026gt; 60, 20 Hz to 20 kHz GAIN STRUCTURE: 14 dB Preamplifier section 26 dB Amplifier section VOLUME CONTROL RANGE: 99.5 dB VOLUME CONTROL RESOLUTION: 0.5 dB + \/ - 0.05 dB over entire range Input impedance: 36 kohms Balanced or Unbalanced COMMON MODE REJECTION RATIO: greater than 60 dB, 20 Hz to 20 kHz Power consumption: 150 watts idle; 550 watts maximum Input: Balanced 3 x XLR per channel Unbalanced 3 x RCA per channel Output: 1 pair 5-way binding posts per channel 1 pair balanced pre-out via XLR 1 pair unbalanced pre-out via RCA\u003c\/p\u003e","brand":"Jeff Rowland","offers":[{"title":"Default Title","offer_id":59370714923353,"sku":"2317","price":4190.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/5721\/8905\/files\/jeff-rowland-concentra-ii-1.jpg?v=1789119005","url":"https:\/\/wenwaudio.com\/products\/jeff-rowland-concentra-ii","provider":"W\u0026WAudio","version":"1.0","type":"link"}