EVO 400 真空管合併式擴音機

輸出功率(五極) 每聲道70瓦[EL34]
輸出功率(三極) 每聲道38瓦[EL34]
頻率響應 9赫茲 - 50千赫茲 +/- 1分貝
8赫茲 - 68千赫茲 +/- 3分貝
增益 37分貝
總諧波失真 小於0.1%@1瓦﹔額定功率小於2%
訊噪比 90分貝(98dBA)
輸出阻抗 4歐姆和8歐姆
輸入靈敏度 320毫伏(最高音量設定)
輸入阻抗 100千歐姆
輸入接口 5組立體聲RCA輸入
輸出接口 1組立體聲RCA錄音輸出,4歐姆和8歐姆喇叭接線柱耳機插頭,1組立體聲/單聲道重低音輸出
外形尺寸 205 x 385 x 405亳米(高 x 寬 x 深)
淨重 31公斤


PrimaLuna EVO Tube Integrated amplifiers feature:


  • Hand-made construction of a heavy-gauge, fully-vented steel chassis with a five coat finish, each coat hand-rubbed and polished, holding the finest point-to-point wiring, using workmanship that is normally only available at the highest price.
  • Elegant style, heavy-metal remote controls.
  • Premium parts that include toroidal and EI transformers for power supply; custom designed -in conjunction with one of the most prestigious transformer designers in the USA- encapsulated output transformers for lowest hum; wide bandwidth for great bass and extended highs; ceramic tube sockets; ALPS volume control; Nichicon and DuRoch capacitors; superfast Philips-rectifier-circuitry; gold-plated heavy-duty WBT style speaker terminals (all speaker connectors are solid shaft for better conductance, better sound, and higher reliability); gold-plated panel mounted RCA input jacks.
  • Each EVO Tube Integrated Amplifier is as well a high-quality EVO Tube Headphone Amplifier!
  • A 100% shielded Phono chassis for mounting our optional MM PhonoLogue circuit.
  • SoftStart™ circuit for extended life of sensitive components, plus a reduced chance of tube failure from thermal shock.
  • The newest generation Adaptive Auto Bias™ exclusive to PrimaLuna. This circuit monitors and smoothly adjusts bias constantly and instantly, reducing maintenance and increasing performance due to the dramatic reduction in distortion. It comes with a new extensive output stage protection circuitry with +B relay to protect output transformers, resistors and high voltage power supply in case a tube fails.
  • The EVO Tube Integrated Amplifiers come with a High/Low bias switch. This means that with the flip of a switch you can choose for the optimum bias setting for EL34 type of tubes or KT88 type of tubes. No hassle with screwdrivers, no messing around with meters etc. Just switch tubes, switch bias!
  • All PrimaLuna power transformers include the  PTP™ (Power Transformer Protection) circuit. When the power transformer overheats due to environmental circumstances, overloading or some problem in the unit, an internal thermal switch breaks the primary, allowing the unit to cool down before harm is done. After it’s cooled, contact is restored and if nothing is broken, the amp will repower and function properly.
  • LIVE side of the AC input connector indicated by aluminium color screw.