{"product_id":"octavev70a","title":"Octave V70 Class A Integrated Amplifier","description":"\u003cdiv class=\"prod-tab\"\u003e\n\u003ch2\u003eGOLDEN EAR 2021 - 1st place\u003c\/h2\u003e\n\u003cp\u003eVoted 1st in the highly regarded German hifi-magazine stereoplay Golden Ear Awards 2021.\u003c\/p\u003e\n\u003ch2\u003eProduct Infortmation\u003c\/h2\u003e\n\u003cp\u003eClass-A. A circuit concept that has bewitching midrange in both push-pull and single-ended amplifiers due to the low distortion. But unfortunately it is paired with low power, dynamics and excessive heating of the amplifier. Features that do not match the product profile of our popular integrated amplifiers 100%. It was therefore important to develop a concept that would bring the undisputed tonal advantages of this principle to life.\u003c\/p\u003e\n\u003cp\u003eIn short, a Class A concept technically means a higher quiescent current setting and therefore less distortion (almost only second-order harmonics, referred to as k2), but also a limited full modulation with less power. Push-pull concepts, on the other hand, can deliver 4-16 times the output power compared to Class-A, but lack with inharmonic distortions (i.e. odd harmonics k3 and k5). Two soundscapes with followers on both sides. Of course, Andreas Hofmann was tempted to combine both concepts into something new.\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cstrong\u003eAfter extensive development, a new amplifier concept was created:\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003eThe V 70 Class A, a Class A push-pull amplifier in a pentode circuit.\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cstrong\u003eFor this, a new Class A technology had to be developed:\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Dynamic Bias Control\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Bias Control means that Andreas Hofmann has found ways to dynamically shift the limited dynamic range, and thus the limited power of the Class A concept, according to the requirements. The development of the dynamic operating point setting enabled a self-regulating Class A amplifier with approximately twice the output power of 50 W RMS with up to 70 W (with Super Black Box) peak power.\u003c\/p\u003e\n\u003cp\u003eThis technology combines the tonal purity of Class A with the dynamics and performance of push-pull A \/ B technology.\u003c\/p\u003e\n\u003cp\u003eThe modern concept of a Class-A push-pull amplifier in a pentode circuit makes it possible to guarantee the Class-A virtues over the entire frequency response up to maximum modulation. The enormous power, with up to 70 watts peak power, is significantly above the performance level of conventional Class A amplifiers and is more than sufficient for most speakers.\u003c\/p\u003e\n\u003cp\u003eThe integrated amplifier is equipped with a balanced input as standard. If a turntable is connected, the optional phono board (either MC or MM) offers the right solution.\u003c\/p\u003e\n\u003cp\u003eIn the case of the V 70 Class A, an auto-bias circuit is used. The amplifier adjusts itself to the tube used and does not require any adjustment controls. The proven BIAS measurement with the colored LEDs is still available, however, only to check that the four output tubes are working properly.\u003c\/p\u003e\n\u003cp\u003eSimilar to the other top models from Octave, the V 70 Class A also has the power preselection, Power High and Low, so that the device can be optimally adapted to different power tubes. Due to the high power in Class A operation, a KT 120 or KT 150 tube must be used for Power High. Less powerful KT88 or 6550 types should be operated at Power Low. Around 15 W Class A and 25 W music power are still available.\u003c\/p\u003e\n\u003cp\u003eOctave typical measures, such as the power management with electronic monitoring are integrated as well as the ECO mode, the modern home theater bypass circuit and the useful regulated preamp output (for direct connection of a subwoofer).\u003c\/p\u003e\n\u003cp\u003eTheir special power supply technology protects the amplifier against various types of mains interference. Mains fluctuations and high-frequency mains disturbances do not cause any sonic deterioration.\u003c\/p\u003e\n\u003cp\u003eWith the V 70 Class A we have the line of the legendary powerful Octave integrated amplifiers extended by a highly musical Class A concept.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower Output         \u003cul\u003e\u003cli\u003e2 x 50 W continuous, 70 W Peak into 4 Ohm\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency Response         \u003cul\u003e\u003cli\u003e20 Hz - 70 kHz @ 50 W - 1 \/ -3 dB\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion\u003cul\u003e\u003cli\u003e\u0026lt; 0,1% @ 10 W into 4 Ohm\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSignal-to-Noise Ratio         \u003cul\u003e\u003cli\u003e- 100 dB \/ 50 W\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptimal Load Impedance         \u003cul\u003e\u003cli\u003e4 - 16 Ohms\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDamping factor         \u003cul\u003e\u003cli\u003e5 @ 8 Ohms\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnections         \u003cul\u003e\n\u003cli\u003eInputs: 5 x Line Level \/ RCA, 1 x Bypass-Function \/ RCA\u003c\/li\u003e\n\u003cli\u003e1 x Phono optional \/ RCA\u003c\/li\u003e\n\u003cli\u003e1 x XLR Input\u003c\/li\u003e\n\u003cli\u003eOutputs: 1 x Rec Out \/ RCA, Pre-Out adjustable \/ RCA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eFeatures         \u003cul\u003e\u003cli\u003eODT \/ Octave Dynamic Technologies, ECO Mode, Power Management\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePreamplifier\u003c\/strong\u003e               \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInput Sensitivity \/ MED\u003cul\u003e\u003cli\u003e300 mV RCA     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eInput Impedance\u003cul\u003e\u003cli\u003e50 kOhm \/ RCA, 25kOhm \/ XLR     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeft\/Right Crosstalk\u003cul\u003e\u003cli\u003e55 dB     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eInput to Input Crosstalk\u003cul\u003e\u003cli\u003e- 105 dB     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput Impedance Pre Out\u003cul\u003e\u003cli\u003e240 Ohm     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eMax. Level Pre Out\u003cul\u003e\u003cli\u003e5 V eff.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTube Complement Preamplifier   \u003c\/strong\u003e            \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDriver tubes\u003cul\u003e\u003cli\u003e1 x ECC 83, 2 x ECC 81     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eGain\u003cul\u003e\u003cli\u003e35dB\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDamping factor\u003cul\u003e\u003cli\u003e5\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral Facts    \u003c\/strong\u003e           \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower Comsumption         \u003cul\u003e\u003cli\u003e\u0026lt; 20 W Ecomode, 190 W idle, 500 W @ full power\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight\u003cul\u003e\u003cli\u003e23 kg     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eStandard Accessory\u003cul\u003e\u003cli\u003ePower cord, IR-Remote Control, Allen key for removing the cover     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eMain Fuse\u003cul\u003e\u003cli\u003e230\/240 V main: 4 A slow-blow type H     \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions\u003cul\u003e\u003cli\u003e451 x 175 x 405 mm (W x H x D)\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Octave","offers":[{"title":"Black Box \/ None","offer_id":52740261511434,"sku":"OCTAVE-6573","price":10440.0,"currency_code":"GBP","in_stock":true},{"title":"None \/ None","offer_id":52740261544202,"sku":"OCTAVE-6574","price":9350.0,"currency_code":"GBP","in_stock":true},{"title":"Super Black Box \/ None","offer_id":52740261576970,"sku":"OCTAVE-6575","price":12100.0,"currency_code":"GBP","in_stock":true},{"title":"Black Box \/ MC Phono","offer_id":52740261609738,"sku":"OCTAVE-6576","price":11139.0,"currency_code":"GBP","in_stock":true},{"title":"None \/ MC Phono","offer_id":52740261642506,"sku":"OCTAVE-6577","price":10049.0,"currency_code":"GBP","in_stock":true},{"title":"Super Black Box \/ MC Phono","offer_id":52740261675274,"sku":"OCTAVE-6578","price":12799.0,"currency_code":"GBP","in_stock":true},{"title":"Black Box \/ MM Phono","offer_id":52740261708042,"sku":"OCTAVE-6579","price":11139.0,"currency_code":"GBP","in_stock":true},{"title":"None \/ MM Phono","offer_id":52740261740810,"sku":"OCTAVE-6580","price":10049.0,"currency_code":"GBP","in_stock":true},{"title":"Super Black Box \/ MM Phono","offer_id":52740261773578,"sku":"OCTAVE-6581","price":12799.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/octave-v70-class-a-integrated-amplifier-26834-p.png?v=1773934723","url":"https:\/\/audioemotion.co.uk\/products\/octavev70a","provider":"Audio Emotion Limited","version":"1.0","type":"link"}