Class-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.
In 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.
After extensive development, a new amplifier concept was created:
The V 70 Class A, a Class A push-pull amplifier in a pentode circuit.
For this, a new Class A technology had to be developed:
The Dynamic Bias Control
Dynamic 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.
This technology combines the tonal purity of Class A with the dynamics and performance of push-pull A / B technology.
The 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.
The 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.
In 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.
Similar 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.
Octave 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).
Our 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.
With the V 70 Class A we have the line of the legendary powerful Octave integrated amplifiers
extended by a highly musical Class A concept.
Anonymous –
RecMar® Turbo for YANMAR MY29 replaces 129497-18000 Poseidon Marine
Windshield Window Visor Sun Shade Cover for Pontiac Sunrunner 1992, 1993, 1994, 1995, 1996, 1997, 1998 TrueLine Automotive
Black V-Neck Ruffle Trim Dress Culture Code
OFFICIAL HANDBOOK OF THE MARVEL UNIVERSE MASTER EDITION (1990) #21 MARVEL COMICS
Battery for GIONEE Elife S6 BL-N3150 3.85V Li-Polymer 3050mAh / 11.74Wh Cameron Sino
STANDARD 606 HYGRADE CARBURETOR STANDARD
091 – Kiki's Car | Koko & Claire Gel Polish Koko & Claire
StringKing Complete 2 Pro Defense Tech Trad Women's Lacrosse Stick StringKing
Personalized Hindi Name Bracelet Handmado
Sterling Silver Ring Qgold
14k White Gold 2mm Diamond-cut Endless Hoop Earrings Qgold
Cycli Infini SOUNDWAY RECORDS LIMITED
GATES G60490-0604 6MJ-4MP BRISTOL AUTOMOTIVE PARTS
Nuclear Explosion Playmat Bag Carbon Beaver
BATMAN NEVERMORE #4 DC COMICS
AIRTEX E2067 ELECTRIC FUEL PUMP AIRTEX
2-Pack Sears / Kenmore 10651262105 Refrigerator Water Filter Replacement Denali Pure
Botanical Female Complex 30 Capsulas | Solgar Solgar
CANDLE, SWEETHEART XS WHITE INDABA TRADING LTD.
BROOKLYN GLADIATOR #4 HEAVY METAL MAGAZINE
14K White Gold Wheat Chain, 1.3 mm Qgold
Amethyst Solid Round Studs – February Birthstone Moon Magic
Sterling Silver Polished Filigree Butterfly Pendant Qgold
Battery for JVC GR-DVL140 BN-V428, BN-V428U, BN-V438, BN-V438U 7.4V Li-ion 3300m Cameron Sino
Fall for Me As You Are Bracelet Little Words Project