Octave V40SE Tube Integrated Amplifier - EXCELLENT - SILVER



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PERFECT - LOW TIME TRADE - UNDER 1 YEAR - MADE IN GERMANY 

SILVER - AS NEW - UPGRADED GOLD LION KT88 TUBES (less than 20hrs on tubes)

The V 40 SE is a line level integrated amplifier with 2 x 40 W peak output power. It is a further development and direct descendant of the successful V 40 and V 50 amplifiers. The powerful, clear bass fundamentals and captivating resolution in the high frequencies win much respect. Unique features lift the V 40 SE into the 21st Century, while performance earned it the rare “Stereoplay Highlight” (2009), a prestigious award bestowed by the German high-end audio magazine Stereoplay.

The V 40 SE output stage consists of two power pentodes (Type 6550) for each channel. Due to the BIAS Control and Monitoring System, use of other pin-compatible output tubes is possible to match the amplifier to personal taste, or to benefit from new or improved tubes.

Like all OCTAVE Amps the, V 40 SE is based on the enhanced pentode configuration. This ensures absolute stability of the amplifier against the unstable impedance of the loudspeaker. Impedance mismatch is without consequence, and the V 40 SE is stable down to a 2 Ohm Load. An important contributor to this stability is the single impedance output transformer.

This is the perfect amp for speakers with an average efficiency rating. Not only is the low impedance capability an advantage, with exceptional Signal-to-Noise ratio of –110dB/Full Power it is also an ideal partner for high efficiency loudspeakers.

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In and Outputs - The V 40 SE features a total of five single-ended (RCA) inputs (including the Home Theatre Bypass input). Outputs included are one RCA Record output, one regulated Preamplifier output and one Loudspeaker output.

Black Box Connector - OCTAVE, with the Black Box technology, offers an upgrade path for optimizing the OCTAVE amplifier in respect to the speaker. The dynamic and tonal stability of an amplifier is strongly dependent upon the stability and capacity of the power supply, therefore the Black Box and Super Black Box were developed as external upgrades to the OCTAVE amplifiers’ power supply storage capacitors. This is a tremendous benefit if the speaker is difficult to drive. Loudspeaker efficiency is made less critical, while the amplifier is enabled to handle speakers with extremely low minimum impedances.   

Ecomode - A feature of OCTAVE is the unique ECOMODE power saving electronic circuitry developed to reduce heat and unnecessary power consumption when the amplifier is switched on but not in use for a period exceeding 10 minutes. In this “sleep” mode, the V 40 SE draws only 20 W idle current. Virtually no heat is produced by the unit, and the heater voltage and the high voltage for the power amplifier section are switched off. When a signal is detected by the V 40 SE, the Ecomode circuit will turn the amplifier back on, with a warm-up/start-up delay of approximately 30 seconds before the unit will operate. 

BIAS Adjustment - The Output stage of the V 40 SE operates in Class A/B, and therefore requires an adjustable BIAS regulation. The highly sophisticated yet extremely simple and accurate BIAS calibration system is accessed on the front panel of the unit. It utilizes LED confirmation, allowing the user to readily monitor the output tubes and simply correct their bias individually at the front panel - without the need of a micrometer. The correct BIAS is vital for the constant sound quality of the V 40 SE.

Power Management and Protection System - The V 40 SE is equipped with a multi-stage Soft-Start/Turn-On protection circuit which extends component as well as tube life considerably by protecting against stress caused by typical high inrush currents during switch-on. The unit starts in a defined sequence, with the Protection System monitoring the V 40 SE completely, and activated whenever a malfunction is detected. Once the Protection is activated, the V 40 SE is powered down.

 

  • Power Output 2 x 40 Watt into 4 Ohm
  • Frequency Response 20 Hz – 70 kHz @ 40 W -1 / -3 dB 5 Hz – 70 kHz @ 10 W -0 / -2 dB
  • Total Harmonic Distortion < 0,1% @ 10 Watt into 4 Ohm invi Signal-to-Noise Ratio -110 dB / 40 W
  • Noise / Ripple < 300 μV invi Optimum Speaker Impedance 3 – 16 Ohm
  • Minimum Speaker Impedance 2 Ohm
  • No-load current 28 mA - BIAS low, 34 mA - BIAS high
  • Connections Inputs: 4 x Line Level (Cinch) Outputs:1 x Tape Pre-Out and Main-In
  • Features ECO Mode, Bias Adjustment, Power Management Configuration
  • Push Pull Pentode Circuit
  • Negative Grid Voltage adjustable for each tube with 3 turn Precision Regulators, Wideband Output Transformers using Silicon steel PMZ Core, single Impedance Output, Optimum Load Impedance 3 - 10 Ohm Nominal Speaker Impedance, Effieciency greater than 85dB, Amplifier remains stable with No Load and Output short circuited

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