In – and Outputs
The V 80 features a total of seven single-ended (RCA) inputs - including the Home Theatre Bypass input) and one balanced (XLR) input. One RCA input can fitted with the optional (either MM or MC) Phono Input Board. Outputs included are one RCA Record output, one regulated Preamplifier output, one Headphone output and one Loudspeaker output. The V 80 is equipped with a separate Headphone Amplifier, and the Loudspeaker and Headphone outputs can be switched independently. The pre- and power amplifier sections of the V 80 can be operated independently from each other as well.

Black Box Connector
OCTAVE, with the Black Box technology, offers an upgrade path for optimizing the OCTAVE amplifier in respect to the speaker. This flexibility is a unique feature of the OCTAVE brand.

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 by increasing their capacitance by a factor of 4 (Black Box) or 10 (Super Black Box), respectively. 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 forward looking 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. This electronic system controls the power condition and reduces power consumption when the amplifier does not receive a signal for a period exceeding 10 minutes. In this “sleep” mode, the V 80 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 80, 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. Ecomode also serves to increase the lifetime of the tubes, while having an added benefit of improved safety allowing the V 80 owner a level of security against any problems when leaving the unit powered on.

BIAS Adjustment
The Output stage of the V 80 operates in Class A/B, and therefore requires an adjustable BIAS regulation. The highly sophisticated yet extremely simple yet accurate BIAS calibration system is accessed on the front panel of the unit. It utilizes external precision bias trim pots and 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 let alone any special knowledge or tools.

The correct BIAS is vital for the constant sound quality of the V 80. Due to this facility there is no need for a technician to service the V 80 for changing or tubes or to check their condition. The precision of this user friendly system is within 0.5% accuracy.

Power Management and Protection System
The V 80 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 80 completely, and activated whenever a malfunction is detected. Once the Protection is activated, the V 80 is powered down.

Basic Model : V 80 Line, optional Phono MM or MC
Tube Complement : 4 x 6550 or optional KT 88
Design : Aluminium silver or Aluminium black
Add On Modules : Black-Box and Super Black Box

Power Output : 2 x 75 W continuous, 80 W Peak into 4 Ohm
Frequency Response : 10 Hz - 80 kHz / ± 0,5 dB
Total Harmonic Distortion : < 0,1% @ 10 W into 4 Ohm
Signal-to-Noise Ratio : > 100 dB
Minimum Speaker Impedance : 2 Ohm
Connections : 1 x XLR, 6 x Cinch, (1 x Phono, 1 x Home Theatre pass-through)

Preamplifier
Input Sensitivity : 230 mV Cinch + XLR
Input Impedance : 40 kOhm Cinch; 25 kOhm XLR
Channel Balance : 0,5 dB bis - 70 dB from Volumeadjuster
Left/Right Crosstalk : 60 dB

Phono
Input Impedance : MC 500 Ohm, MM 47 kOhm
Signal-to-Noise Ratio : MC 75 dB, MM 90 dB
Input Sensitivity : MC 0.5 mV, MM 4 mV
Subsonic Filter : -12dB/ oct. 20Hz corner frequency

General Facts
Power Consumption : < 20 W Ecomode, 160 W idle, 400 W at full power
Weight : 23 kg
Main Fuse : 230/240 V Mains: 3,15 A slow-blow typ
Dimensions (in mm) : 

Formats
CD Formats : Red Book
Audio Formats : WAV, AIFF, FLAC, ALAC, OGG Vorbis, AAC, Windows Media-formatted content files, MP3
Internet Radio Provider : vTuner 
Disc Compatability : CD, CD-R, CD-RW

User Control
Front Panel : Touch-sensitive eject and shutdown mode function
TV Monitor : 4:3 and 16:9 customisable TV interface USB touch screen compatible
Web Interface : PC and Mac internet browser compatible Adobe Flash user interface
AMX Creston : Installer-customisable reference apps available
Handheld : User interface app for iPhone and iPod Touch devices

Streaming and Ripping
USB : Scan and play from FAT and NTFS formatted memory sticks
Network Shares : Scan and play from music stored on a network share
Network Storage : Rip to external network storage for expanded music storage
CD Metadata : AllMusic.com online, FreeDB online and local database
StreamNet : 6 user streams to NaimNet and NetStreams systems

Power
Supply Voltage : 100V-230V; 50 or 60Hz

Formats
CD Formats Red Book
Disc Compatability CD, CD-R

User Control
Front Panel Seven button matrix
Handheld R-Com

Power
Power Supply Options 555PS, 2 x 555PS

Upgrades
Power Supply 555 PS
Other NAC 252, 552 PS, NAP 500, 500 PS