Telos 250

Telos 250 - Power Amplifier

The Goldmund Telos 250 is the new mono amplifier of the Goldmund line that replaces the Telos 200. It features a new and larger aluminum chassis with better Mechanical Grounding, offers a higher power and uses the new capacitors developed from the Telos 5000 to considerably improve its Driver Control. It includes a Telos circuit and built in digital input, a built in D/A Alize 5 converter.

A new look: its radiator located all along the right side of the unit gives it a brand new look but you will notice that the front panel remains faithful to the "face" of the Telos 200. Its chassis is fully built in aluminum. Since the mechanical assembly of the Telos 200 is fully automated, the unit shows an incredibly precise joint positioning and the visual perfection required in all high end components.

Ultra-high speed like all the Telos Amplifiers: DC to 2MHz bandwidth at full power before protection.

Unique circuit time accuracy: better than 100ps. A unique figure in the industry. Time distortion remains the most detrimental type of distortion introduced by analogue electronics, because it represents a form of signal degradation that does not exist in real life. This figure is rarely published by high-end audio manufacturers due to the poor results achieved by most designs today.

Thermal Grounding construction: the power output Mosfets are assembled on a large aluminum heat-transmitter to achieve an ultra-fast heat transfer and so limit temperature-related dynamic losses. The isolators used are in specially-treated Kapton, the thinnest and best isolators providing the highest thermal transfer rate.

Ultra-fast power supply design: 4 built-in high-speed transformers, new rectifiers and low impedance capacitors are used in the design in order to provide the fastest possible signal amplification without power-supply-induced contamination.

Signal Sensing auto power on with soft start to avoid power surges in multi-amp systems. Ultra-safe operation controlled by processor for glitch avoidance.

Goldmund Speaker cable coaxial connector in addition to the traditional 5-way post.

Built-in digital to analogue converter of Alize 5 technology with separate digital output to link 2 amplifiers on a single Spdif cable.

TELOS 250: Mono Power Amplifier

  • SAFETY FEATURES
    • AC voltage fuse: min 16 A slow-blow
  • FRONT PANEL CONTROLS
    • 1 control key (Muting/Standby and 2 sec tempo for ON/OFF)
    • Red led display for Over-heating, DC offset or HF protection and Overload
    • Green led display for Power ON, operating mode (blinking in standby)
    • Yellow led display for signal connection and digital Lock
  • REAR PANEL CONNECTORS AND CONTROLS
    • Power cord: universal socket 3 lugs
    • Main fuse (16 A slow-blow)
    • Green-yellow AC earth binding post
    • Output speaker 1 x 5 ways post in parallel
    • Output speaker 1 x Coaxial connectors in parallel
    • Analog Input connector RCA
    • Digital Spdif input and output RCA connector
    • Input connector XLR for analog balanced input
    • Switch between analog or digital input
    • Switch right or left channel selection from the Spdif input
  • POWER
    • Maximum instantaneous power: 300 W RMS on 8 Ohms
    • Nominal line voltage: 117, 234 V (selectable internally)
    • Input voltage range: +/- 10 %
    • Maximum power consumption: 1000 W
    • Power used in standby: 60 W
    • 4 toroidal transformers
    • 4 separated power supplies rails
  • FREQUENCY RESPONSE
    • +/- 0.1 dB, 0 - 300 kHz, +/- 1 dB, 0 - 1000 kHz. +/- 3 dB, 0 - 3 MHz
  • INPUT SENSITIVITY
    • Nominal level: 1.45 V RMS
    • Voltage Gain: 28.2 (29dB)
    • Input impedance > 50 kOhms
  • DISTORTION
    • Figures valid for all levels from 0 to 40 V / 8 Ohms:
    • Dynamic: TID < 0.01 % (- 80 dB) unweighted
    • Static: THD < 0.01 % (- 80 dB) unweighted
  • SPEED
    • Slew rate: > 400 V/us
    • Rise time: < 300 ns
  • OPERATING TEMPERATURE
    • Room temperature: -30 to +40 degrees Celsius (-22 to +104 degrees Fahrenheit)
    • Internal temperature: +45 to +65 degrees Celsius (+113 to +149 degrees Fahrenheit)
  • SIZE AND WEIGHT
    • 320W x 310D x 220H (mm)
    • Weight: 18 kg net
  • WARRANTY
    • 3 years parts and labor
Download User Manual