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Goldmund Telos 690 Integrated Amplifier

$0.00

A World of Sonic Possibilities

The Telos 690 integrated stereo power amplifier was conceived to provide an audiophile-grade amplification option that embodies Goldmund’s iconic sound signature. Designed for those who seek exceptional performance from their analogue sound system in simpler system setups, the Telos 690 meets the highest standards in a simplified configuration.

The Heartbeat of Innovation

What sets our amplifiers apart is our proprietary Telos® amplifier technology, first introduced in the 1990s and continuously refined since. Telos® amplification operates in Class A/B, utilizing highly linear analog components combined with a high-bandwidth circuit.

Your Gateway to Sonic Bliss

Telos® amplifiers exert precise control over speaker drivers, delivering clean, ample power while preventing unwanted noise that can compromise signal integrity. This control is especially critical in low frequencies, where woofer diaphragms exhibit greater movement, increasing the risk of distortion and unwanted vibrations. By drastically lowering output impedance, Telos® enhances micro-dynamics and prevents large woofer overshoots during high-power conditions—eliminating uncontrolled bass and maintaining absolute sonic transparency.

The Hi-Fi Standard

Unlike many amplifiers that lose clarity or introduce subtle distortion at lower volumes, Telos® ensures sound remains perfectly transparent, detailed, clear, dynamic, and virtually distortion-free across the entire frequency range. Whether playing at a whisper or full concert intensity, it faithfully reproduces the purity of the original signal—without compromise. Telos® significantly reduces harmonic and intermodulation distortions by optimizing linearity in each amplification stage. By isolating high and low-current circuits, it prevents unwanted feedback and interference while improving Mechanical Grounding™.

Audio Mastery in Every Note

The amplifier features our new power supply unit (PSU), redesigned for greater efficiency, higher power output, and a new power supply board providing greater energy reserves. A smooth transient response between low and high sonic levels enhances dynamic range and allows precise handling of rapid volume changes. Capacitor power banks were specifically tailored for stereo amplification.

If you are interested in the Telos 690 please contact us HERE

A World of Sonic Possibilities

The Telos 690 integrated stereo power amplifier was conceived to provide an audiophile-grade amplification option that embodies Goldmund’s iconic sound signature. Designed for those who seek exceptional performance from their analogue sound system in simpler system setups, the Telos 690 meets the highest standards in a simplified configuration.

The Heartbeat of Innovation

What sets our amplifiers apart is our proprietary Telos® amplifier technology, first introduced in the 1990s and continuously refined since. Telos® amplification operates in Class A/B, utilizing highly linear analog components combined with a high-bandwidth circuit.

Your Gateway to Sonic Bliss

Telos® amplifiers exert precise control over speaker drivers, delivering clean, ample power while preventing unwanted noise that can compromise signal integrity. This control is especially critical in low frequencies, where woofer diaphragms exhibit greater movement, increasing the risk of distortion and unwanted vibrations. By drastically lowering output impedance, Telos® enhances micro-dynamics and prevents large woofer overshoots during high-power conditions—eliminating uncontrolled bass and maintaining absolute sonic transparency.

The Hi-Fi Standard

Unlike many amplifiers that lose clarity or introduce subtle distortion at lower volumes, Telos® ensures sound remains perfectly transparent, detailed, clear, dynamic, and virtually distortion-free across the entire frequency range. Whether playing at a whisper or full concert intensity, it faithfully reproduces the purity of the original signal—without compromise. Telos® significantly reduces harmonic and intermodulation distortions by optimizing linearity in each amplification stage. By isolating high and low-current circuits, it prevents unwanted feedback and interference while improving Mechanical Grounding™.

Audio Mastery in Every Note

The amplifier features our new power supply unit (PSU), redesigned for greater efficiency, higher power output, and a new power supply board providing greater energy reserves. A smooth transient response between low and high sonic levels enhances dynamic range and allows precise handling of rapid volume changes. Capacitor power banks were specifically tailored for stereo amplification.

If you are interested in the Telos 690 please contact us HERE

Specifications

POWER SUPPLY

Nominal line voltage: 110 V or 220 V

Input voltage range: +/- 10 %

2x 350 VA Toroidal Power Transformer

Capacitor bank: 46’000 μF

OUTPUT POWER

Maximum power (IEC 62368-1):

· 2 x 250 Wrms on 8 Ω / 1 % THD

· 2 x 320 Wrms on 4 Ω / 1 % THD

RATED POWER CONSUMPTION

IEC 62368-1, 1/8 Output Power at 8 Ω: 275 W

DISTORTION

IMD (SMPTE), unloaded: < 0.02 %

THD+N, unloaded: < 0.08 % from 20 Hz to 20 kHz at 30 Vrms output

OUTPUT NOISE FLOOR Analog input terminated with RCA Shorting Caps, unloaded: < 10 μV from 20 Hz to 20 kHz

GAIN 35 dB

DYNAMIC RANGE

22 kHz measurement bandwidth (flat), true RMS unloaded: 100 dB

REAR PANEL

2 x output binding posts (left & right)

1 x On/Off power switch key

1 x Voltage input selector

RS232 Command connector

1 x USB device: Audio Class 2.0 (no driver required

on Mac OS X as of v.10.6.4 nor on Linux,

driver required only for Windows, contact your

Goldmund representative):

· Sample rate up to 384 kHz/Bit depth up to 32

· DSD64, DSD128 over PCM capabilities

1 x Toslink Optical

1 x Digital S/PDIF coaxial RCA 75 Ohms

5 x Analog RCA (left & right)

DAMPING FACTOR

600 at 1 kHz / 8 Ω

AMPLIFIER SIZE & WEIGHT

44 W x 16 H x 45 D (cm)

17.3 W x 6.3 H x 17.7 D (in) 28 kg

PACKAGING SIZE & WEIGHT (GROSS)

54 W x 26 H x 54 D (cm)

21.26 W x 10.24 H x 21.26 D (in)

31 kg

INPUT

Max level before clipping, Analogue input: 1 Vrms

Max level before clipping, Digital input: -6 dBFS

OUTPUT

Max level before clipping, 1 % THD, unloaded:

170 Vpp

COLOR

Standard

Gray

Custom

Black

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