Goldmund Telos 800 Stereo Power Amplifier

The Goldmund Telos 800 is a reference Class A/B stereo power amplifier engineered to deliver Goldmund's Telos amplification technology in a single-chassis two-channel design. Rated at 300 watts per channel into 8 ohms and 390 watts per channel into 4 ohms, it combines a massive 3200VA toroidal transformer, 93,600µF capacitor bank, 35dB gain and a damping factor of 600 to provide substantial power with precise control of demanding passive loudspeakers. Goldmund

Rather than pursuing output power alone, Goldmund designed the Telos 800 around low output impedance, wide bandwidth, low noise and control of the loudspeaker's moving elements. The result is an amplifier intended to preserve microdynamics and transparency at low listening levels while maintaining control, transient speed and dynamic authority as output demands increase. Goldmund

Goldmund Telos Amplification Technology

At the center of the Telos 800 is Goldmund's proprietary Telos amplifier topology, a technology the company has continuously developed since the 1990s.

The circuit operates in Class A/B and combines highly linear analog components with a high-bandwidth architecture. Goldmund's approach emphasizes reducing output impedance and optimizing linearity throughout each amplification stage rather than relying simply on large amounts of feedback or headline power figures. Goldmund

The design also separates high-current and low-current circuits to reduce interference and unwanted feedback between different sections of the amplifier.

300 Watts per Channel Into 8 Ohms

The Telos 800 delivers:

2 × 300 watts RMS into 8Ω at 1% THD
2 × 390 watts RMS into 4Ω at 1% THD

Goldmund specifies a maximum unloaded output level of 170V peak-to-peak before clipping at 1% THD. Goldmund

This output capability makes the Telos 800 suitable for large reference loudspeakers and systems requiring substantial dynamic headroom without moving to separate monoblock amplifiers.

3200VA Toroidal Power Transformer

A high-current amplifier depends heavily on its power supply, and Goldmund gives the Telos 800 considerable reserves.

Its linear power supply incorporates a 3200VA toroidal power transformer feeding a 93,600µF capacitor bank. Goldmund specifically redesigned the power-supply architecture for greater efficiency, increased output capability and larger energy reserves, with the capacitor banks optimized for the stereo amplifier configuration. Goldmund

This substantial reserve supports the amplifier during rapid musical transients where instantaneous current delivery becomes more important than continuous test-bench wattage.

Damping Factor of 600

Goldmund specifies a damping factor of 600 at 1kHz into 8 ohms. Goldmund

That specification is directly related to one of the central objectives of Telos technology: maintaining precise electrical control over the loudspeaker.

This becomes especially important at low frequencies, where large woofer excursions can create overshoot and unwanted mechanical movement. Goldmund's low-output-impedance design is intended to control those movements quickly, improving bass definition while preserving low-level dynamic information. Goldmund

110dB Dynamic Range

The Telos 800 achieves a specified 110dB dynamic range, measured with a 22kHz flat measurement bandwidth and true RMS unloaded. Goldmund

The amplifier is designed to maintain resolution across a wide range of playback levels rather than becoming dependent on high volume to reveal detail. That makes its noise performance particularly important in highly resolving systems using efficient reference loudspeakers.

Ultra-Low Noise Performance

Goldmund specifies an output noise floor of less than 3µV from 20Hz to 20kHz, measured unloaded with the analog input terminated by RCA shorting caps.

THD+N is specified at less than 0.05% from 20Hz to 20kHz at 30Vrms output, while SMPTE intermodulation distortion is also rated below 0.05% unloaded. Goldmund

These figures support Goldmund's emphasis on transparency and preservation of low-level musical information rather than output power in isolation.

Balanced XLR & Unbalanced RCA Inputs

The Telos 800 accommodates both balanced and unbalanced analog systems with:

2 × balanced XLR analog inputs
2 × unbalanced RCA analog inputs

Maximum analog input level before clipping is specified at 1Vrms, while amplifier gain is 35dB. Goldmund

This allows the Telos 800 to integrate with Goldmund preamplifiers as well as reference analog preamplifiers and source components from other manufacturers.

Digital Input & Output

Unusually for a high-end stereo power amplifier, the Telos 800 also includes RCA digital input and output connections.

Goldmund specifies the maximum digital input level before clipping as -6dBFS. Goldmund

This provides additional integration flexibility within Goldmund's digital ecosystem while retaining conventional XLR and RCA analog connectivity for traditional high-end systems.

High-Current Loudspeaker Connections

For each stereo channel, Goldmund provides conventional heavy-duty speaker binding posts alongside its proprietary loudspeaker connections.

The rear panel includes:

4 binding posts — left/right positive and negative
2 Goldmund Speaker 4B connectors — left and right Goldmund

A dedicated ground binding post, AC earth binding post and Ground/Earth Lift switch provide additional flexibility when addressing system grounding.

Mechanical Grounding

Goldmund treats mechanical behavior as part of amplifier design rather than simply industrial styling.

The Telos 800 uses Conic Feet developed according to Goldmund's Mechanical Grounding principles. Their purpose is to evacuate unwanted mechanical energy from the chassis into the supporting structure rather than allowing vibration to accumulate within the amplifier. Goldmund

Mechanical grounding works alongside the amplifier's electrical design, thermal management and electromagnetic shielding as part of Goldmund's broader approach to signal integrity.

Micro-Blasted Aluminum Chassis

The Telos 800's substantial enclosure is constructed from an ultra-thick proprietary aluminum alloy with a micro-blasted surface finish.

Goldmund minimizes visible joints and screws while engineering the chassis around three functional priorities: heat dissipation, electromagnetic shielding and mechanical grounding. Goldmund

The standard finish is Goldmund's signature Grey, while Black is available by request, subject to availability and lead time. Goldmund

Award-Winning Reference Amplification

The Telos 800 received both a 2025 Golden Ear Award and 2025 Product of the Year recognition from The Absolute Sound, according to Goldmund's November 2025 announcement. Goldmund

For the Shopify page, I would include this because it provides legitimate third-party recognition without turning the description into review copy.

Goldmund Telos 800 Technical Specifications

Goldmund's current Rev. B specification sheet is the source I would use for the Shopify technical table; it supersedes the older specification document and clarifies the current fuse ratings as 4A slow-blow at 220V and 8A slow-blow at 110V. Goldmund

Telos 800 vs. Goldmund Monoblocks

The Telos 800 occupies an important position in the current Goldmund amplifier range. It brings contemporary Telos technology into a single stereo chassis, offering an alternative for systems where separate monoblocks aren't necessary or desirable. Goldmund currently positions larger Telos 1800, 2800, 3800, 4800, 8800 and 9800 models as mono amplifiers, while the Telos 800 is the dedicated stereo power amplifier in the range. Goldmund

That positioning makes it particularly compelling for a very high-level system where the owner wants substantial Goldmund amplification without adding two separate amplifier chassis.

Goldmund Telos 800 at The Grid HiFi

The Goldmund Telos 800 belongs in a reference system where loudspeaker control, speed, transparency and system matching matter as much as raw output power. Its combination of 300 watts per channel into 8 ohms, 390 watts into 4 ohms, 3200VA power transformer, 93,600µF energy storage and 600 damping factor gives The Grid HiFi considerable flexibility when matching it with demanding high-end loudspeakers.

The Grid HiFi can design the complete system around the Telos 800, including reference preamplification, digital or analog sources, loudspeakers, power, cabling and equipment support, with careful matching based on the loudspeaker load, room and listening priorities.

Considering the Goldmund Telos 800? Call The Grid HiFi at (713) 218-8120 to build and audition a complete reference system around it.