Powerful and affordable tube amplifier, based on the Stereo 40.
Pure Class A
2 x 30W in ultralinear mode
4 x EL34 perfectly matched
Solen condensers
Warm and powerful sound, easy maintenance and multi-valve compatible
Superior headphone output and hand-wired premium construction
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ICON AUDIO STEREO 25 MKII EL34. Tube Power at an Incredible Price
Enjoy a streamlined design of our award-winning Stereo 40, offering the same sound quality at nearly half the price. This integrated tube amplifier combines great power with ease of use, making it the perfect choice for both beginners and experienced audiophiles.
Key Features
Warm and powerful sound – Equipped with 6SN7 and 6SL7 tubes for superior performance.
Easy maintenance – No bias adjustment required when replacing tubes of the same type.
Versatility – Compatible with a wide range of tubes (6L6, EL34, KT88, and more).
Optimized listening experience – Dedicated headphone output with superior quality compared to solid-state amplifiers.
Premium construction – Hand-wired, no printed circuit boards, with high-fidelity components.
Technical Specifications
(Typical Specifications for EL34 Tubes at 240V 50Hz, 8 Ω)
Compatible Output Tubes: 6L6, EL34, 6CA7, KT66, KT88, 6550.
Control Tubes: Dual-triode 6SN7 and 6SL7.
Class A Operation with all front-end sections in triode mode.
Ultralinear Output Design.
Triode Operation Option available upon request (19W + 19W) at no additional cost.
Handcrafted Construction with point-to-point wiring, no printed circuit boards used.
Output Power: 30W RMS per channel in ultralinear mode (EL34).
Speaker Outputs Available: 4 and 8 ohms.
Transformers with tertiary winding.
Frequency Response: 20Hz - 20kHz (+0 dB / -0.5 dB).
Total Harmonic Distortion (THD): Typically less than 0.5% at 1kHz.
Hand-wound transformers.
Includes an elegant tube cover at no additional cost.
High-fidelity Solen capacitors.
Silver-plated PTFE audio cable.
Gold-plated input and speaker connectors.
Three line inputs compatible with CD, tuner, turntable, and more.
Input Sensitivity: 250 mV for full output.
Power Supply Voltage: 220/240V, power consumption 100W (maximum 180W).
Dimensions: 34 cm (width) x 34 cm (depth) x 22 cm (height).
Approximate Weight: 17 kg.
Complies with CE, ROHS, and RAEE regulations.
Includes a detailed manual.
Bias Adjustment: Not required if replacing tubes with the same type. However, bias adjustments and test points are provided to optimize performance with a wide range of output tubes.
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