IGS AUDIO Thermidt - Hi-Fi Tube Amplifier — Power Amplifier
IGS AUDIO Thermidt - Hi-Fi Tube Amplifier — Power Amplifier
IGS Audio Thermidt is a stereo hi-fi tube amplifier designed for 4 ohm or 8 ohm speakers. IGS specifies 2 x 21 W output power, Class AB push-pull fixed-bias operation and Negative Cathode Feedback.
Specifications
Amplifier Format
| Product type | Stereo hi-fi tube amplifier |
|---|---|
| Output power | 2 x 21 W |
| Speaker load | 4 ohm or 8 ohm speakers |
| Topology | Class AB push-pull fixed-bias operation with Negative Cathode Feedback |
Tubes and Construction
| Tube complement spec table | 2x 6P14P-EV, 2x 6F1P, 2x 6N2P-EV (12AX7) |
|---|---|
| Tube complement description | Descriptive text references four 7189/6N14P-EV power tubes and two 6BL8 triode-pentodes |
| Top plate | 8 mm CNC-machined top plate |
| Output transformers | Project-specific output transformers using Z11 grain-oriented lamination steel cores |
Inputs and Outputs
| Analog inputs | Three pairs of RCA connectors |
|---|---|
| Input sensitivity | 0.775 V RMS |
| Bluetooth | QCC5125 Bluetooth with LDAC, aptX HD, aptX-LL, aptX, SBC and AAC; product text cites built-in DLHiFi 5.1 module |
| Headphone output | Headphone output for headphones from 16 ohms upward |
Performance and Power
| Frequency response | 10 Hz to 80 kHz, +/-1 dB |
|---|---|
| Harmonic distortion | Max 0.15% at 15 W, 100 Hz |
| Imd | Max 0.85% at 15 W, 50 Hz |
| Snr | >52 dB |
| Tone control | Flat, Bass (+6 dB at 100 Hz) and Loudness modes |
| Power | 150 VA consumption; 230/110 V AC, 50 or 60 Hz |
Fit and constraints
Intended use
Constraints
To use it
Questions
What exact dimensions, mounting pattern, and model compatibility does this part support?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Is all required mounting hardware included?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Does installation require routing, drilling, soldering, or other irreversible work?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Description
IGS Audio Thermidt is a stereo hi-fi tube amplifier designed for 4 ohm or 8 ohm speakers. IGS specifies 2 x 21 W output power, Class AB push-pull fixed-bias operation and Negative Cathode Feedback. The manufacturer lists maximum harmonic distortion of 0.15% at 15 W/100 Hz, frequency response of 10 Hz-80 kHz +/-1 dB and IMD up to 0.85% at 15 W/50 Hz. Tube complement is listed as 2x 6P14P-EV, 2x 6F1P and 2x 6N2P-EV/12AX7, while the descriptive text also references four 7189/6N14P-EV power tubes and two 6BL8 driver tubes, indicating tube naming variants across sections. Inputs are three RCA pairs plus Bluetooth based on a QCC5125 module with LDAC, aptX HD, aptX-LL, aptX, SBC and AAC support; output impedance taps are 4 or 8 ohms. It includes Flat, Bass and Loudness tone modes, headphone output for 16 ohm and higher headphones, 150 VA power consumption and 230/110 V AC operation. .