Electronics
Hybrid Amplifiers
HTA-25B (2021)
Description
HTA-25B is a 25W / 4Ω high-fidelity but still affordable hybrid integrated amplifier utilizing four high quality tubes (depending on the option: 2 x 6P1 and 2 x 6N1, or 2 x 6H1N and 2 x 6N1N-EB) in the preamp section and transistors at the output.
NEW FEATURES (2021 version)
- Preamplifier ouput - dedicated for an optional external power amplifier or powered subwoofer and speakers.
- Aluminum side panels – to provide even more chic and timeless looks.
OTHER KEY FEATURES
- Bluetooth® - to wirelessly stream music from smartphones, tablets or computers.
- Class A/B hybrid design utilizing vacuum tubes in the preamp section and transistors in the output to ensure a very warm, linear and lifelike sound with high dynamic presentation.
- Sleek aluminum front and side panels design suitable for most interiors.
- Ceramic tube sockets to get the most of the tubes.
- 120W toroidal power transformer provides large amounts of clean power, high voltage stability and very
low AC ripple current. This reflects in higher dynamics and extra pure energy and greater abilities to properly drive different range of speakers. - Headphone output for those who prefer discrete listening.
- USB input - to quickly and easily play music from a USB flash drive (supports APE, FLAC, MP3, WAV files).
- 2 analog inputs with gold-plated RCA sockets.
- High-end banana speaker terminals accept raw speaker cables up to 10AWG and most popular types of connectors.
- Treble/Bass sound regulation - to perfectly adjust the sound to your preferences.
- Removable Schuko-IEC C13 power cable gives an option to upgrade the system with a premium audiophile power cable in any time.
Specification
| Design | Hybrid amplifier Class A/B |
| Vacuum tubes | Depending on the option: 2 x 6P1 & 2 x 6N1 or 2 x 6H1N & 2 x 6N1N-EB |
| Power output / impedance | 2 x 25W RMS 4ohm 2 x 18W RMS 8ohm |
| Wireless connectivity | Bluetooth® v4.0 |
| Digital inputs | USB (audio files: APE, FLAC*, MP3, WAV) * Supports FLAC files up to 48kHz (sample rate) and 918Kbps (bit rate). |
| Analog inputs | CD, Line |
| Analog outputs | RCA Pre-Out |
| Headphone output | Impedance: 32-320ohm Output power: 20mW, 32ohm |
| Frequency response | 20Hz – 20kHz |
| Total Harmonic Distortions | ≤0.5% (1kHz 1W) |
| Signal/Noise ratio | ≥80db |
| Features / accessories | Regulation: Bass 100Hz ±8dB Treble 10kHz ±10dB Tube cover (factory installed) Schuko-IEC C13 power cord |
| AC power / power consumption | 220V-240V 50/60Hz, 120 W |
| Dimensions (H x W x D) | 13.8 x 26 x 29.8 cm |
| Weight | 5 kg / pc. |
Finishes
Colours
Black (aluminum) 
Silver (aluminum) Technology
Hybrid amplifier
What does it mean and why does TAGA Harmony use this approach?
Hybrid means a combination of two different techniques to create an amplifier in one device: the World of tubes and the World of transistors.
TAGA Harmony amplifiers use vacuum tubes in the preamp section and transistors in the power stage. This results in tube, soft and analog-like sound character and at the same time high dynamics and power provided by transistors, which is usually a weak point of pure tube designs.
The sound of TAGA Harmony hybrid amplifiers is not only silky and rich but also powerful and dynamic. In addition, hybrid amplifiers compared to pure tube amps have better abilities to properly drive different kind of speakers.
After being turned on a hybrid amplifier requires to warm up its tubes to reach its full sound capabilities – it usually takes from 5 to 15 minutes depending on model and room temperature.