Posts with tag "Tubes"

How to read rated sensitivity, why dB/W/m and dB/2.83 V/m are different figures, how to calculate the power you need, and proven model benchmarks.

Seven single-ended 300B amplifiers: rated specifications, circuit solutions, speaker compatibility calculations and impedance requirements.

Cayin has released the new Cayin Soul 170C vacuum tube preamplifier, the perfect complement to the recently announced Soul 170P stereo vacuum tube power amplifier.

By resuming the introduction of 300B tubes, Western Electric has created a full-scale storm on the audiophile market. Well, the American manufacturer has many more things in its arsenal that can surprise fans of good sound – for example, the Western Electric 91E integrated single-ended amplifier, which we are testing today.

The tube stereo power amplifier Pearl Acoustics 170 SE should go on sale only at the end of 2025 – but the veil of secrecy over the device has already been lifted. We are waiting for a dual mono, single ended design power amp with 0 dB global feedback. The device is based on the inexpensive PSVANE "Horizon" KT150 tubes – which delivers excellent holography, as well as good bass and detail without a significant loss in output power.

French company Pier Audio presented the integrated amplifier Pier Audio MS 1000 SE. The model uses a large-sized 800 VA power transformer wound in the old style with high quality copper and weighs 23 kg. Up to a power of 2 x 20 W per channel, Pier Audio MS 1000 SE operates in class A, then switches to class AB, developing up to 2 x 150 W at 8 Ohm load and doubling the power to 2 x 300 W at 4 Ohm speakers.

Pro-Ject has released the Pro-Ject DAC Box RS Final Edition digital-to-analog converter – the new product features a pair of audiophile Diamond ECC88 tubes. All circuit elements of the Pro-Ject Audio DAC Box RS Final Edition have undergone a special selection, and the internal wiring has also been upgraded. The DAC output stage is implemented in a balanced circuit, while the tube circuit can be either connected or disconnected using a button on the front panel.

Polish company Taga Harmony presented the Taga Harmony TCD-70T CD player, the output stage of which is implemented on two 6N2 tubes. Together with the reference chip of the ESS Technology SABRE ES9018 converter and a large-sized power supply based on a 100 W toroidal transformer, the model promises luxurious sound quality.

Fezz Audio has introduced the Fezz Olympia Mono Power Amplifier and the Fezz Olympia Dual Mono Amplifier. The models are based on KT88 tubes and offer high output power.