Limestone PP1 – a power amplifier from Croatia
18.11.2024 08:00
The Croatian company Limestone has introduced the Limestone PP1 mono power amplifier, which uses KT88 tubes. The model is housed in an “armor-piercing” case made of 1.5 mm stainless steel. Kerrock decorative panels add exquisite touches and allow the devices to fit into any interior.
The output stage of the Limestone PP1 amplifier is built using a push-pull circuit with KT88 tubes. The phase splitter and driver stage use Shuguang Black Treasure CV181-Z tubes, which can be replaced with 6SN7 TAD or NOS Sylvania “Bad Boy”. Gold-plated WBT connectors are provided for connecting acoustic systems. This hand-assembled tube amplifier provides impressive audio performance, combining precision engineering with premium components.
Specifications
Output power
45 Watts
Frequency response
30 Hz – 30 kHz (-3 dB)
Total harmonic distortion
less than 1% at 1 kHz
Signal-to-noise ratio
85 dB (noise about 1 mV)
Input sensitivity
0.7 V RMS for full 45 watt output power
Load impedance
4 ohms and 8 ohms
Dimensions (W x H x D)
25 x 25 x 55 cm
Weight
18 kg
Official site
https://limestone.hr
Image source - https://limestone.hr