Expressive
TECHNICAL SPECIFICATIONS :
Single-ended amplifier (SE)
Output power raiting 30W (8 Ohm)
Tubes (one channel) :
6S2S / 6J5 + 6F6S / 6F6+ GM70 + 2 x 5C3S / 5Y4G
The copper case
SOFT-START and STAND-BY systems
THD = 0.8 % (-3 db) ,
Input signal level = 1 V,
Frequency response (-3 db) : 10 - 35000 Hz
Circuit diagram
DO IT YOURSELF
BLUES DHT
TECHNICAL SPECIFICATIONS :
Single-ended amplifier (SE)
Output power raiting 8 W (8 Ohm)
Tubes (one channel) : 2 x 4P1L + 300B + 5C3S / 5Y4G
THD = 2 % (-3 db),
Input signal level = 1 V,
Frequency response (-3 db) : 16 - 30000 Hz
Circuit diagram
BLUES
TECHNICAL SPECIFICATIONS :
Single-ended amplifier (SE)
Output power raiting 8 W (8 Ohm)
Used tubes (one channel) : 6N8S / 6SN7 + 300B + 5C3S / 5Y4G
THD = 1.5 % (-3 db),
Input signal level = 1 V,
Frequency response (-3 db) : 16 - 27000 Hz
Circuit diagram
Circuit diagram of power supply
SOLO
TECHNICAL SPECIFICATIONS :
Push-Pull amplifier (PP)
Output power raiting 10 W (8 Ohm)
Tubes (one channel) : 6N23P / ECC88 / 6DJ8 + 2 x 6P14P / EL84 / 6BQ5
THD = 2 % (10 W),
Input signal level = 1 V,
Frequency response (-3 db) : 20 - 30000 Hz
Circuit diagram
PIANO
TECHNICAL SPECIFICATIONS :
Push-Pull amplifier (PP)
Output power raiting 24 W (8 Ohm)
Tubes (one channel) : 6N8S / 6SN7 + 2 x 6P3S / 6L6 (Tungsram, Svetlana)
THD = 1.8 % (20 W),
Input signal level = 1 V,
Frequency response (-3 db) : 15 - 30000 Hz
Circuit diagram
Circuit diagram of power supply
PIANO GOLD
TECHNICAL SPECIFICATIONS :
Push-Pull amplifier (PP) Class А
Output power raiting 14 W (8 Ohm)
Tubes (one channel) : 6N6P + Interstage + 2 x 5881
THD = 1.2 % (-3 db),
Input signal level = 0,8 V,
Frequency response (-3 db) : 15 - 5000 Hz
TWIN
TECHNICAL SPECIFICATIONS :
The single-ended amplifier (SE)
Output power raiting 7 W (8 Ohm)
Tubes (one channel) : 6N7S / 6N7 + 2 x 6S4S / 6B4G
THD = 0.6 % (-3 db),
Input signal level = 1,7 V,
Frequency response (-3 db) : 15- 28000 Hz
Circuit diagram
Circuit diagram of power supply
PRIME
TECHNICAL SPECIFICATIONS :
Push-Pull amplifier (PP)
Output power raiting 10 W (8 Ohm)
Tubes (one channel) : 6N9S / 6SL7 / ECC35 + 2 x 6S4S / 6B4G
THD = 1% (-3 db),
Input signal level = 1,2 V,
Frequency response (-3db) : 16 - 22000 Hz
Circuit diagram
Circuit diagram of power supply