Opus 2 – Push Pull Stereo – EL34
OPUS 2 classic EL34 Push Pull
The Opus 2 Has the same classic EL34 circuit we started using in our first design , The Quintet in 1988. Tried tested, trusted and loved by customers all over the world, this design has stood the test of time and is still one of our most popular models.
Two versions are available.
One for higher power 25 watts (Pentode), the other for optimum sound quality 15 watts (triode). The sound is enticing and the longer you listen to this amp the more you will appreciate its easy grace and effortless musicality.
The Quintet was once described by Chris Binns as the poor mans Jardis!
The Opus 2 gives you music with a sense of rightness that you don’t really question, you just get on and enjoy it.
With 15 watts Triode (low feedback) you need to use speakers around 98 db and above.
With 25 watts Pentode (higher feedback) you will get away with less efficient speakers around 95 db, slightly more dynamic than the triode version with tighter bass, but not quite so musical.
The Opus 2 can be further configured as a line level integrated or a power amplifier, further enhancing its versatility.
POWER 2 VERSIONS 15WATTS (TRIODE) / 25WATTS (PENTODE)
TYPE: STEREO PUSH PULL EL34
FREQUENCY RESPONSE @1WATT: 4 HZ TO 70 KHZ + – 0.5db
FREQUENCY RESPONSE @FULL POWER: 20HZ TO 40 KHZ + – 1db
INPUT SENSITIVITY: 500 mv
INPUT IMPEADANCE: 470 KΩ
OUTPUT IMPEADANCE 4Ω AND 8Ω
NOISE AT SPEAKER TERMINALS: TYPICALLY LESS THAN 1 mv
FEEDBACK: TRIODE 15 WATT 0.5db PENTODE 25 WATT 6db
CONSTRUCTION:HYBRID PCB / HARD WIRED
COMPONENTS: RESISTORS: 1% METAL OXIDE, CAPACITORSS LOW
INDUCTANCE LOW ESR, COUPLING CAPS MKP
TRANSFORMERS: MULTI SECTION SPLIT BOBBIN
RECTIFIER: SOLID STATE
DRIVERS: ECC 82 AND ECC 83
HEATERS : AC CTR. TAPPED
SET UP: NO SET UP REQUIRED, VALVES MUST BE MATCHED.
SIZE: 18 inches wide, 14 inches deep, 7 ½ inches high.
WEIGHT: 25 kg