Emission LabsDirect alternatives matched pair

The Emission Labs 300B vacuum tube was designed as an alternative to the original Western Electric E300B manufactured by 1988, and the glass height and diameter are identical. This vacuum tube takes over the sound quality and characteristics of the traditional 300B, while also providing a modern high-quality acoustic experience.

Features and advantages

Stable sound quality and low distortion
EML's 300B are unique filaments and grid structures that provide extremely low hum noise and low distortion for most of its life. In particular, the gold-plated grid improves bias stability and maintains the degree of match for pairs.

Adaptability to speakers
The 300B is designed to place a medium load on the efficiency of the speaker, and because there is little interaction with the speaker, the sound quality is easily influenced by the characteristics of the vacuum tube itself. The EML 300B combines the high output and low distortion required by the amplifier in the vacuum tube to express the music without distortion.

Long life and durability
The EML 300B has a high expected lifetime and maintains stable performance, especially when the amplifier has a high load. Based on Western Electric's 1950 datasheet, EML also recommends maximum 36W dissipation power, but it recommends that normal operation not exceed this limit. It is recommended to consider EML 300B-XLS for operation under harsh conditions.

EML 300B is supported by vacuum tube amplifier enthusiasts as a product that reproduces the warm sound of the classic Western Electric 300B and is even more durable and stable. Combined with a single-end, no-feedback amplifier, you can enjoy a unique rich and natural sound.

• Gold plated grid.There are several advantages, such as improving bias stability, protecting against accidental overload, and improving tube curve linearity.
• Soft Rubber Suspended Tube
• BaseCarbide structure.Hard metal anodes have a more accurate anode distance and do not change shape due to heating or mechanical impact. This ensures the reproducibility and long-term stability of the tube parameters.
• Two oversized getters
• Hand-blown glass ball
• Anti-microphonic anode and grid suspension
• These tubes are shipped with high quality dual boxes.
• Tube printing using real gold (metal), red is glass baked to glass
• Gold plated pin, black ceramic socket (white bottom)

EML 300B Filament Rating

Maximum rating EML(Simultaneous)