ขาย ปรีไมล์หลอด ยี่ห้อ TL Audio ของอังกฤษ

ขาย Tube Mic /Line Preamp ยี่ห้อ TL Audio [Original Classic Series] PA-1 Dual Pentode Valve Pre-Amp ใช้หลอด ECC83/12AX7A  และ EF86 pentode valve.  สภาพดี   เสียงดีมาก  มีภาค Iine    The PA-1 differs from our standard hybrid preamp design - it features a transformer coupled mic input followed by a low noise, high gain EF86 pentode valve. Two further triode valve stages (supplied by 250v DC) are incorporated in each channel. The instrument input bypasses the transformer, and feeds straight into the pentode valve. TL Audio's usual high drive solid state output stage completes the signal chain. 2 channels of high quality valve pre-amplification Balanced transformer coupled microphone inputs Front panel unbalanced jack instrument inputs Balanced line outputs, switchable for +4dB or +18dB operation Line outputs duplicated on unbalanced jack connections 48v phantom power Switchable input gain control (20 to 50dB in 10dB steps) with continuously variable +/- 12dB trim Switchable high and low pass filters (12dB / octave). Applies to all inputs HPF has cut off frequencies of 50Hz, 100Hz or 150Hz LPF has cut off frequencies of 5kHz, 10kHz or 15kHz Rotary faders for controlling output level Phase reverse switch on Channel B Drive and Peak LEDs indicate internal signal levels Frequency response 30Hz to 40kHz +0 / -2dB