Mission 780 Argonaut. A speaker system developed as a high-end model of 770 Freedom.The 780 Argonaut has an additional woofer unit, which only receives low-frequency bass sounds, thus keeping the mid - and high-crossover region as simple as possible to ensure electrical and acoustic phase coherence.Two 21.5 cm cone type woofers are installed in the low range.The diaphragm is made of a homopolymer mineral-fired plastic cone to meet conflicting requirements for impulse response, sensitivity, damping and internal loss.The brass plated center pole has a special shape, and the heat-resistant voice coil material and efficient heat dissipation design increase power handling.A die-cast frame has been adopted for the frame to suppress unnecessary vibration.A 2.5 cm dome-shaped tweeter is installed in the high range.The unit has a short elliptical horn at the front, impedance transforms to eliminate the habit of the dome tweeter, and is cooled by magnetic fluid to avoid thermal damage, while increasing the saturation limit.The enclosure consists of a resonant particle board sandwiched between MDF baffle boards, and a viscoelastic damping material to minimize cabinet colorization. Method2-Way, 3-Speaker, Sealed System, Tall Boy TypeUnits UsedFor low band : 21.5 cm cone x2For high-pass : 2.5 cm dome typeFrequency characteristic30 Hz to 20 kHz ± 3 dBImpedance4 ?Recommended amplifier output50W ~ 200W/chOutput sound pressure level95dB/2.83V/1mCrossover frequency1.7kHzTerminalFive way binding postExternal dimensionsWidth 260x Height 950x Depth 320 mmWeight45 kg (when packed) Collection only. Boxes Included. Thank you for looking.

Mission 780 Argonaut Reference Loudspeakers Generally in excellent condition! Bearing in mind these are the best part of 40 years old. Very hard to find but even by todays standards these stand up strong. A bit of research online will tell you some history on these. Cash on collection

Vintage pair of Mission 780 Floor standing Argonaut speakers,full working order.Only selling as not being utilised anymore. Excellent sound and condition. Front grills would possibly benefit from a recover? Bi-wireable . Connection bar attached if not bi-wired , floor spikes included Bought new, and original packaging kept for transport. Collection preferable, but could arrange transport at extra cost

MISSION MODEL 780 ARGONAUT TOWER FLOOR STANDING SPEAKERS IN 2 DIFFERENT COLOURS.. Please carefully study the pictures for a better understanding of the cosmetic conditions, the bottom of the boxes are not in the best presentable shape and can definitely do with a bit TLC, but generally in good health condition, this set of speakers are available in 2 different colours as you can see from the pictures.