The price has been reduced! 2026/4/30 It will be a mid-range horn driver system with a sales price of 45,000 yen. Since it is for the mid-range, it does not produce high frequencies. It is used in speaker systems such as SENTRY III and SENTRY IVB, and is recommended for those thinking about 3-way. The exterior has dullness and small scratches due to aging. Serial 744 (Yonejima Satoshi)
Maintenance information: 2026.4.30 oscillator check OK
Accessories: No accessories
Main specifications: 8 ohms 500 to 6,000 Hz, 105 dB, crossover 800 Hz, diameter 104 x depth 87 mm, weight 2.2 kg (driver only)
The classic model for professional 1" screwdrivers. It is installed in many of the company's 43 series, etc., and it is a driver that is easy to balance even when combined with various woofers and tweeters. There are small scratches, paint peeling, and there is some small corrosion on the diaphragm (Sasaki Shota)
Maintenance information: Maintained on 2012.8.11 (magnetic circuit overhaul, operation adjustment, replacement of sound absorbing urethane material)
Accessories: none
Main specifications: 1 inch driver, throat diameter: 25 mm, 16 ohms (measured 10/12 ohms), 118 dB, frequency characteristics, 800 Hz to 20 kHz, crossover frequency: 500 Hz or more, 5.1 kg
The price has been reduced! 2026/4/14 sales price 69,800 yen Maintained! JBL professional 1" screwdriver. It was also installed in the late 4344 model. It is a utility driver that can be used in either 2 or 3 ways because it has a sound with a firm outline, but it doesn't come out too much. The exterior is dull and faded. Also, the rubber ring is slightly loose. Serial 12242/12247 (Tamura Eiji)
Maintenance information: 2026.4.14 Maintained (vibration plate installation adjustment, pad dampener deterioration and insulation bushing deterioration replacement. Mounting screw rust replacement speaker terminal mounting position correction. DCR (1224 6.9 ohm vibrating plate without scratches) (12247 6,7 ohm vibrating plate without scratches))
Accessories: No accessories
Main specifications: 800 to 20,000 Hz 16 ohms recommended crossover 800 Hz 110 dB throat diameter 2.5 cm 4.8 kg
The disposal price has been reduced! Member prices are not applicable. 2026/2/23 sales price 290,000 yen Maintained! JBL's masterpiece 2 inch screwdriver. You can enjoy the rich sound built into a number of famous devices. In particular, the energy and density of the midrange are excellent, and the vocals are sensual. The treble that stretches without impacting your ears is also attractive. There is a slight dullness in the diaphragm. The exterior is in a beautiful category even when viewed from the model year (Oikawa Tetsuji)
Maintenance information: 2026.2.23 Maintained (vibration plate installation adjustment
Pad dampener mounting screws, insulation bushing deterioration replacement
DCR (27466 7.4 ohm vibrating plate scratch) (27409 6.8 ohm vibration plate scratch not) vibrating plate replacement)
Accessories: none
Main specifications: 2 inch driver frequency band 500 Hz to 10 kHz crossover 500 Hz or higher sound pressure level 108 dB impedance 16 ohms (measured 27466/7.4 ohms, 27409/6.8 ohms) diameter 180 x depth 130 mm weight 11.8 kg/bottle
Maintained! 1 inch driver unit with high efficiency, wide bandwidth, and excellent linearity. You can enjoy the thick, calm sound. In particular, wind instruments blow up very well. If you want to relax and listen to jazz, why don't you do it? You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.4.2026.3.30 maintenance completed (diaphragm installation adjustment, pad dampener deteriorated mounting screw rust replacement, terminal contact part cleaning. Terminal ultrasonic cleaning. Insulating bushing replacement)
Accessories: none
Main specifications: throat diameter 2.5 cm impedance 16 ohms sound pressure level 117 dB frequency characteristics 800 Hz to 15 kHz crossover frequency 500 Hz or more voice coil diameter/material 4.4 cm, aluminum diameter 114 x depth 98 mm 3.7 kg
The disposal price has been reduced. Member prices are not applicable. 2024/12/18 sales price 69,800 yen Maintained! JBL professional 1" screwdriver It was also installed in the late 4344 model. It is a utility driver that can be used in either 2 or 3 ways because it has a sound with a firm outline, but it doesn't come out too much. There is dullness and tape marks (Oikawa Tetsuji)
Maintenance information: 2024.12.18 maintained (SP terminal, internal wiring replacement, pad dampener deterioration replacement, low range, vibration plate mounting adjustment screw, replacement due to rust, DCR (28615 5/6 ohm vibration plate, no scratches) DCR (28670 5.8 ohm vibrating plate no scratches)
Accessories: none
Main specifications: 800 to 20,000 Hz 16 ohms recommended crossover 800 Hz 110 dB throat diameter 2.5 cm 4.8 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/4/23 sales price 69,800 yen*Inexpensive because the rubber cover on the outer circumference is out of stock. Maintained! A coherent wave structure is used for the phase plug. It is designed so that the phase plug can be connected directly to the horn throat. A titanium diaphragm is used. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.4.23 maintenance completed (pad dampener replacement, speaker terminal screws and insulation bushing replacement)
Accessories: original box (2447H)
Main specifications: Throat diameter 3.8 cm, 16 ohms, frequency characteristics, 500 Hz to 20 kHz, 15.5 kg (actual measurement)