I have four of these, $OLD total!
MidFi+ Damping Instrument: low price, great value!
HAL-O 9 MidFi+ Damping Instrument
Delivering a surprisingly linear frequency response, MidFi+ tends to induce a subtle, gently rising bottom end, great for modest systems that are a bit lean on the bottom. A slightly more solid bass, without "bumps" or "valleys," together with increased clarity and reduced microphonics throughout the frequency spectrum results in a very pleasant and dynamic listening experience. Sandblasted PTFE ring with custom-forumulated high-temperature silicone damping pads. Not recommended for extremely hot-running 6H30 "supertubes" or EL84 power tubes.
MidFi+ fits miniature nine-pin tubes, including 12AT7/ECC81, 12AU7/ECC82, 12AX7/ECC83, 12AY7, 12AZ7, 12B4, 12BH7, 12BY7, 12BZ7, 12FQ7, 2C51/396, 417, 5670, 5751, 5814, 5842, 6189, 6201, 6267, 6350, 6414, 6688, 6829, 6922, 6955, 6973, 6AN8, 6BL8, 6BQ7, 6C45, 6CG7, 6DJ8/ECC88, 6FQ7, 6GC7, 6GH8(A), 6GU7, 6N1P, 6N3P, 6N6(P), 6U8(A), 6V4, 7025, 7044, 7119/E182CC, 7199, 7308, 8416, EC86, ECC85, EF86, EL86, EZ80.
For small-signal input/driver and preamp tubes only.
$4.49 ea.
MidFi+ 27 fits most straight-sided octal tubes, including 12J5-GT, 12SN7-GT, 6AH4, 6AU5, 6EA7/6EM7, 6F6G, 6FY7, 6H4, glass 6J5, 6R7, 6SJ7, 6SL7, 6SN7, 6SN7GT-series (6SN7GT, 6SN7GTA, 6SN7GTB, 6SN7WGT, 6SN7WGTA), "slim" 6Y6, VT-231.
For small-signal input/driver and preamp tubes only.
$4.95 ea.
