air tight

airtight.GIF (2546 bytes)

Fabulous design for tube preamplifiers, single-ended and push-pull amplifiers from Japan.
Designed by legendary Mr. Miura. Ultimate construction with Tamura output transformers.

ATM-211 single-ended tube monoblocks

output power:        2 x 22 W A class (8 ohm)
tubes:             211 x 1,12AX7 x 1,12BH7A x 1
Frequency response:    20-20 kHz (+/- 1db)
input impedance:                           100 kohms
dimensions: 390 (W) x 360 (D) x 260 (H) mm
weight:                                                   26 kg

ATM-300 single-ended tube power amplifier

atm-300.GIF (26491 bytes)

output power:               2x 8 W A class (8 ohm)
tubes: WE300Bx1, 5U4Gx1, 12BH7A, 12AU7Ax1
dimensions:         430(W) x 275(D) x 245(H)mm
weight:                                                        24kg

ATC-1 line/phono tube preamplifier

atc-1.GIF (29347 bytes)

tubes:                                            12A X 7x5
output impedance:                          600 ohm
input sensitivity: phono 1.8mV, line 150mV
dimensions:     430(W) x 325(D) x 90(H)mm
weight:                                                    7kg

ATM-4 tube stereo power amplifier

atm-4.GIF (21174 bytes)

output power: 2x24 W (8 ohm) ultralinear push-pull
tubes:                                6L6GCx1, 6FQ7x2, 12AT7x1
input impedance:                                         100kohms
dimensions:                  380(W) x 340(D) x 205(H)mm
weight:                                                                 23kg

ATM-2 tube stereo power amplifier

atm-2.GIF (18781 bytes)

output power:                                2x80 W (8 ohm)
tubes:   KT88x2, 12AX7Ax2, 12AU7Ax2, 12BH7Ax2
input impedance:                                        100kohm
dimensions:             415(W) x 380( D) x 223(H)mm
weight:                                                             32kg

ATE-2 stereo tube phono EQ amplifier

ate-2.GIF (13883 bytes)

tubes: 12AX7x3, 12BH7Ax1, EF86x1, 6DJ8x2, EZ90x1
dimensions: 405(W) x 330(D) x 145(H)mm
weight: 12kg

ATM-3 tube mono power amplifier

ATM-3.GIF (12831 bytes)

output power:    2x110 W (UL), 2x55 W (Triode)
tubes:                      6CA7x6, 12AU7x1, 12AX7x1
input impedance:                                  100 kohm
dimensions:        405(W) x 340(D) x 220(H)mm
weight:                                                         25kg

ATC-2 stereo tube line preamplifier

atc-2.GIF (12886 bytes)

tubes:                                    12AX7x1, 12AU7x2
output impedance:                                 200 ohm
Frequency response: 5 - 100000 hz (+/- 1 db)
S/N Ratio:                                                < 98 db
dimensions:          410(W) x 337(D) x 156(H)mm
weight:                                                         12kg

ATM-1 stereo tube amplifier

atm1.GIF (31736 bytes)

output power:                        2x36 W (8 ohm)
tubes: 6CA7x4, 12AU7x2, 12AX7x1, 5AR4x2
input impedance:                             100 kohm
dimensions:     368(W) x 293(D) x 231(H)mm
weight:                                                    22kg