JBL MTC-CBT-70T

General Specifications

Transformer Taps

120W, 60W, 30W (and 15W at 70V only)

Connection

CE-compliant barrier strip terminals. Terminals accept up to 8 mm outside 4 mm inside open-lug (#6 or #8) plus bare wire up to 2.5 mm2 (12 AWG).

Terminal 1

Common (black wire from transformer)

Terminal 2

120W @ 70V, N/C @ 100V (orange wire from transformer)

Terminal 3

60W @ 70V, 120W@100V (purple wire from transformer)

Terminal 4

30W @ 70V, 60W @ 100V (blue wire from transformer)

Terminal 5

15W @ 70V, 30W @ 100V (white wire from transformer)

Terminal 6

N/C (no wire from transformer)

Terminal 7

+ Output to loudspeaker + terminal (yellow wire from transformer)

Terminal 8

– Output to loudspeaker – terminal (green wire from transformer)

Maximum Insertion Loss

Less than 1 dB at any tap

Gland Nuts

Two total. One gland nut by the transformer selection terminals for cable from amplifier and one gland nut by the transformer secondary terminals (green and yellow wires) for output to speaker terminals. It is recommended to orient gland nuts toward bottom of enclosure. Watertight seal requires round jacketed cable with outside diameter between 4.0 mm (0.16 in) and 9.0 mm (0.36 in).

Mounting to Speaker Cabinet

Two holes in the back of the enclosure 70 mm (2.75 in) apart. Insert included 6 mm screw from inside MTC-CBT-70T enclosure, using 1 flat washer and 1 lock washer, into the side-by-side M6 insert points on the back of the CBT70J-1 or CBT70JE-1 cabinet.

Environmental Capability

IP-55 rated, per IEC529. UV, moisture and salt-spray resistant

Agency Rating

Transformer UL registered per UL1876, Isolating Signal and Feedback Transformers for Use in Electronic Equipment.

Included Accessories

Two 6 mm (x 15mm length x 1.0 thread pitch) bolts, flat washers & lock washers

Dimensions

Dimensions (H x W x D)

157 x 114 x 86 mm (6.2 x 4.5 x 3.4 in) including gland nuts. 128 mm (5.0 in) enclosure height for enclosure only.

Net Weight

1.13 kgs (2.5 lbs)

Shipping Weight

1.36 kgs (3.0 lbs)

Design

Enclosure Material

Fiberglass filled ABS