Bay Audio JMI Brochure

In-Wall Speakers

Floating grille audiophile speaker systems

Product Description

These are the finest in-wall speakers avail-

able. Behind the elegant floating grille

is a speaker system built using the same

components used in all Bay Audio cabinet

speakers. They perform like audiophile

speakers should — with pinpoint imaging,

midrange clarity, and deep, tight bass.

2-Channel Systems

Use the JMi or JTi in full-range 2-channel

systems. Choose these speakers where you

want excellent performance.

Theater Systems

The JMi and JTi are excellent in theater

systems — for front or rear application. They

match the JAM Monitor’s frequency

response within a 2dB window.

Product Features

• Reverberance control reduces echoes in
lively rooms.

• Pi Space control reduces midbass “bloat”

caused by placement near ceilings and

corners.

• Constrained layer baffle greatly reduces

distortion in the midrange and bass.

• Floating grille hides all components,

and attaches with magnet strips so

no hardware is visible.

• Can be mounted in walls and ceilings.

Product Construction

©2002 Bay Audio. Specifications are subject to change.

7905 Silverton Avenue, San Diego, CA 92126 ph 858.271.1422 fx 858.271.1752 www.BayAudio.com

Crossover Networks

We build our crossovers with the
finest electrical components.
We use a glass PCB board and
hand-wound chokes. For
increased transient response and
clarity, we use Solen capacitors,
500v bypass capacitors, and
14ga. cable for internal wiring.

On-Board Tuning

Reverberance and Pi Space
tuning overcome placement and
room acoustic problems.

Grilles

Our custom–perforated grilles
float in front of the speaker,
covering all hardware. They can
be painted to match your walls.

Speaker Baffle

We fabricate a 3-ply constrained
layer baffle with two sheets of
MDF sandwiching a visco-elastic
polymer core. This type of con­struction converts vibrations into
heat, reducing distortion. You’ll
hear more bass, and cleaner
midrange.

Drivers

Our in-walls use custom-built
drivers, including a 1" soft-dome
tweeter and long-throw bass
units. We designed the bass units
with a shorting cylinder — a
special device which reduces
distortion, especially at high
volumes.

By methodically measuring the effects of room

size, building materials, furnishings, and

speaker placement on music reproduction,

we create products that sound great in any

room of your home. We’re pioneers in this

field — the first, and we believe, only speaker

company to focus entirely on designing speak-

ers mindful of the interaction of placement on

room acoustics.

Only Bay Audio has on–board filters to opti-

mize the speaker for its intended placement.

Reverberance

You may have a room with hardwood floors,

exposed windows, and a minimum of furni-

ture. This creates a distinct echo effect in the

room we call reverberance. It makes certain

frequencies — especially the higher notes —

overbearing. All speakers have a

Reverberance control to mitigate this effect.

Pi Space

Mount an in-wall speaker in the middle of

the wall and it sounds fine. But as you move

it up towards the ceiling, it starts to sound

unnaturally “thick”. The walls cause the sound

degradation by reinforcing certain frequencies.

In engineering lingo, as the speaker moves

towards the ceiling it is “shifting in pi space”.

These speakers have a Pi Space control to

overcome this effect.

On-Board Tuning

Specifications

JMi JTi

Full-Range Output @ 1m 100dB with 25w 106dB with 100w

Bandwith Limited (>100 Hz) @ 1m 109dB with 200w 109dB with 200w

Recommended Room Size <5,000 ft

3

<7,000 ft

3

Close-Miked Near-Field Response (±3dB) 49-20,000 Hz 49-20,000 Hz

6dB Downpoint 32 Hz 32 Hz

Nominal Coverage Angle
(-6dB from reference) 60° H, 50° V 60° H, 30° V

Sensitivity [1 watt (2.83v) @ 1m] 86dB 88dB
Nominal Impedance 8Ω 8Ω

Drivers 1" soft-dome tweeter 1" soft-dome tweeter

61⁄2" bass unit Dual 61⁄2" bass units

Weight 8 lbs. 14 lbs.

Depth In Wall 31⁄4"3

1

⁄4"

Cutout Dimensions (H x W) 113⁄4 x 75⁄8"18

5

⁄8 x 75⁄8"

Outer Dimensions (H x W) 131⁄2 x 93⁄8"20

3

⁄8x 93⁄8"

Frame

Our anodized aluminum frame
holds the speaker system rigidly
in the wall, reducing vibrations
which cause distortion.