SKU: 51758637258

Martin Audio A40TB 4 Inch Passive Two-way On-wall Loudspeaker with 70/100V Transformer

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Description

Martin Audio A40TB 4 Inch Passive Two-way On-wall Loudspeaker with 70/100V TransformerThe Martin Audio A40TB 4 Inch Passive Two way On wall Loudspeaker with 70 100V Transformer is a two way passive speaker with an elegant design that is perfect for architectural environments that require high fidelity sound from an unobtrusive, ultra compact enclosure. It brings class leading performance, reliability and value to a wide range of commercial sound applications from retail outlets, bars and restaurants to corporate offices and convention

The Martin Audio A40TB 4 Inch Passive Two-way On-wall Loudspeaker with 70/100V Transformer is a two-way passive speaker with an elegant design that is perfect for architectural environments that require high-fidelity sound from an unobtrusive, ultra-compact enclosure. It brings class-leading performance, reliability and value to a wide range of commercial sound applications from retail outlets, bars and restaurants to corporate offices and convention centers.

The A40T is the perfect choice for background and foreground systems which require superior performance. Its Martin Audio signature sound characteristic also provides a seamless sonic transition within a multi-zoned complex using larger Martin Audio systems such as CDD or Blackline X. Comprising a 4” (100mm) LF driver and a 0.75” (19mm) silk-dome HF driver on a 110° x 80° horn, it handles 40W AES, 160W peak and can produce 109dB peak output at 1 meter. It has a smooth frequency response and strong bass reproduction that extends down to 70Hz.

The A40T incorporates a high-quality transformer for 70V/100V line operation, with transformer taps selected by a rotary switch. The recommended amplifier is the VIA5002 in conjunction with a suitable line transformer. For full-bandwidth protection, the low and high-frequency sections are individually protected against overload. Available in black or white as standard, it can be readily painted to match any décor, and can be wall-mounted vertically or horizontally using the wall bracket supplied. In addition, for general outdoor use the cabinet only requires the additional waterproof connector cover.

The VIA5002 amplifier in combination with a Martin Audio DX0.5 controller will be perfect partners for small scale efficient installations, or with the DX4.0 controller for larger more complex installations, which could then also be managed by Martin Audio’s VU-NET control software platform. The Martin Audio SX110 subwoofer will extend the bandwidth of ADORN on-wall speakers and is ideal for foreground music applications which require increased impact and low frequency performance.

Product Specification:  

Type: Ultra-Compact passive two-way system, front ported bass reflex

Rated Power: 40W AES, 160W peak

Recommended Amplifier: VIA5002 [In conjunction with suitable line transformer]

Sensitivity: 87dB/1W/1m

Maximum SPL: 109dB peak

Nominal Impedance: 16Ω

Dispersion (-6DB): 110° H x 80° V

Crossover: 3kHz passive (LF and HF auto-resetting fuses)

Recommended High-Pass Filter: 60Hz 24dB/oct

Enclosure: ABS, UL 94V-0 rated

Finish: Black

Grille: Perforated steel

Connectors: Push Terminals

Fittings: Wall bracket included

Dimensions: (W) 4.9in X (H) 7.9in X (D) 4.5in

Weight: 4.7lbs

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 51758637258

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4.8 ★★★★★
Based on 13 reviews
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Verified Purchase
the agitator
Port Orchard, US
★★★★★ 4
Penny Loafer
Size: 11 Wide, Color: Burgundy Polished Full Grain
I am ending them bak and will order the sae shoe at size 10 1/2. Most shos I fit are 11 however these were too large. They are a beautiful shoe! I will ofder a 10 1/2
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2025
H
Verified Purchase
Hugh62
Los Angeles, US
★★★★★ 1
Poor quality control - maybe outlet store leftovers
Size: 11.5, Color: Burgundy Polished Full Grain
The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect. Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.
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Reviewed in the United States on July 21, 2025
B
Verified Purchase
BetterEveryDay
Massapequa, US
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
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Reviewed in the United States on December 18, 2025
T
Verified Purchase
tjw
Pawtucket, US
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
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Reviewed in the United States on February 12, 2026
A
Verified Purchase
Anthony C.
Birmingham, US
★★★★★ 5
Penny loafers - best new old style
Size: 10, Color: Burgundy Polished Full Grain
These fit great. Real old school style reborn as original. Comfortable leather and looks great with jeans or dress pants.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2025

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