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Deaf Bonce MLA-80.4XS Review: A Palm-Sized 4-Channel Amp for Hidden Installs

Oct 2
6 min read

Updated: Oct 6

The Deaf Bonce MLA-80.4XS is a compact four-channel Class D amplifier from the Machete MLA XS series, rated at 80 W RMS per channel into 4 Ω and 125 W into 2 Ω at 14.4 V, in a case measuring just 151 x 83 x 35 mm. Its India MRP is ₹31,990, which is more than larger amplifiers of similar power: ₹14,000 above the Class AB MLA-4080 and ₹2,000 above the Class D MFA-4.80. It suits an install that has to disappear, under a seat or behind a panel, driving the Deaf Bonce midranges whose manuals list it, or a modest component set. See today's price on our MLA-80.4XS product page.


Deaf Bonce MLA-80.4XS compact four-channel Class D car amplifier

Quick summary

  • 80 W x 4 at 4 Ω, 125 W x 4 at 2 Ω, or 250 W x 2 bridged into 4 Ω.

  • A 151 x 83 x 35 mm case weighing 0.75 kg packed, small enough to consider for under-seat mounting.

  • The manual lists RCA inputs only and no integrated fuse.

  • Deaf Bonce's manuals for the HM-60 PRO and Machete Lite 60 midranges list it as a recommended amplifier.


Deaf Bonce MLA-80.4XS specifications

Specification

Machete MLA-80.4XS

Type

Compact four-channel Class D amplifier

RMS power at 4 Ω (14.4 V)

80 W x 4

RMS power at 2 Ω (14.4 V)

125 W x 4

Bridged RMS power at 4 Ω

250 W x 2

Minimum load

2 Ω per channel, 4 Ω bridged

Frequency response

20 Hz – 20 kHz

Filters

High-pass or low-pass, 40–400 Hz, 12 dB/oct, per channel pair

Input sensitivity

0.4–8 V

Inputs

RCA, with a 2-channel or 4-channel input mode switch

Damping factor

At least 180

Signal-to-noise ratio

At least 85 dB

Operating voltage

9–15 V

Terminals

4 AWG power, 8 AWG speaker

Integrated fuse

None

Dimensions

151 x 83 x 35 mm

Weight (packed)

0.75 kg

India MRP

₹31,990


Power, filter, damping, terminal and size figures come from Deaf Bonce's MLA-80.4XS product page and match our listing. Input sensitivity, the input arrangement and the fuse note come from the model's own owner's manual.


Under-seat installs: what fits and what to check

At 151 x 83 x 35 mm, the MLA-80.4XS is small enough to consider for the space under a front seat, inside a dashboard cavity or behind a boot side trim, places a full-size amplifier simply can't go. That matters in hatchbacks and compact sedans, where boot space is precious, and for owners who want an upgrade that leaves the car looking stock.


Before choosing a spot, check three things. First, clearance: move the seat through its full travel and tilt range, because seat rails and springs can crush a box mounted carelessly. Second, wiring: many cars route seat-belt, airbag and seat-sensor wiring under the seats, and none of it should be disturbed. Third, airflow: a compact Class D amplifier wastes little energy, but sealed in a carpeted cavity during a Delhi summer it still has nowhere to dump heat. The manual stresses fastening the amplifier properly, which is essential if it sits near your feet.


What the small size costs you

The compromises are written into the paperwork. The manual lists RCA inputs only, so a factory head unit needs a line output converter such as the Machete M6C, or a DSP with high-level inputs such as the M8-DSP. Each channel pair has one 40–400 Hz filter with an HPF, flat or LPF switch, enough for high-passing door speakers or low-passing a bridged subwoofer, but not for active tweeter crossovers. The product page and our listing add that the low-pass and high-pass filters can work at the same time; the manual shows only that one switch per channel pair, so we describe the filters as the manual does.


There is also no integrated fuse, so the fuse holder the manual places within 40 cm of the battery's positive terminal is the only protection for the power cable. The 4 AWG power terminal is generous for such a small box, which helps when the cable has to run the length of the cabin under the carpet.


Pairing it with Deaf Bonce speakers

Deaf Bonce's own manuals for the Machete Lite 60 (80 W RMS) and Hannibal HM-60 PRO (130 W RMS) midranges list the MLA-80.4XS among their recommended amplifiers. The Lite 60 is the neater match on power: its 80 W rating equals the amplifier's 4 Ω output, and its manual's 12 dB/oct high-pass at 250–350 Hz falls inside the 40–400 Hz filter range. For a conventional door upgrade, the 80 W RMS MFC-615 component set is a comparable match on power; that pairing is ours, not Deaf Bonce guidance.


Bridging channels 3 and 4 gives up to 250 W into 4 Ω for a small subwoofer, while channels 1 and 2 run the front speakers. Across all four channels at 2 Ω, total output is 500 W, modest by the standards of this range, so a healthy battery and proper wiring are a sound starting point.


What owners and reviewers say about the Deaf Bonce MLA-80.4XS

When we checked in October 2026, we found no owner reviews, forum threads or independent tests of the MLA-80.4XS that we could read and verify. Deaf Bonce's page and the manual carry specifications only, and the large marketplaces and car forums we tried were blocked to us or silent on this model.


The nearest thing to an opinion on record is the manufacturer's own: its HM-60 PRO and Machete Lite 60 manuals list this amplifier among their recommended amplifiers, which is maker guidance rather than independent praise. If you have fitted an MLA-80.4XS, particularly under a seat, we'd like to hear how it has coped with heat.


MLA-80.4XS vs MLA-4080, MFA-4.80 and MLA-160.4

The Class AB MLA-4080 (₹17,990 MRP) has the same 80 W x 4 rating at 4 Ω, adds a high-level input and filters from 10 Hz to 12 kHz, and costs ₹14,000 less. But its 323 x 216 x 50 mm chassis needs more than five times the mounting area. The Class D MFA-4.80 (₹29,990 MRP) also matches the 80 W rating, at 233 x 152 x 55 mm, nearly three times the XS's footprint, for ₹2,000 less.


The MLA-160.4 (₹32,990 MRP) costs ₹1,000 more and doubles the 4 Ω rating to 160 W x 4 in a 222 x 111 x 44 mm case. If its box, about twice the XS's footprint, fits your chosen spot, it is the stronger buy; if it doesn't, the XS is the answer.


Who should buy it, and who shouldn't

Buy the MLA-80.4XS if space is the deciding factor, you have an aftermarket head unit or DSP with RCA outputs, and your speakers are around 80 W RMS, such as the Machete Lite 60 or MFC-615.


Look elsewhere if you have room for a larger amplifier, where the MLA-4080 saves money and the MLA-160.4 doubles the power, or if you want to keep a factory head unit without adding a converter or DSP.


Installation notes for Indian cars

Plan the cable route before you fix the amplifier: a 4 AWG power cable is thick and stiff, and needs a clean path through the firewall and under the carpet, away from seat runners. Fit the fuse near the battery first, ground the amplifier to bare metal close to its mounting point, and keep RCA leads away from the power cable.


If the amplifier goes under a seat, mount it to a bracket or board rather than loose on the carpet, and leave a gap for air. VA3 Car Studio in Ghaziabad offers professional installation and can build custom speaker pods or door baffles.


Price and where to buy

The Deaf Bonce MLA-80.4XS has an MRP of ₹31,990. Check today's price and stock on our Machete MLA-80.4XS listing, which describes it as a genuine Deaf Bonce product, and ask us about India warranty terms.



Deaf Bonce MLA-80.4XS - another view

The bottom line

The MLA-80.4XS makes sense for one reason: it puts four channels where nothing bigger will go. It does that with sensible ratings, and the manuals for Deaf Bonce's Lite 60 and HM-60 PRO midranges list it as a recommended amplifier. The price is high for 80 W per channel, the manual lists RCA inputs only and there is no internal fuse, so buy it when space really is the constraint, and fit it with care.


Deaf Bonce MLA-80.4XS FAQ

Will the Deaf Bonce MLA-80.4XS fit under a car seat?

It may, depending on the car. At 151 x 83 x 35 mm it is small enough to consider for under-seat spaces, but check seat-rail clearance through the full travel, avoid seat-belt and airbag wiring, and leave a gap for air. Ask us for advice on your car before ordering.


Does the MLA-80.4XS work with a factory head unit?

Not directly. Its manual lists RCA inputs only. Add a line output converter such as the Machete M6C, or a DSP with high-level inputs such as the M8-DSP, between the factory head unit and the amplifier.


Why does the Deaf Bonce MLA-80.4XS cost more than the MLA-4080?

Both are rated at 80 W x 4 into 4 Ω, but the MLA-80.4XS is Class D in a 151 x 83 x 35 mm case, while the Class AB MLA-4080 measures 323 x 216 x 50 mm. Deaf Bonce doesn't explain the ₹14,000 gap, and size alone doesn't account for it: the larger Class D MFA-4.80 (₹29,990 MRP) is only ₹2,000 cheaper than the XS.



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