Does the HTP-1 need a power amplifier?

Yes. The Monoprice HTP-1 is a processor with no built-in amplifiers: it sends line-level signals for 15 channels to power amplifiers, which drive the speakers.

Does the HTP-1 support Dolby Atmos?

Yes. It decodes Dolby Atmos and DTS:X.

How many subwoofer outputs does the HTP-1 have?

1 subwoofer output. Room correction is Dirac Live.

How big is the HTP-1?

The Monoprice HTP-1 measures 434 × 145 × 305 mm (17.1 × 5.7 × 12 in, width × height × depth).

Monoprice HTP-1

Name: Monoprice HTP-1
Brand: Monoprice
Price: 3999.99 USD

Monolith series

The Monoprice HTP-1 is an AV processor: it decodes Dolby Atmos and DTS:X for up to 15 speakers, but has no amplifiers of its own, so every speaker needs a power amplifier.

Channels

Decoded and processed

Amplifiers

None

Pair it with power amps

Sub outputs

For one subwoofer

$4,000 each (MSRP, July 2026)

Check it with your speakers See it in your room

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Which speaker layouts can it run?

The HTP-1 processes 15 speakers and powers none: each layout needs power amps. In a layout like 7.1.4, the 7 is floor speakers, the 1 a subwoofer and the 4 height speakers.

Stereo
Add a power amp
5.1
Add a power amp
5.1.2
Add a power amp
5.1.4
Add a power amp
7.1
Add a power amp
7.1.2
Add a power amp
7.1.4
Add a power amp

Which subwoofers connect to it?

It has 1 subwoofer output, and any powered subwoofer with a line-level input connects to it.

Connects
Powered subwoofers with a line-level input
17 in our catalogue

In its price range

All 17 subwoofers we checked

Connects17

Dayton Audio SUB-1200
80 W · 12-inch driver
Sony SA-CS9
115 W · 10-inch driver
Polk PSW10
50 W · 10-inch driver
Klipsch R-120SW
200 W · 12-inch driver
Polk Monitor XT12
50 W · 12-inch driver
Klipsch SPL-120
300 W · 12-inch driver
SVS SB-1000 Pro
325 W · 12-inch driver
Klipsch R-121SW
200 W · 12-inch driver
Rythmik Audio L12
300 W · 12-inch driver
SVS PB-1000 Pro
325 W · 12-inch driver
Monoprice M-12 V2
500 W · 12-inch driver
SVS SB-2000 Pro
550 W · 12-inch driver
SVS 3000 Micro R|Evolution
1,200 W · 9-inch driver
SVS SB-3000 R|Evolution
1,200 W · 13-inch driver
SVS PB-3000
800 W · 13-inch driver
SVS PB-4000
1,200 W · 13.5-inch driver
SVS PB-3000 R|Evolution
1,200 W · 13-inch driver

Plan your room around the HTP-1.

Draw your room in 3D, add your speakers, and see every connection checked and how loud the HTP-1 plays at your seat. Designing is free.

Build it in your room

HTP-1 specifications

Amplifier channels: 0
Processing channels: 15
Height formats: Dolby Atmos, DTS:X
Room correction: Dirac Live
Size: 17×6×12 in
Subwoofer outputs: 1
MSRP: $4,000 each (MSRP, July 2026)

Every value comes from the sources under References, last retrieved September 15, 2026. To check it against the rest of your system, use the compatibility checker.

Questions about the HTP-1

Does the HTP-1 need a power amplifier?: Yes. The Monoprice HTP-1 is a processor with no built-in amplifiers: it sends line-level signals for 15 channels to power amplifiers, which drive the speakers.
Does the HTP-1 support Dolby Atmos?: Yes. It decodes Dolby Atmos and DTS:X.
How many subwoofer outputs does the HTP-1 have?: 1 subwoofer output. Room correction is Dirac Live.
How big is the HTP-1?: The Monoprice HTP-1 measures 434 × 145 × 305 mm (17.1 × 5.7 × 12 in, width × height × depth).

References

Brand names are trademarks of their owners. Not affiliated with or endorsed by any manufacturer. 3D models are our approximations. Prices are manufacturer list prices (MSRP) as of the month shown. How we earn from buy links: affiliate disclosure.