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  1. Home
  2. Triangle Speakers
  3. Passive Floor-standing Speakers
Triangle Delta Review
Triangle Signature Delta - Front View

Main Features

  • 1" Horn-Loaded Tweeter
  • 6.5" Midrange
  • 2 x 6.5" Fibreglass Woofer
  • 35-22k Hz Frequency Response
  • 92 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: 60-300watts
  • Weight:72.75 lbs / 33.00 kg
  • Dimensions(HxWxD): 46-1/16"x9-3/16"x14-5/8" / 1170.0 x 233.0 x 372.0mm
MSRP: $6,000 (list price)
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Triangle Signature Delta Review
Triangle Signature Delta Triangle Signature D...
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Triangle Signature Delta is a 3-way Passive Bass Reflex Floor-standing speaker by Triangle. It was released in 2022. It features a 1" Horn-Loaded Tweeter, 1 x 6.5" Midrange and 2 x 6.5" Fibreglass Woofer.

The Alpha minus one bass driver, for rooms of 15 to 50 square metres by Triangle's own reckoning.

The speaker has a frequency range of 35-22k Hz and a sensitivity of 92 dB. Triangle Signature Delta has an MSRP of 6000$ per pair.

Room Size Suitability

The size of the room where you plan to use the Triangle Signature Delta is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:

Listening Environment* Suitability
Near-fieldBad
Small RoomPoor
Mid-size RoomAverage
Large RoomGood
Very Large RoomAverage

(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2. Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

Triangle's Signature Series of Loudspeakers

Delta is a member of Triangle's Signature series of Passive speakers. Below you can see the main specs of these speakers.

Triangle Signature Series Speakers
Model Frequency SensitivityImpedance Woofer
Triangle Signature Alpha
Compare
32-22k Hz 92 dB8Ω 3 x 6.5"
Triangle Signature Delta
35-22k Hz 92 dB8Ω 2 x 6.5"
Triangle Signature Theta
Compare
45-20k Hz 90 dB8Ω 1 x 6.5"


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Frequency Response of the Triangle Signature Delta Speaker

Triangle Signature Delta has a Frequency response range of 35-22k Hz at ±3dB and Power Range of 60-300 watts. With a minimum frequency of 35 Hz, Delta delivers deep bass that will likely satisfy most listeners, especially those who enjoy music. However, movie enthusiasts and music fans who prefer a full range of sound may still benefit from adding a subwoofer.

Visit our Powered Subwoofers section to find out more about the available subwoofer options.

Here we have a comparison of how Delta's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Floor-standing Speakers
Triangle Signature Delta
Min
Average
Max
High Frequency
Floor-standing Speakers
Triangle Signature Delta
Min
Average
Max

Among the speakers in our database with a max MSRP price of 10000$ (Pair), these are the 5 Passive Floor-standing speakers that have the deeper bass levels than the Triangle Signature Delta's 35Hz:

  • PSB Synchrony T600 with Low Frequency of 24 Hz (Compare w/ Delta)
  • KLH Kendall with Low Frequency of 25 Hz (Compare w/ Delta)
  • GoldenEar Triton Five with Low Frequency of 26 Hz (Compare w/ Delta)
  • Monitor Audio Silver 500 7G with Low Frequency of 27 Hz (Compare w/ Delta)
  • MartinLogan Motion XT F200 with Low Frequency of 27 Hz (Compare w/ Delta)

Crossover frequency of the Triangle Signature Delta?

Delta is a 3-way speaker and its crossover frequency between the woofer and the midrange set to Hz and the Crossover frequency between the midrange and the tweeter is set to Hz.

Impedance and Sensitivity

Triangle Signature Delta's nominal impedance level is 8 ohms but can go down to as low as 3.2 ohms, and has a sensitivity of 92 dB.

Sensitivity
Floor-standing Speakers
Triangle Signature Delta
Min
Average
Max

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Triangle Signature Delta is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

92dB of the Triangle Signature Delta is considered a high sensitivity compared to average stereo speaker which makes Delta an easy to drive from Sensitivity perspective. If you are planning to power your speaker with a Tube amp which are generally very low power, the Triangle Signature Delta will be a good choice.

Minimum Impedance of the Triangle Signature Delta

Even though the nominal impedance of the Delta is 8 ohms, the minimum impedance level of this speaker according to Triangle is 3.2 ohms Triangle Signature Delta so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.

Check the amplifiers that are in a similar price range to the Triangle Signature Delta:

  • Integrated Amps under 5,000 USD
  • Integrated Amps under 10,000 USD
  • Integrated Amps under 20,000 USD
  • All Integrated Amplifiers

Input Type

Delta features Binding post type connectors. Bi-amping and Bi-wiring are not possible.

Triangle Signature Delta External Dimensions and Weight

Triangle Signature Delta has external dimensions of (Height x Width x Depth) 46-1/16 x 9-3/16 x 14-5/8inch (1170.0 x 233.0 x 372.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of Triangle Signature Delta is approximately 866.8cm2 / 134.4inch2.

Weight

The Triangle Signature Delta weighs 33.00kg / 72.6lbs per piece. Here is a comparison of how Delta's weight compares with the average, max and min weights in its class.

Weight
All Floor-standing Speakers
Triangle Signature Delta
Min
Average
Max
Weight
Floor-standing Speakers under $10000
Triangle Signature Delta
Min
Average
Max

Cabinet type and Materials

Triangle Signature Delta has a Bass Reflex type cabinet. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.

Port Position

Triangle Signature Delta is a front-firing port speaker , which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.

Does the Triangle Signature Delta come with a Grille?

Delta comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

Recommended Accessories

Here is a list of accessories that we think you may need for the Triangle Signature Delta.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

Official Product Page

Official manufacturer's product page for the Triangle Signature Delta speaker can be found below:
Official Product Page for Triangle Signature Delta

Warranty

5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

Triangle Signature Delta Alternatives in Passive Floor-standing Speakers
Model Type Sensitivity Impedance Frequency
Triangle Signature Theta
Compare
2-way 90 dB 8 ohms 45-20k Hz
Triangle Signature Alpha
Compare
3-way 92 dB 8 ohms 32-22k Hz
PSB Synchrony T600
Compare
3-way 89 dB 4 ohms 24-23k Hz
KLH Kendall
Compare
3-way 96 dB 8 ohms 25-23k Hz
GoldenEar Triton Five
Compare
2-way 90 dB 8 ohms 26-35k Hz
MartinLogan Motion XT F200
Compare
3-way 92 dB 4 ohms 27-25k Hz
Monitor Audio Silver 500 7G
Compare
3-way 90.5 dB 8 ohms 27-35k Hz
Frequently Asked Questions about Triangle Signature Delta
What is the External Dimensions of Triangle Signature Delta
What is the Speaker Sensitivity of Triangle Signature Delta
is the Triangle Signature Delta an easy to drive speaker?

Triangle Signature Delta Detailed Specifications

General
BrandTriangle
Full Model NameTriangle Signature Delta
Speaker Type3-way Floor-standing
Power Range60-300 watts
Sensitivity92 dB
Impedance8 ohms
Frequency Response35-22k Hz
Release Date2022
DRIVERS
Woofer Size6.5-inch
Woofer CompositionFibreglass
Tweeter Size1-inch
Tweeter TypeHorn-Loaded
Midrange Size6.5-inch
Crossover freq280Hz and 2750Hz
Port Positionfront

CONNECTIONS
Connector TypeBinding post
Biamp InputsNo
Port Positionfront
PHYSICAL SPECS
Height1170.0mm ( 46-1/16-inch)
Width233.0mm ( 9-3/16-inch)
Depth372.0mm ( 14-5/8-inch)
Height1170.0mm ( 46-1/16-inch)
Weight33.00kg ( 72.75 lbs)
EnclosureBass Reflex
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Years
Labor Warranty5 Years
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