Audio T Verdict
The Spendor AC1 delivers clear, natural dialogue from a compact cabinet that is easy to accommodate beneath or above a television.
Its 15cm EP77 polymer driver produces an open and articulate midrange, helping speech remain intelligible without making voices sound unnaturally forward.
A smooth 22mm polyamide-dome tweeter handles the upper frequencies, maintaining the balanced and easy-going presentation associated with Spendor's stereo speakers.
The sealed cabinet keeps bass tuneful and controlled while allowing the AC1 to operate close to a wall or within suitable AV furniture.
It cannot match the larger AC2 or DC1 for bass weight and output, but for compact Spendor systems and smaller rooms, the AC1 is an excellent way to create a cohesive front soundstage.
Spendor AC1 Theatre Centre Speaker
The Spendor AC1 is a compact passive centre-channel speaker designed for home cinema and multichannel music systems.
Its sealed two-way cabinet contains a 15cm EP77 polymer bass and midrange driver and a 22mm polyamide-dome tweeter.
The AC1 is supplied individually with a removable magnetic grille and small polymer cabinet feet.
An AV Amplifier Is Required
The AC1 is a passive speaker and must be connected to the centre-channel output of a suitable AV receiver or multichannel power amplifier.
- No built-in amplification
- No HDMI or digital inputs
- No Bluetooth or Wi-Fi
- No automatic room calibration
- No built-in volume control
Spendor recommends amplifier power between 25W and 100W.
Compact Sealed-Cabinet Design
At 305mm wide, 165mm high and 188mm deep, the AC1 is considerably smaller than many conventional centre speakers.
Its sealed enclosure has no bass-reflex port, helping the speaker maintain controlled bass when positioned relatively close to a wall.
The compact proportions make it suitable for smaller televisions, living-room systems and AV furniture where a full-sized centre speaker would be difficult to accommodate.
15cm EP77 Polymer Driver
Spendor's proprietary 15cm EP77 polymer cone handles both bass and midrange frequencies.
The driver is mounted in a cast magnesium-alloy chassis and is designed to deliver a clear, natural vocal range with worthwhile projection from the small cabinet.
Its controlled behaviour helps dialogue, narration and on-screen effects remain easy to follow without adding obvious colouration.
22mm Polyamide-Dome Tweeter
A 22mm polyamide-dome tweeter reproduces frequencies above the 4.2kHz crossover point.
Its smooth presentation complements the EP77 driver, helping the AC1 blend naturally with Spendor stereo speakers across the front soundstage.
The speaker is designed to produce consistent results across a range of listening positions, making it suitable for systems with several seats.
Centre-Speaker Positioning
Place the AC1 centrally beneath or above the screen and as close to the picture as practical.
The front of the speaker should sit close to the front edge of the supporting shelf or cabinet rather than being pushed deeply into an enclosed space.
If the speaker must be positioned significantly below or above ear height, angle it towards the main listening area where the furniture or support allows.
Check the Supporting Surface
The shelf or AV cabinet must safely support the AC1's 5kg weight and complete footprint.
Leave enough space behind the cabinet for the recessed speaker terminals, cable and connectors.
AV Amplifier Setup
The AC1 has an 84dB sensitivity, 8-ohm nominal impedance and a stated minimum impedance of 6.6 ohms.
It presents a relatively amplifier-friendly load, although clean power and correct channel-level calibration remain important.
Once the speaker is in its final position, run the AV receiver's room-correction and level-calibration system. A crossover near 80Hz can provide a useful starting point when an active subwoofer is used, although the final setting should suit the room and system.
Match the Front Speakers Where Possible
A centre speaker works most convincingly when its tonal character complements the front left and right speakers.
The AC1 is designed to integrate with Spendor stereo products, making it particularly useful when adding home cinema to an existing Spendor music system.
Spendor AC1 or AC2?
Choose the AC1 When
- Space beneath the television is limited
- A compact 305mm-wide cabinet is required
- The room is small or moderately sized
- A 15cm driver provides sufficient output
- Discreet installation is a priority
Choose the AC2 When
- Greater dialogue scale and bass weight are required
- The furniture can accommodate a 470mm-wide cabinet
- A larger 18cm driver is preferred
- The room or listening distance is greater
- Additional output and headroom are useful
The Spendor AC2 uses a larger cabinet and 18cm driver to provide deeper bass, greater sensitivity and increased scale.
Matching a Spendor System
Compact Surround Options
- Spendor AW1 on-wall speakers
- Matching Spendor standmount speakers
- Matching Spendor floorstanding speakers
- A suitable active home cinema subwoofer
Spendor Products and Audio T Guides
Key Features
- Compact centre-channel speaker
- Supplied individually
- Passive two-way design
- Sealed cabinet construction
- 15cm EP77 polymer bass and midrange driver
- Cast magnesium-alloy driver chassis
- 22mm polyamide-dome tweeter
- 4.2kHz crossover frequency
- 55Hz to 25kHz in-room response
- 84dB sensitivity
- 8-ohm nominal impedance
- 25W to 100W recommended amplification
- Single pair of recessed binding posts
- Close-wall placement flexibility
- Removable magnetic grille
- Designed and manufactured in the UK
Frequently Asked Questions
Is the Spendor AC1 supplied individually?
Yes. The product contains one centre-channel speaker.
Does it contain an amplifier?
No. It requires a suitable AV receiver or multichannel power amplifier.
Is it sealed or ported?
The AC1 uses a sealed cabinet with no bass-reflex port.
Can it be positioned close to a wall?
Yes. Its sealed design helps it maintain controlled bass when placed relatively close to a wall.
What driver does it use?
It uses one 15cm Spendor EP77 polymer bass and midrange driver.
What tweeter is fitted?
The AC1 uses a 22mm polyamide-dome tweeter.
What is the frequency response?
Spendor specifies a typical in-room response of 55Hz to 25kHz.
What amplifier power is recommended?
Spendor recommends between 25W and 100W.
What is the nominal impedance?
The nominal impedance is 8 ohms, with a stated minimum of 6.6 ohms.
How sensitive is it?
Spendor specifies a sensitivity of 84dB for one watt measured at one metre.
Can it be bi-wired?
No. The AC1 uses one pair of recessed precision binding posts.
How large is it?
It measures 165mm high, 305mm wide and 188mm deep, excluding the terminals.
How much does it weigh?
The AC1 weighs approximately 5kg.
Which finishes are available?
Audio T currently lists Black Oak, Cherry, Oak, Satin White and Walnut, subject to availability.
Is a magnetic grille included?
Yes. A removable magnetic grille is supplied.
Why Buy From Audio T?
- Demonstrations with suitable AV receivers
- Matching advice for Spendor stereo speakers
- Centre-speaker placement and furniture checks
- AV crossover and bass-management guidance
- Subwoofer matching and integration support
- Room-correction and calibration advice
- Speaker-cable and connection guidance
- Home demonstrations may be available
- Part exchange may be available on suitable equipment
- Ongoing system and setup support
Contact your local Audio T store to discuss matching the Spendor AC1 to your AV amplifier, front speakers and room.