Primare A35.8 Multi Channel Power Amplifier
Description
A35.8 – eight channel, fully bridgeable, balanced input amplifier
The A35.8 is Primare’s most powerful and flexible multi-channel amplifier, designed to serve the needs of virtually any high-performance multi-channel system through its ability for each pair of channels to be bridged to mono for an incredible level of power delivery and system building options, including 1500 watts of total output in a fully bridged bi-amped stereo configuration. RCA and XLR balanced input options are offered for each of the eight channels. Power output is rated as 150 watts into 8 ohms, 300 watts into 4 ohms, and 400 watts into 2 ohms at 1kHz. Each pair of outputs can be bridged, capable of producing 740 watts into 8 ohms (clipping protection limited), 750 watts into 4 ohms, and 450 watts into 2 ohms at 1kHz.
Key Features
XLR and RCA inputs for each of eight channels of amplification with 150 watts per channel output into 8 ohms, with a maximum output of 1500 watts.
Each pair of output channels can be bridged, allowing the amp to provide power to virtually any multi-channel speaker configuration, either on its own or with an A35.2 stereo amplifier.
For an extraordinarily powerful two-channel bi-amplified system, one fully bridged A35.8 delivers peak power of 4 x 375 watts or 750 watts per pair per channel.
Additional convenience features include auto-sense turn-on from standby and auto standby after an absence of input signal for twenty minutes which can be turned off allowing the A35.8 to remain on indefinitely if preferred.
Amplifier technology
The ingenious design of the A35.8 circuit layout provides the most direct delivery and even distribution of power from the power supply to the amp modules tucked into heatsinks that isolate them from any power supply noise. In turn, this innovative construction isolates the input and output stage from any noise the amp modules might produce. Input and output signals are delivered to and from the amp module through an uninterrupted ribbon of circuit board threaded through a channel in the heat sinks for the shortest possible signal path.
Status Indicator System
At start up, eight internal red LED lamps, one at the base of each amp module, will flash should clipping conditions occur, visible through the top cover from above.
Additionally, an eight LED warning system is located under the top cover at the front of the amp that will indicate the following:
-
On – DC is detected on the related amp module
-
Flashing – overheating on the related amp module
-
All lights cycling – power supply unit overheating
System Configurations
The bridging capabilities of the A35.8 allow it to be used in a variety of system configurations and has been designed to be partner perfectly with A35.2 stereo amplifiers to allow for a variety every multi-channel system configuration. A35.8 is the most powerful amplifier Primare has designed utilizing our proprietary UFPD 2 analog class D amplification technology making it ideal for use in powering the critical front array of speakers in a high-performance home cinema. Featuring balanced input and bridging capabilities, A35.2 produces 200 watts into 8 ohms and in bridged mode 800 watts into 8 ohms.
A few examples of the possible system configurations:
-
5.1 Channel System – bridge three pairs of outputs for Front Left, Right, and Centre speakers, with the remaining two outputs for a pair of rear speakers.
-
7.1 Channel System – bridge a pair of outputs for the Centre channel with remaining outputs for the remaining six speakers
-
5.1.2 Channel Atmos System – bridge a pair of outputs for the centre channel with remining outputs for the remaining six speakers
-
5.1.4 Atmos/DTS:X system - adds an A35.2 stereo amplifier for the Front Left and Right speakers, while using one bridged pair of outputs from the A35.8 for Centre, and the remaining outputs from the A35.8 for Surround Left and Right, Front Height Left and Right, and Rear Height Left and Right speakers.
-
7.1.2 Channel Atmos System – adding an A35.2 stereo amp for Front Left and Right speakers, bridge three pairs of outputs of the A35.8 for Centre, Rear Right and Left speakers, with the remaining pair of outputs for a pair of height speakers
-
7.1.4 Channel High Power System – three bridged A35.2 amps for Front Left, Right, and Centre speakers, and A35.8 for Rear, Surround, and Height speakers.
-
9.1.6 – two A35.8 amps, one pair of outputs bridged for Centre speaker, and
-
remaining outputs for Rear, Surround, and Height speakers.
-
13.1 Auro 3D system - uses two A35.8 amplifiers, with bridged pairs of outputs for the Front Left and Right speakers, and the remaining 11 outputs for the Centre speaker, Front Left and Right Height speakers, Surround Left and Right speakers, Middle Left and Right Height speakers, Rear Surround Left and Right speakers, Rear Left and Right Height speakers, and Top speaker.
-
Bi-amped Stereo - one A35.8 all pairs of outputs bridged providing peak power of 4 x 375 watts or 750 watts per pair per channel at 8 ohms in a stereo system.
This results in a naturally fast, clean, and agile sound over an ultra-wide frequency range, with exceptional headroom and ultra-low noise, capable of bringing to life even the most sophisticated systems, both multi-channel and bi-amped stereo.
Primare Design Philosophy
Primare products embody the Scandinavian design ideal of lagom – that sense of not too much or too little, but just right; everything in balance, proportion, and harmony.
Specifications:
Amplifier module | Hypex NCore500 |
Power supply | Primare APFC |
Speaker outputs: |
|
8 outputs with each pair bridgeable. | |
Output power at 1kHz: |
|
Output power bridged at 1kHz: |
|
Analogue inputs |
|
Inputs per channel: |
1 x RCA (L&R) 1 x XLR (L&R) |
Input impedance |
RCA: 15kΩ XLR: 36kΩ |
Input sensitivity |
RCA 150W 8Ω = 1.7V XLR 150W 8Ω = 3.4V |
Performance | |
Gain |
RCA 26dB XLR 20dB |
Frequency response |
20Hz – 20kHz +0.2/-0.5dB |
Distortion |
THD + N: < 0.005%, 20Hz – 20kHz |
Signal to noise |
>115 dB |
General | |
Control |
Trigger in/out RS232 Auto Sense: on/off Input: RCA/XLR Gain: +6db bridge mode only |
Power Consumption | Off: 0W Standby: <0.5W Operating: <65W |
Fuses |
Internal on printed-circuit board. Should only be replaced by a trained technician. |
Dimensions |
430 x 400 x 145 mm (w x d x h) with knobs and connectors 430 x 382 x 145 mm (w x d x h) without knobs and connectors |
Weight | 15 kg |
Colour | Black or titanium |