Amps & Preamps​

Amps & Preamps at Rectangle Triangle — over 150 products.

Brands here include Ashly, Heritage Audio.

Ships across Canada, or pick up in store on Rue Atateken in Montréal.

Warm Audio All-Analog Studio Re-Amper With Independent Preamp & Re-Amp Signal Paths
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Warm Audio All-Analog Studio Re-Amper With Independent Preamp & Re-Amp Signal Paths

$749.00
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Warm Audio Direct Box Passive DI Box For Electric Instruments
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Warm Audio Direct Box Passive DI Box For Electric Instruments

$269.00
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Warm Audio Direct Box Active DI Box For Electric Instruments
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Warm Audio Direct Box Active DI Box For Electric Instruments

$319.00
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Warm Audio Warmdrive guitar effects pedal with overdrive, featuring a compact stompbox design and control knobs for tone shaping.
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Warm Audio Warmdrive Amp-In-A-Box Overdrive Effects Pedal

$239.00
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Warm Audio classic tube EQ with 2-band Pultec style design, vintage tube equalizer featuring transformer-balanced I/O.
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Warm Audio 1-channel, 2-band Tube EQ with Transformer-balanced I/O Classic Vintage Pultec Style Tube Equalizer

$1,199.00
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Warm Audio Dual Channel FET Compressor Rev D with clean gain and discrete FET for dynamic control, shown on product card.
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Warm Audio Dual Channel FET Comp Rev D Clean Gain Discrete FET

$1,849.00
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Warm Audio Dual Channel FET Comp Rev A Blue Stripe Vintage FET
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Warm Audio Dual Channel FET Comp Rev A Blue Stripe Vintage FET

$1,849.00
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Warm Audio Single Channel FET Compressor Rev D showing front panel with control knobs and input/output connections.
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Warm Audio Single Channel FET Comp Rev D Clean Gain Discrete FET

$1,199.00
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Warm Audio Single Channel FET Comp Rev A Blue Stripe Vintage FET
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Warm Audio Single Channel FET Comp Rev A Blue Stripe Vintage FET

$1,199.00
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Warm Audio 1-channel tube optical compressor with discrete signal path and custom optical photocell, used for dynamic control in audio production.
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Warm Audio 1-channel Tube Optical Compressor with All-discrete Signal Path, Custom Optical Photocell, and Cinema

$1,499.00
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SurgeX SA20 standalone 20-amp power conditioner with two outlets for advanced surge protection and power conditioning.

SurgeX SA20 Standalone 20-amp Power Conditioner/Surge Protector with 2 Outlets

$1,190.00
SurgeX SA15 standalone 15-amp surge protector and power conditioner with two outlets for advanced power protection.

SurgeX SA15 Standalone 15-amp Surge Protector/Power Conditioner with 2 Outlets

$1,120.00
Lindell Audio PEX500 1-channel transformer-coupled passive EQ in a compact preamp and channel strip unit, with knobs and input jacks.
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Lindell Audio PEX500 1 Channel Transformer Coupled Passive EQ

$449.00
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Lindell Audio 7X500VIN vintage transformer-coupled channel compressor and limiter on a rack mount unit.
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Lindell Audio 7X500VIN 1 Channel Transformer Coupled Vintage Comp / Limiter

$499.00
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Lindell Audio 7X500 1-channel FET feedback compressor and limiter unit with controls and display on a professional audio rack.
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Lindell Audio 7X500 1-Channel FET Feedback Compressor / Limiter

$449.00
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Lindell Audio 77X500 500 Series stereo FET compressor module with control knobs and input/output jacks.
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Lindell Audio 77X500 500 Series Stereo FET Compressor

$999.00
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Heritage Audio UT VintageDirectBox large transformer direct box for professional audio recording and guitar/bass direct input
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Heritage Audio Ut Vintagedirectbox Vintage-Style Large-Transformer Direct Box

$599.00
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Heritage Audio UT Replaybox dual transformer reamplification box, a professional preamp and channel strip for studio use.
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Heritage Audio Ut Replaybox Dual Transformer Reamplification Box

$469.00
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Heritage Audio Tubecessor optical tube compressor for signal processing, featuring vintage-style controls and tube-based design.
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Heritage Audio Tubecessor Tubesessor Optical Tube Compressor

$2,999.00
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Heritage Audio Symph EQ Master Bus stereo asymptotic equalizer, featuring knobs and controls on a professional audio equipment panel.
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Heritage Audio Symph Eq Master Bus Stereo Asymptotic Equalizer

$2,399.00
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Heritage Audio Successor stereo bus compressor for signal processing, showing the front panel with control knobs and meters.
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Heritage Audio Successor Stereo Bus Compressor

$2,499.00
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Heritage Audio RAMSYSTEM2000 desktop monitoring system with Bluetooth, featuring sleek black speakers and control panel.
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Heritage Audio RAMSYSTEM2000 Desktop Monitoring System with Bluetooth

$1,599.00
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Heritage Audio P-DI-2 passive 2-channel vintage-style direct box with ground lift, -15dB pad, and thru outputs for professional audio.
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Heritage Audio P-DI-2 Passive 2-channel Vintage-style Direct Box with Ground Lift, -15dB Pad, and Thru Outputs

$299.00
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Heritage Audio P Di One passive 1-channel direct box with ground lift, -15dB pad, and thru output, vintage-style design.
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Heritage Audio P Di One Passive 1-channel Vintage-style Direct Box with Ground Lift, -15dB Pad, and Thru Output

$184.00
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Heritage Audio Motor City EQ Mono 7-band graphic equalizer, professional audio preamp and channel strip component.
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Heritage Audio Motor City Eq Mono 7-band Graphic EQ

$2,599.00
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Heritage Audio HA73EQJR 500 Series EQ module for signal processing, showing front panel with control knobs and brand logo.
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Heritage Audio HA73EQJR 500 Series EQ

$1,799.00
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Heritage Audio HA670N Herchild Next Gen 670N stereo tube compressor and limiter, digital signal processing device.
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Heritage Audio HA670N Herchild Next Gen 670N Stereo Tube Compressor/Limiter

$4,999.00
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Heritage Audio HA609A 2-channel British-spec compressor and limiter with transformer, shown in a professional studio setting.
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Heritage Audio HA609A 2-channel British-Spec Compressor / Limiter With Transformer

$2,999.00
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Heritage Audio Britstrip 73-style channel strip with EQ and diode bridge compressor, featuring vintage-inspired audio processing components.
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Heritage Audio Britstrip 73-Style Channel Strip with EQ and Diode Bridge Compressor

$3,249.00
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Heritage Audio Baby Ram 2-channel passive monitoring system with sleek black controls and connection ports on a professional audio setup.
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Heritage Audio Baby Ram 2-channel Passive Monitoring System

$299.00
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Heritage Audio 73-DI-ONE vintage-style active 1-channel direct box with ground lift, -15dB pad, and thru output.
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Heritage Audio 73-DI-ONE Active 1-channel Vintage-style Direct Box with Ground Lift, -15dB Pad, and Thru Output

$334.00
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Heritage Audio 73-DI-2 vintage-style 2-channel active direct box with ground lift, -15dB pad, and thru outputs.
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Heritage Audio 73-DI-2 Active 2-channel Vintage-style Direct Box with Ground Lift, -15dB Pad, and Thru Outputs

$499.00
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Golden Age Project COMP554MK2 500-Series vintage-style compressor for signal processing, showing controls and front panel.
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Golden Age Project COMP554MK2 500-Series 2254 Vintage Style Compressor

$649.00
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Black Lion Audio Seventeen FET Limiting Amplifier with custom output transformer for signal processing and audio enhancement.

Black Lion Audio Seventeen FET Limiting Amplifier with Custom Output Transformer

$1,099.00
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Black Lion Audio PreAmp PSU Used With BLA And GAP

$60.00
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Black Lion Audio Eighteen 1-channel preamp and channel strip with input/output CineMag transformers, featuring a sleek black finish.

Black Lion Audio Eighteen 1-Channel Channel Strip with Input / Output CineMag Transformers

$1,399.00
Black Lion Audio Auteur DT transformer-coupled desktop preamplifier with control knobs and input/output jacks.
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Black Lion Audio Auteur Dt Transformer-Coupled Desktop Preamplifier

$399.00
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Ashly nXe Series NXE8004 4-channel 800W power amplifier with programmable outputs and Ethernet control, shown in the image.
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Ashly nXe Series NXE8004 4-Channel 800W Power Amplifier with Programmable Outputs & Ethernet Control

$4,399.00
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Ashly TRA4150 rackmount power amplifier with 4 channels, 70V/100V transformer, displaying front panel with controls and indicators.
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Ashly TRA4150 Rackmount 4-Channel Power Amplifier with 70V/100V Transformer - 40 Watts per Channel at 8 Ohms

$2,639.00
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Ashly PEMA-8250.70 Protea media amplifier with 8x8 processor and 8-channel 250W 70V power amplifier in a professional audio setup
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Ashly PEMA-8250.70 Protea Equipped Media Amplifier 8x8 Processor + 8 channel Amp (250 W, 70 V)

$5,299.00
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Ashly NXE3.04 network power amplifier with multiple input and output ports, compact design, and digital controls.
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Ashly NXE3.04 Network Power Amplifier

$7,149.00
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Ashly NXE1.54 network power amplifier showing front panel with control knobs and indicator lights.
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Ashly NXE1.54 Network Power Amplifier

$6,199.00
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Ashly NE8250.70PEC 8-channel network-enabled power amplifier with Protea DSP and CobraNet option card, showing control panel and connections.
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Ashly NE8250.70PEC 8-Channel Network Enabled Power Amplifier with Protea DSP and CNM-2 CobraNet Option Card

$6,399.00
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Ashly NE8250 8-channel network-enabled power amplifier with 8 x 250W output at 4 ohms, featuring digital controls and connections.
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Ashly NE8250 8-Channel Network Enabled Amplifier (8 x 250W @ 4 Ohms)

$3,569.00
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Ashly NE24.24MT-OUTPUT-CARD expansion module for Protea 24.24M digital signal processing matrix processor with four outputs.
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Ashly NE24.24MT-OUTPUT-CARD 4-Output Expansion Module for Protea 24.24M Matrix Processor

$649.00
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Ashly NE24.24MT-INPUT-CARD expansion module for Protea 24.24M digital signal processing matrix processor.
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Ashly NE24.24MT-INPUT-CARD 4-Input Expansion Module for Protea 24.24M Matrix Processor

$649.00
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Ashly KLR5000 power amplifier with dual 2500W output at 2 ohms, 1700W at 4 ohms, and 1000W at 8 ohms, front view.
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Ashly KLR5000 Power Amplifier 2x (2500W @ 2)(1700W @ 4)(1000W @ 8)Ohms

$3,069.00
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Ashly FX-60.4 FX Series 250W 4-channel compact Class D power amplifier with front panel controls and ventilation.
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Ashly FX-60.4 FX Series 250W 4 Channel 1/2RU Compact Class D Multi Mode Power Amplifier

$1,349.00
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