Tru Technology Line-8 v2 8 channel Line Amp Conditioner | Previous Demo
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Everything Must Go Pricing
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Trade Show Display Models
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Tru Technology Line-8 v2
8-Channel Class A/B Line Amp Conditioner | Professional Signal Conditioning
Professional Signal Excellence
The Tru Technology Line-8 v2 represents a paradigm shift in automotive audio signal conditioning. Unlike generic line drivers that simply multiply voltage, this sophisticated Line Amp Conditioner employs audiophile-grade circuitry inspired by professional headphone amplifiers to deliver pristine, high-voltage signals that unlock the true potential of your amplifiers. Hand-built in California with meticulous attention to every detail, the Line-8 v2 addresses the fundamental challenge facing modern car audio: inadequate source unit output voltage that robs your system of dynamics, clarity, and noise-free performance.
Clinical Audio Transparency
Experience signal conditioning that is literally inaudible. With total harmonic distortion plus noise measuring less than 0.00006% (yes, that's five zeros after the decimal), the Line-8 v2 passes your music through with absolute transparency. This isn't a typo or marketing exaggeration—this is measurably the cleanest signal path available in automotive audio. The extraordinary >116dB signal-to-noise ratio ensures a completely silent background that reveals subtle musical details previously masked by system noise, delivering professional studio-grade transparency in your vehicle.
California Hand-Built Construction
Every Line-8 v2 is meticulously hand-assembled in California by skilled technicians who understand that signal conditioning requires surgical precision. From component selection to final calibration, each unit receives individual attention impossible with mass production. Premium audiophile-grade operational amplifiers, high-quality capacitors, and optimized grounding planes combine with careful hand-soldering to create a line conditioner that performs like professional studio equipment. This artisanal approach ensures consistent excellence and long-term reliability.
Precision Voltage Gain Architecture
The sophisticated 4.5:1 voltage gain architecture transforms weak source unit signals into robust drive voltages that high-performance amplifiers demand. Most head units struggle to produce even 1V RMS at safe listening volumes, forcing you to increase amplifier gain controls and introduce noise into your system. The Line-8 v2 boosts these marginal signals to optimal levels, allowing you to operate amplifier gains at lower settings for dramatically improved noise floor performance, superior dynamic range, and enhanced system headroom.
Audiophile-Grade Design Philosophy
Tru Technology rejected the commodity approach of cheap voltage multipliers. Instead, they designed the Line-8 v2 around professional headphone amplifier principles, with extraordinary attention to power supply purity, signal path optimization, and premium component selection. The regulated ±15V power supply maintains absolute stability regardless of charging system variations. Optimized grounding planes minimize interference. Audiophile operational amplifiers preserve sonic character. The result is world-class fidelity that transforms your entire audio system.
Technical Specifications
Engineering Excellence Measured with Laboratory Precision
🎚️ Topology
Class A/B
Line Amp Conditioner
🔊 Channel Configuration
4, 6, or 8CH Input
7 or 8CH Output
📈 Frequency Response
10Hz - 150kHz
±0.5dB
📊 Frequency Response
20Hz - 20kHz
±0.02dB
🔬 THD + Noise
<0.00006%
(Not a Misprint)
📡 Signal-to-Noise Ratio
Greater than 116dB
A-Weighted
🎵 Input Voltage Range
0.001V - 9.2V
Unity Gain Operation
⚡ Output Voltage
1V : 4.5V Gain Ratio
13V Peak Output
🔌 Power Supply
±15V Regulated
Constant Operation
⚙️ Input Voltage
9.5V - 15V DC
Wide Range Compatibility
🛡️ Fuse Requirement
1 Ampere
Protected Operation
📐 Dimensions
3.5" × 4.375" × 6"
Compact Design
⚖️ Weight
0.46 lbs
Lightweight Precision
🇺🇸 Origin
Made & Assembled
California, U.S.A.
The Problem with Modern Source Units
Understanding why your system needs professional signal conditioning
Inadequate Source Unit Output Voltage
Modern aftermarket head units face a critical limitation: inadequate output voltage. Even premium source units rated at 4V RMS often struggle to produce that voltage cleanly, and reaching maximum output requires running volume at 100%—a setting where distortion becomes inevitable. Industry best practices recommend system tuning at 75% volume to avoid distortion, but at this setting, even high-quality 4V head units may produce less than 1V RMS. Add multiple amplifiers to your signal chain, and watch voltage drop further as input impedances load down your source.
The Devastating Effects of Insufficient Signal Voltage
Weak signal voltage creates a cascade of performance compromises throughout your audio system. Insufficient drive voltage forces you to increase amplifier gain controls to achieve desired sound levels, but this adjustment simultaneously increases noise floor, introduces background hiss, and reduces dynamic range. Your music becomes compressed and lifeless, lacking the impact and presence that drew you to high-performance audio in the first place. Even worse, the elevated noise floor masks subtle musical details and reduces the sense of space and ambience that defines truly exceptional sound reproduction.
The Line-8 v2 Solution: Professional Signal Conditioning
The Line-8 v2 transforms your system by boosting source signals to optimal levels that high-performance amplifiers require. With robust 4.5:1 voltage gain, even marginal input signals become powerful drive voltages that allow you to reduce amplifier gain settings dramatically. Lower gain means superior noise rejection, reduced background hiss, and extended dynamic range. But unlike generic line drivers that color the sound or introduce their own noise, the Line-8 v2's extraordinary 0.00006% THD+N and >116dB S/N ratio ensure absolutely transparent signal conditioning. The result? Your amplifiers receive clean, high-voltage signals that unlock their full performance potential while your system achieves professional studio-grade noise floor performance.
Advanced Engineering Features
Professional-grade technology that sets the Line-8 v2 apart from generic line drivers
🎼 Audiophile Headphone Amplifier Architecture
Tru Technology designed the Line-8 v2 around professional headphone amplifier principles rather than commodity voltage multiplier circuits. This sophisticated approach prioritizes signal purity, power supply stability, and component quality above all else. Premium operational amplifiers selected for sonic transparency, optimized feedback networks for stability and bandwidth, and carefully designed signal paths with minimal trace lengths combine to create a conditioner that performs like professional studio equipment. The result is audibly superior to generic line drivers.
⚡ Regulated Dual-Rail Power Supply
The Line-8 v2's regulated ±15V power supply represents extraordinary attention to detail. While competitor products accept varying voltage and allow power supply noise into the signal path, Tru Technology's regulated design maintains absolutely constant ±15V rails regardless of charging system variations. This stability ensures consistent gain structure, prevents power supply modulation artifacts, and provides exceptional rejection of alternator whine and electrical noise. The constant voltage operation maintains performance integrity from cold start through full operating temperature.
🔬 Extended Frequency Response Bandwidth
The Line-8 v2's frequency response extends from 10Hz to 150kHz (±0.5dB), vastly exceeding the audible spectrum. This extended bandwidth isn't marketing hyperbole—it ensures perfect phase relationships within the audible range and eliminates any possibility of phase rotation or group delay artifacts. Within the critical 20Hz-20kHz range, response flatness is an astonishing ±0.02dB, ensuring that no frequency band receives emphasis or attenuation. Your music passes through with the tonal balance exactly as the artist intended.
🎯 Optimized Grounding Architecture
Ground plane optimization throughout the circuit board layout ensures the extraordinary >116dB signal-to-noise ratio. Separate analog and power grounds prevent digital noise injection. Star grounding topology eliminates ground loops. Wide copper ground planes provide low-impedance current return paths. This attention to grounding detail—often overlooked by competitors focused on cost reduction—enables the Line-8 v2 to maintain an absolutely silent noise floor even in electrically hostile automotive environments filled with ignition noise, alternator whine, and EMI.
🔧 Premium Component Selection
Every component in the Line-8 v2 signal path represents careful selection for audio performance rather than cost optimization. Audiophile-grade operational amplifiers deliver exceptional slew rate and bandwidth. High-quality capacitors exhibit minimal dielectric absorption and ESR. Precision resistors maintain tight tolerances across temperature ranges. Film capacitors in critical locations provide superior sonic characteristics compared to electrolytics. This obsessive component selection ensures that the Line-8 v2 maintains its extraordinary specifications throughout its operational life.
🌡️ Thermal Management Design
California-engineered thermal management ensures consistent performance across the extreme temperature variations encountered in automotive environments. Component selection prioritizes temperature stability. Circuit board layout facilitates heat dissipation. The compact form factor and efficient Class A/B topology minimize heat generation while maintaining performance. The result is an amplifier conditioner that performs identically whether operating in desert heat or winter cold, protecting your investment and ensuring consistent audio quality year-round.
Configuration Flexibility
Adaptable channel configuration for simple to complex system architectures
🎚️ Variable Channel Input Options
The Line-8 v2 accommodates 4, 6, or 8-channel input configurations, adapting to your specific system requirements. Simple front-stage systems utilize 4-channel input. Multi-amplified installations leverage 6-channel capability. Complex active crossover or multi-zone systems employ full 8-channel operation. This flexibility ensures the Line-8 v2 grows with your system evolution without requiring replacement.
🔊 Independent Output Channels
Seven or eight independent output channels provide precise signal routing to multiple amplifiers. Each output operates independently with isolated ground returns, preventing interaction between amplifier grounds and eliminating potential ground loops. Independent outputs allow for sophisticated system architectures with dedicated amplification for each speaker driver or system zone.
⚙️ Unity Gain Operation Mode
Unity gain operation from 0.001V to 9.2V input ensures compatibility with any source including high-voltage DSP outputs. When you need signal buffering and conditioning without voltage gain, the Line-8 v2 provides pristine unity gain operation. This flexibility allows strategic placement within your signal chain regardless of voltage levels before or after the conditioner.
🔌 Wide Input Voltage Range
The 9.5V-15V DC input voltage range accommodates virtually any vehicle electrical system. Operates properly during cranking when voltage sags. Maintains performance during charging when voltage rises. Works with both 12V and 14.4V nominal systems. The regulated power supply internally converts this varying input into stable ±15V rails for consistent audio performance.
📏 Compact Installation Footprint
At just 3.5" × 4.375" × 6" and weighing only 0.46 lbs, the Line-8 v2 fits virtually anywhere in your installation. The compact dimensions facilitate mounting in tight spaces behind dash panels, under seats, or in limited trunk areas. Despite the small size, the Line-8 v2 delivers full-size performance that belies its physical dimensions.
🎯 DSP Integration Compatibility
Perfect integration with digital signal processors and active crossover systems. Place the Line-8 v2 before your DSP to provide robust input signals, or after your DSP to boost channel outputs feeding multiple amplifiers. The transparent signal conditioning maintains DSP tuning integrity while providing the voltage gain needed for optimal amplifier operation. Unity gain mode allows pure signal buffering when needed.
🔧 Professional Installation Ready
Designed for professional installation with clearly marked terminals and straightforward wiring. 1-amp fuse requirement simplifies power distribution. Compact size facilitates hidden mounting. Independent output channels allow flexible amplifier distribution. The Line-8 v2 integrates seamlessly into sophisticated system architectures without compromise.
⚡ Multiple Amplifier Support
Ideal for systems utilizing multiple amplifiers where source unit output must drive several inputs simultaneously. The Line-8 v2's robust output stage easily drives multiple amplifier inputs without voltage sag or impedance loading issues. Independent outputs prevent interaction between amplifier input stages, maintaining signal integrity throughout complex signal distribution networks.
Why "Line Amp Conditioner" Not "Line Driver"?
Understanding the critical difference between voltage multipliers and professional signal conditioning
❌ Generic Line Driver Approach
Commodity Voltage Multiplier: Most line drivers represent the cheapest possible approach—simple voltage multiplication with minimal attention to signal quality, power supply design, or component selection. These products boost voltage but simultaneously introduce their own noise, distortion, and signal degradation. The philosophy is purely functional: multiply voltage, package it cheaply, ship it quickly. No consideration for sound quality, long-term reliability, or audiophile performance standards.
✅ Line Amp Conditioner Philosophy
Audiophile Signal Conditioning: Tru Technology's approach treats signal conditioning as the critical path component it truly is. Voltage gain is just one function—equally important are noise rejection, distortion elimination, power supply purity, and sonic transparency. The Line-8 v2 conditions the entire audio signal, removing interference while boosting voltage with imperceptible distortion. The result is a signal that's not only higher voltage but cleaner, quieter, and more dynamic than what entered the unit.
Line-8 v2 Model Variants
Three performance tiers to match your amplifier investment and sonic expectations
LINE-8 v2 (Standard)
This Model: The foundation of exceptional signal conditioning. Premium component selection, hand-built California construction, and extraordinary measured performance. Ideal pairing with Tungsten-Grande S and Tungsten S amplifiers. Delivers professional-grade signal conditioning that transforms system performance regardless of amplifier investment. The standard Line-8 v2 already exceeds the specifications of competitor's premium offerings.
LINE-8S v2 (Enhanced)
24 Upgraded Parts: Enhanced component selection with 24 upgraded parts elevates performance for discerning listeners. Recommended pairing with Billet Stock, Stage I, Stage II, Stage III amplifiers, as well as Tungsten-Grande iS and Tungsten iS models. The upgraded components provide even lower noise floor, enhanced dynamic range, and refined sonic character that complements premium amplifier investments.
LINE-8iS v2 (Ultimate)
36 Upgraded Parts: The ultimate expression of signal conditioning technology with 36 upgraded parts representing the finest components available. Perfect companion to Billet Stage IV and Stage V amplifiers, as well as Tungsten-Grande RS and Tungsten RS models. This flagship variant delivers absolute reference-grade performance for systems where no compromise is acceptable and sonic excellence is paramount.
💎 Previous Display Model Offering
This Tru Technology Line-8 v2 represents an exceptional opportunity to acquire a meticulously maintained display unit at significant savings. Originally showcased to demonstrate Tru Technology's uncompromising build quality and extraordinary measured performance, this line amp conditioner has been professionally tested and verified to perform identically to factory-fresh units.
Display models from Audio Intensity offer professional-grade performance with substantial value. These units have been carefully preserved in climate-controlled environments and handled exclusively by trained audio professionals. Each display model undergoes comprehensive functionality testing before being offered for sale, ensuring you receive a fully operational line conditioner backed by verified specifications and Tru Technology's legendary hand-built quality.
What "Display Model" Means:
- Pristine condition with minimal to no visible wear
- Never installed in a vehicle or used in daily operation
- Maintained in professional audio demonstration environment
- All original accessories and documentation included
- Fully tested and verified to manufacturer specifications
- Measured performance confirms <0.00006% THD+N spec
- Signal-to-noise ratio verified at >116dB
- Exceptional value compared to new retail pricing
- Backed by Audio Intensity's quality guarantee
- Perfect opportunity to experience California hand-built craftsmanship
- Transforms system performance regardless of other components
This is an extraordinary opportunity to own a hand-built Tru Technology Line-8 v2—a genuine masterpiece of signal conditioning engineering—at demo pricing. Experience professional studio-grade signal quality that will unlock the true potential of your amplifiers and transform your entire audio system with transparency that must be heard to be believed.
Ideal Applications
Transform system performance across diverse installation scenarios
🎼 Multi-Amplifier Systems
Essential for systems employing multiple amplifiers where source unit outputs must drive several inputs simultaneously. The Line-8 v2 provides robust voltage gain and multiple independent outputs that easily drive numerous amplifier inputs without voltage sag or loading issues. Dedicated outputs prevent ground loop formation and maintain signal integrity across complex distribution networks.
🎵 Active Crossover Installations
Perfect for active crossover systems requiring multiple amplifier channels with pristine signal quality. Place the Line-8 v2 before your DSP to provide robust input signals, or after your DSP to boost multiple crossover outputs feeding dedicated amplifiers for tweeters, midrange, and woofers. Transparent operation preserves crossover tuning integrity while providing optimal amplifier drive voltages.
🔊 Competition Sound Quality Systems
Critical component for competition SQ builds where judges evaluate system noise floor, dynamic range, and tonal accuracy. The extraordinary 0.00006% THD+N and >116dB S/N specifications ensure the Line-8 v2 adds no audible artifacts to the signal chain. Judges appreciate systems with inaudible noise floors and pristine signal paths—attributes the Line-8 v2 delivers consistently.
⚡ High-Power Amplifier Matching
High-performance amplifiers demand substantial input voltage to achieve their rated power output with optimal noise floor performance. The Line-8 v2's 4.5:1 gain ratio provides the robust drive voltage that premium amplifiers require, allowing you to operate amplifier gain controls at lower settings where noise performance is optimal. Unlock the true potential of your amplifier investment.
Unlock Your System's True Potential
The Tru Technology Line-8 v2 represents the critical missing link in modern car audio systems. Hand-built in California with obsessive attention to signal purity, component quality, and measured performance, this professional-grade line amp conditioner transforms weak source signals into robust drive voltages that allow your amplifiers to perform at their absolute best. With extraordinary specifications that include <0.00006% THD+N and >116dB S/N ratio, the Line-8 v2 delivers studio-grade transparency in your vehicle. This previous display model offers the rare opportunity to experience professional signal conditioning at exceptional value.
Tru Technology Line-8 v2 8 channel Line Amp Conditioner | Previous Demo
Frequently Asked Questions
Are these items authentic, and why are the prices so low?
This sale includes demo units we've used for customer demonstrations since 2016, new-old-stock from discontinued product lines, display models from trade shows, and carefully curated inventory we've collected over nearly a decade. Most items include original packaging where available.
What types of items are included in the relocation sale?
Our relocation sale includes demo units we've used for customer demonstrations, new old stock from discontinued product lines, and display models from trade shows. All items are genuine products from top car audio brands - we're simply clearing inventory we can't take to our new location. Items range from amplifiers and speakers to processors and accessories accumulated over nearly 10 years at this location.
Do sale items come with manufacturer warranties?
Warranty coverage varies by item and condition. New old stock items typically include full manufacturer warranty if still valid. Demo and display items may have limited or no manufacturer warranty remaining. We clearly state warranty status in each product description. All sales are final on relocation sale items.
How does shipping work for relocation sale items?
We ship relocation sale items using the same careful packaging methods as our regular inventory. Shipping costs are calculated at checkout based on size and weight. For multiple item purchases, we'll combine shipping where possible to save you money. Large items like subwoofer boxes may require freight shipping with additional costs.
Can I return or exchange relocation sale items?
All relocation sale items are sold as-is with no returns or exchanges. We encourage local pickup customers to inspect items before purchasing. For shipped items, we provide detailed descriptions and photos. Since we're relocating, we cannot accommodate returns or warranty service after the sale period ends.