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Before we get into the details of this product, we need to cover two things...
Time for orders: The LTA products are hand made to order. Please allow 3 to 4 weeks for production.
For those who demand the best, but want to keep things simple. The Z40 Integrated amplifier delivers the magic, realism, and 3D soundstage of our patented ZOTL technology, all in one (gorgeous) package.
A single-component solution, the Z40 Integrated amplifier incorporates the acclaimed ZOTL40 Reference power amplifier, a Berning-designed preamplifier, and LTA’s digital control system–beautifully packaged in a Fern & Roby-designed case.
The Z40i generates up to 51 watts per channel. This means the Z40i can easily drive speakers with sensitivity ratings at or above 85db for critical listening. For smaller rooms or non-critical listening, it can drive speakers rated down to 80db. In any configuration, listeners enjoy startling realism, plentiful bass, low noise, plus gorgeous mids and highs.
Note: The Z40 Integrated is a new product as of Q4 2019. All reviews and testimonials below are from the ZOTL40 Reference Power Amplifier, the amp on which the Z40 Integrated is based. Reviews and testimonials for the Z40 Integrated will be posted as they are published.
“This amp plays any type of music with an unconstrained ease, and can be listened to for hours on end without fatigue. While the convincing three dimensional staging, and densely rendered imaging are fabulous, in my opinion, it is its flowing musicality that is the Z40’s true star-turn. ”
We get it. You want the best sound you can get, but you don’t have the space, or desire, for separate components. With five inputs, LED display, brass touch buttons, home theater mode, and remote control, the Z40 Integrated amplifier gives you world-class sound that fits into your life.
“The ZOTL40 Reference manages to tip-toe the line between a classic tube sound, and a modern, solid-state A/B amplifier; and does so while being dead silent. Yep, you read that correctly. Silent.”
Traditional tube amps are known for their liquidity and linearity, but their “warmth” masks details and can sound thick. Solid state amplifiers give you that detail, but can be “clinical.” ZOTL amplifiers give you the best of both worlds: beautiful tube tone with the clarity of solid state (while being entirely tube-based).
The Z40 Integrated amplifier is based on David Berning’s patented ZOTL technology, the only advance in tube technology since the 1950’s. For a technology to be patented, it must be deemed “new, useful, and non-obvious.” We think that sums up our approach quite nicely.
The low-resonance aluminum chassis of the Z40 Integrated is designed and manufactured in Richmond, Virginia, by the award-winning industrial design crew at Fern & Roby. Brass touch buttons, LED display, and machined aluminum front and rear panels exude quality.
We use only premium, name-brand components. Belleson regulators. Ohno OCC wiring. Vishay Dale resistors. Mundorf caps. Typically, these are names you’ll only hear in amps that cost $10k or more.
Most tube amplifiers run through tubes every 1,000-2,000 hours. That sounds like a lot until you consider that we estimate tube life for our amps to be in the 10,000-20,000 hour range. Why? Because we use ⅓ the current through the tubes, which results in lower heat and dramatically longer tube life.
Every LTA product is designed and built by hand in Takoma Park, Maryland, by a group of technicians who are also musicians, audiophiles, and music lovers. Some of whom have been with us since the company’s earliest days.
The Z40 Integrated amplifier is hand built by technicians with years of experience building the complex ZOTL circuits. All our products are backed by a 2-year warranty and a 14-day no-questions-asked return policy.
Note: The Z40 Integrated is a new product as of Q4 2019. All reviews and testimonials below are from the ZOTL40 Reference Power Amplifier, the amp on which the Z40 Integrated is based. Reviews and testimonials for the Z40 Integrated will be posted as they are published.
Staging is layered, dimensional, and expressive; with a noticeable ability to render a sonic presentation of venue / studio space. Bass is tangible, tonally accomplished, and powerfully deep. Treble is very good, with a complete lack of grit or glare. Midrange is delightfully musical, and realistic. Tone is uniformly excellent throughout the frequency spectrum. This amp plays any type of music with an unconstrained ease, and can be listened to for hours on end without fatigue. While the convincing three dimensional staging, and densely rendered imaging are fabulous, in my opinion, it is its flowing musicality that is the Z40's true star-turn.
The Z40 Integrated amplifier offers all the benefits of the output transformer-less ZOTL technology: three times the tube life and one third the heat. With startling realism, plentiful bass, low noise, and gorgeous mids and highs – the Z40 Integrated amplifier is the perfect package.
The brass touch buttons, headphone outputs, easy-to-read, configurable display, and machined aluminum front and rear panels, exude the high quality manufacturing of handmade products in the USA.
The heart of the Z40 Integrated is the highly-acclaimed ZOTL40 Reference power amplifier. With the addition of a preamplifier borrowed from Berning’s $30K product, the existing ZOTL circuitry cross-couples to a gain stage, and matches perfectly with the power amplifier.
The amplifier is wrapped in our new control system featuring: 5 inputs (including one XLR input for balanced sources), tape in and out, LED display and input indicators, home theater mode, remote controlled stepped attenuation using premium Vishay Dale resistors, and a linear power supply configured with a Belleson regulator for extremely low noise.
The Z40 Integrated comes equipped with two headphone output jacks: a high output for less sensitive headphones and a low output for very sensitive headphones.
Delivering much higher power than solid state amps with the same power rating, the Z40 Integrated tube amplifier can drive your 85db and above sensitivity speakers to thundering levels with headroom to spare. Providing everything you need except speakers and a source, in a sleek new case, the Z40 Integrated is designed to last a lifetime.
LTA amplifier owners have found great enjoyment using their amps with a variety of speakers outside of the below ranges. The below are guidelines, not rules.
Critical listening environments: 85db sensitivity and above
Smaller rooms / lower volume levels / non-critical listening: 80db sensitivity and above
If you have questions about your specific speakers, chances are someone we know has tried them. Don’t hesitate to reach out with questions about your specific setup. Also, don’t forget we have a 14-day no-questions-asked return policy.
Inputs: 4 single-ended Cardas RCA stereo, 1 balanced input using two 3-pin XLRs
Speaker Output: 4 WBT copper speaker binding posts
Tape Monitor: 1 stereo tape monitor out, 1 stereo tape monitor in - both Cardas RCA
Front Panel Controls: 7 brass touch switches (power, input, tape monitor, up, down, menu/select, back), volume control, and headphone speaker switch
Remote Control: All front panel functions using paired Apple TV Remote
Volume Control: 100 stepped attenuator (smallest step 1/1000th of total value) using Vishay Dale 1% precision resistors
Output impedance:1.2 ohms
Input impedance:47k
100V / 120V / 240V operation: Auto-switching
Hum and noise: 94dB below full output (measured at 20Hz-20kHz)
Power output with 4-ohm load:46W, 0.5% THD
Power output with 8-ohm load:51W, 0.5% THD
Frequency response (8-ohm load): 6Hz to 60kHz, +0, -.5dB
Amplifier class: Push-pull Class AB
Voltage gain (8-ohm load):23dB
Size: 16 inches wide, 5 1/8 inches tall, 16 inches deep (including connectors)
Net weight: Amplifier: 18 lbs./8.2 kg
Finish: Aluminum case
Tube complement: Preamp section: 2x 12AU7, Power section: 2x 12AU7s, 2x 12AT7s, 4x KT77
Home Theater Function can select any input for fixed volume
Display:16 Levels of brightness and programmable 7-second time out
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