ZOTL 40 Reference

Here is the second generation of our most powerfull ZOTL amplifier. Now in a sleek case design created by Fern & Roby LTA moves into a design that fits nice in many different interior designs. The ZOTL 40 Reference is delivered with NOS Mullard EL34. These tubes is in a high demand and hard to get these days. Need more power? The amp can easy be configured to a work as a mono amplifier. This amp is now also available as an integrated amplifier. Check it out.


Prices in Euro incl. vat excl. freight:

ZOTL 40 Reference with NOS Mullard EL34


High Quality Puritan Audio Laboratories mains cable 1 meter

High Quality Puritan Audio Laboratories mains cable 1,5 meter





Key specifications:

Sensitivity: 1.2V provides full output

Output impedance: 1.6 ohms

Input impedance: 50k

100V / 120V / 240V operation: Auto-switching

Hum and noise: 94dB below full output (measured between 8Hz-60kHz +0/-0.5dB)

Gain: 23db

Power output with 4-ohm load: up to 51W, 0.5% THD

Power output with 8-ohm load: up to 46W, 0.5% THD

Frequency response (8-ohm load): 8Hz to 50kHz, +0, -.5dB

Amplifier class: Push-pull Class AB

Net weight: 15 lbs

Dimensions: 17 inches (43 cm) wide, 5 inches (12.7 cm) tall, 13.875 inches (35.2 cm) deep

Finish: Aluminum case

Tube complement: two 12AX7s, two 12AU7s, & four Mullard NOS EL-34s - No adjustments – tubes are auto-biased

Speaker sensitivity & room recommendation.

LTA amplifier owners have found great enjoyment using their amps with a variety of speaker outside of the below ranges. The below are guidelines, not rules. 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.

Critical listening environments: 85db sensitivity and above

Smaller rooms / lower volume levels / non-critical listening: 80db sensitivity and above.

Also, don’t forget we have a 14-day no-questions-asked return policy.

A couple of reviews & Videos:



Wow Factor ApS

Address: Vesterbrogade 5b

Postal Code: 3250

City: Gilleleje

Country: Denmark.

Phone: +45 3219 4490.

Office hours Monday - Friday CET: 10-16.00

Company vat / id: DK41479108

Manager: Maricel Ma-asin

Bank: Nordea. Reg: 2255, Account 6294618684

IBAN: DK4820006294618684


By boat: 56°07'34.6"N 12°18'37.2"E