ARTA vs STRADA: which needs more amplifier?

The Meze ARTA is 225Ω at 98.0 dB/mW; the Meze STRADA is 40Ω at 111.0 dB/mW. This page covers what they ask of an amplifier, not how they sound.

The ARTA needs 13.0 dB more than the STRADA to reach the same loudness — 1.6 mW against 0.08 mW.

Side by side

The numbers that decide it

Specification	ARTA	STRADA
Impedance	225 Ω	40 Ω
Sensitivity	98.0 dB/mW	111.0 dB/mW
Sensitivity (voltage)	104.5 dB/V	125.0 dB/V
Power for 100 dB	1.6 mW	0.08 mW
Voltage for 100 dB	0.60 V	56 mV
Current for 100 dB	2.7 mA	1.4 mA
Highest source impedance that leaves them alone (one-eighth rule)	28.12 Ω	5.00 Ω
Sources that reach 100 dB out of 280	280	280

What separates them

Where the two part company

Every source in the database that drives one of them drives the other. On power, the choice between these two changes nothing about what amplifier you need.

18 sources are low enough in output impedance for the ARTA under the one-eighth rule but not for the STRADA (Zoom AMS-22, Arturia MiniFuse 2, Arturia MiniFuse 1, 15 more).

10 sources stay below the audible-hiss threshold with the ARTA but cross it with the STRADA (FiiO BTR11, FiiO K11 R2R, Lake People G103-S Mk II, 7 more).

280 of the 280 sources here reach 100 dB on both.

At the level you actually listen at

What each one needs from 80 to 105 dB

The ARTA is more demanding than 91% of the 567 non-electrostatic models in this database; the STRADA than 14%.

dB SPL	ARTA power	ARTA voltage	STRADA power	STRADA voltage
80	0.02 mW	60 mV	0.8 µW	6 mV
85	0.05 mW	0.11 V	2.5 µW	10 mV
90	0.16 mW	0.19 V	7.9 µW	18 mV
95	0.50 mW	0.34 V	0.03 mW	32 mV
100	1.6 mW	0.60 V	0.08 mW	56 mV
105	5.0 mW	1.06 V	0.25 mW	0.10 V

What drives both

The cheapest source that satisfies both

Source	Price	Headroom, ARTA	Headroom, STRADA	Output impedance	Noise
JadeAudio JA11	$20	4.3 dB	24.8 dB	0.5 Ω	1.7 µV
FiiO KA11	$29	12.6 dB	33.0 dB	0.7 Ω	1.7 µV
FiiO BTR13	$59	9.3 dB	30.0 dB	0.6 Ω	1.0 µV

Of the 280 sources here, 280 reach 100 dB on both. 62 of them also publish an output impedance low enough for both under the one-eighth rule and a noise figure that stays below the audible-hiss threshold with both.

The cheapest of the 62 is the JadeAudio JA11, at $20. It leaves 4.3 dB of headroom on the ARTA and 24.8 dB on the STRADA, its output impedance is 0.5 Ω against a one-eighth limit of 28.12 Ω and 5.00 Ω, and its noise figure puts the hiss floor 31 dB and 10 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.

Try any other source.

Frequency response

What each sheet prints, and what it is worth

Model	As printed	Tolerance	Standard
ARTA	3 Hz - 115 kHz	not printed	not printed
STRADA	5 Hz - 30 kHz	not printed	not printed

Meze prints 3 Hz - 115 kHz for the ARTA and 5 Hz - 30 kHz for the STRADA.

Neither range has a tolerance printed beside it, so a wider range on one sheet is not deeper bass or more treble.

Not a measurement; maker by maker.

Both pages in full

Both have a page of their own. In full: Meze ARTA and Meze STRADA. Every figure on this page comes from what Meze published, or is derived from it — what that maker publishes, counted.