NOS - Peerless CT 62 Poly Cone Tweeter - 4ohm Version

New Old Stock (NOS). These are no longer in production. Available while supplies last.

This paper cone tweeter is a good replacement tweeter that fits many brands and models. Commonly used in McIntosh and TONS more vintage speakers. Also be used to replace the Peerless MT 20 HFC tweeter.

Notes from McIntosh:
- The 4, 8 ohm and 16 ohm tweeters can be used interchangeably in the ML systems despite the difference in impedance. Use these tweeters were used in the McIntosh ML-1C, ML-2C, ML-2M, ML-4C, ML-4M and ML-10C. The positive terminal is indicated by a red insulating washer.

Dimensions:

Outside Diameter: 2.3/8″ Square
Cutout Diameter: 2.125″
Mounting Depth: 1.31″

We could not find specs for the 4ohm so these are the 8ohm version specs:

CT 62 H
62 CT 13 40 PPB FF 8 ohm - Order ID: 801730

Small cone tweeter with ferrofluid. This tweeter removes all doubts about using a cone tweeter in hi-fi systems. The voice coil is cooled and damped by magnetic oil, and this viscous damping eliminates the rise in resonance. The impedance curve is nearly linear and it is therefore very easy to make cross overs for this speaker. An absolute excellent tweeter for use in smaller hi-fi systems especially as tweeter in satellites.

CT 62 H
Thiele Small parameters:
Nominal impedance	Zn	(ohm)	8
Minimum impedance/at freq.	Zmin	(ohm/Hz)	6.6/2600
Maximum impedance	Zo	(ohm)	6.9
DC resistance	Re	(ohm)	6.1
Voice coil inductance	Le	(mH)	0.1
Resonance Frequency	fs	(Hz)	1500
Mechanical Q factor	Qms		0.89
Electrical Q factor	Qes		7.07
Total Q factor	Qts		0.79
Mechanical resistance	Rms	(Kg/s)	3.01
Moving mass	Mms	(g)	0.28
Suspension compliance	Cms	(mm/N)	0.04
Effective cone diameter	D	(cm)	3.7
Effective piston area	Sd	(cm²)	10.8
Force factor	Bl	(N/A)	1.5
Reference voltage sensitivity Re 2.83V 1m at 2600 Hz (Measured)		(dB)	90

Magnet and voice coil parameters:
Voice coil diameter	d	(mm)	13
Voice coil length	h	(mm)	1.8
Voice coil layers	n		2
Flux density in gap	B	(T)	1.0
Total useful flux		(mWb)	0.1
Height of the gap	hg	(mm)	2.5
Diameter of magnet	dm	(mm)	40
Height of magnet	hm	(mm)	7.5
Weight of magnet		(kg)	0.04

	Power handling:
	Long term Max System Power (IEC)	(W)	100